1 | /* $Id: CbcOrClpParam.cpp 2469 2019-05-03 09:36:37Z stefan $ */ |
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2 | // Copyright (C) 2002, International Business Machines |
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3 | // Corporation and others. All Rights Reserved. |
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4 | // This code is licensed under the terms of the Eclipse Public License (EPL). |
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5 | |
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6 | #include "CoinPragma.hpp" |
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7 | #include "CoinTime.hpp" |
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8 | #include "CbcOrClpParam.hpp" |
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9 | |
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10 | #include <string> |
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11 | #include <iostream> |
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12 | #include <cassert> |
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13 | |
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14 | #ifdef COIN_HAS_CBC |
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15 | #ifdef COIN_HAS_CLP |
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16 | #include "OsiClpSolverInterface.hpp" |
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17 | #include "ClpSimplex.hpp" |
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18 | #endif |
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19 | #include "CbcModel.hpp" |
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20 | #endif |
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21 | #include "CoinHelperFunctions.hpp" |
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22 | #ifdef COIN_HAS_CLP |
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23 | #include "ClpSimplex.hpp" |
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24 | #include "ClpFactorization.hpp" |
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25 | #endif |
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26 | #ifdef COIN_HAS_READLINE |
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27 | #include <readline/readline.h> |
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28 | #include <readline/history.h> |
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29 | #endif |
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30 | #ifdef COIN_HAS_CBC |
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31 | // from CoinSolve |
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32 | static char coin_prompt[] = "Coin:"; |
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33 | #else |
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34 | static char coin_prompt[] = "Clp:"; |
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35 | #endif |
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36 | #ifdef CLP_CILK |
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37 | #ifndef CBC_THREAD |
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38 | #define CBC_THREAD |
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39 | #endif |
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40 | #endif |
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41 | #if defined(COIN_HAS_WSMP) && !defined(USE_EKKWSSMP) |
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42 | #ifndef CBC_THREAD |
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43 | #define CBC_THREAD |
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44 | #endif |
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45 | #endif |
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46 | #include "ClpConfig.h" |
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47 | #ifdef CLP_HAS_ABC |
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48 | #include "AbcCommon.hpp" |
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49 | #endif |
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50 | static bool doPrinting = true; |
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51 | static std::string afterEquals = ""; |
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52 | static char printArray[250]; |
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53 | #if COIN_INT_MAX == 0 |
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54 | #undef COIN_INT_MAX |
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55 | #define COIN_INT_MAX 2147483647 |
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56 | #endif |
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57 | #if FLUSH_PRINT_BUFFER > 2 |
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58 | int coinFlushBufferFlag = 0; |
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59 | #endif |
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60 | void setCbcOrClpPrinting(bool yesNo) |
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61 | { |
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62 | doPrinting = yesNo; |
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63 | } |
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64 | //############################################################################# |
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65 | // Constructors / Destructor / Assignment |
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66 | //############################################################################# |
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67 | |
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68 | //------------------------------------------------------------------- |
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69 | // Default Constructor |
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70 | //------------------------------------------------------------------- |
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71 | CbcOrClpParam::CbcOrClpParam() |
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72 | : type_(CBC_PARAM_NOTUSED_INVALID) |
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73 | , lowerDoubleValue_(0.0) |
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74 | , upperDoubleValue_(0.0) |
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75 | , lowerIntValue_(0) |
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76 | , upperIntValue_(0) |
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77 | , lengthName_(0) |
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78 | , lengthMatch_(0) |
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79 | , definedKeyWords_() |
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80 | , name_() |
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81 | , shortHelp_() |
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82 | , longHelp_() |
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83 | , action_(CBC_PARAM_NOTUSED_INVALID) |
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84 | , currentKeyWord_(-1) |
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85 | , display_(0) |
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86 | , intValue_(-1) |
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87 | , doubleValue_(-1.0) |
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88 | , stringValue_("") |
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89 | , whereUsed_(7) |
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90 | , fakeKeyWord_(-1) |
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91 | , fakeValue_(0) |
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92 | { |
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93 | } |
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94 | // Other constructors |
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95 | CbcOrClpParam::CbcOrClpParam(std::string name, std::string help, |
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96 | double lower, double upper, CbcOrClpParameterType type, |
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97 | int display) |
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98 | : type_(type) |
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99 | , lowerIntValue_(0) |
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100 | , upperIntValue_(0) |
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101 | , definedKeyWords_() |
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102 | , name_(name) |
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103 | , shortHelp_(help) |
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104 | , longHelp_() |
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105 | , action_(type) |
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106 | , currentKeyWord_(-1) |
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107 | , display_(display) |
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108 | , intValue_(-1) |
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109 | , doubleValue_(-1.0) |
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110 | , stringValue_("") |
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111 | , whereUsed_(7) |
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112 | , fakeKeyWord_(-1) |
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113 | , fakeValue_(0) |
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114 | { |
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115 | lowerDoubleValue_ = lower; |
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116 | upperDoubleValue_ = upper; |
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117 | gutsOfConstructor(); |
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118 | } |
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119 | CbcOrClpParam::CbcOrClpParam(std::string name, std::string help, |
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120 | int lower, int upper, CbcOrClpParameterType type, |
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121 | int display) |
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122 | : type_(type) |
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123 | , lowerDoubleValue_(0.0) |
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124 | , upperDoubleValue_(0.0) |
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125 | , definedKeyWords_() |
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126 | , name_(name) |
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127 | , shortHelp_(help) |
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128 | , longHelp_() |
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129 | , action_(type) |
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130 | , currentKeyWord_(-1) |
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131 | , display_(display) |
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132 | , intValue_(-1) |
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133 | , doubleValue_(-1.0) |
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134 | , stringValue_("") |
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135 | , whereUsed_(7) |
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136 | , fakeKeyWord_(-1) |
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137 | , fakeValue_(0) |
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138 | { |
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139 | gutsOfConstructor(); |
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140 | lowerIntValue_ = lower; |
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141 | upperIntValue_ = upper; |
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142 | } |
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143 | // Other strings will be added by append |
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144 | CbcOrClpParam::CbcOrClpParam(std::string name, std::string help, |
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145 | std::string firstValue, |
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146 | CbcOrClpParameterType type, int whereUsed, |
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147 | int display) |
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148 | : type_(type) |
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149 | , lowerDoubleValue_(0.0) |
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150 | , upperDoubleValue_(0.0) |
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151 | , lowerIntValue_(0) |
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152 | , upperIntValue_(0) |
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153 | , definedKeyWords_() |
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154 | , name_(name) |
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155 | , shortHelp_(help) |
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156 | , longHelp_() |
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157 | , action_(type) |
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158 | , currentKeyWord_(0) |
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159 | , display_(display) |
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160 | , intValue_(-1) |
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161 | , doubleValue_(-1.0) |
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162 | , stringValue_("") |
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163 | , whereUsed_(whereUsed) |
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164 | , fakeKeyWord_(-1) |
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165 | , fakeValue_(0) |
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166 | { |
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167 | gutsOfConstructor(); |
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168 | definedKeyWords_.push_back(firstValue); |
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169 | } |
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170 | // Action |
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171 | CbcOrClpParam::CbcOrClpParam(std::string name, std::string help, |
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172 | CbcOrClpParameterType type, int whereUsed, |
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173 | int display) |
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174 | : type_(type) |
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175 | , lowerDoubleValue_(0.0) |
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176 | , upperDoubleValue_(0.0) |
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177 | , lowerIntValue_(0) |
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178 | , upperIntValue_(0) |
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179 | , definedKeyWords_() |
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180 | , name_(name) |
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181 | , shortHelp_(help) |
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182 | , longHelp_() |
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183 | , action_(type) |
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184 | , currentKeyWord_(-1) |
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185 | , display_(display) |
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186 | , intValue_(-1) |
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187 | , doubleValue_(-1.0) |
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188 | , stringValue_("") |
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189 | , fakeKeyWord_(-1) |
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190 | , fakeValue_(0) |
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191 | { |
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192 | whereUsed_ = whereUsed; |
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193 | gutsOfConstructor(); |
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194 | } |
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195 | |
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196 | //------------------------------------------------------------------- |
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197 | // Copy constructor |
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198 | //------------------------------------------------------------------- |
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199 | CbcOrClpParam::CbcOrClpParam(const CbcOrClpParam &rhs) |
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200 | { |
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201 | type_ = rhs.type_; |
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202 | lowerDoubleValue_ = rhs.lowerDoubleValue_; |
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203 | upperDoubleValue_ = rhs.upperDoubleValue_; |
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204 | lowerIntValue_ = rhs.lowerIntValue_; |
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205 | upperIntValue_ = rhs.upperIntValue_; |
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206 | lengthName_ = rhs.lengthName_; |
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207 | lengthMatch_ = rhs.lengthMatch_; |
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208 | definedKeyWords_ = rhs.definedKeyWords_; |
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209 | name_ = rhs.name_; |
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210 | shortHelp_ = rhs.shortHelp_; |
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211 | longHelp_ = rhs.longHelp_; |
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212 | action_ = rhs.action_; |
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213 | currentKeyWord_ = rhs.currentKeyWord_; |
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214 | display_ = rhs.display_; |
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215 | intValue_ = rhs.intValue_; |
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216 | doubleValue_ = rhs.doubleValue_; |
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217 | stringValue_ = rhs.stringValue_; |
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218 | whereUsed_ = rhs.whereUsed_; |
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219 | fakeKeyWord_ = rhs.fakeKeyWord_; |
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220 | fakeValue_ = rhs.fakeValue_; |
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221 | } |
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222 | |
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223 | //------------------------------------------------------------------- |
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224 | // Destructor |
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225 | //------------------------------------------------------------------- |
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226 | CbcOrClpParam::~CbcOrClpParam() |
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227 | { |
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228 | } |
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229 | |
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230 | //---------------------------------------------------------------- |
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231 | // Assignment operator |
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232 | //------------------------------------------------------------------- |
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233 | CbcOrClpParam & |
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234 | CbcOrClpParam::operator=(const CbcOrClpParam &rhs) |
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235 | { |
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236 | if (this != &rhs) { |
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237 | type_ = rhs.type_; |
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238 | lowerDoubleValue_ = rhs.lowerDoubleValue_; |
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239 | upperDoubleValue_ = rhs.upperDoubleValue_; |
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240 | lowerIntValue_ = rhs.lowerIntValue_; |
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241 | upperIntValue_ = rhs.upperIntValue_; |
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242 | lengthName_ = rhs.lengthName_; |
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243 | lengthMatch_ = rhs.lengthMatch_; |
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244 | definedKeyWords_ = rhs.definedKeyWords_; |
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245 | name_ = rhs.name_; |
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246 | shortHelp_ = rhs.shortHelp_; |
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247 | longHelp_ = rhs.longHelp_; |
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248 | action_ = rhs.action_; |
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249 | currentKeyWord_ = rhs.currentKeyWord_; |
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250 | display_ = rhs.display_; |
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251 | intValue_ = rhs.intValue_; |
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252 | doubleValue_ = rhs.doubleValue_; |
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253 | stringValue_ = rhs.stringValue_; |
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254 | whereUsed_ = rhs.whereUsed_; |
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255 | fakeKeyWord_ = rhs.fakeKeyWord_; |
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256 | fakeValue_ = rhs.fakeValue_; |
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257 | } |
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258 | return *this; |
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259 | } |
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260 | void CbcOrClpParam::gutsOfConstructor() |
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261 | { |
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262 | std::string::size_type shriekPos = name_.find('!'); |
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263 | lengthName_ = static_cast< unsigned int >(name_.length()); |
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264 | if (shriekPos == std::string::npos) { |
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265 | //does not contain '!' |
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266 | lengthMatch_ = lengthName_; |
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267 | } else { |
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268 | lengthMatch_ = static_cast< unsigned int >(shriekPos); |
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269 | name_ = name_.substr(0, shriekPos) + name_.substr(shriekPos + 1); |
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270 | lengthName_--; |
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271 | } |
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272 | } |
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273 | // Sets value of fake keyword to current size of keywords |
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274 | void CbcOrClpParam::setFakeKeyWord(int fakeValue) |
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275 | { |
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276 | fakeKeyWord_ = static_cast< int >(definedKeyWords_.size()); |
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277 | assert(fakeKeyWord_ > 0); |
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278 | fakeValue_ = fakeValue; |
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279 | assert(fakeValue_ >= 0); |
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280 | } |
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281 | /* Returns current parameter option position |
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282 | but if fake keyword returns fakeValue_ |
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283 | */ |
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284 | int CbcOrClpParam::currentOptionAsInteger() const |
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285 | { |
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286 | int fakeInteger; |
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287 | return currentOptionAsInteger(fakeInteger); |
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288 | } |
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289 | /* Returns current parameter option position |
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290 | but if fake keyword returns fakeValue_ and sets |
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291 | fakeInteger to value |
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292 | */ |
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293 | int CbcOrClpParam::currentOptionAsInteger(int &fakeInteger) const |
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294 | { |
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295 | fakeInteger = -COIN_INT_MAX; |
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296 | if (fakeKeyWord_ < 0) { |
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297 | return currentKeyWord_; |
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298 | } else if (currentKeyWord_ >= 0 && currentKeyWord_ < fakeKeyWord_) { |
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299 | return currentKeyWord_; |
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300 | } else { |
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301 | // fake |
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302 | if (currentKeyWord_ < 0) |
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303 | fakeInteger = currentKeyWord_ + 1000; |
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304 | else |
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305 | fakeInteger = currentKeyWord_ - 1000; |
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306 | return fakeValue_; |
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307 | } |
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308 | } |
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309 | // Returns length of name for printing |
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310 | int CbcOrClpParam::lengthMatchName() const |
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311 | { |
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312 | if (lengthName_ == lengthMatch_) |
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313 | return lengthName_; |
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314 | else |
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315 | return lengthName_ + 2; |
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316 | } |
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317 | // Insert string (only valid for keywords) |
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318 | void CbcOrClpParam::append(std::string keyWord) |
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319 | { |
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320 | definedKeyWords_.push_back(keyWord); |
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321 | } |
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322 | |
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323 | int CbcOrClpParam::matches(std::string input) const |
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324 | { |
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325 | // look up strings to do more elegantly |
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326 | if (input.length() > lengthName_) { |
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327 | return 0; |
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328 | } else { |
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329 | unsigned int i; |
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330 | for (i = 0; i < input.length(); i++) { |
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331 | if (tolower(name_[i]) != tolower(input[i])) |
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332 | break; |
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333 | } |
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334 | if (i < input.length()) { |
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335 | return 0; |
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336 | } else if (i >= lengthMatch_) { |
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337 | return 1; |
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338 | } else { |
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339 | // matched but too short |
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340 | return 2; |
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341 | } |
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342 | } |
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343 | } |
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344 | // Returns name which could match |
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345 | std::string |
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346 | CbcOrClpParam::matchName() const |
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347 | { |
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348 | if (lengthMatch_ == lengthName_) |
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349 | return name_; |
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350 | else |
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351 | return name_.substr(0, lengthMatch_) + "(" + name_.substr(lengthMatch_) + ")"; |
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352 | } |
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353 | |
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354 | // Returns parameter option which matches (-1 if none) |
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355 | int CbcOrClpParam::parameterOption(std::string check) const |
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356 | { |
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357 | int numberItems = static_cast< int >(definedKeyWords_.size()); |
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358 | if (!numberItems) { |
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359 | return -1; |
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360 | } else { |
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361 | int whichItem = 0; |
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362 | unsigned int it; |
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363 | for (it = 0; it < definedKeyWords_.size(); it++) { |
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364 | std::string thisOne = definedKeyWords_[it]; |
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365 | std::string::size_type shriekPos = thisOne.find('!'); |
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366 | size_t length1 = thisOne.length(); |
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367 | size_t length2 = length1; |
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368 | if (shriekPos != std::string::npos) { |
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369 | //contains '!' |
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370 | length2 = shriekPos; |
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371 | thisOne = thisOne.substr(0, shriekPos) + thisOne.substr(shriekPos + 1); |
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372 | length1 = thisOne.length(); |
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373 | } |
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374 | if (check.length() <= length1 && length2 <= check.length()) { |
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375 | unsigned int i; |
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376 | for (i = 0; i < check.length(); i++) { |
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377 | if (tolower(thisOne[i]) != tolower(check[i])) |
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378 | break; |
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379 | } |
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380 | if (i < check.length()) { |
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381 | whichItem++; |
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382 | } else if (i >= length2) { |
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383 | break; |
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384 | } |
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385 | } else { |
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386 | whichItem++; |
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387 | } |
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388 | } |
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389 | if (whichItem < numberItems) { |
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390 | return whichItem; |
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391 | } else { |
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392 | if (fakeKeyWord_ <= 0) |
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393 | return -1; |
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394 | // allow plus or minus |
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395 | int n; |
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396 | if (check.substr(0, 4) == "plus" || check.substr(0, 4) == "PLUS") { |
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397 | n = 4; |
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398 | } else if (check.substr(0, 5) == "minus" || check.substr(0, 5) == "MINUS") { |
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399 | n = 5; |
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400 | } else { |
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401 | return -1; |
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402 | } |
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403 | int value = 0; |
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404 | std::string field = check.substr(n); |
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405 | if (field != "EOL") { |
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406 | const char *start = field.c_str(); |
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407 | char *endPointer = NULL; |
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408 | // check valid |
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409 | value = static_cast< int >(strtol(start, &endPointer, 10)); |
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410 | if (*endPointer != '\0') { |
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411 | return -1; |
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412 | } |
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413 | if (n == 4) |
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414 | return value + 1000; |
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415 | else |
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416 | return -value - 1000; |
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417 | } else { |
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418 | return -1; |
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419 | } |
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420 | } |
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421 | } |
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422 | } |
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423 | // Prints parameter options |
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424 | void CbcOrClpParam::printOptions() const |
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425 | { |
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426 | std::cout << "<Possible options for " << name_ << " are:"; |
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427 | unsigned int it; |
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428 | for (it = 0; it < definedKeyWords_.size(); it++) { |
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429 | std::string thisOne = definedKeyWords_[it]; |
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430 | std::string::size_type shriekPos = thisOne.find('!'); |
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431 | if (shriekPos != std::string::npos) { |
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432 | //contains '!' |
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433 | thisOne = thisOne.substr(0, shriekPos) + "(" + thisOne.substr(shriekPos + 1) + ")"; |
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434 | } |
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435 | std::cout << " " << thisOne; |
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436 | } |
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437 | assert(currentKeyWord_ >= 0 && currentKeyWord_ < static_cast< int >(definedKeyWords_.size())); |
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438 | std::string current = definedKeyWords_[currentKeyWord_]; |
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439 | std::string::size_type shriekPos = current.find('!'); |
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440 | if (shriekPos != std::string::npos) { |
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441 | //contains '!' |
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442 | current = current.substr(0, shriekPos) + "(" + current.substr(shriekPos + 1) + ")"; |
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443 | } |
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444 | std::cout << ";\n\tcurrent " << current << ">" << std::endl; |
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445 | } |
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446 | // Print action and string |
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447 | void CbcOrClpParam::printString() const |
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448 | { |
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449 | if (name_ == "directory") |
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450 | std::cout << "Current working directory is " << stringValue_ << std::endl; |
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451 | else if (name_.substr(0, 6) == "printM") |
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452 | std::cout << "Current value of printMask is " << stringValue_ << std::endl; |
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453 | else |
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454 | std::cout << "Current default (if $ as parameter) for " << name_ |
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455 | << " is " << stringValue_ << std::endl; |
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456 | } |
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457 | void CoinReadPrintit(const char *input) |
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458 | { |
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459 | int length = static_cast< int >(strlen(input)); |
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460 | char temp[101]; |
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461 | int i; |
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462 | int n = 0; |
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463 | for (i = 0; i < length; i++) { |
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464 | if (input[i] == '\n') { |
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465 | temp[n] = '\0'; |
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466 | std::cout << temp << std::endl; |
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467 | n = 0; |
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468 | } else if (n >= 65 && input[i] == ' ') { |
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469 | temp[n] = '\0'; |
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470 | std::cout << temp << std::endl; |
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471 | n = 0; |
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472 | } else if (n || input[i] != ' ') { |
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473 | temp[n++] = input[i]; |
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474 | } |
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475 | } |
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476 | if (n) { |
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477 | temp[n] = '\0'; |
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478 | std::cout << temp << std::endl; |
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479 | } |
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480 | } |
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481 | // Print Long help |
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482 | void CbcOrClpParam::printLongHelp() const |
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483 | { |
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484 | if (type_ >= 1 && type_ < 600) { |
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485 | CoinReadPrintit(longHelp_.c_str()); |
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486 | if (type_ < CLP_PARAM_INT_SOLVERLOGLEVEL) { |
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487 | printf("<Range of values is %g to %g;\n\tcurrent %g>\n", lowerDoubleValue_, upperDoubleValue_, doubleValue_); |
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488 | assert(upperDoubleValue_ > lowerDoubleValue_); |
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489 | } else if (type_ < CLP_PARAM_STR_DIRECTION) { |
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490 | printf("<Range of values is %d to %d;\n\tcurrent %d>\n", lowerIntValue_, upperIntValue_, intValue_); |
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491 | assert(upperIntValue_ > lowerIntValue_); |
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492 | } else if (type_ < CLP_PARAM_ACTION_DIRECTORY) { |
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493 | printOptions(); |
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494 | } |
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495 | } |
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496 | } |
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497 | #ifdef COIN_HAS_CBC |
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498 | int CbcOrClpParam::setDoubleParameter(OsiSolverInterface *model, double value) |
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499 | { |
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500 | int returnCode; |
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501 | setDoubleParameterWithMessage(model, value, returnCode); |
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502 | if (doPrinting && strlen(printArray)) |
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503 | std::cout << printArray << std::endl; |
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504 | return returnCode; |
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505 | } |
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506 | // Sets double parameter and returns printable string and error code |
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507 | const char * |
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508 | CbcOrClpParam::setDoubleParameterWithMessage(OsiSolverInterface *model, double value, int &returnCode) |
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509 | { |
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510 | if (value < lowerDoubleValue_ || value > upperDoubleValue_) { |
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511 | sprintf(printArray, "%g was provided for %s - valid range is %g to %g", |
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512 | value, name_.c_str(), lowerDoubleValue_, upperDoubleValue_); |
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513 | std::cout << value << " was provided for " << name_ << " - valid range is " << lowerDoubleValue_ << " to " << upperDoubleValue_ << std::endl; |
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514 | returnCode = 1; |
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515 | } else { |
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516 | double oldValue = doubleValue_; |
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517 | doubleValue_ = value; |
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518 | switch (type_) { |
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519 | case CLP_PARAM_DBL_DUALTOLERANCE: |
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520 | model->getDblParam(OsiDualTolerance, oldValue); |
---|
521 | model->setDblParam(OsiDualTolerance, value); |
---|
522 | break; |
---|
523 | case CLP_PARAM_DBL_PRIMALTOLERANCE: |
---|
524 | model->getDblParam(OsiPrimalTolerance, oldValue); |
---|
525 | model->setDblParam(OsiPrimalTolerance, value); |
---|
526 | break; |
---|
527 | default: |
---|
528 | break; |
---|
529 | } |
---|
530 | sprintf(printArray, "%s was changed from %g to %g", |
---|
531 | name_.c_str(), oldValue, value); |
---|
532 | returnCode = 0; |
---|
533 | } |
---|
534 | return printArray; |
---|
535 | } |
---|
536 | #endif |
---|
537 | #ifdef COIN_HAS_CLP |
---|
538 | int CbcOrClpParam::setDoubleParameter(ClpSimplex *model, double value) |
---|
539 | { |
---|
540 | int returnCode; |
---|
541 | setDoubleParameterWithMessage(model, value, returnCode); |
---|
542 | if (doPrinting && strlen(printArray)) |
---|
543 | std::cout << printArray << std::endl; |
---|
544 | return returnCode; |
---|
545 | } |
---|
546 | // Sets int parameter and returns printable string and error code |
---|
547 | const char * |
---|
548 | CbcOrClpParam::setDoubleParameterWithMessage(ClpSimplex *model, double value, int &returnCode) |
---|
549 | { |
---|
550 | double oldValue = doubleValue_; |
---|
551 | if (value < lowerDoubleValue_ || value > upperDoubleValue_) { |
---|
552 | sprintf(printArray, "%g was provided for %s - valid range is %g to %g", |
---|
553 | value, name_.c_str(), lowerDoubleValue_, upperDoubleValue_); |
---|
554 | returnCode = 1; |
---|
555 | } else { |
---|
556 | sprintf(printArray, "%s was changed from %g to %g", |
---|
557 | name_.c_str(), oldValue, value); |
---|
558 | returnCode = 0; |
---|
559 | doubleValue_ = value; |
---|
560 | switch (type_) { |
---|
561 | case CLP_PARAM_DBL_DUALTOLERANCE: |
---|
562 | model->setDualTolerance(value); |
---|
563 | break; |
---|
564 | case CLP_PARAM_DBL_PRIMALTOLERANCE: |
---|
565 | model->setPrimalTolerance(value); |
---|
566 | break; |
---|
567 | case CLP_PARAM_DBL_ZEROTOLERANCE: |
---|
568 | model->setSmallElementValue(value); |
---|
569 | break; |
---|
570 | case CLP_PARAM_DBL_DUALBOUND: |
---|
571 | model->setDualBound(value); |
---|
572 | break; |
---|
573 | case CLP_PARAM_DBL_PRIMALWEIGHT: |
---|
574 | model->setInfeasibilityCost(value); |
---|
575 | break; |
---|
576 | #ifndef COIN_HAS_CBC |
---|
577 | case CLP_PARAM_DBL_TIMELIMIT: |
---|
578 | model->setMaximumSeconds(value); |
---|
579 | break; |
---|
580 | #endif |
---|
581 | case CLP_PARAM_DBL_OBJSCALE: |
---|
582 | model->setObjectiveScale(value); |
---|
583 | break; |
---|
584 | case CLP_PARAM_DBL_RHSSCALE: |
---|
585 | model->setRhsScale(value); |
---|
586 | break; |
---|
587 | case CLP_PARAM_DBL_PRESOLVETOLERANCE: |
---|
588 | model->setDblParam(ClpPresolveTolerance, value); |
---|
589 | break; |
---|
590 | default: |
---|
591 | break; |
---|
592 | } |
---|
593 | } |
---|
594 | return printArray; |
---|
595 | } |
---|
596 | double |
---|
597 | CbcOrClpParam::doubleParameter(ClpSimplex *model) const |
---|
598 | { |
---|
599 | double value; |
---|
600 | switch (type_) { |
---|
601 | #ifndef COIN_HAS_CBC |
---|
602 | case CLP_PARAM_DBL_DUALTOLERANCE: |
---|
603 | value = model->dualTolerance(); |
---|
604 | break; |
---|
605 | case CLP_PARAM_DBL_PRIMALTOLERANCE: |
---|
606 | value = model->primalTolerance(); |
---|
607 | break; |
---|
608 | #endif |
---|
609 | case CLP_PARAM_DBL_ZEROTOLERANCE: |
---|
610 | value = model->getSmallElementValue(); |
---|
611 | break; |
---|
612 | case CLP_PARAM_DBL_DUALBOUND: |
---|
613 | value = model->dualBound(); |
---|
614 | break; |
---|
615 | case CLP_PARAM_DBL_PRIMALWEIGHT: |
---|
616 | value = model->infeasibilityCost(); |
---|
617 | break; |
---|
618 | #ifndef COIN_HAS_CBC |
---|
619 | case CLP_PARAM_DBL_TIMELIMIT: |
---|
620 | value = model->maximumSeconds(); |
---|
621 | break; |
---|
622 | #endif |
---|
623 | case CLP_PARAM_DBL_OBJSCALE: |
---|
624 | value = model->objectiveScale(); |
---|
625 | break; |
---|
626 | case CLP_PARAM_DBL_RHSSCALE: |
---|
627 | value = model->rhsScale(); |
---|
628 | break; |
---|
629 | case CLP_PARAM_DBL_PRESOLVETOLERANCE: |
---|
630 | value = model->presolveTolerance(); |
---|
631 | break; |
---|
632 | default: |
---|
633 | value = doubleValue_; |
---|
634 | break; |
---|
635 | } |
---|
636 | return value; |
---|
637 | } |
---|
638 | int CbcOrClpParam::setIntParameter(ClpSimplex *model, int value) |
---|
639 | { |
---|
640 | int returnCode; |
---|
641 | setIntParameterWithMessage(model, value, returnCode); |
---|
642 | if (doPrinting && strlen(printArray)) |
---|
643 | std::cout << printArray << std::endl; |
---|
644 | return returnCode; |
---|
645 | } |
---|
646 | // Sets int parameter and returns printable string and error code |
---|
647 | const char * |
---|
648 | CbcOrClpParam::setIntParameterWithMessage(ClpSimplex *model, int value, int &returnCode) |
---|
649 | { |
---|
650 | int oldValue = intValue_; |
---|
651 | if (value < lowerIntValue_ || value > upperIntValue_) { |
---|
652 | sprintf(printArray, "%d was provided for %s - valid range is %d to %d", |
---|
653 | value, name_.c_str(), lowerIntValue_, upperIntValue_); |
---|
654 | returnCode = 1; |
---|
655 | } else { |
---|
656 | intValue_ = value; |
---|
657 | sprintf(printArray, "%s was changed from %d to %d", |
---|
658 | name_.c_str(), oldValue, value); |
---|
659 | returnCode = 0; |
---|
660 | switch (type_) { |
---|
661 | case CLP_PARAM_INT_SOLVERLOGLEVEL: |
---|
662 | model->setLogLevel(value); |
---|
663 | if (value > 2) |
---|
664 | model->factorization()->messageLevel(8); |
---|
665 | else |
---|
666 | model->factorization()->messageLevel(0); |
---|
667 | break; |
---|
668 | case CLP_PARAM_INT_MAXFACTOR: |
---|
669 | model->factorization()->maximumPivots(value); |
---|
670 | break; |
---|
671 | case CLP_PARAM_INT_PERTVALUE: |
---|
672 | model->setPerturbation(value); |
---|
673 | break; |
---|
674 | case CLP_PARAM_INT_MAXITERATION: |
---|
675 | model->setMaximumIterations(value); |
---|
676 | break; |
---|
677 | case CLP_PARAM_INT_SPECIALOPTIONS: |
---|
678 | model->setSpecialOptions(value); |
---|
679 | break; |
---|
680 | case CLP_PARAM_INT_RANDOMSEED: { |
---|
681 | if (value == 0) { |
---|
682 | double time = fabs(CoinGetTimeOfDay()); |
---|
683 | while (time >= COIN_INT_MAX) |
---|
684 | time *= 0.5; |
---|
685 | value = static_cast< int >(time); |
---|
686 | sprintf(printArray, "using time of day %s was changed from %d to %d", |
---|
687 | name_.c_str(), oldValue, value); |
---|
688 | } |
---|
689 | model->setRandomSeed(value); |
---|
690 | } break; |
---|
691 | case CLP_PARAM_INT_MORESPECIALOPTIONS: |
---|
692 | model->setMoreSpecialOptions(value); |
---|
693 | break; |
---|
694 | case CLP_PARAM_INT_VECTOR_MODE: |
---|
695 | model->setVectorMode(value); |
---|
696 | break; |
---|
697 | #ifndef COIN_HAS_CBC |
---|
698 | #ifdef CBC_THREAD |
---|
699 | case CBC_PARAM_INT_THREADS: |
---|
700 | model->setNumberThreads(value); |
---|
701 | break; |
---|
702 | #endif |
---|
703 | #endif |
---|
704 | default: |
---|
705 | break; |
---|
706 | } |
---|
707 | } |
---|
708 | return printArray; |
---|
709 | } |
---|
710 | int CbcOrClpParam::intParameter(ClpSimplex *model) const |
---|
711 | { |
---|
712 | int value; |
---|
713 | switch (type_) { |
---|
714 | #ifndef COIN_HAS_CBC |
---|
715 | case CLP_PARAM_INT_SOLVERLOGLEVEL: |
---|
716 | value = model->logLevel(); |
---|
717 | break; |
---|
718 | #endif |
---|
719 | case CLP_PARAM_INT_MAXFACTOR: |
---|
720 | value = model->factorization()->maximumPivots(); |
---|
721 | break; |
---|
722 | break; |
---|
723 | case CLP_PARAM_INT_PERTVALUE: |
---|
724 | value = model->perturbation(); |
---|
725 | break; |
---|
726 | case CLP_PARAM_INT_MAXITERATION: |
---|
727 | value = model->maximumIterations(); |
---|
728 | break; |
---|
729 | case CLP_PARAM_INT_SPECIALOPTIONS: |
---|
730 | value = model->specialOptions(); |
---|
731 | break; |
---|
732 | case CLP_PARAM_INT_RANDOMSEED: |
---|
733 | value = model->randomNumberGenerator()->getSeed(); |
---|
734 | break; |
---|
735 | case CLP_PARAM_INT_MORESPECIALOPTIONS: |
---|
736 | value = model->moreSpecialOptions(); |
---|
737 | break; |
---|
738 | case CLP_PARAM_INT_VECTOR_MODE: |
---|
739 | value = model->vectorMode(); |
---|
740 | break; |
---|
741 | #ifndef COIN_HAS_CBC |
---|
742 | #ifdef CBC_THREAD |
---|
743 | case CBC_PARAM_INT_THREADS: |
---|
744 | value = model->numberThreads(); |
---|
745 | break; |
---|
746 | #endif |
---|
747 | #endif |
---|
748 | default: |
---|
749 | value = intValue_; |
---|
750 | break; |
---|
751 | } |
---|
752 | return value; |
---|
753 | } |
---|
754 | #endif |
---|
755 | int CbcOrClpParam::checkDoubleParameter(double value) const |
---|
756 | { |
---|
757 | if (value < lowerDoubleValue_ || value > upperDoubleValue_) { |
---|
758 | std::cout << value << " was provided for " << name_ << " - valid range is " << lowerDoubleValue_ << " to " << upperDoubleValue_ << std::endl; |
---|
759 | return 1; |
---|
760 | } else { |
---|
761 | return 0; |
---|
762 | } |
---|
763 | } |
---|
764 | #ifdef COIN_HAS_CBC |
---|
765 | double |
---|
766 | CbcOrClpParam::doubleParameter(OsiSolverInterface *model) const |
---|
767 | { |
---|
768 | double value = 0.0; |
---|
769 | switch (type_) { |
---|
770 | case CLP_PARAM_DBL_DUALTOLERANCE: |
---|
771 | model->getDblParam(OsiDualTolerance, value); |
---|
772 | break; |
---|
773 | case CLP_PARAM_DBL_PRIMALTOLERANCE: |
---|
774 | model->getDblParam(OsiPrimalTolerance, value); |
---|
775 | break; |
---|
776 | default: |
---|
777 | return doubleValue_; |
---|
778 | break; |
---|
779 | } |
---|
780 | return value; |
---|
781 | } |
---|
782 | int CbcOrClpParam::setIntParameter(OsiSolverInterface *model, int value) |
---|
783 | { |
---|
784 | int returnCode; |
---|
785 | setIntParameterWithMessage(model, value, returnCode); |
---|
786 | if (doPrinting && strlen(printArray)) |
---|
787 | std::cout << printArray << std::endl; |
---|
788 | return returnCode; |
---|
789 | } |
---|
790 | // Sets int parameter and returns printable string and error code |
---|
791 | const char * |
---|
792 | CbcOrClpParam::setIntParameterWithMessage(OsiSolverInterface *model, int value, int &returnCode) |
---|
793 | { |
---|
794 | if (value < lowerIntValue_ || value > upperIntValue_) { |
---|
795 | sprintf(printArray, "%d was provided for %s - valid range is %d to %d", |
---|
796 | value, name_.c_str(), lowerIntValue_, upperIntValue_); |
---|
797 | returnCode = 1; |
---|
798 | } else { |
---|
799 | int oldValue = intValue_; |
---|
800 | intValue_ = oldValue; |
---|
801 | switch (type_) { |
---|
802 | case CLP_PARAM_INT_SOLVERLOGLEVEL: |
---|
803 | model->messageHandler()->setLogLevel(value); |
---|
804 | break; |
---|
805 | default: |
---|
806 | break; |
---|
807 | } |
---|
808 | sprintf(printArray, "%s was changed from %d to %d", |
---|
809 | name_.c_str(), oldValue, value); |
---|
810 | returnCode = 0; |
---|
811 | } |
---|
812 | return printArray; |
---|
813 | } |
---|
814 | int CbcOrClpParam::intParameter(OsiSolverInterface *model) const |
---|
815 | { |
---|
816 | int value = 0; |
---|
817 | switch (type_) { |
---|
818 | case CLP_PARAM_INT_SOLVERLOGLEVEL: |
---|
819 | value = model->messageHandler()->logLevel(); |
---|
820 | break; |
---|
821 | default: |
---|
822 | value = intValue_; |
---|
823 | break; |
---|
824 | } |
---|
825 | return value; |
---|
826 | } |
---|
827 | int CbcOrClpParam::setDoubleParameter(CbcModel &model, double value) |
---|
828 | { |
---|
829 | int returnCode = 0; |
---|
830 | setDoubleParameterWithMessage(model, value, returnCode); |
---|
831 | if (doPrinting && strlen(printArray)) |
---|
832 | std::cout << printArray << std::endl; |
---|
833 | return returnCode; |
---|
834 | } |
---|
835 | // Sets double parameter and returns printable string and error code |
---|
836 | const char * |
---|
837 | CbcOrClpParam::setDoubleParameterWithMessage(CbcModel &model, double value, int &returnCode) |
---|
838 | { |
---|
839 | if (value < lowerDoubleValue_ || value > upperDoubleValue_) { |
---|
840 | sprintf(printArray, "%g was provided for %s - valid range is %g to %g", |
---|
841 | value, name_.c_str(), lowerDoubleValue_, upperDoubleValue_); |
---|
842 | returnCode = 1; |
---|
843 | } else { |
---|
844 | double oldValue = doubleValue_; |
---|
845 | doubleValue_ = value; |
---|
846 | switch (type_) { |
---|
847 | case CBC_PARAM_DBL_INFEASIBILITYWEIGHT: |
---|
848 | oldValue = model.getDblParam(CbcModel::CbcInfeasibilityWeight); |
---|
849 | model.setDblParam(CbcModel::CbcInfeasibilityWeight, value); |
---|
850 | break; |
---|
851 | case CBC_PARAM_DBL_INTEGERTOLERANCE: |
---|
852 | oldValue = model.getDblParam(CbcModel::CbcIntegerTolerance); |
---|
853 | model.setDblParam(CbcModel::CbcIntegerTolerance, value); |
---|
854 | break; |
---|
855 | case CBC_PARAM_DBL_INCREMENT: |
---|
856 | oldValue = model.getDblParam(CbcModel::CbcCutoffIncrement); |
---|
857 | model.setDblParam(CbcModel::CbcCutoffIncrement, value); |
---|
858 | case CBC_PARAM_DBL_ALLOWABLEGAP: |
---|
859 | oldValue = model.getDblParam(CbcModel::CbcAllowableGap); |
---|
860 | model.setDblParam(CbcModel::CbcAllowableGap, value); |
---|
861 | break; |
---|
862 | case CBC_PARAM_DBL_GAPRATIO: |
---|
863 | oldValue = model.getDblParam(CbcModel::CbcAllowableFractionGap); |
---|
864 | model.setDblParam(CbcModel::CbcAllowableFractionGap, value); |
---|
865 | break; |
---|
866 | case CBC_PARAM_DBL_CUTOFF: |
---|
867 | oldValue = model.getCutoff(); |
---|
868 | model.setCutoff(value); |
---|
869 | break; |
---|
870 | case CBC_PARAM_DBL_TIMELIMIT_BAB: |
---|
871 | oldValue = model.getDblParam(CbcModel::CbcMaximumSeconds); |
---|
872 | { |
---|
873 | //OsiClpSolverInterface * clpSolver = dynamic_cast< OsiClpSolverInterface*> (model.solver()); |
---|
874 | //ClpSimplex * lpSolver = clpSolver->getModelPtr(); |
---|
875 | //lpSolver->setMaximumSeconds(value); |
---|
876 | model.setDblParam(CbcModel::CbcMaximumSeconds, value); |
---|
877 | } |
---|
878 | break; |
---|
879 | case CLP_PARAM_DBL_DUALTOLERANCE: |
---|
880 | case CLP_PARAM_DBL_PRIMALTOLERANCE: |
---|
881 | setDoubleParameter(model.solver(), value); |
---|
882 | return 0; // to avoid message |
---|
883 | default: |
---|
884 | break; |
---|
885 | } |
---|
886 | sprintf(printArray, "%s was changed from %g to %g", |
---|
887 | name_.c_str(), oldValue, value); |
---|
888 | returnCode = 0; |
---|
889 | } |
---|
890 | return printArray; |
---|
891 | } |
---|
892 | double |
---|
893 | CbcOrClpParam::doubleParameter(CbcModel &model) const |
---|
894 | { |
---|
895 | double value; |
---|
896 | switch (type_) { |
---|
897 | case CBC_PARAM_DBL_INFEASIBILITYWEIGHT: |
---|
898 | value = model.getDblParam(CbcModel::CbcInfeasibilityWeight); |
---|
899 | break; |
---|
900 | case CBC_PARAM_DBL_INTEGERTOLERANCE: |
---|
901 | value = model.getDblParam(CbcModel::CbcIntegerTolerance); |
---|
902 | break; |
---|
903 | case CBC_PARAM_DBL_INCREMENT: |
---|
904 | value = model.getDblParam(CbcModel::CbcCutoffIncrement); |
---|
905 | break; |
---|
906 | case CBC_PARAM_DBL_ALLOWABLEGAP: |
---|
907 | value = model.getDblParam(CbcModel::CbcAllowableGap); |
---|
908 | break; |
---|
909 | case CBC_PARAM_DBL_GAPRATIO: |
---|
910 | value = model.getDblParam(CbcModel::CbcAllowableFractionGap); |
---|
911 | break; |
---|
912 | case CBC_PARAM_DBL_CUTOFF: |
---|
913 | value = model.getCutoff(); |
---|
914 | break; |
---|
915 | case CBC_PARAM_DBL_TIMELIMIT_BAB: |
---|
916 | value = model.getDblParam(CbcModel::CbcMaximumSeconds); |
---|
917 | break; |
---|
918 | case CLP_PARAM_DBL_DUALTOLERANCE: |
---|
919 | case CLP_PARAM_DBL_PRIMALTOLERANCE: |
---|
920 | value = doubleParameter(model.solver()); |
---|
921 | break; |
---|
922 | default: |
---|
923 | value = doubleValue_; |
---|
924 | break; |
---|
925 | } |
---|
926 | return value; |
---|
927 | } |
---|
928 | int CbcOrClpParam::setIntParameter(CbcModel &model, int value) |
---|
929 | { |
---|
930 | int returnCode; |
---|
931 | setIntParameterWithMessage(model, value, returnCode); |
---|
932 | if (doPrinting && strlen(printArray)) |
---|
933 | std::cout << printArray << std::endl; |
---|
934 | return returnCode; |
---|
935 | } |
---|
936 | // Sets int parameter and returns printable string and error code |
---|
937 | const char * |
---|
938 | CbcOrClpParam::setIntParameterWithMessage(CbcModel &model, int value, int &returnCode) |
---|
939 | { |
---|
940 | if (value < lowerIntValue_ || value > upperIntValue_) { |
---|
941 | sprintf(printArray, "%d was provided for %s - valid range is %d to %d", |
---|
942 | value, name_.c_str(), lowerIntValue_, upperIntValue_); |
---|
943 | returnCode = 1; |
---|
944 | } else { |
---|
945 | printArray[0] = '\0'; |
---|
946 | if (value == intValue_) |
---|
947 | return printArray; |
---|
948 | int oldValue = intValue_; |
---|
949 | intValue_ = value; |
---|
950 | switch (type_) { |
---|
951 | case CLP_PARAM_INT_LOGLEVEL: |
---|
952 | oldValue = model.messageHandler()->logLevel(); |
---|
953 | model.messageHandler()->setLogLevel(CoinAbs(value)); |
---|
954 | break; |
---|
955 | case CLP_PARAM_INT_SOLVERLOGLEVEL: |
---|
956 | oldValue = model.solver()->messageHandler()->logLevel(); |
---|
957 | model.solver()->messageHandler()->setLogLevel(value); |
---|
958 | break; |
---|
959 | case CBC_PARAM_INT_MAXNODES: |
---|
960 | oldValue = model.getIntParam(CbcModel::CbcMaxNumNode); |
---|
961 | model.setIntParam(CbcModel::CbcMaxNumNode, value); |
---|
962 | break; |
---|
963 | case CBC_PARAM_INT_MAXSOLS: |
---|
964 | oldValue = model.getIntParam(CbcModel::CbcMaxNumSol); |
---|
965 | model.setIntParam(CbcModel::CbcMaxNumSol, value); |
---|
966 | break; |
---|
967 | case CBC_PARAM_INT_MAXSAVEDSOLS: |
---|
968 | oldValue = model.maximumSavedSolutions(); |
---|
969 | model.setMaximumSavedSolutions(value); |
---|
970 | break; |
---|
971 | case CBC_PARAM_INT_STRONGBRANCHING: |
---|
972 | oldValue = model.numberStrong(); |
---|
973 | model.setNumberStrong(value); |
---|
974 | break; |
---|
975 | case CBC_PARAM_INT_NUMBERBEFORE: |
---|
976 | oldValue = model.numberBeforeTrust(); |
---|
977 | model.setNumberBeforeTrust(value); |
---|
978 | break; |
---|
979 | case CBC_PARAM_INT_NUMBERANALYZE: |
---|
980 | oldValue = model.numberAnalyzeIterations(); |
---|
981 | model.setNumberAnalyzeIterations(value); |
---|
982 | break; |
---|
983 | case CBC_PARAM_INT_CUTPASSINTREE: |
---|
984 | oldValue = model.getMaximumCutPasses(); |
---|
985 | model.setMaximumCutPasses(value); |
---|
986 | break; |
---|
987 | case CBC_PARAM_INT_CUTPASS: |
---|
988 | oldValue = model.getMaximumCutPassesAtRoot(); |
---|
989 | model.setMaximumCutPassesAtRoot(value); |
---|
990 | break; |
---|
991 | #ifdef COIN_HAS_CBC |
---|
992 | #ifdef CBC_THREAD |
---|
993 | case CBC_PARAM_INT_THREADS: |
---|
994 | oldValue = model.getNumberThreads(); |
---|
995 | model.setNumberThreads(value); |
---|
996 | break; |
---|
997 | #endif |
---|
998 | case CBC_PARAM_INT_RANDOMSEED: |
---|
999 | oldValue = model.getRandomSeed(); |
---|
1000 | model.setRandomSeed(value); |
---|
1001 | break; |
---|
1002 | #endif |
---|
1003 | default: |
---|
1004 | break; |
---|
1005 | } |
---|
1006 | sprintf(printArray, "%s was changed from %d to %d", |
---|
1007 | name_.c_str(), oldValue, value); |
---|
1008 | returnCode = 0; |
---|
1009 | } |
---|
1010 | return printArray; |
---|
1011 | } |
---|
1012 | int CbcOrClpParam::intParameter(CbcModel &model) const |
---|
1013 | { |
---|
1014 | int value; |
---|
1015 | switch (type_) { |
---|
1016 | case CLP_PARAM_INT_LOGLEVEL: |
---|
1017 | value = model.messageHandler()->logLevel(); |
---|
1018 | break; |
---|
1019 | case CLP_PARAM_INT_SOLVERLOGLEVEL: |
---|
1020 | value = model.solver()->messageHandler()->logLevel(); |
---|
1021 | break; |
---|
1022 | case CBC_PARAM_INT_MAXNODES: |
---|
1023 | value = model.getIntParam(CbcModel::CbcMaxNumNode); |
---|
1024 | break; |
---|
1025 | case CBC_PARAM_INT_MAXSOLS: |
---|
1026 | value = model.getIntParam(CbcModel::CbcMaxNumSol); |
---|
1027 | break; |
---|
1028 | case CBC_PARAM_INT_MAXSAVEDSOLS: |
---|
1029 | value = model.maximumSavedSolutions(); |
---|
1030 | break; |
---|
1031 | case CBC_PARAM_INT_STRONGBRANCHING: |
---|
1032 | value = model.numberStrong(); |
---|
1033 | break; |
---|
1034 | case CBC_PARAM_INT_NUMBERBEFORE: |
---|
1035 | value = model.numberBeforeTrust(); |
---|
1036 | break; |
---|
1037 | case CBC_PARAM_INT_NUMBERANALYZE: |
---|
1038 | value = model.numberAnalyzeIterations(); |
---|
1039 | break; |
---|
1040 | case CBC_PARAM_INT_CUTPASSINTREE: |
---|
1041 | value = model.getMaximumCutPasses(); |
---|
1042 | break; |
---|
1043 | case CBC_PARAM_INT_CUTPASS: |
---|
1044 | value = model.getMaximumCutPassesAtRoot(); |
---|
1045 | break; |
---|
1046 | #ifdef COIN_HAS_CBC |
---|
1047 | #ifdef CBC_THREAD |
---|
1048 | case CBC_PARAM_INT_THREADS: |
---|
1049 | value = model.getNumberThreads(); |
---|
1050 | #endif |
---|
1051 | case CBC_PARAM_INT_RANDOMSEED: |
---|
1052 | value = model.getRandomSeed(); |
---|
1053 | break; |
---|
1054 | #endif |
---|
1055 | default: |
---|
1056 | value = intValue_; |
---|
1057 | break; |
---|
1058 | } |
---|
1059 | return value; |
---|
1060 | } |
---|
1061 | #endif |
---|
1062 | // Sets current parameter option using string |
---|
1063 | void CbcOrClpParam::setCurrentOption(const std::string value) |
---|
1064 | { |
---|
1065 | int action = parameterOption(value); |
---|
1066 | if (action >= 0) |
---|
1067 | currentKeyWord_ = action; |
---|
1068 | #if FLUSH_PRINT_BUFFER > 2 |
---|
1069 | if (name_ == "bufferedMode") |
---|
1070 | coinFlushBufferFlag = action; |
---|
1071 | #endif |
---|
1072 | } |
---|
1073 | // Sets current parameter option |
---|
1074 | void CbcOrClpParam::setCurrentOption(int value, bool printIt) |
---|
1075 | { |
---|
1076 | if (printIt && value != currentKeyWord_) |
---|
1077 | std::cout << "Option for " << name_ << " changed from " |
---|
1078 | << definedKeyWords_[currentKeyWord_] << " to " |
---|
1079 | << definedKeyWords_[value] << std::endl; |
---|
1080 | |
---|
1081 | #if FLUSH_PRINT_BUFFER > 2 |
---|
1082 | if (name_ == "bufferedMode") |
---|
1083 | coinFlushBufferFlag = value; |
---|
1084 | #endif |
---|
1085 | currentKeyWord_ = value; |
---|
1086 | } |
---|
1087 | // Sets current parameter option and returns printable string |
---|
1088 | const char * |
---|
1089 | CbcOrClpParam::setCurrentOptionWithMessage(int value) |
---|
1090 | { |
---|
1091 | if (value != currentKeyWord_) { |
---|
1092 | char current[100]; |
---|
1093 | char newString[100]; |
---|
1094 | if (currentKeyWord_ >= 0 && (fakeKeyWord_ <= 0 || currentKeyWord_ < fakeKeyWord_)) |
---|
1095 | strcpy(current, definedKeyWords_[currentKeyWord_].c_str()); |
---|
1096 | else if (currentKeyWord_ < 0) |
---|
1097 | sprintf(current, "minus%d", -currentKeyWord_ - 1000); |
---|
1098 | else |
---|
1099 | sprintf(current, "plus%d", currentKeyWord_ - 1000); |
---|
1100 | if (value >= 0 && (fakeKeyWord_ <= 0 || value < fakeKeyWord_)) |
---|
1101 | strcpy(newString, definedKeyWords_[value].c_str()); |
---|
1102 | else if (value < 0) |
---|
1103 | sprintf(newString, "minus%d", -value - 1000); |
---|
1104 | else |
---|
1105 | sprintf(newString, "plus%d", value - 1000); |
---|
1106 | sprintf(printArray, "Option for %s changed from %s to %s", |
---|
1107 | name_.c_str(), current, newString); |
---|
1108 | #if FLUSH_PRINT_BUFFER > 2 |
---|
1109 | if (name_ == "bufferedMode") |
---|
1110 | coinFlushBufferFlag = value; |
---|
1111 | #endif |
---|
1112 | currentKeyWord_ = value; |
---|
1113 | } else { |
---|
1114 | printArray[0] = '\0'; |
---|
1115 | } |
---|
1116 | return printArray; |
---|
1117 | } |
---|
1118 | // Sets current parameter option using string with message |
---|
1119 | const char * |
---|
1120 | CbcOrClpParam::setCurrentOptionWithMessage(const std::string value) |
---|
1121 | { |
---|
1122 | int action = parameterOption(value); |
---|
1123 | char current[100]; |
---|
1124 | printArray[0] = '\0'; |
---|
1125 | if (action >= 0) { |
---|
1126 | #if FLUSH_PRINT_BUFFER > 2 |
---|
1127 | if (name_ == "bufferedMode") |
---|
1128 | coinFlushBufferFlag = action; |
---|
1129 | #endif |
---|
1130 | if (action == currentKeyWord_) |
---|
1131 | return NULL; |
---|
1132 | if (currentKeyWord_ >= 0 && (fakeKeyWord_ <= 0 || currentKeyWord_ < fakeKeyWord_)) |
---|
1133 | strcpy(current, definedKeyWords_[currentKeyWord_].c_str()); |
---|
1134 | else if (currentKeyWord_ < 0) |
---|
1135 | sprintf(current, "minus%d", -currentKeyWord_ - 1000); |
---|
1136 | else |
---|
1137 | sprintf(current, "plus%d", currentKeyWord_ - 1000); |
---|
1138 | sprintf(printArray, "Option for %s changed from %s to %s", |
---|
1139 | name_.c_str(), current, value.c_str()); |
---|
1140 | currentKeyWord_ = action; |
---|
1141 | } else { |
---|
1142 | sprintf(printArray, "Option for %s given illegal value %s", |
---|
1143 | name_.c_str(), value.c_str()); |
---|
1144 | } |
---|
1145 | return printArray; |
---|
1146 | } |
---|
1147 | void CbcOrClpParam::setIntValue(int value) |
---|
1148 | { |
---|
1149 | if (value < lowerIntValue_ || value > upperIntValue_) { |
---|
1150 | std::cout << value << " was provided for " << name_ << " - valid range is " << lowerIntValue_ << " to " << upperIntValue_ << std::endl; |
---|
1151 | } else { |
---|
1152 | intValue_ = value; |
---|
1153 | } |
---|
1154 | } |
---|
1155 | const char * |
---|
1156 | CbcOrClpParam::setIntValueWithMessage(int value) |
---|
1157 | { |
---|
1158 | printArray[0] = '\0'; |
---|
1159 | if (value < lowerIntValue_ || value > upperIntValue_) { |
---|
1160 | sprintf(printArray, "%d was provided for %s - valid range is %d to %d", |
---|
1161 | value, name_.c_str(), lowerIntValue_, upperIntValue_); |
---|
1162 | } else { |
---|
1163 | if (value == intValue_) |
---|
1164 | return NULL; |
---|
1165 | sprintf(printArray, "%s was changed from %d to %d", |
---|
1166 | name_.c_str(), intValue_, value); |
---|
1167 | intValue_ = value; |
---|
1168 | } |
---|
1169 | return printArray; |
---|
1170 | } |
---|
1171 | void CbcOrClpParam::setDoubleValue(double value) |
---|
1172 | { |
---|
1173 | if (value < lowerDoubleValue_ || value > upperDoubleValue_) { |
---|
1174 | std::cout << value << " was provided for " << name_ << " - valid range is " << lowerDoubleValue_ << " to " << upperDoubleValue_ << std::endl; |
---|
1175 | } else { |
---|
1176 | doubleValue_ = value; |
---|
1177 | } |
---|
1178 | } |
---|
1179 | const char * |
---|
1180 | CbcOrClpParam::setDoubleValueWithMessage(double value) |
---|
1181 | { |
---|
1182 | printArray[0] = '\0'; |
---|
1183 | if (value < lowerDoubleValue_ || value > upperDoubleValue_) { |
---|
1184 | sprintf(printArray, "%g was provided for %s - valid range is %g to %g", |
---|
1185 | value, name_.c_str(), lowerDoubleValue_, upperDoubleValue_); |
---|
1186 | } else { |
---|
1187 | if (value == doubleValue_) |
---|
1188 | return NULL; |
---|
1189 | sprintf(printArray, "%s was changed from %g to %g", |
---|
1190 | name_.c_str(), doubleValue_, value); |
---|
1191 | doubleValue_ = value; |
---|
1192 | } |
---|
1193 | return printArray; |
---|
1194 | } |
---|
1195 | void CbcOrClpParam::setStringValue(std::string value) |
---|
1196 | { |
---|
1197 | stringValue_ = value; |
---|
1198 | } |
---|
1199 | static char line[1000]; |
---|
1200 | static char *where = NULL; |
---|
1201 | extern int CbcOrClpRead_mode; |
---|
1202 | int CbcOrClpEnvironmentIndex = -1; |
---|
1203 | // Alternative to environment |
---|
1204 | char *alternativeEnvironment = NULL; |
---|
1205 | static size_t fillEnv() |
---|
1206 | { |
---|
1207 | #if defined(_MSC_VER) || defined(__MSVCRT__) |
---|
1208 | return 0; |
---|
1209 | #else |
---|
1210 | // Don't think it will work on Windows |
---|
1211 | char *environ; |
---|
1212 | if (!alternativeEnvironment) |
---|
1213 | environ = getenv("CBC_CLP_ENVIRONMENT"); |
---|
1214 | else |
---|
1215 | environ = alternativeEnvironment; |
---|
1216 | size_t length = 0; |
---|
1217 | if (environ) { |
---|
1218 | length = strlen(environ); |
---|
1219 | if (CbcOrClpEnvironmentIndex < static_cast< int >(length)) { |
---|
1220 | // find next non blank |
---|
1221 | char *whereEnv = environ + CbcOrClpEnvironmentIndex; |
---|
1222 | // munch white space |
---|
1223 | while (*whereEnv == ' ' || *whereEnv == '\t' || *whereEnv < ' ') |
---|
1224 | whereEnv++; |
---|
1225 | // copy |
---|
1226 | char *put = line; |
---|
1227 | while (*whereEnv != '\0') { |
---|
1228 | if (*whereEnv == ' ' || *whereEnv == '\t' || *whereEnv < ' ') { |
---|
1229 | break; |
---|
1230 | } |
---|
1231 | *put = *whereEnv; |
---|
1232 | put++; |
---|
1233 | assert(put - line < 1000); |
---|
1234 | whereEnv++; |
---|
1235 | } |
---|
1236 | CbcOrClpEnvironmentIndex = static_cast< int >(whereEnv - environ); |
---|
1237 | *put = '\0'; |
---|
1238 | length = strlen(line); |
---|
1239 | } else { |
---|
1240 | length = 0; |
---|
1241 | } |
---|
1242 | } |
---|
1243 | if (!length) { |
---|
1244 | CbcOrClpEnvironmentIndex = -1; |
---|
1245 | if (alternativeEnvironment) { |
---|
1246 | delete[] alternativeEnvironment; |
---|
1247 | alternativeEnvironment = NULL; |
---|
1248 | } |
---|
1249 | } |
---|
1250 | return length; |
---|
1251 | #endif |
---|
1252 | } |
---|
1253 | extern FILE *CbcOrClpReadCommand; |
---|
1254 | // Simple read stuff |
---|
1255 | std::string |
---|
1256 | CoinReadNextField() |
---|
1257 | { |
---|
1258 | std::string field; |
---|
1259 | if (!where) { |
---|
1260 | // need new line |
---|
1261 | #ifdef COIN_HAS_READLINE |
---|
1262 | if (CbcOrClpReadCommand == stdin) { |
---|
1263 | // Get a line from the user. |
---|
1264 | where = readline(coin_prompt); |
---|
1265 | |
---|
1266 | // If the line has any text in it, save it on the history. |
---|
1267 | if (where) { |
---|
1268 | if (*where) |
---|
1269 | add_history(where); |
---|
1270 | strcpy(line, where); |
---|
1271 | free(where); |
---|
1272 | } |
---|
1273 | } else { |
---|
1274 | where = fgets(line, 1000, CbcOrClpReadCommand); |
---|
1275 | } |
---|
1276 | #else |
---|
1277 | if (CbcOrClpReadCommand == stdin) { |
---|
1278 | fputs(coin_prompt, stdout); |
---|
1279 | fflush(stdout); |
---|
1280 | } |
---|
1281 | where = fgets(line, 1000, CbcOrClpReadCommand); |
---|
1282 | #endif |
---|
1283 | if (!where) |
---|
1284 | return field; // EOF |
---|
1285 | where = line; |
---|
1286 | // clean image |
---|
1287 | char *lastNonBlank = line - 1; |
---|
1288 | while (*where != '\0') { |
---|
1289 | if (*where != '\t' && *where < ' ') { |
---|
1290 | break; |
---|
1291 | } else if (*where != '\t' && *where != ' ') { |
---|
1292 | lastNonBlank = where; |
---|
1293 | } |
---|
1294 | where++; |
---|
1295 | } |
---|
1296 | where = line; |
---|
1297 | *(lastNonBlank + 1) = '\0'; |
---|
1298 | } |
---|
1299 | // munch white space |
---|
1300 | while (*where == ' ' || *where == '\t') |
---|
1301 | where++; |
---|
1302 | char *saveWhere = where; |
---|
1303 | while (*where != ' ' && *where != '\t' && *where != '\0') |
---|
1304 | where++; |
---|
1305 | if (where != saveWhere) { |
---|
1306 | char save = *where; |
---|
1307 | *where = '\0'; |
---|
1308 | //convert to string |
---|
1309 | field = saveWhere; |
---|
1310 | *where = save; |
---|
1311 | } else { |
---|
1312 | where = NULL; |
---|
1313 | field = "EOL"; |
---|
1314 | } |
---|
1315 | return field; |
---|
1316 | } |
---|
1317 | |
---|
1318 | std::string |
---|
1319 | CoinReadGetCommand(int argc, const char *argv[]) |
---|
1320 | { |
---|
1321 | std::string field = "EOL"; |
---|
1322 | // say no = |
---|
1323 | afterEquals = ""; |
---|
1324 | while (field == "EOL") { |
---|
1325 | if (CbcOrClpRead_mode > 0) { |
---|
1326 | if ((CbcOrClpRead_mode < argc && argv[CbcOrClpRead_mode]) || CbcOrClpEnvironmentIndex >= 0) { |
---|
1327 | if (CbcOrClpEnvironmentIndex < 0) { |
---|
1328 | field = argv[CbcOrClpRead_mode++]; |
---|
1329 | } else { |
---|
1330 | if (fillEnv()) { |
---|
1331 | field = line; |
---|
1332 | } else { |
---|
1333 | // not there |
---|
1334 | continue; |
---|
1335 | } |
---|
1336 | } |
---|
1337 | if (field == "-") { |
---|
1338 | std::cout << "Switching to line mode" << std::endl; |
---|
1339 | CbcOrClpRead_mode = -1; |
---|
1340 | field = CoinReadNextField(); |
---|
1341 | } else if (field[0] != '-') { |
---|
1342 | if (CbcOrClpRead_mode != 2) { |
---|
1343 | // now allow std::cout<<"skipping non-command "<<field<<std::endl; |
---|
1344 | // field="EOL"; // skip |
---|
1345 | } else if (CbcOrClpEnvironmentIndex < 0) { |
---|
1346 | // special dispensation - taken as -import name |
---|
1347 | CbcOrClpRead_mode--; |
---|
1348 | field = "import"; |
---|
1349 | } |
---|
1350 | } else { |
---|
1351 | if (field != "--") { |
---|
1352 | // take off - |
---|
1353 | field = field.substr(1); |
---|
1354 | } else { |
---|
1355 | // special dispensation - taken as -import -- |
---|
1356 | CbcOrClpRead_mode--; |
---|
1357 | field = "import"; |
---|
1358 | } |
---|
1359 | } |
---|
1360 | } else { |
---|
1361 | field = ""; |
---|
1362 | } |
---|
1363 | } else { |
---|
1364 | field = CoinReadNextField(); |
---|
1365 | } |
---|
1366 | } |
---|
1367 | // if = then modify and save |
---|
1368 | std::string::size_type found = field.find('='); |
---|
1369 | if (found != std::string::npos) { |
---|
1370 | afterEquals = field.substr(found + 1); |
---|
1371 | field = field.substr(0, found); |
---|
1372 | } |
---|
1373 | //std::cout<<field<<std::endl; |
---|
1374 | return field; |
---|
1375 | } |
---|
1376 | std::string |
---|
1377 | CoinReadGetString(int argc, const char *argv[]) |
---|
1378 | { |
---|
1379 | std::string field = "EOL"; |
---|
1380 | if (afterEquals == "") { |
---|
1381 | if (CbcOrClpRead_mode > 0) { |
---|
1382 | if (CbcOrClpRead_mode < argc || CbcOrClpEnvironmentIndex >= 0) { |
---|
1383 | if (CbcOrClpEnvironmentIndex < 0) { |
---|
1384 | if (argv[CbcOrClpRead_mode][0] != '-') { |
---|
1385 | field = argv[CbcOrClpRead_mode++]; |
---|
1386 | } else if (!strcmp(argv[CbcOrClpRead_mode], "--")) { |
---|
1387 | CbcOrClpRead_mode++; |
---|
1388 | // -- means import from stdin |
---|
1389 | field = "-"; |
---|
1390 | } |
---|
1391 | } else { |
---|
1392 | fillEnv(); |
---|
1393 | field = line; |
---|
1394 | } |
---|
1395 | } |
---|
1396 | } else { |
---|
1397 | field = CoinReadNextField(); |
---|
1398 | } |
---|
1399 | } else { |
---|
1400 | field = afterEquals; |
---|
1401 | afterEquals = ""; |
---|
1402 | } |
---|
1403 | //std::cout<<field<<std::endl; |
---|
1404 | return field; |
---|
1405 | } |
---|
1406 | // valid 0 - okay, 1 bad, 2 not there |
---|
1407 | int CoinReadGetIntField(int argc, const char *argv[], int *valid) |
---|
1408 | { |
---|
1409 | std::string field = "EOL"; |
---|
1410 | if (afterEquals == "") { |
---|
1411 | if (CbcOrClpRead_mode > 0) { |
---|
1412 | if (CbcOrClpRead_mode < argc || CbcOrClpEnvironmentIndex >= 0) { |
---|
1413 | if (CbcOrClpEnvironmentIndex < 0) { |
---|
1414 | // may be negative value so do not check for - |
---|
1415 | field = argv[CbcOrClpRead_mode++]; |
---|
1416 | } else { |
---|
1417 | fillEnv(); |
---|
1418 | field = line; |
---|
1419 | } |
---|
1420 | } |
---|
1421 | } else { |
---|
1422 | field = CoinReadNextField(); |
---|
1423 | } |
---|
1424 | } else { |
---|
1425 | field = afterEquals; |
---|
1426 | afterEquals = ""; |
---|
1427 | } |
---|
1428 | long int value = 0; |
---|
1429 | //std::cout<<field<<std::endl; |
---|
1430 | if (field != "EOL") { |
---|
1431 | const char *start = field.c_str(); |
---|
1432 | char *endPointer = NULL; |
---|
1433 | // check valid |
---|
1434 | value = strtol(start, &endPointer, 10); |
---|
1435 | if (*endPointer == '\0') { |
---|
1436 | *valid = 0; |
---|
1437 | } else { |
---|
1438 | *valid = 1; |
---|
1439 | std::cout << "String of " << field; |
---|
1440 | } |
---|
1441 | } else { |
---|
1442 | *valid = 2; |
---|
1443 | } |
---|
1444 | return static_cast< int >(value); |
---|
1445 | } |
---|
1446 | double |
---|
1447 | CoinReadGetDoubleField(int argc, const char *argv[], int *valid) |
---|
1448 | { |
---|
1449 | std::string field = "EOL"; |
---|
1450 | if (afterEquals == "") { |
---|
1451 | if (CbcOrClpRead_mode > 0) { |
---|
1452 | if (CbcOrClpRead_mode < argc || CbcOrClpEnvironmentIndex >= 0) { |
---|
1453 | if (CbcOrClpEnvironmentIndex < 0) { |
---|
1454 | // may be negative value so do not check for - |
---|
1455 | field = argv[CbcOrClpRead_mode++]; |
---|
1456 | } else { |
---|
1457 | fillEnv(); |
---|
1458 | field = line; |
---|
1459 | } |
---|
1460 | } |
---|
1461 | } else { |
---|
1462 | field = CoinReadNextField(); |
---|
1463 | } |
---|
1464 | } else { |
---|
1465 | field = afterEquals; |
---|
1466 | afterEquals = ""; |
---|
1467 | } |
---|
1468 | double value = 0.0; |
---|
1469 | //std::cout<<field<<std::endl; |
---|
1470 | if (field != "EOL") { |
---|
1471 | const char *start = field.c_str(); |
---|
1472 | char *endPointer = NULL; |
---|
1473 | // check valid |
---|
1474 | value = strtod(start, &endPointer); |
---|
1475 | if (*endPointer == '\0') { |
---|
1476 | *valid = 0; |
---|
1477 | } else { |
---|
1478 | *valid = 1; |
---|
1479 | std::cout << "String of " << field; |
---|
1480 | } |
---|
1481 | } else { |
---|
1482 | *valid = 2; |
---|
1483 | } |
---|
1484 | return value; |
---|
1485 | } |
---|
1486 | /* |
---|
1487 | Subroutine to establish the cbc parameter array. See the description of |
---|
1488 | class CbcOrClpParam for details. Pulled from C..Main() for clarity. |
---|
1489 | */ |
---|
1490 | void establishParams(std::vector< CbcOrClpParam > ¶meters) |
---|
1491 | { |
---|
1492 | parameters.clear(); |
---|
1493 | parameters.push_back(CbcOrClpParam("?", "For help", CBC_PARAM_GENERALQUERY, 7, 0)); |
---|
1494 | parameters.push_back(CbcOrClpParam("???", "For help", CBC_PARAM_FULLGENERALQUERY, 7, 0)); |
---|
1495 | parameters.push_back(CbcOrClpParam("-", "From stdin", CLP_PARAM_ACTION_STDIN, 3, 0)); |
---|
1496 | |
---|
1497 | // some help strings that repeat for many options |
---|
1498 | #define CUTS_LONGHELP \ |
---|
1499 | "Value 'on' enables the cut generator and CBC will try it in the branch and cut tree (see cutDepth on how to fine tune the behavior). " \ |
---|
1500 | "Value 'root' lets CBC run the cut generator generate only at the root node. " \ |
---|
1501 | "Value 'ifmove' lets CBC use the cut generator in the tree if it looks as if it is doing some good and moves the objective value. " \ |
---|
1502 | "Value 'forceon' turns on the cut generator and forces CBC to use it at every node." |
---|
1503 | #define HEURISTICS_LONGHELP \ |
---|
1504 | "Value 'on' means to use the heuristic in each node of the tree, i.e. after preprocessing. " \ |
---|
1505 | "Value 'before' means use the heuristic only if option doHeuristics is used. " \ |
---|
1506 | "Value 'both' means to use the heuristic if option doHeuristics is used and during solve." |
---|
1507 | |
---|
1508 | #if defined(ABC_INHERIT) || ABOCA_LITE |
---|
1509 | CbcOrClpParam paramAboca("abc", "Whether to visit Aboca", "off", CLP_PARAM_STR_ABCWANTED, 7, 0); |
---|
1510 | paramAboca.append("one"); |
---|
1511 | paramAboca.append("two"); |
---|
1512 | paramAboca.append("three"); |
---|
1513 | paramAboca.append("four"); |
---|
1514 | paramAboca.append("five"); |
---|
1515 | paramAboca.append("six"); |
---|
1516 | paramAboca.append("seven"); |
---|
1517 | paramAboca.append("eight"); |
---|
1518 | paramAboca.append("on"); |
---|
1519 | paramAboca.append("decide"); |
---|
1520 | paramAboca.setFakeKeyWord(10); |
---|
1521 | paramAboca.setLonghelp( |
---|
1522 | "Decide whether to use A Basic Optimization Code (Accelerated?) \ |
---|
1523 | and whether to try going parallel!"); |
---|
1524 | parameters.push_back(paramAboca); |
---|
1525 | #endif |
---|
1526 | { |
---|
1527 | CbcOrClpParam p("allC!ommands", "Whether to print less used commands", |
---|
1528 | "no", CLP_PARAM_STR_ALLCOMMANDS); |
---|
1529 | |
---|
1530 | p.append("more"); |
---|
1531 | p.append("all"); |
---|
1532 | p.setLonghelp( |
---|
1533 | "For the sake of your sanity, only the more useful and simple commands \ |
---|
1534 | are printed out on ?."); |
---|
1535 | parameters.push_back(p); |
---|
1536 | } |
---|
1537 | #ifdef COIN_HAS_CBC |
---|
1538 | { |
---|
1539 | CbcOrClpParam p("allow!ableGap", "Stop when gap between best possible and \ |
---|
1540 | best less than this", |
---|
1541 | 0.0, COIN_DBL_MAX, CBC_PARAM_DBL_ALLOWABLEGAP); |
---|
1542 | p.setDoubleValue(0.0); |
---|
1543 | p.setLonghelp( |
---|
1544 | "If the gap between best known solution and the best possible solution is less than this \ |
---|
1545 | value, then the search will be terminated. Also see ratioGap."); |
---|
1546 | parameters.push_back(p); |
---|
1547 | } |
---|
1548 | #endif |
---|
1549 | #ifdef COIN_HAS_CLP |
---|
1550 | { |
---|
1551 | CbcOrClpParam p("allS!lack", "Set basis back to all slack and reset solution", |
---|
1552 | CLP_PARAM_ACTION_ALLSLACK, 3); |
---|
1553 | p.setLonghelp( |
---|
1554 | "Mainly useful for tuning purposes. Normally the first dual or primal will be using an all slack \ |
---|
1555 | basis anyway."); |
---|
1556 | parameters.push_back(p); |
---|
1557 | } |
---|
1558 | #endif |
---|
1559 | #ifdef COIN_HAS_CBC |
---|
1560 | { |
---|
1561 | CbcOrClpParam p("artif!icialCost", "Costs >= this treated as artificials in feasibility pump", |
---|
1562 | 0.0, COIN_DBL_MAX, CBC_PARAM_DBL_ARTIFICIALCOST, 1); |
---|
1563 | p.setDoubleValue(0.0); |
---|
1564 | p.setLonghelp( |
---|
1565 | "A value of 0.0 means off. Otherwise, variables with costs >= this are treated as artificial variables and fixed to lower bound in feasibility pump."); |
---|
1566 | parameters.push_back(p); |
---|
1567 | } |
---|
1568 | #endif |
---|
1569 | #ifdef COIN_HAS_CLP |
---|
1570 | { |
---|
1571 | CbcOrClpParam p("auto!Scale", "Whether to scale objective, rhs and bounds of problem if they look odd", |
---|
1572 | "off", CLP_PARAM_STR_AUTOSCALE, 7, 0); |
---|
1573 | p.append("on"); |
---|
1574 | p.setLonghelp( |
---|
1575 | "If you think you may get odd objective values or large equality rows etc then\ |
---|
1576 | it may be worth setting this true. It is still experimental and you may prefer\ |
---|
1577 | to use objective!Scale and rhs!Scale."); |
---|
1578 | parameters.push_back(p); |
---|
1579 | } |
---|
1580 | { |
---|
1581 | CbcOrClpParam p("barr!ier", "Solve using primal dual predictor corrector algorithm", |
---|
1582 | CLP_PARAM_ACTION_BARRIER); |
---|
1583 | p.setLonghelp( |
---|
1584 | "This command solves the current model using the primal dual predictor \ |
---|
1585 | corrector algorithm. You may want to link in an alternative \ |
---|
1586 | ordering and factorization. It will also solve models \ |
---|
1587 | with quadratic objectives."); |
---|
1588 | parameters.push_back(p); |
---|
1589 | } |
---|
1590 | { |
---|
1591 | CbcOrClpParam p("basisI!n", "Import basis from bas file", |
---|
1592 | CLP_PARAM_ACTION_BASISIN, 3); |
---|
1593 | p.setLonghelp( |
---|
1594 | "This will read an MPS format basis file from the given file name. It will use the default\ |
---|
1595 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
1596 | is initialized to '', i.e. it must be set. If you have libz then it can read compressed\ |
---|
1597 | files 'xxxxxxxx.gz' or xxxxxxxx.bz2."); |
---|
1598 | parameters.push_back(p); |
---|
1599 | } |
---|
1600 | { |
---|
1601 | CbcOrClpParam p("basisO!ut", "Export basis as bas file", |
---|
1602 | CLP_PARAM_ACTION_BASISOUT); |
---|
1603 | |
---|
1604 | p.setLonghelp( |
---|
1605 | "This will write an MPS format basis file to the given file name. It will use the default\ |
---|
1606 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
1607 | is initialized to 'default.bas'."); |
---|
1608 | parameters.push_back(p); |
---|
1609 | } |
---|
1610 | { |
---|
1611 | CbcOrClpParam p("biasLU", "Whether factorization biased towards U", |
---|
1612 | "UU", CLP_PARAM_STR_BIASLU, 2, 0); |
---|
1613 | |
---|
1614 | p.append("UX"); |
---|
1615 | p.append("LX"); |
---|
1616 | p.append("LL"); |
---|
1617 | p.setCurrentOption("LX"); |
---|
1618 | parameters.push_back(p); |
---|
1619 | } |
---|
1620 | #endif |
---|
1621 | #ifdef COIN_HAS_CBC |
---|
1622 | { |
---|
1623 | CbcOrClpParam p("branch!AndCut", "Do Branch and Cut", |
---|
1624 | CBC_PARAM_ACTION_BAB); |
---|
1625 | p.setLonghelp( |
---|
1626 | "This does branch and cut. There are many parameters which can affect the performance. \ |
---|
1627 | First just try with default settings and look carefully at the log file. Did cuts help? Did they take too long? \ |
---|
1628 | Look at output to see which cuts were effective and then do some tuning. You will see that the \ |
---|
1629 | options for cuts are off, on, root and ifmove, forceon. Off is \ |
---|
1630 | obvious. " CUTS_LONGHELP " For probing, forceonbut just does fixing probing in tree - not strengthening etc. \ |
---|
1631 | If pre-processing reduced the size of the \ |
---|
1632 | problem or strengthened many coefficients then it is probably wise to leave it on. Switch off heuristics \ |
---|
1633 | which did not provide solutions. The other major area to look at is the search. Hopefully good solutions \ |
---|
1634 | were obtained fairly early in the search so the important point is to select the best variable to branch on. \ |
---|
1635 | See whether strong branching did a good job - or did it just take a lot of iterations. Adjust the strongBranching \ |
---|
1636 | and trustPseudoCosts parameters. If cuts did a good job, then you may wish to \ |
---|
1637 | have more rounds of cuts - see passC!uts and passT!ree."); |
---|
1638 | parameters.push_back(p); |
---|
1639 | } |
---|
1640 | #endif |
---|
1641 | { |
---|
1642 | CbcOrClpParam p("bscale", "Whether to scale in barrier (and ordering speed)", |
---|
1643 | "off", CLP_PARAM_STR_BARRIERSCALE, 7, 0); |
---|
1644 | p.append("on"); |
---|
1645 | p.append("off1"); |
---|
1646 | p.append("on1"); |
---|
1647 | p.append("off2"); |
---|
1648 | p.append("on2"); |
---|
1649 | parameters.push_back(p); |
---|
1650 | } |
---|
1651 | #if FLUSH_PRINT_BUFFER > 2 |
---|
1652 | { |
---|
1653 | CbcOrClpParam p("buff!eredMode", "Whether to flush print buffer", |
---|
1654 | "on", CLP_PARAM_STR_BUFFER_MODE); |
---|
1655 | |
---|
1656 | p.append("off"); |
---|
1657 | p.setLonghelp( |
---|
1658 | "Default is on, off switches on unbuffered output"); |
---|
1659 | p.setIntValue(0); |
---|
1660 | parameters.push_back(p); |
---|
1661 | } |
---|
1662 | #endif |
---|
1663 | { |
---|
1664 | CbcOrClpParam p("chol!esky", "Which cholesky algorithm", |
---|
1665 | "native", CLP_PARAM_STR_CHOLESKY, 7); |
---|
1666 | |
---|
1667 | p.append("dense"); |
---|
1668 | //#ifdef FOREIGN_BARRIER |
---|
1669 | #ifdef COIN_HAS_WSMP |
---|
1670 | p.append("fudge!Long"); |
---|
1671 | p.append("wssmp"); |
---|
1672 | #else |
---|
1673 | p.append("fudge!Long_dummy"); |
---|
1674 | p.append("wssmp_dummy"); |
---|
1675 | #endif |
---|
1676 | #if defined(COIN_HAS_AMD) || defined(COIN_HAS_CHOLMOD) || defined(COIN_HAS_GLPK) |
---|
1677 | p.append("Uni!versityOfFlorida"); |
---|
1678 | #else |
---|
1679 | p.append("Uni!versityOfFlorida_dummy"); |
---|
1680 | #endif |
---|
1681 | #ifdef TAUCS_BARRIER |
---|
1682 | p.append("Taucs"); |
---|
1683 | #else |
---|
1684 | p.append("Taucs_dummy"); |
---|
1685 | #endif |
---|
1686 | #ifdef COIN_HAS_MUMPS |
---|
1687 | p.append("Mumps"); |
---|
1688 | #else |
---|
1689 | p.append("Mumps_dummy"); |
---|
1690 | #endif |
---|
1691 | #ifdef PARDISO_BARRIER |
---|
1692 | p.append("Pardiso"); |
---|
1693 | #else |
---|
1694 | p.append("Pardiso_dummy"); |
---|
1695 | #endif |
---|
1696 | p.setLonghelp( |
---|
1697 | "For a barrier code to be effective it needs a good Cholesky ordering and factorization. \ |
---|
1698 | The native ordering and factorization is not state of the art, although acceptable. \ |
---|
1699 | You may want to link in one from another source. See Makefile.locations for some \ |
---|
1700 | possibilities."); |
---|
1701 | |
---|
1702 | parameters.push_back(p); |
---|
1703 | } |
---|
1704 | #ifdef COIN_HAS_CBC |
---|
1705 | { |
---|
1706 | CbcOrClpParam p("clique!Cuts", "Whether to use Clique cuts", |
---|
1707 | "off", CBC_PARAM_STR_CLIQUECUTS); |
---|
1708 | p.append("on"); |
---|
1709 | p.append("root"); |
---|
1710 | p.append("ifmove"); |
---|
1711 | p.append("forceOn"); |
---|
1712 | p.append("onglobal"); |
---|
1713 | p.setLonghelp(CUTS_LONGHELP |
---|
1714 | " Reference: https://github.com/coin-or/Cgl/wiki/CglClique"); |
---|
1715 | |
---|
1716 | parameters.push_back(p); |
---|
1717 | } |
---|
1718 | { |
---|
1719 | CbcOrClpParam p("combine!Solutions", "Whether to use combine solution heuristic", |
---|
1720 | "off", CBC_PARAM_STR_COMBINE); |
---|
1721 | |
---|
1722 | p.append("on"); |
---|
1723 | p.append("both"); |
---|
1724 | p.append("before"); |
---|
1725 | p.append("onquick"); |
---|
1726 | p.append("bothquick"); |
---|
1727 | p.append("beforequick"); |
---|
1728 | p.setLonghelp( |
---|
1729 | "This heuristic does branch and cut on given problem by just \ |
---|
1730 | using variables which have appeared in one or more solutions. \ |
---|
1731 | It is obviously only tried after two or more solutions have been found. " |
---|
1732 | HEURISTICS_LONGHELP); |
---|
1733 | |
---|
1734 | parameters.push_back(p); |
---|
1735 | } |
---|
1736 | { |
---|
1737 | CbcOrClpParam p("combine2!Solutions", "Whether to use crossover solution heuristic", |
---|
1738 | "off", CBC_PARAM_STR_CROSSOVER2); |
---|
1739 | p.append("on"); |
---|
1740 | p.append("both"); |
---|
1741 | p.append("before"); |
---|
1742 | p.setLonghelp( |
---|
1743 | "This heuristic does branch and cut on the problem given by \ |
---|
1744 | fixing variables which have the same value in two or more solutions. \ |
---|
1745 | It obviously only tries after two or more solutions. " |
---|
1746 | HEURISTICS_LONGHELP); |
---|
1747 | parameters.push_back(p); |
---|
1748 | } |
---|
1749 | { |
---|
1750 | CbcOrClpParam p("constraint!fromCutoff", "Whether to use cutoff as constraint", |
---|
1751 | "off", CBC_PARAM_STR_CUTOFF_CONSTRAINT); |
---|
1752 | |
---|
1753 | p.append("on"); |
---|
1754 | p.append("variable"); |
---|
1755 | p.append("forcevariable"); |
---|
1756 | p.append("conflict"); |
---|
1757 | p.setLonghelp( |
---|
1758 | "For some problems, cut generators and general branching work better if the problem would be infeasible if the cost is too high. " |
---|
1759 | "If this option is enabled, the objective function is added as a constraint which right hand side is set to the current cutoff value (objective value of best known solution)"); |
---|
1760 | parameters.push_back(p); |
---|
1761 | } |
---|
1762 | { |
---|
1763 | CbcOrClpParam p("cost!Strategy", "How to use costs for branching priorities", |
---|
1764 | "off", CBC_PARAM_STR_COSTSTRATEGY); |
---|
1765 | |
---|
1766 | p.append("pri!orities"); |
---|
1767 | p.append("column!Order?"); |
---|
1768 | p.append("01f!irst?"); |
---|
1769 | p.append("01l!ast?"); |
---|
1770 | p.append("length!?"); |
---|
1771 | p.append("singletons"); |
---|
1772 | p.append("nonzero"); |
---|
1773 | p.append("general!Force?"); |
---|
1774 | p.setLonghelp( |
---|
1775 | "Value 'priorities' assigns highest priority to variables with largest absolute cost. This primitive strategy can be surprisingly effective. " |
---|
1776 | "Value 'columnorder' assigns the priorities 1, 2, 3, ... with respect to the column ordering. " |
---|
1777 | "Value '01first' ('01last') assignes two sets of priorities such that binary variables get high (low) priority. " |
---|
1778 | "Value 'length' assigns high priority to variables that occur in many equations. "); |
---|
1779 | |
---|
1780 | parameters.push_back(p); |
---|
1781 | } |
---|
1782 | { |
---|
1783 | CbcOrClpParam p("cplex!Use", "Whether to use Cplex!", |
---|
1784 | "off", CBC_PARAM_STR_CPX); |
---|
1785 | p.append("on"); |
---|
1786 | p.setLonghelp( |
---|
1787 | " If the user has Cplex, but wants to use some of Cbc's heuristics \ |
---|
1788 | then you can! If this is on, then Cbc will get to the root node and then \ |
---|
1789 | hand over to Cplex. If heuristics find a solution this can be significantly \ |
---|
1790 | quicker. You will probably want to switch off Cbc's cuts as Cplex thinks \ |
---|
1791 | they are genuine constraints. It is also probable that you want to switch \ |
---|
1792 | off preprocessing, although for difficult problems it is worth trying \ |
---|
1793 | both."); |
---|
1794 | parameters.push_back(p); |
---|
1795 | } |
---|
1796 | #endif |
---|
1797 | { |
---|
1798 | CbcOrClpParam p("cpp!Generate", "Generates C++ code", |
---|
1799 | -1, 50000, CLP_PARAM_INT_CPP, 1); |
---|
1800 | p.setLonghelp( |
---|
1801 | "Once you like what the stand-alone solver does then this allows \ |
---|
1802 | you to generate user_driver.cpp which approximates the code. \ |
---|
1803 | 0 gives simplest driver, 1 generates saves and restores, 2 \ |
---|
1804 | generates saves and restores even for variables at default value. \ |
---|
1805 | 4 bit in cbc generates size dependent code rather than computed values. \ |
---|
1806 | This is now deprecated as you can call stand-alone solver - see \ |
---|
1807 | Cbc/examples/driver4.cpp."); |
---|
1808 | parameters.push_back(p); |
---|
1809 | } |
---|
1810 | #ifdef COIN_HAS_CLP |
---|
1811 | { |
---|
1812 | CbcOrClpParam p("crash", "Whether to create basis for problem", |
---|
1813 | "off", CLP_PARAM_STR_CRASH); |
---|
1814 | |
---|
1815 | p.append("on"); |
---|
1816 | p.append("so!low_halim"); |
---|
1817 | p.append("lots"); |
---|
1818 | #ifdef CLP_INHERIT_MODE |
---|
1819 | p.append("dual"); |
---|
1820 | p.append("dw"); |
---|
1821 | p.append("idiot"); |
---|
1822 | #else |
---|
1823 | p.append("idiot1"); |
---|
1824 | p.append("idiot2"); |
---|
1825 | p.append("idiot3"); |
---|
1826 | p.append("idiot4"); |
---|
1827 | p.append("idiot5"); |
---|
1828 | p.append("idiot6"); |
---|
1829 | p.append("idiot7"); |
---|
1830 | #endif |
---|
1831 | p.setLonghelp( |
---|
1832 | "If crash is set to 'on' and there is an all slack basis then Clp will flip or put structural\ |
---|
1833 | variables into the basis with the aim of getting dual feasible. On average, dual simplex seems to perform\ |
---|
1834 | better without it and there are alternative types of 'crash' for primal simplex, e.g. 'idiot' or 'sprint'. \ |
---|
1835 | A variant due to Solow and Halim which is as 'on' but just flips is also available."); |
---|
1836 | |
---|
1837 | parameters.push_back(p); |
---|
1838 | } |
---|
1839 | { |
---|
1840 | CbcOrClpParam p("cross!over", "Whether to get a basic solution with the simplex algorithm after the barrier algorithm finished", |
---|
1841 | "on", CLP_PARAM_STR_CROSSOVER); |
---|
1842 | p.append("off"); |
---|
1843 | p.append("maybe"); |
---|
1844 | p.append("presolve"); |
---|
1845 | p.setLonghelp( |
---|
1846 | "Interior point algorithms do not obtain a basic solution.\ |
---|
1847 | This option will crossover to a basic solution suitable for ranging or branch and cut. With the current state \ |
---|
1848 | of the solver for quadratic programs it may be a good idea to switch off crossover for this case (and maybe \ |
---|
1849 | presolve as well) - the option 'maybe' does this."); |
---|
1850 | parameters.push_back(p); |
---|
1851 | } |
---|
1852 | #endif |
---|
1853 | #ifdef COIN_HAS_CBC |
---|
1854 | { |
---|
1855 | CbcOrClpParam p("csv!Statistics", "Create one line of statistics", |
---|
1856 | CLP_PARAM_ACTION_CSVSTATISTICS, 2, 1); |
---|
1857 | p.setLonghelp( |
---|
1858 | "This appends statistics to given file name. It will use the default\ |
---|
1859 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
1860 | is initialized to '', i.e. it must be set. Adds header if file empty or does not exist."); |
---|
1861 | parameters.push_back(p); |
---|
1862 | } |
---|
1863 | { |
---|
1864 | CbcOrClpParam p("cutD!epth", "Depth in tree at which to do cuts", |
---|
1865 | -1, COIN_INT_MAX, CBC_PARAM_INT_CUTDEPTH); |
---|
1866 | p.setLonghelp( |
---|
1867 | "Cut generators may be off, on, on only at the root node, or on if they look useful. \ |
---|
1868 | Setting this option to a positive value K let CBC call a cutgenerator on a node whenever the depth in the tree is a multiple of K. \ |
---|
1869 | The default of -1 lets CBC decide."); |
---|
1870 | p.setIntValue(-1); |
---|
1871 | parameters.push_back(p); |
---|
1872 | } |
---|
1873 | { |
---|
1874 | CbcOrClpParam p("cutL!ength", "Length of a cut", |
---|
1875 | -1, COIN_INT_MAX, CBC_PARAM_INT_CUTLENGTH); |
---|
1876 | p.setLonghelp("At present this only applies to Gomory cuts. -1 (default) leaves as is. \ |
---|
1877 | Any value >0 says that all cuts <= this length can be generated both at \ |
---|
1878 | root node and in tree. 0 says to use some dynamic lengths. If value >=10,000,000 \ |
---|
1879 | then the length in tree is value%10000000 - so 10000100 means unlimited length \ |
---|
1880 | at root and 100 in tree."); |
---|
1881 | p.setIntValue(-1); |
---|
1882 | parameters.push_back(p); |
---|
1883 | } |
---|
1884 | { |
---|
1885 | CbcOrClpParam p("cuto!ff", "Bound on the objective value for all solutions", |
---|
1886 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_CUTOFF); |
---|
1887 | p.setDoubleValue(1.0e50); |
---|
1888 | p.setLonghelp( |
---|
1889 | "All solutions must have a better objective value (in a minimization sense) than the value of this option. \ |
---|
1890 | CBC also updates this value whenever it obtains a solution to the value of \ |
---|
1891 | the objective function of the solution minus the cutoff increment."); |
---|
1892 | parameters.push_back(p); |
---|
1893 | } |
---|
1894 | { |
---|
1895 | CbcOrClpParam p("cuts!OnOff", "Switches all cut generators on or off", |
---|
1896 | "off", CBC_PARAM_STR_CUTSSTRATEGY); |
---|
1897 | p.append("on"); |
---|
1898 | p.append("root"); |
---|
1899 | p.append("ifmove"); |
---|
1900 | p.append("forceOn"); |
---|
1901 | p.setLonghelp( |
---|
1902 | "This can be used to switch on or off all cut generators (apart from Reduce and Split). " |
---|
1903 | "Then one can turn individual ones off or on. " |
---|
1904 | CUTS_LONGHELP); |
---|
1905 | parameters.push_back(p); |
---|
1906 | } |
---|
1907 | { |
---|
1908 | CbcOrClpParam p("debug!In", "read valid solution from file", |
---|
1909 | CLP_PARAM_ACTION_DEBUG, 7, 1); |
---|
1910 | |
---|
1911 | p.setLonghelp( |
---|
1912 | "This will read a solution file from the given file name. It will use the default\ |
---|
1913 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
1914 | is initialized to '', i.e. it must be set.\n\n\ |
---|
1915 | If set to create it will create a file called debug.file after search.\n\n\ |
---|
1916 | The idea is that if you suspect a bad cut generator \ |
---|
1917 | you can do a good run with debug set to 'create' and then switch on the cuts you suspect and \ |
---|
1918 | re-run with debug set to 'debug.file' The create case has same effect as saveSolution."); |
---|
1919 | parameters.push_back(p); |
---|
1920 | } |
---|
1921 | #endif |
---|
1922 | #ifdef COIN_HAS_CLP |
---|
1923 | { |
---|
1924 | CbcOrClpParam p("decomp!ose", "Whether to try decomposition", |
---|
1925 | -COIN_INT_MAX, COIN_INT_MAX, CLP_PARAM_INT_DECOMPOSE_BLOCKS, 1); |
---|
1926 | p.setLonghelp( |
---|
1927 | "0 - off, 1 choose blocks >1 use as blocks \ |
---|
1928 | Dantzig Wolfe if primal, Benders if dual \ |
---|
1929 | - uses sprint pass for number of passes"); |
---|
1930 | p.setIntValue(0); |
---|
1931 | parameters.push_back(p); |
---|
1932 | } |
---|
1933 | #if CLP_MULTIPLE_FACTORIZATIONS > 0 |
---|
1934 | { |
---|
1935 | CbcOrClpParam p("dense!Threshold", "Threshold for using dense factorization", |
---|
1936 | -1, 10000, CBC_PARAM_INT_DENSE, 1); |
---|
1937 | p.setLonghelp( |
---|
1938 | "If processed problem <= this use dense factorization"); |
---|
1939 | p.setIntValue(-1); |
---|
1940 | parameters.push_back(p); |
---|
1941 | } |
---|
1942 | #endif |
---|
1943 | #endif |
---|
1944 | #ifdef COIN_HAS_CBC |
---|
1945 | { |
---|
1946 | CbcOrClpParam p("depth!MiniBab", "Depth at which to try mini branch-and-bound", |
---|
1947 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_DEPTHMINIBAB); |
---|
1948 | |
---|
1949 | p.setIntValue(-1); |
---|
1950 | p.setLonghelp( |
---|
1951 | "Rather a complicated parameter but can be useful. -1 means off for large problems but on as if -12 for problems where rows+columns<500, -2 \ |
---|
1952 | means use Cplex if it is linked in. Otherwise if negative then go into depth first complete search fast branch and bound when depth>= -value-2 \ |
---|
1953 | (so -3 will use this at depth>=1). This mode is only switched on after 500 nodes. If you really want to switch it off for small problems then set \ |
---|
1954 | this to -999. If >=0 the value doesn't matter very much. The code will do approximately 100 nodes of fast branch and bound every now and then at depth>=5. \ |
---|
1955 | The actual logic is too twisted to describe here."); |
---|
1956 | parameters.push_back(p); |
---|
1957 | } |
---|
1958 | { |
---|
1959 | CbcOrClpParam p("dextra3", "Extra double parameter 3", |
---|
1960 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_DEXTRA3, 0); |
---|
1961 | p.setDoubleValue(0.0); |
---|
1962 | parameters.push_back(p); |
---|
1963 | } |
---|
1964 | { |
---|
1965 | CbcOrClpParam p("dextra4", "Extra double parameter 4", |
---|
1966 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_DEXTRA4, 0); |
---|
1967 | p.setDoubleValue(0.0); |
---|
1968 | parameters.push_back(p); |
---|
1969 | } |
---|
1970 | { |
---|
1971 | CbcOrClpParam p("dextra4", "Extra double parameter 5", |
---|
1972 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_DEXTRA5, 0); |
---|
1973 | p.setDoubleValue(0.0); |
---|
1974 | parameters.push_back(p); |
---|
1975 | } |
---|
1976 | { |
---|
1977 | CbcOrClpParam p("Dins", "Whether to try Distance Induced Neighborhood Search", |
---|
1978 | "off", CBC_PARAM_STR_DINS); |
---|
1979 | |
---|
1980 | p.append("on"); |
---|
1981 | p.append("both"); |
---|
1982 | p.append("before"); |
---|
1983 | p.append("often"); |
---|
1984 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
1985 | parameters.push_back(p); |
---|
1986 | } |
---|
1987 | #endif |
---|
1988 | { |
---|
1989 | CbcOrClpParam p("direction", "Minimize or Maximize", |
---|
1990 | "min!imize", CLP_PARAM_STR_DIRECTION); |
---|
1991 | p.append("max!imize"); |
---|
1992 | p.append("zero"); |
---|
1993 | p.setLonghelp( |
---|
1994 | "The default is minimize - use 'direction maximize' for maximization.\n\ |
---|
1995 | You can also use the parameters 'maximize' or 'minimize'."); |
---|
1996 | parameters.push_back(p); |
---|
1997 | } |
---|
1998 | { |
---|
1999 | CbcOrClpParam p("directory", "Set Default directory for import etc.", |
---|
2000 | CLP_PARAM_ACTION_DIRECTORY); |
---|
2001 | p.setLonghelp( |
---|
2002 | "This sets the directory which import, export, saveModel, restoreModel etc will use.\ |
---|
2003 | It is initialized to './'"); |
---|
2004 | parameters.push_back(p); |
---|
2005 | } |
---|
2006 | { |
---|
2007 | CbcOrClpParam p("dirSample", "Set directory where the COIN-OR sample problems are.", |
---|
2008 | CLP_PARAM_ACTION_DIRSAMPLE, 7, 1); |
---|
2009 | |
---|
2010 | p.setLonghelp( |
---|
2011 | "This sets the directory where the COIN-OR sample problems reside. It is\ |
---|
2012 | used only when -unitTest is passed to clp. clp will pick up the test problems\ |
---|
2013 | from this directory.\ |
---|
2014 | It is initialized to '../../Data/Sample'"); |
---|
2015 | parameters.push_back(p); |
---|
2016 | } |
---|
2017 | { |
---|
2018 | CbcOrClpParam p("dirNetlib", "Set directory where the netlib problems are.", |
---|
2019 | CLP_PARAM_ACTION_DIRNETLIB, 7, 1); |
---|
2020 | |
---|
2021 | p.setLonghelp( |
---|
2022 | "This sets the directory where the netlib problems reside. One can get\ |
---|
2023 | the netlib problems from COIN-OR or from the main netlib site. This\ |
---|
2024 | parameter is used only when -netlib is passed to clp. clp will pick up the\ |
---|
2025 | netlib problems from this directory. If clp is built without zlib support\ |
---|
2026 | then the problems must be uncompressed.\ |
---|
2027 | It is initialized to '../../Data/Netlib'"); |
---|
2028 | parameters.push_back(p); |
---|
2029 | } |
---|
2030 | { |
---|
2031 | CbcOrClpParam p("dirMiplib", "Set directory where the miplib 2003 problems are.", |
---|
2032 | CBC_PARAM_ACTION_DIRMIPLIB, 7, 1); |
---|
2033 | |
---|
2034 | p.setLonghelp( |
---|
2035 | "This sets the directory where the miplib 2003 problems reside. One can\ |
---|
2036 | get the miplib problems from COIN-OR or from the main miplib site. This\ |
---|
2037 | parameter is used only when -miplib is passed to cbc. cbc will pick up the\ |
---|
2038 | miplib problems from this directory. If cbc is built without zlib support\ |
---|
2039 | then the problems must be uncompressed.\ |
---|
2040 | It is initialized to '../../Data/miplib3'"); |
---|
2041 | parameters.push_back(p); |
---|
2042 | } |
---|
2043 | #ifdef COIN_HAS_CBC |
---|
2044 | { |
---|
2045 | CbcOrClpParam p("diveO!pt", "Diving options", |
---|
2046 | -1, 200000, CBC_PARAM_INT_DIVEOPT, 1); |
---|
2047 | p.setLonghelp( |
---|
2048 | "If >2 && <20 then modify diving options - \ |
---|
2049 | \n\t3 only at root and if no solution, \ |
---|
2050 | \n\t4 only at root and if this heuristic has not got solution, \ |
---|
2051 | \n\t5 decay only if no solution, \ |
---|
2052 | \n\t6 if depth <3 or decay, \ |
---|
2053 | \n\t7 run up to 2 times if solution found 4 otherwise, \ |
---|
2054 | \n\t>10 All only at root (DivingC normal as value-10), \ |
---|
2055 | \n\t>20 All with value-20)."); |
---|
2056 | p.setIntValue(-1); |
---|
2057 | parameters.push_back(p); |
---|
2058 | } |
---|
2059 | { |
---|
2060 | CbcOrClpParam p("diveS!olves", "Diving solve option", |
---|
2061 | -1, 200000, CBC_PARAM_INT_DIVEOPTSOLVES, 1); |
---|
2062 | |
---|
2063 | p.setLonghelp( |
---|
2064 | "If >0 then do up to this many solves. However, the last digit is ignored \ |
---|
2065 | and used for extra options: \ |
---|
2066 | 1-3 enables fixing of satisfied integer variables (but not at bound), \ |
---|
2067 | where 1 switches this off for that dive if the dive goes infeasible, \ |
---|
2068 | and 2 switches it off permanently if the dive goes infeasible."); |
---|
2069 | p.setIntValue(100); |
---|
2070 | parameters.push_back(p); |
---|
2071 | } |
---|
2072 | { |
---|
2073 | CbcOrClpParam p("DivingS!ome", "Whether to try Diving heuristics", |
---|
2074 | "off", CBC_PARAM_STR_DIVINGS); |
---|
2075 | |
---|
2076 | p.append("on"); |
---|
2077 | p.append("both"); |
---|
2078 | p.append("before"); |
---|
2079 | p.setLonghelp( |
---|
2080 | "This switches on a random diving heuristic at various times. \ |
---|
2081 | One may prefer to individually turn diving heuristics on or off. " |
---|
2082 | HEURISTICS_LONGHELP); |
---|
2083 | // C - Coefficient, F - Fractional, G - Guided, L - LineSearch, P - PseudoCost, V - VectorLength. |
---|
2084 | parameters.push_back(p); |
---|
2085 | } |
---|
2086 | { |
---|
2087 | CbcOrClpParam p("DivingC!oefficient", "Whether to try Coefficient diving heuristic", |
---|
2088 | "off", CBC_PARAM_STR_DIVINGC); |
---|
2089 | p.append("on"); |
---|
2090 | p.append("both"); |
---|
2091 | p.append("before"); |
---|
2092 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
2093 | parameters.push_back(p); |
---|
2094 | } |
---|
2095 | { |
---|
2096 | CbcOrClpParam p("DivingF!ractional", "Whether to try Fractional diving heuristic", |
---|
2097 | "off", CBC_PARAM_STR_DIVINGF); |
---|
2098 | p.append("on"); |
---|
2099 | p.append("both"); |
---|
2100 | p.append("before"); |
---|
2101 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
2102 | parameters.push_back(p); |
---|
2103 | } |
---|
2104 | { |
---|
2105 | CbcOrClpParam p("DivingG!uided", "Whether to try Guided diving heuristic", |
---|
2106 | "off", CBC_PARAM_STR_DIVINGG); |
---|
2107 | p.append("on"); |
---|
2108 | p.append("both"); |
---|
2109 | p.append("before"); |
---|
2110 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
2111 | parameters.push_back(p); |
---|
2112 | } |
---|
2113 | { |
---|
2114 | CbcOrClpParam p("DivingL!ineSearch", "Whether to try Linesearch diving heuristic", |
---|
2115 | "off", CBC_PARAM_STR_DIVINGL); |
---|
2116 | p.append("on"); |
---|
2117 | p.append("both"); |
---|
2118 | p.append("before"); |
---|
2119 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
2120 | parameters.push_back(p); |
---|
2121 | } |
---|
2122 | { |
---|
2123 | CbcOrClpParam p("DivingP!seudoCost", "Whether to try Pseudocost diving heuristic", |
---|
2124 | "off", CBC_PARAM_STR_DIVINGP); |
---|
2125 | p.append("on"); |
---|
2126 | p.append("both"); |
---|
2127 | p.append("before"); |
---|
2128 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
2129 | parameters.push_back(p); |
---|
2130 | } |
---|
2131 | { |
---|
2132 | CbcOrClpParam p("DivingV!ectorLength", "Whether to try Vectorlength diving heuristic", |
---|
2133 | "off", CBC_PARAM_STR_DIVINGV); |
---|
2134 | p.append("on"); |
---|
2135 | p.append("both"); |
---|
2136 | p.append("before"); |
---|
2137 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
2138 | parameters.push_back(p); |
---|
2139 | } |
---|
2140 | { |
---|
2141 | CbcOrClpParam p("doH!euristic", "Do heuristics before any preprocessing", |
---|
2142 | CBC_PARAM_ACTION_DOHEURISTIC, 3); |
---|
2143 | p.setLonghelp( |
---|
2144 | "Normally heuristics are done in branch and bound. It may be useful to do them outside. \ |
---|
2145 | Only those heuristics with 'both' or 'before' set will run. \ |
---|
2146 | Doing this may also set cutoff, which can help with preprocessing."); |
---|
2147 | parameters.push_back(p); |
---|
2148 | } |
---|
2149 | #endif |
---|
2150 | #ifdef COIN_HAS_CLP |
---|
2151 | { |
---|
2152 | CbcOrClpParam p("dualB!ound", "Initially algorithm acts as if no \ |
---|
2153 | gap between bounds exceeds this value", |
---|
2154 | 1.0e-20, 1.0e12, CLP_PARAM_DBL_DUALBOUND); |
---|
2155 | p.setLonghelp( |
---|
2156 | "The dual algorithm in Clp is a single phase algorithm as opposed to a two phase\ |
---|
2157 | algorithm where you first get feasible then optimal. If a problem has both upper and\ |
---|
2158 | lower bounds then it is trivial to get dual feasible by setting non basic variables\ |
---|
2159 | to correct bound. If the gap between the upper and lower bounds of a variable is more\ |
---|
2160 | than the value of dualBound Clp introduces fake bounds so that it can make the problem\ |
---|
2161 | dual feasible. This has the same effect as a composite objective function in the\ |
---|
2162 | primal algorithm. Too high a value may mean more iterations, while too low a bound means\ |
---|
2163 | the code may go all the way and then have to increase the bounds. OSL had a heuristic to\ |
---|
2164 | adjust bounds, maybe we need that here."); |
---|
2165 | |
---|
2166 | parameters.push_back(p); |
---|
2167 | } |
---|
2168 | { |
---|
2169 | CbcOrClpParam p("dualize", "Solves dual reformulation", |
---|
2170 | 0, 4, CLP_PARAM_INT_DUALIZE, 1); |
---|
2171 | p.setLonghelp( |
---|
2172 | "Don't even think about it."); |
---|
2173 | |
---|
2174 | parameters.push_back(p); |
---|
2175 | } |
---|
2176 | { |
---|
2177 | CbcOrClpParam p("dualP!ivot", "Dual pivot choice algorithm", |
---|
2178 | "auto!matic", CLP_PARAM_STR_DUALPIVOT, 7, 1); |
---|
2179 | p.append("dant!zig"); |
---|
2180 | p.append("partial"); |
---|
2181 | p.append("steep!est"); |
---|
2182 | p.append("PEsteep!est"); |
---|
2183 | p.append("PEdantzig"); |
---|
2184 | p.setLonghelp( |
---|
2185 | "The Dantzig method is simple but its use is deprecated. Steepest is the method of choice and there\ |
---|
2186 | are two variants which keep all weights updated but only scan a subset each iteration.\ |
---|
2187 | Partial switches this on while automatic decides at each iteration based on information\ |
---|
2188 | about the factorization.\ |
---|
2189 | The PE variants add the Positive Edge criterion. \ |
---|
2190 | This selects incoming variables to try to avoid degenerate moves. See also option psi."); |
---|
2191 | parameters.push_back(p); |
---|
2192 | } |
---|
2193 | { |
---|
2194 | CbcOrClpParam p("dualS!implex", "Do dual simplex algorithm", |
---|
2195 | CLP_PARAM_ACTION_DUALSIMPLEX); |
---|
2196 | p.setLonghelp( |
---|
2197 | "This command solves the continuous relaxation of the current model using the dual steepest edge algorithm.\ |
---|
2198 | The time and iterations may be affected by settings such as presolve, scaling, crash\ |
---|
2199 | and also by dual pivot method, fake bound on variables and dual and primal tolerances."); |
---|
2200 | parameters.push_back(p); |
---|
2201 | } |
---|
2202 | #endif |
---|
2203 | { |
---|
2204 | CbcOrClpParam p("dualT!olerance", "For an optimal solution \ |
---|
2205 | no dual infeasibility may exceed this value", |
---|
2206 | 1.0e-20, COIN_DBL_MAX, CLP_PARAM_DBL_DUALTOLERANCE); |
---|
2207 | p.setLonghelp( |
---|
2208 | "Normally the default tolerance is fine, but one may want to increase it a\ |
---|
2209 | bit if the dual simplex algorithm seems to be having a hard time. One method which can be faster is \ |
---|
2210 | to use a large tolerance e.g. 1.0e-4 and the dual simplex algorithm and then to clean up the problem using the primal simplex algorithm with the \ |
---|
2211 | correct tolerance (remembering to switch off presolve for this final short clean up phase)."); |
---|
2212 | parameters.push_back(p); |
---|
2213 | } |
---|
2214 | #ifdef COIN_HAS_CBC |
---|
2215 | { |
---|
2216 | CbcOrClpParam p("dw!Heuristic", "Whether to try Dantzig Wolfe heuristic", |
---|
2217 | "off", CBC_PARAM_STR_DW); |
---|
2218 | p.append("on"); |
---|
2219 | p.append("both"); |
---|
2220 | p.append("before"); |
---|
2221 | p.setLonghelp( |
---|
2222 | "This heuristic is very very compute intensive. It tries to find a Dantzig Wolfe structure and use that." |
---|
2223 | HEURISTICS_LONGHELP); |
---|
2224 | parameters.push_back(p); |
---|
2225 | } |
---|
2226 | #endif |
---|
2227 | #ifdef COIN_HAS_CLP |
---|
2228 | { |
---|
2229 | CbcOrClpParam p("either!Simplex", "Do dual or primal simplex algorithm", |
---|
2230 | CLP_PARAM_ACTION_EITHERSIMPLEX); |
---|
2231 | p.setLonghelp( |
---|
2232 | "This command solves the continuous relaxation of the current model using the dual or primal algorithm,\ |
---|
2233 | based on a dubious analysis of model."); |
---|
2234 | parameters.push_back(p); |
---|
2235 | } |
---|
2236 | #endif |
---|
2237 | { |
---|
2238 | CbcOrClpParam p("end", "Stops clp execution", |
---|
2239 | CLP_PARAM_ACTION_EXIT); |
---|
2240 | p.setLonghelp( |
---|
2241 | "This stops execution ; end, exit, quit and stop are synonyms"); |
---|
2242 | parameters.push_back(p); |
---|
2243 | } |
---|
2244 | { |
---|
2245 | CbcOrClpParam p("environ!ment", "Read commands from environment", |
---|
2246 | CLP_PARAM_ACTION_ENVIRONMENT, 7, 0); |
---|
2247 | p.setLonghelp( |
---|
2248 | "This starts reading from environment variable CBC_CLP_ENVIRONMENT."); |
---|
2249 | parameters.push_back(p); |
---|
2250 | } |
---|
2251 | { |
---|
2252 | CbcOrClpParam p("error!sAllowed", "Whether to allow import errors", |
---|
2253 | "off", CLP_PARAM_STR_ERRORSALLOWED, 3); |
---|
2254 | |
---|
2255 | p.append("on"); |
---|
2256 | p.setLonghelp( |
---|
2257 | "The default is not to use any model which had errors when reading the mps file.\ |
---|
2258 | Setting this to 'on' will allow all errors from which the code can recover\ |
---|
2259 | simply by ignoring the error. There are some errors from which the code can not recover \ |
---|
2260 | e.g. no ENDATA. This has to be set before import i.e. -errorsAllowed on -import xxxxxx.mps."); |
---|
2261 | parameters.push_back(p); |
---|
2262 | } |
---|
2263 | { |
---|
2264 | CbcOrClpParam p("exit", "Stops clp execution", |
---|
2265 | CLP_PARAM_ACTION_EXIT); |
---|
2266 | p.setLonghelp( |
---|
2267 | "This stops the execution of Clp, end, exit, quit and stop are synonyms"); |
---|
2268 | parameters.push_back(p); |
---|
2269 | } |
---|
2270 | #ifdef COIN_HAS_CBC |
---|
2271 | { |
---|
2272 | CbcOrClpParam p("exper!iment", "Whether to use testing features", |
---|
2273 | -1, 200000, CBC_PARAM_INT_EXPERIMENT, 0); |
---|
2274 | p.setLonghelp( |
---|
2275 | "Defines how adventurous you want to be in using new ideas. \ |
---|
2276 | 0 then no new ideas, 1 fairly sensible, 2 a bit dubious, 3 you are on your own!"); |
---|
2277 | |
---|
2278 | p.setIntValue(0); |
---|
2279 | parameters.push_back(p); |
---|
2280 | } |
---|
2281 | { |
---|
2282 | CbcOrClpParam p("expensive!Strong", "Whether to do even more strong branching", |
---|
2283 | 0, COIN_INT_MAX, CBC_PARAM_INT_STRONG_STRATEGY, 0); |
---|
2284 | |
---|
2285 | p.setLonghelp( |
---|
2286 | "Strategy for extra strong branching. \ |
---|
2287 | 0 is normal strong branching. \ |
---|
2288 | 1, 2, 4, and 6 does strong branching on all fractional variables if \ |
---|
2289 | at the root node (1), \ |
---|
2290 | at depth less than modifier (2), \ |
---|
2291 | objective equals best possible (4), or \ |
---|
2292 | at depth less than modifier and objective equals best possible (6). \ |
---|
2293 | 11, 12, 14, and 16 are like 1, 2, 4, and 6, respecitively, but do strong branching on all integer (incl. non-fractional) variables. \ |
---|
2294 | Values >= 100 are used to specify a depth limit (value/100), otherwise 5 is used. \ |
---|
2295 | If the values >= 100, then above rules are applied to value%100."); |
---|
2296 | p.setIntValue(0); |
---|
2297 | parameters.push_back(p); |
---|
2298 | } |
---|
2299 | #endif |
---|
2300 | { |
---|
2301 | CbcOrClpParam p("export", "Export model as mps file", |
---|
2302 | CLP_PARAM_ACTION_EXPORT); |
---|
2303 | |
---|
2304 | p.setLonghelp( |
---|
2305 | "This will write an MPS format file to the given file name. It will use the default\ |
---|
2306 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
2307 | is initialized to 'default.mps'. \ |
---|
2308 | It can be useful to get rid of the original names and go over to using Rnnnnnnn and Cnnnnnnn. This can be done by setting 'keepnames' off before importing mps file."); |
---|
2309 | parameters.push_back(p); |
---|
2310 | } |
---|
2311 | #ifdef COIN_HAS_CBC |
---|
2312 | { |
---|
2313 | CbcOrClpParam p("extra1", "Extra integer parameter 1", |
---|
2314 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_EXTRA1, 0); |
---|
2315 | p.setIntValue(-1); |
---|
2316 | parameters.push_back(p); |
---|
2317 | } |
---|
2318 | { |
---|
2319 | CbcOrClpParam p("extra2", "Extra integer parameter 2", |
---|
2320 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_EXTRA2, 0); |
---|
2321 | p.setIntValue(-1); |
---|
2322 | parameters.push_back(p); |
---|
2323 | } |
---|
2324 | { |
---|
2325 | CbcOrClpParam p("extra3", "Extra integer parameter 3", |
---|
2326 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_EXTRA3, 0); |
---|
2327 | p.setIntValue(-1); |
---|
2328 | parameters.push_back(p); |
---|
2329 | } |
---|
2330 | { |
---|
2331 | CbcOrClpParam p("extra4", "Extra integer parameter 4", |
---|
2332 | -1, COIN_INT_MAX, CBC_PARAM_INT_EXTRA4, 0); |
---|
2333 | |
---|
2334 | p.setIntValue(-1); |
---|
2335 | p.setLonghelp( |
---|
2336 | "This switches on yet more special options!! \ |
---|
2337 | The bottom digit is a strategy when to used shadow price stuff e.g. 3 \ |
---|
2338 | means use until a solution is found. The next two digits say what sort \ |
---|
2339 | of dual information to use. After that it goes back to powers of 2 so -\n\ |
---|
2340 | \n\t1000 - switches on experimental hotstart\n\ |
---|
2341 | \n\t2,4,6000 - switches on experimental methods of stopping cuts\n\ |
---|
2342 | \n\t8000 - increase minimum drop gradually\n\ |
---|
2343 | \n\t16000 - switches on alternate gomory criterion"); |
---|
2344 | parameters.push_back(p); |
---|
2345 | } |
---|
2346 | { |
---|
2347 | CbcOrClpParam p("extraV!ariables", "Allow creation of extra integer variables", |
---|
2348 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_EXTRA_VARIABLES, 0); |
---|
2349 | p.setIntValue(0); |
---|
2350 | p.setLonghelp( |
---|
2351 | "Switches on a trivial re-formulation that introduces extra integer variables to group together variables with same cost."); |
---|
2352 | parameters.push_back(p); |
---|
2353 | } |
---|
2354 | #endif |
---|
2355 | #ifdef COIN_HAS_CLP |
---|
2356 | { |
---|
2357 | CbcOrClpParam p("fact!orization", "Which factorization to use", |
---|
2358 | "normal", CLP_PARAM_STR_FACTORIZATION); |
---|
2359 | p.append("dense"); |
---|
2360 | p.append("simple"); |
---|
2361 | p.append("osl"); |
---|
2362 | p.setLonghelp( |
---|
2363 | #ifndef ABC_INHERIT |
---|
2364 | "The default is to use the normal CoinFactorization, but \ |
---|
2365 | other choices are a dense one, OSL's, or one designed for small problems." |
---|
2366 | #else |
---|
2367 | "Normally the default is to use the normal CoinFactorization, but \ |
---|
2368 | other choices are a dense one, OSL's, or one designed for small problems. \ |
---|
2369 | However if at Aboca then the default is CoinAbcFactorization and other choices are \ |
---|
2370 | a dense one, one designed for small problems or if enabled a long factorization." |
---|
2371 | #endif |
---|
2372 | ); |
---|
2373 | parameters.push_back(p); |
---|
2374 | } |
---|
2375 | { |
---|
2376 | CbcOrClpParam p("fakeB!ound", "All bounds <= this value - DEBUG", |
---|
2377 | 1.0, 1.0e15, CLP_PARAM_ACTION_FAKEBOUND, 0); |
---|
2378 | parameters.push_back(p); |
---|
2379 | } |
---|
2380 | #ifdef COIN_HAS_CBC |
---|
2381 | { |
---|
2382 | CbcOrClpParam p("feas!ibilityPump", "Whether to try the Feasibility Pump heuristic", |
---|
2383 | "off", CBC_PARAM_STR_FPUMP); |
---|
2384 | |
---|
2385 | p.append("on"); |
---|
2386 | p.append("both"); |
---|
2387 | p.append("before"); |
---|
2388 | p.setLonghelp( |
---|
2389 | "This heuristic is due to Fischetti, Glover, and Lodi \ |
---|
2390 | and uses a sequence of LPs to try and get an integer feasible solution. \ |
---|
2391 | Some fine tuning is available by options passFeasibilityPump and pumpTune. " |
---|
2392 | HEURISTICS_LONGHELP); |
---|
2393 | parameters.push_back(p); |
---|
2394 | } |
---|
2395 | { |
---|
2396 | CbcOrClpParam p("fix!OnDj", "Try heuristic based on fixing variables with \ |
---|
2397 | reduced costs greater than this", |
---|
2398 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_DJFIX, 1); |
---|
2399 | p.setLonghelp( |
---|
2400 | "If this is set integer variables with reduced costs greater than this will be fixed \ |
---|
2401 | before branch and bound - use with extreme caution!"); |
---|
2402 | parameters.push_back(p); |
---|
2403 | } |
---|
2404 | { |
---|
2405 | CbcOrClpParam p("flow!CoverCuts", "Whether to use Flow Cover cuts", |
---|
2406 | "off", CBC_PARAM_STR_FLOWCUTS); |
---|
2407 | p.append("on"); |
---|
2408 | p.append("root"); |
---|
2409 | p.append("ifmove"); |
---|
2410 | p.append("forceOn"); |
---|
2411 | p.append("onglobal"); |
---|
2412 | p.setFakeKeyWord(3); |
---|
2413 | p.setLonghelp(CUTS_LONGHELP |
---|
2414 | " Reference: https://github.com/coin-or/Cgl/wiki/CglFlowCover"); // Can also enter testing values by plusnn (==ifmove) |
---|
2415 | parameters.push_back(p); |
---|
2416 | } |
---|
2417 | { |
---|
2418 | CbcOrClpParam p("force!Solution", "Whether to use given solution as crash for BAB", |
---|
2419 | -1, 20000000, CLP_PARAM_INT_USESOLUTION); |
---|
2420 | p.setIntValue(-1); |
---|
2421 | p.setLonghelp( |
---|
2422 | "-1 off. If 1 then tries to branch to solution given by AMPL or priorities file. \ |
---|
2423 | If 0 then just tries to set as best solution \ |
---|
2424 | If >1 then also does that many nodes on fixed problem."); |
---|
2425 | parameters.push_back(p); |
---|
2426 | } |
---|
2427 | { |
---|
2428 | CbcOrClpParam p("fraction!forBAB", "Fraction in feasibility pump", |
---|
2429 | 1.0e-5, 1.1, CBC_PARAM_DBL_SMALLBAB, 1); |
---|
2430 | p.setDoubleValue(0.5); |
---|
2431 | p.setLonghelp( |
---|
2432 | "After a pass in the feasibility pump, variables which have not moved \ |
---|
2433 | about are fixed and if the preprocessed model is smaller than this fraction of the original problem, \ |
---|
2434 | a few nodes of branch and bound are done on the reduced problem."); |
---|
2435 | parameters.push_back(p); |
---|
2436 | } |
---|
2437 | #endif |
---|
2438 | { |
---|
2439 | CbcOrClpParam p("gamma!(Delta)", "Whether to regularize barrier", |
---|
2440 | "off", CLP_PARAM_STR_GAMMA, 7, 1); |
---|
2441 | p.append("on"); |
---|
2442 | p.append("gamma"); |
---|
2443 | p.append("delta"); |
---|
2444 | p.append("onstrong"); |
---|
2445 | p.append("gammastrong"); |
---|
2446 | p.append("deltastrong"); |
---|
2447 | parameters.push_back(p); |
---|
2448 | } |
---|
2449 | #endif |
---|
2450 | #ifdef COIN_HAS_CBC |
---|
2451 | { |
---|
2452 | CbcOrClpParam p("GMI!Cuts", "Whether to use alternative Gomory cuts", |
---|
2453 | "off", CBC_PARAM_STR_GMICUTS); |
---|
2454 | |
---|
2455 | p.append("on"); |
---|
2456 | p.append("root"); |
---|
2457 | p.append("ifmove"); |
---|
2458 | p.append("forceOn"); |
---|
2459 | p.append("endonly"); |
---|
2460 | p.append("long"); |
---|
2461 | p.append("longroot"); |
---|
2462 | p.append("longifmove"); |
---|
2463 | p.append("forceLongOn"); |
---|
2464 | p.append("longendonly"); |
---|
2465 | p.setLonghelp(CUTS_LONGHELP |
---|
2466 | " This version is by Giacomo Nannicini and may be more robust than gomoryCuts."); |
---|
2467 | parameters.push_back(p); |
---|
2468 | } |
---|
2469 | { |
---|
2470 | CbcOrClpParam p("gomory!Cuts", "Whether to use Gomory cuts", |
---|
2471 | "off", CBC_PARAM_STR_GOMORYCUTS); |
---|
2472 | |
---|
2473 | p.append("on"); |
---|
2474 | p.append("root"); |
---|
2475 | p.append("ifmove"); |
---|
2476 | p.append("forceOn"); |
---|
2477 | p.append("onglobal"); |
---|
2478 | p.append("forceandglobal"); |
---|
2479 | p.append("forceLongOn"); |
---|
2480 | p.append("long"); |
---|
2481 | p.setLonghelp( |
---|
2482 | "The original cuts - beware of imitations! Having gone out of favor, \ |
---|
2483 | they are now more fashionable as LP solvers are more robust and they interact well \ |
---|
2484 | with other cuts. They will almost always give cuts (although in this executable \ |
---|
2485 | they are limited as to number of variables in cut). However the cuts may be dense \ |
---|
2486 | so it is worth experimenting (Long allows any length). " |
---|
2487 | CUTS_LONGHELP |
---|
2488 | " Reference: https://github.com/coin-or/Cgl/wiki/CglGomory"); |
---|
2489 | parameters.push_back(p); |
---|
2490 | } |
---|
2491 | { |
---|
2492 | CbcOrClpParam p("greedy!Heuristic", "Whether to use a greedy heuristic", |
---|
2493 | "off", CBC_PARAM_STR_GREEDY); |
---|
2494 | |
---|
2495 | p.append("on"); |
---|
2496 | p.append("both"); |
---|
2497 | p.append("before"); |
---|
2498 | //p.append("root"); |
---|
2499 | p.setLonghelp( |
---|
2500 | "This heuristic tries to obtain a feasible solution by just fixing a percentage of variables and then try a small branch and cut run. " |
---|
2501 | HEURISTICS_LONGHELP); |
---|
2502 | parameters.push_back(p); |
---|
2503 | } |
---|
2504 | #endif |
---|
2505 | { |
---|
2506 | CbcOrClpParam p("gsolu!tion", "Puts glpk solution to file", |
---|
2507 | CLP_PARAM_ACTION_GMPL_SOLUTION); |
---|
2508 | |
---|
2509 | p.setLonghelp( |
---|
2510 | "Will write a glpk solution file to the given file name. It will use the default \ |
---|
2511 | directory given by 'directory'. A name of '$' will use the previous value for the \ |
---|
2512 | name. This is initialized to 'stdout' (this defaults to ordinary solution if stdout). \ |
---|
2513 | If problem created from gmpl model - will do any reports."); |
---|
2514 | parameters.push_back(p); |
---|
2515 | } |
---|
2516 | { |
---|
2517 | CbcOrClpParam p("guess", "Guesses at good parameters", CLP_PARAM_ACTION_GUESS, 7); |
---|
2518 | p.setLonghelp( |
---|
2519 | "This looks at model statistics and does an initial solve \ |
---|
2520 | setting some parameters which may help you to think of possibilities."); |
---|
2521 | parameters.push_back(p); |
---|
2522 | } |
---|
2523 | #ifdef COIN_HAS_CBC |
---|
2524 | { |
---|
2525 | CbcOrClpParam p("heur!isticsOnOff", "Switches most primal heuristics on or off", |
---|
2526 | "off", CBC_PARAM_STR_HEURISTICSTRATEGY); |
---|
2527 | p.append("on"); |
---|
2528 | p.setLonghelp( |
---|
2529 | "This option can be used to switch on or off all heuristics that search for feasible solutions,\ |
---|
2530 | except for the local tree search, as it dramatically alters the search.\ |
---|
2531 | Then individual heuristics can be turned off or on."); |
---|
2532 | parameters.push_back(p); |
---|
2533 | } |
---|
2534 | { |
---|
2535 | CbcOrClpParam p("help", "Print out version, non-standard options and some help", |
---|
2536 | CLP_PARAM_ACTION_HELP, 3); |
---|
2537 | p.setLonghelp( |
---|
2538 | "This prints out some help to get user started. If you have printed this then \ |
---|
2539 | you should be past that stage:-)"); |
---|
2540 | parameters.push_back(p); |
---|
2541 | } |
---|
2542 | #endif |
---|
2543 | #ifdef COIN_HAS_CBC |
---|
2544 | { |
---|
2545 | CbcOrClpParam p("hOp!tions", "Heuristic options", |
---|
2546 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_HOPTIONS, 1); |
---|
2547 | p.setIntValue(0); |
---|
2548 | p.setLonghelp( |
---|
2549 | "Value 1 stops heuristics immediately if the allowable gap has been reached. \ |
---|
2550 | Other values are for the feasibility pump - \ |
---|
2551 | 2 says do exact number of passes given, \ |
---|
2552 | 4 only applies if an initial cutoff has been given and says relax after 50 passes, \ |
---|
2553 | while 8 will adapt the cutoff rhs after the first solution if it looks as if the code is stalling."); |
---|
2554 | parameters.push_back(p); |
---|
2555 | } |
---|
2556 | { |
---|
2557 | CbcOrClpParam p("hot!StartMaxIts", "Maximum iterations on hot start", |
---|
2558 | 0, COIN_INT_MAX, CBC_PARAM_INT_MAXHOTITS); |
---|
2559 | parameters.push_back(p); |
---|
2560 | } |
---|
2561 | #endif |
---|
2562 | #ifdef COIN_HAS_CLP |
---|
2563 | { |
---|
2564 | CbcOrClpParam p("idiot!Crash", "Whether to try idiot crash", |
---|
2565 | -1, COIN_INT_MAX, CLP_PARAM_INT_IDIOT); |
---|
2566 | |
---|
2567 | p.setLonghelp( |
---|
2568 | "This is a type of 'crash' which works well on some homogeneous problems.\ |
---|
2569 | It works best on problems with unit elements and rhs but will do something to any \ |
---|
2570 | model. It should only be used before the primal simplex algorithm. It can be set to -1 when the code \ |
---|
2571 | decides for itself whether to use it, 0 to switch off, or n > 0 to do n passes."); |
---|
2572 | parameters.push_back(p); |
---|
2573 | } |
---|
2574 | #endif |
---|
2575 | { |
---|
2576 | CbcOrClpParam p("import", "Import model from mps file", |
---|
2577 | CLP_PARAM_ACTION_IMPORT, 3); |
---|
2578 | p.setLonghelp( |
---|
2579 | "This will read an MPS format file from the given file name. It will use the default\ |
---|
2580 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
2581 | is initialized to '', i.e. it must be set. If you have libgz then it can read compressed\ |
---|
2582 | files 'xxxxxxxx.gz' or 'xxxxxxxx.bz2'. \ |
---|
2583 | If 'keepnames' is off, then names are dropped -> Rnnnnnnn and Cnnnnnnn."); |
---|
2584 | parameters.push_back(p); |
---|
2585 | } |
---|
2586 | #ifdef COIN_HAS_CBC |
---|
2587 | { |
---|
2588 | CbcOrClpParam p("inc!rement", "A valid solution must be at least this \ |
---|
2589 | much better than last integer solution", |
---|
2590 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_INCREMENT); |
---|
2591 | |
---|
2592 | p.setLonghelp( |
---|
2593 | "Whenever a solution is found the bound on the objective value for new solutions is set to the\ |
---|
2594 | objective function of the found solution (in a minimization sense) plus this. If it is not set then CBC will try and work one out, e.g. if \ |
---|
2595 | all objective coefficients are multiples of 0.01 and only integer variables have entries in \ |
---|
2596 | the objective function, then the increment can be set to 0.01. Be careful if setting this to a negative value!"); |
---|
2597 | |
---|
2598 | parameters.push_back(p); |
---|
2599 | } |
---|
2600 | { |
---|
2601 | CbcOrClpParam p("inf!easibilityWeight", "Each integer infeasibility is expected \ |
---|
2602 | to cost this much", |
---|
2603 | 0.0, COIN_DBL_MAX, CBC_PARAM_DBL_INFEASIBILITYWEIGHT, 1); |
---|
2604 | p.setLonghelp( |
---|
2605 | "A primitive way of deciding which node to explore next. Satisfying each integer infeasibility is \ |
---|
2606 | expected to cost this much."); |
---|
2607 | parameters.push_back(p); |
---|
2608 | } |
---|
2609 | { |
---|
2610 | CbcOrClpParam p("initialS!olve", "Solve to continuous", |
---|
2611 | CLP_PARAM_ACTION_SOLVECONTINUOUS); |
---|
2612 | |
---|
2613 | p.setLonghelp( |
---|
2614 | "This just solves the problem to continuous - without adding any cuts"); |
---|
2615 | parameters.push_back(p); |
---|
2616 | } |
---|
2617 | { |
---|
2618 | CbcOrClpParam p("integerT!olerance", "For a feasible solution \ |
---|
2619 | no integer variable may be more than this away from an integer value", |
---|
2620 | 1.0e-20, 0.5, CBC_PARAM_DBL_INTEGERTOLERANCE); |
---|
2621 | p.setLonghelp( |
---|
2622 | "Beware of setting this smaller than the primal feasibility tolerance."); |
---|
2623 | parameters.push_back(p); |
---|
2624 | } |
---|
2625 | #endif |
---|
2626 | #ifdef COIN_HAS_CLP |
---|
2627 | { |
---|
2628 | CbcOrClpParam p("keepN!ames", "Whether to keep names from import", |
---|
2629 | "on", CLP_PARAM_STR_KEEPNAMES); |
---|
2630 | p.append("off"); |
---|
2631 | p.setLonghelp( |
---|
2632 | "It saves space to get rid of names so if you need to you can set this to off. \ |
---|
2633 | This needs to be set before the import of model - so -keepnames off -import xxxxx.mps."); |
---|
2634 | parameters.push_back(p); |
---|
2635 | } |
---|
2636 | { |
---|
2637 | CbcOrClpParam p("KKT", "Whether to use KKT factorization in barrier", |
---|
2638 | "off", CLP_PARAM_STR_KKT, 7, 1); |
---|
2639 | p.append("on"); |
---|
2640 | parameters.push_back(p); |
---|
2641 | } |
---|
2642 | #endif |
---|
2643 | #ifdef COIN_HAS_CBC |
---|
2644 | { |
---|
2645 | CbcOrClpParam p("knapsack!Cuts", "Whether to use Knapsack cuts", |
---|
2646 | "off", CBC_PARAM_STR_KNAPSACKCUTS); |
---|
2647 | |
---|
2648 | p.append("on"); |
---|
2649 | p.append("root"); |
---|
2650 | p.append("ifmove"); |
---|
2651 | p.append("forceOn"); |
---|
2652 | p.append("onglobal"); |
---|
2653 | p.append("forceandglobal"); |
---|
2654 | p.setLonghelp(CUTS_LONGHELP |
---|
2655 | " Reference: https://github.com/coin-or/Cgl/wiki/CglKnapsackCover"); |
---|
2656 | parameters.push_back(p); |
---|
2657 | } |
---|
2658 | { |
---|
2659 | CbcOrClpParam p("lagomory!Cuts", "Whether to use Lagrangean Gomory cuts", |
---|
2660 | "off", CBC_PARAM_STR_LAGOMORYCUTS); |
---|
2661 | p.append("endonlyroot"); |
---|
2662 | p.append("endcleanroot"); |
---|
2663 | p.append("root"); |
---|
2664 | p.append("endonly"); |
---|
2665 | p.append("endclean"); |
---|
2666 | p.append("endboth"); |
---|
2667 | p.append("onlyaswell"); |
---|
2668 | p.append("cleanaswell"); |
---|
2669 | p.append("bothaswell"); |
---|
2670 | p.append("onlyinstead"); |
---|
2671 | p.append("cleaninstead"); |
---|
2672 | p.append("bothinstead"); |
---|
2673 | p.append("onlyaswellroot"); |
---|
2674 | p.append("cleanaswellroot"); |
---|
2675 | p.append("bothaswellroot"); |
---|
2676 | p.setLonghelp( |
---|
2677 | "This is a gross simplification of 'A Relax-and-Cut Framework for Gomory's Mixed-Integer Cuts' \ |
---|
2678 | by Matteo Fischetti & Domenico Salvagnin. This simplification \ |
---|
2679 | just uses original constraints while modifying objective using other cuts. \ |
---|
2680 | So you don't use messy constraints generated by Gomory etc. \ |
---|
2681 | A variant is to allow non messy cuts e.g. clique cuts. \ |
---|
2682 | So 'only' does this while 'clean' also allows integral valued cuts. \ |
---|
2683 | 'End' is recommended and waits until other cuts have finished before it \ |
---|
2684 | does a few passes. \ |
---|
2685 | The length options for gomory cuts are used."); |
---|
2686 | parameters.push_back(p); |
---|
2687 | } |
---|
2688 | { |
---|
2689 | CbcOrClpParam p("latwomir!Cuts", "Whether to use Lagrangean TwoMir cuts", |
---|
2690 | "off", CBC_PARAM_STR_LATWOMIRCUTS); |
---|
2691 | |
---|
2692 | p.append("endonlyroot"); |
---|
2693 | p.append("endcleanroot"); |
---|
2694 | p.append("endbothroot"); |
---|
2695 | p.append("endonly"); |
---|
2696 | p.append("endclean"); |
---|
2697 | p.append("endboth"); |
---|
2698 | p.append("onlyaswell"); |
---|
2699 | p.append("cleanaswell"); |
---|
2700 | p.append("bothaswell"); |
---|
2701 | p.append("onlyinstead"); |
---|
2702 | p.append("cleaninstead"); |
---|
2703 | p.append("bothinstead"); |
---|
2704 | p.setLonghelp( |
---|
2705 | "This is a Lagrangean relaxation for TwoMir cuts. See \ |
---|
2706 | lagomoryCuts for description of options."); |
---|
2707 | parameters.push_back(p); |
---|
2708 | } |
---|
2709 | { |
---|
2710 | CbcOrClpParam p("lift!AndProjectCuts", "Whether to use Lift and Project cuts", |
---|
2711 | "off", CBC_PARAM_STR_LANDPCUTS); |
---|
2712 | |
---|
2713 | p.append("on"); |
---|
2714 | p.append("root"); |
---|
2715 | p.append("ifmove"); |
---|
2716 | p.append("forceOn"); |
---|
2717 | p.setLonghelp( |
---|
2718 | "These cuts may be expensive to compute. " |
---|
2719 | CUTS_LONGHELP |
---|
2720 | " Reference: https://github.com/coin-or/Cgl/wiki/CglLandP"); |
---|
2721 | parameters.push_back(p); |
---|
2722 | } |
---|
2723 | { |
---|
2724 | CbcOrClpParam p("local!TreeSearch", "Whether to use local tree search when a solution is found", |
---|
2725 | "off", CBC_PARAM_STR_LOCALTREE); |
---|
2726 | p.append("on"); |
---|
2727 | p.setLonghelp( |
---|
2728 | "The heuristic is from Fischetti and Lodi and is not really a heuristic although it can be used as one \ |
---|
2729 | (with limited functionality). It is not switched on when heuristics are switched on."); |
---|
2730 | parameters.push_back(p); |
---|
2731 | } |
---|
2732 | #endif |
---|
2733 | { |
---|
2734 | #ifndef COIN_HAS_CBC |
---|
2735 | CbcOrClpParam p("log!Level", "Level of detail in Solver output", |
---|
2736 | -1, COIN_INT_MAX, CLP_PARAM_INT_SOLVERLOGLEVEL); |
---|
2737 | parameters.push_back(p); |
---|
2738 | #else |
---|
2739 | CbcOrClpParam p("log!Level", "Level of detail in Coin branch and Cut output", |
---|
2740 | -63, 63, CLP_PARAM_INT_LOGLEVEL); |
---|
2741 | p.setIntValue(1); |
---|
2742 | #endif |
---|
2743 | p.setLonghelp( |
---|
2744 | "If 0 then there should be no output in normal circumstances. 1 is probably the best\ |
---|
2745 | value for most uses, while 2 and 3 give more information."); |
---|
2746 | parameters.push_back(p); |
---|
2747 | } |
---|
2748 | { |
---|
2749 | CbcOrClpParam p("max!imize", "Set optimization direction to maximize", |
---|
2750 | CLP_PARAM_ACTION_MAXIMIZE, 7); |
---|
2751 | p.setLonghelp( |
---|
2752 | "The default is minimize - use 'maximize' for maximization.\n\ |
---|
2753 | You can also use the parameters 'direction maximize'."); |
---|
2754 | parameters.push_back(p); |
---|
2755 | } |
---|
2756 | #ifdef COIN_HAS_CLP |
---|
2757 | { |
---|
2758 | CbcOrClpParam p("maxF!actor", "Maximum number of iterations between \ |
---|
2759 | refactorizations", |
---|
2760 | 1, COIN_INT_MAX, CLP_PARAM_INT_MAXFACTOR); |
---|
2761 | p.setLonghelp( |
---|
2762 | "If this is left at its default value of 200 then CLP will guess a\ |
---|
2763 | value to use. CLP may decide to re-factorize earlier for accuracy."); |
---|
2764 | parameters.push_back(p); |
---|
2765 | } |
---|
2766 | { |
---|
2767 | CbcOrClpParam p("maxIt!erations", "Maximum number of iterations before \ |
---|
2768 | stopping", |
---|
2769 | 0, COIN_INT_MAX, CLP_PARAM_INT_MAXITERATION); |
---|
2770 | p.setLonghelp( |
---|
2771 | "This can be used for testing purposes. The corresponding library call\n\ |
---|
2772 | \tsetMaximumIterations(value)\n can be useful. If the code stops on\ |
---|
2773 | seconds or by an interrupt this will be treated as stopping on maximum iterations. This is ignored in branchAndCut - use maxN!odes."); |
---|
2774 | parameters.push_back(p); |
---|
2775 | } |
---|
2776 | #endif |
---|
2777 | #ifdef COIN_HAS_CBC |
---|
2778 | { |
---|
2779 | CbcOrClpParam p("maxN!odes", "Maximum number of nodes to do", |
---|
2780 | -1, COIN_INT_MAX, CBC_PARAM_INT_MAXNODES); |
---|
2781 | p.setLonghelp( |
---|
2782 | "This is a repeatable way to limit search. Normally using time is easier \ |
---|
2783 | but then the results may not be repeatable."); |
---|
2784 | parameters.push_back(p); |
---|
2785 | } |
---|
2786 | { |
---|
2787 | CbcOrClpParam p("maxSaved!Solutions", "Maximum number of solutions to save", |
---|
2788 | 0, COIN_INT_MAX, CBC_PARAM_INT_MAXSAVEDSOLS); |
---|
2789 | p.setLonghelp( |
---|
2790 | "Number of solutions to save."); |
---|
2791 | parameters.push_back(p); |
---|
2792 | } |
---|
2793 | { |
---|
2794 | CbcOrClpParam p("maxSo!lutions", "Maximum number of feasible solutions to get", |
---|
2795 | 1, COIN_INT_MAX, CBC_PARAM_INT_MAXSOLS); |
---|
2796 | p.setLonghelp( |
---|
2797 | "You may want to stop after (say) two solutions or an hour. \ |
---|
2798 | This is checked every node in tree, so it is possible to get more solutions from heuristics."); |
---|
2799 | parameters.push_back(p); |
---|
2800 | } |
---|
2801 | #endif |
---|
2802 | { |
---|
2803 | CbcOrClpParam p("min!imize", "Set optimization direction to minimize", |
---|
2804 | CLP_PARAM_ACTION_MINIMIZE, 7); |
---|
2805 | p.setLonghelp( |
---|
2806 | "The default is minimize - use 'maximize' for maximization.\n\ |
---|
2807 | This should only be necessary if you have previously set maximization \ |
---|
2808 | You can also use the parameters 'direction minimize'."); |
---|
2809 | parameters.push_back(p); |
---|
2810 | } |
---|
2811 | #ifdef COIN_HAS_CBC |
---|
2812 | { |
---|
2813 | CbcOrClpParam p("mipO!ptions", "Dubious options for mip", |
---|
2814 | 0, COIN_INT_MAX, CBC_PARAM_INT_MIPOPTIONS, 0); |
---|
2815 | p.setIntValue(1057); |
---|
2816 | parameters.push_back(p); |
---|
2817 | } |
---|
2818 | { |
---|
2819 | CbcOrClpParam p("more!MipOptions", "More dubious options for mip", |
---|
2820 | -1, COIN_INT_MAX, CBC_PARAM_INT_MOREMIPOPTIONS, 0); |
---|
2821 | parameters.push_back(p); |
---|
2822 | } |
---|
2823 | { |
---|
2824 | CbcOrClpParam p("more2!MipOptions", "More more dubious options for mip", |
---|
2825 | -1, COIN_INT_MAX, CBC_PARAM_INT_MOREMOREMIPOPTIONS, 0); |
---|
2826 | p.setIntValue(0); |
---|
2827 | parameters.push_back(p); |
---|
2828 | } |
---|
2829 | { |
---|
2830 | CbcOrClpParam p("mixed!IntegerRoundingCuts", "Whether to use Mixed Integer Rounding cuts", |
---|
2831 | "off", CBC_PARAM_STR_MIXEDCUTS); |
---|
2832 | |
---|
2833 | p.append("on"); |
---|
2834 | p.append("root"); |
---|
2835 | p.append("ifmove"); |
---|
2836 | p.append("forceOn"); |
---|
2837 | p.append("onglobal"); |
---|
2838 | p.setLonghelp(CUTS_LONGHELP |
---|
2839 | " Reference: https://github.com/coin-or/Cgl/wiki/CglMixedIntegerRounding2"); |
---|
2840 | parameters.push_back(p); |
---|
2841 | } |
---|
2842 | #endif |
---|
2843 | { |
---|
2844 | CbcOrClpParam p("mess!ages", "Controls if Clpnnnn is printed", |
---|
2845 | "off", CLP_PARAM_STR_MESSAGES); |
---|
2846 | |
---|
2847 | p.append("on"); |
---|
2848 | p.setLonghelp("The default behavior is to put out messages such as:\n\ |
---|
2849 | Clp0005 2261 Objective 109.024 Primal infeas 944413 (758)\n\ |
---|
2850 | but this program turns this off to make it look more friendly. It can be useful\ |
---|
2851 | to turn them back on if you want to be able to 'grep' for particular messages or if\ |
---|
2852 | you intend to override the behavior of a particular message. This only affects Clp not Cbc."); |
---|
2853 | parameters.push_back(p); |
---|
2854 | } |
---|
2855 | { |
---|
2856 | CbcOrClpParam p("miplib", "Do some of miplib test set", |
---|
2857 | CBC_PARAM_ACTION_MIPLIB, 3, 1); |
---|
2858 | parameters.push_back(p); |
---|
2859 | } |
---|
2860 | #ifdef COIN_HAS_CBC |
---|
2861 | { |
---|
2862 | CbcOrClpParam p("mips!tart", "reads an initial feasible solution from file", |
---|
2863 | CBC_PARAM_ACTION_MIPSTART); |
---|
2864 | p.setLonghelp("\ |
---|
2865 | The MIPStart allows one to enter an initial integer feasible solution \ |
---|
2866 | to CBC. Values of the main decision variables which are active (have \ |
---|
2867 | non-zero values) in this solution are specified in a text file. The \ |
---|
2868 | text file format used is the same of the solutions saved by CBC, but \ |
---|
2869 | not all fields are required to be filled. First line may contain the \ |
---|
2870 | solution status and will be ignored, remaining lines contain column \ |
---|
2871 | indexes, names and values as in this example:\n\ |
---|
2872 | \n\ |
---|
2873 | Stopped on iterations - objective value 57597.00000000\n\ |
---|
2874 | 0 x(1,1,2,2) 1 \n\ |
---|
2875 | 1 x(3,1,3,2) 1 \n\ |
---|
2876 | 5 v(5,1) 2 \n\ |
---|
2877 | 33 x(8,1,5,2) 1 \n\ |
---|
2878 | ...\n\ |
---|
2879 | \n\ |
---|
2880 | Column indexes are also ignored since pre-processing can change them. \ |
---|
2881 | There is no need to include values for continuous or integer auxiliary \ |
---|
2882 | variables, since they can be computed based on main decision variables. \ |
---|
2883 | Starting CBC with an integer feasible solution can dramatically improve \ |
---|
2884 | its performance: several MIP heuristics (e.g. RINS) rely on having at \ |
---|
2885 | least one feasible solution available and can start immediately if the \ |
---|
2886 | user provides one. Feasibility Pump (FP) is a heuristic which tries to \ |
---|
2887 | overcome the problem of taking too long to find feasible solution (or \ |
---|
2888 | not finding at all), but it not always succeeds. If you provide one \ |
---|
2889 | starting solution you will probably save some time by disabling FP. \ |
---|
2890 | \n\n\ |
---|
2891 | Knowledge specific to your problem can be considered to write an \ |
---|
2892 | external module to quickly produce an initial feasible solution - some \ |
---|
2893 | alternatives are the implementation of simple greedy heuristics or the \ |
---|
2894 | solution (by CBC for example) of a simpler model created just to find \ |
---|
2895 | a feasible solution. \ |
---|
2896 | \n\n\ |
---|
2897 | Silly options added. If filename ends .low then integers not mentioned \ |
---|
2898 | are set low - also .high, .lowcheap, .highcheap, .lowexpensive, .highexpensive \ |
---|
2899 | where .lowexpensive sets costed ones to make expensive others low. Also if \ |
---|
2900 | filename starts empty. then no file is read at all - just actions done. \ |
---|
2901 | \n\n\ |
---|
2902 | Question and suggestions regarding MIPStart can be directed to\n\ |
---|
2903 | haroldo.santos@gmail.com. "); |
---|
2904 | parameters.push_back(p); |
---|
2905 | } |
---|
2906 | #endif |
---|
2907 | { |
---|
2908 | CbcOrClpParam p("moreS!pecialOptions", "Yet more dubious options for Simplex - see ClpSimplex.hpp", |
---|
2909 | 0, COIN_INT_MAX, CLP_PARAM_INT_MORESPECIALOPTIONS, 0); |
---|
2910 | parameters.push_back(p); |
---|
2911 | } |
---|
2912 | #ifdef COIN_HAS_CBC |
---|
2913 | { |
---|
2914 | CbcOrClpParam p("moreT!une", "Yet more dubious ideas for feasibility pump", |
---|
2915 | 0, 100000000, CBC_PARAM_INT_FPUMPTUNE2, 0); |
---|
2916 | |
---|
2917 | p.setLonghelp( |
---|
2918 | "Yet more ideas for Feasibility Pump \n\ |
---|
2919 | \t/100000 == 1 use box constraints and original obj in cleanup\n\ |
---|
2920 | \t/1000 == 1 Pump will run twice if no solution found\n\ |
---|
2921 | \t/1000 == 2 Pump will only run after root cuts if no solution found\n\ |
---|
2922 | \t/1000 >10 as above but even if solution found\n\ |
---|
2923 | \t/100 == 1,3.. exact 1.0 for objective values\n\ |
---|
2924 | \t/100 == 2,3.. allow more iterations per pass\n\ |
---|
2925 | \t n fix if value of variable same for last n iterations."); |
---|
2926 | p.setIntValue(0); |
---|
2927 | parameters.push_back(p); |
---|
2928 | } |
---|
2929 | { |
---|
2930 | CbcOrClpParam p("multiple!RootPasses", "Do multiple root passes to collect cuts and solutions", |
---|
2931 | 0, COIN_INT_MAX, CBC_PARAM_INT_MULTIPLEROOTS, 0); |
---|
2932 | p.setIntValue(0); |
---|
2933 | p.setLonghelp( |
---|
2934 | "Solve (in parallel, if enabled) the root phase this number of times, \ |
---|
2935 | each with its own different seed, and collect all solutions and cuts generated. \ |
---|
2936 | The actual format is aabbcc where aa is the number of extra passes; \ |
---|
2937 | if bb is non zero, then it is number of threads to use (otherwise uses threads setting); \ |
---|
2938 | and cc is the number of times to do root phase. \ |
---|
2939 | The solvers do not interact with each other. However if extra passes are specified \ |
---|
2940 | then cuts are collected and used in later passes - so there is interaction there. \ |
---|
2941 | Some parts of this implementation have their origin in idea of \ |
---|
2942 | Andrea Lodi, Matteo Fischetti, Michele Monaci, Domenico Salvagnin, and Andrea Tramontani."); |
---|
2943 | parameters.push_back(p); |
---|
2944 | } |
---|
2945 | { |
---|
2946 | CbcOrClpParam p("naive!Heuristics", "Whether to try some stupid heuristic", |
---|
2947 | "off", CBC_PARAM_STR_NAIVE, 7, 1); |
---|
2948 | |
---|
2949 | p.append("on"); |
---|
2950 | p.append("both"); |
---|
2951 | p.append("before"); |
---|
2952 | p.setLonghelp( |
---|
2953 | "This is naive heuristics which, e.g., fix all integers with costs to zero!. " |
---|
2954 | HEURISTICS_LONGHELP); |
---|
2955 | parameters.push_back(p); |
---|
2956 | } |
---|
2957 | #endif |
---|
2958 | #ifdef COIN_HAS_CLP |
---|
2959 | { |
---|
2960 | CbcOrClpParam p("netlib", "Solve entire netlib test set", |
---|
2961 | CLP_PARAM_ACTION_NETLIB_EITHER, 3, 1); |
---|
2962 | p.setLonghelp( |
---|
2963 | "This exercises the unit test for clp and then solves the netlib test set using dual or primal.\ |
---|
2964 | The user can set options before e.g. clp -presolve off -netlib"); |
---|
2965 | parameters.push_back(p); |
---|
2966 | } |
---|
2967 | { |
---|
2968 | CbcOrClpParam p("netlibB!arrier", "Solve entire netlib test set with barrier", |
---|
2969 | CLP_PARAM_ACTION_NETLIB_BARRIER, 3, 1); |
---|
2970 | p.setLonghelp( |
---|
2971 | "This exercises the unit test for clp and then solves the netlib test set using barrier.\ |
---|
2972 | The user can set options before e.g. clp -kkt on -netlib"); |
---|
2973 | parameters.push_back(p); |
---|
2974 | } |
---|
2975 | { |
---|
2976 | CbcOrClpParam p("netlibD!ual", "Solve entire netlib test set (dual)", |
---|
2977 | CLP_PARAM_ACTION_NETLIB_DUAL, 3, 1); |
---|
2978 | |
---|
2979 | p.setLonghelp( |
---|
2980 | "This exercises the unit test for clp and then solves the netlib test set using dual.\ |
---|
2981 | The user can set options before e.g. clp -presolve off -netlib"); |
---|
2982 | parameters.push_back(p); |
---|
2983 | } |
---|
2984 | { |
---|
2985 | CbcOrClpParam p("netlibP!rimal", "Solve entire netlib test set (primal)", |
---|
2986 | CLP_PARAM_ACTION_NETLIB_PRIMAL, 3, 1); |
---|
2987 | p.setLonghelp( |
---|
2988 | "This exercises the unit test for clp and then solves the netlib test set using primal.\ |
---|
2989 | The user can set options before e.g. clp -presolve off -netlibp"); |
---|
2990 | parameters.push_back(p); |
---|
2991 | } |
---|
2992 | { |
---|
2993 | CbcOrClpParam p("netlibT!une", "Solve entire netlib test set with 'best' algorithm", |
---|
2994 | CLP_PARAM_ACTION_NETLIB_TUNE, 3, 1); |
---|
2995 | p.setLonghelp( |
---|
2996 | "This exercises the unit test for clp and then solves the netlib test set using whatever \ |
---|
2997 | works best. I know this is cheating but it also stresses the code better by doing a \ |
---|
2998 | mixture of stuff. The best algorithm was chosen on a Linux ThinkPad using native cholesky \ |
---|
2999 | with University of Florida ordering."); |
---|
3000 | parameters.push_back(p); |
---|
3001 | } |
---|
3002 | { |
---|
3003 | CbcOrClpParam p("network", "Tries to make network matrix", |
---|
3004 | CLP_PARAM_ACTION_NETWORK, 7, 0); |
---|
3005 | p.setLonghelp( |
---|
3006 | "Clp will go faster if the matrix can be converted to a network. The matrix\ |
---|
3007 | operations may be a bit faster with more efficient storage, but the main advantage\ |
---|
3008 | comes from using a network factorization. It will probably not be as fast as a \ |
---|
3009 | specialized network code."); |
---|
3010 | parameters.push_back(p); |
---|
3011 | } |
---|
3012 | #ifdef COIN_HAS_CBC |
---|
3013 | { |
---|
3014 | CbcOrClpParam p("nextB!estSolution", "Prints next best saved solution to file", |
---|
3015 | CLP_PARAM_ACTION_NEXTBESTSOLUTION); |
---|
3016 | |
---|
3017 | p.setLonghelp( |
---|
3018 | "To write best solution, just use solution. This prints next best (if exists) \ |
---|
3019 | and then deletes it. \ |
---|
3020 | This will write a primitive solution file to the given file name. It will use the default\ |
---|
3021 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3022 | is initialized to 'stdout'. The amount of output can be varied using printi!ngOptions or printMask."); |
---|
3023 | parameters.push_back(p); |
---|
3024 | } |
---|
3025 | { |
---|
3026 | CbcOrClpParam p("node!Strategy", "What strategy to use to select the next node from the branch and cut tree", |
---|
3027 | "hybrid", CBC_PARAM_STR_NODESTRATEGY); |
---|
3028 | p.append("fewest"); |
---|
3029 | p.append("depth"); |
---|
3030 | p.append("upfewest"); |
---|
3031 | p.append("downfewest"); |
---|
3032 | p.append("updepth"); |
---|
3033 | p.append("downdepth"); |
---|
3034 | p.setLonghelp( |
---|
3035 | "Normally before a feasible solution is found, CBC will choose a node with fewest infeasibilities. \ |
---|
3036 | Alternatively, one may choose tree-depth as the criterion. This requires the minimal amount of memory, but may take a long time to find the best solution.\ |
---|
3037 | Additionally, one may specify whether up or down branches must \ |
---|
3038 | be selected first (the up-down choice will carry on after a first solution has been bound). \ |
---|
3039 | The default choice 'hybrid' does breadth first on small depth nodes and then switches to 'fewest'."); |
---|
3040 | parameters.push_back(p); |
---|
3041 | } |
---|
3042 | { |
---|
3043 | CbcOrClpParam p("numberA!nalyze", "Number of analysis iterations", |
---|
3044 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_NUMBERANALYZE, 0); |
---|
3045 | p.setLonghelp( |
---|
3046 | "This says how many iterations to spend at root node analyzing problem. \ |
---|
3047 | This is a first try and will hopefully become more sophisticated."); |
---|
3048 | parameters.push_back(p); |
---|
3049 | } |
---|
3050 | #endif |
---|
3051 | { |
---|
3052 | CbcOrClpParam p("objective!Scale", "Scale factor to apply to objective", |
---|
3053 | -COIN_DBL_MAX, COIN_DBL_MAX, CLP_PARAM_DBL_OBJSCALE, 1); |
---|
3054 | p.setLonghelp( |
---|
3055 | "If the objective function has some very large values, you may wish to scale them\ |
---|
3056 | internally by this amount. It can also be set by autoscale. It is applied after scaling. You are unlikely to need this."); |
---|
3057 | p.setDoubleValue(1.0); |
---|
3058 | parameters.push_back(p); |
---|
3059 | } |
---|
3060 | #endif |
---|
3061 | #ifdef COIN_HAS_CBC |
---|
3062 | #ifdef COIN_HAS_NTY |
---|
3063 | { |
---|
3064 | CbcOrClpParam p("Orbit!alBranching", "Whether to try orbital branching", |
---|
3065 | "off", CBC_PARAM_STR_ORBITAL); |
---|
3066 | p.append("on"); |
---|
3067 | p.append("strong"); |
---|
3068 | p.append("force"); |
---|
3069 | p.append("simple"); |
---|
3070 | p.setLonghelp( |
---|
3071 | "This switches on Orbital branching. \ |
---|
3072 | Value 'on' just adds orbital, 'strong' tries extra fixing in strong branching."); |
---|
3073 | parameters.push_back(p); |
---|
3074 | } |
---|
3075 | #endif |
---|
3076 | { |
---|
3077 | CbcOrClpParam p("PrepN!ames", "If column names will be kept in pre-processed model", |
---|
3078 | "off", CBC_PARAM_STR_PREPROCNAMES); |
---|
3079 | p.append("on"); |
---|
3080 | p.setLonghelp( |
---|
3081 | "Normally the preprocessed model has column names replaced by new names C0000...\ |
---|
3082 | Setting this option to on keeps original names in variables which still exist in the preprocessed problem"); |
---|
3083 | parameters.push_back(p); |
---|
3084 | } |
---|
3085 | |
---|
3086 | { |
---|
3087 | CbcOrClpParam p("outDup!licates", "takes duplicate rows etc out of integer model", |
---|
3088 | CLP_PARAM_ACTION_OUTDUPROWS, 7, 0); |
---|
3089 | parameters.push_back(p); |
---|
3090 | } |
---|
3091 | #endif |
---|
3092 | { |
---|
3093 | CbcOrClpParam p("output!Format", "Which output format to use", |
---|
3094 | 1, 6, CLP_PARAM_INT_OUTPUTFORMAT); |
---|
3095 | p.setLonghelp( |
---|
3096 | "Normally export will be done using normal representation for numbers and two values\ |
---|
3097 | per line. You may want to do just one per line (for grep or suchlike) and you may wish\ |
---|
3098 | to save with absolute accuracy using a coded version of the IEEE value. A value of 2 is normal.\ |
---|
3099 | otherwise odd values gives one value per line, even two. Values 1,2 give normal format, 3,4\ |
---|
3100 | gives greater precision, while 5,6 give IEEE values. When used for exporting a basis 1 does not save \ |
---|
3101 | values, 2 saves values, 3 with greater accuracy and 4 in IEEE."); |
---|
3102 | parameters.push_back(p); |
---|
3103 | } |
---|
3104 | #ifdef COIN_HAS_CLP |
---|
3105 | { |
---|
3106 | CbcOrClpParam p("para!metrics", "Import data from file and do parametrics", |
---|
3107 | CLP_PARAM_ACTION_PARAMETRICS, 3); |
---|
3108 | p.setLonghelp( |
---|
3109 | "This will read a file with parametric data from the given file name \ |
---|
3110 | and then do parametrics. It will use the default\ |
---|
3111 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3112 | is initialized to '', i.e. it must be set. This can not read from compressed files. \ |
---|
3113 | File is in modified csv format - a line ROWS will be followed by rows data \ |
---|
3114 | while a line COLUMNS will be followed by column data. The last line \ |
---|
3115 | should be ENDATA. The ROWS line must exist and is in the format \ |
---|
3116 | ROWS, inital theta, final theta, interval theta, n where n is 0 to get \ |
---|
3117 | CLPI0062 message at interval or at each change of theta \ |
---|
3118 | and 1 to get CLPI0063 message at each iteration. If interval theta is 0.0 \ |
---|
3119 | or >= final theta then no interval reporting. n may be missed out when it is \ |
---|
3120 | taken as 0. If there is Row data then \ |
---|
3121 | there is a headings line with allowed headings - name, number, \ |
---|
3122 | lower(rhs change), upper(rhs change), rhs(change). Either the lower and upper \ |
---|
3123 | fields should be given or the rhs field. \ |
---|
3124 | The optional COLUMNS line is followed by a headings line with allowed \ |
---|
3125 | headings - name, number, objective(change), lower(change), upper(change). \ |
---|
3126 | Exactly one of name and number must be given for either section and \ |
---|
3127 | missing ones have value 0.0."); |
---|
3128 | parameters.push_back(p); |
---|
3129 | } |
---|
3130 | #endif |
---|
3131 | #ifdef COIN_HAS_CBC |
---|
3132 | { |
---|
3133 | CbcOrClpParam p("passC!uts", "Number of rounds that cut generators are applied in the root node", |
---|
3134 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_CUTPASS); |
---|
3135 | |
---|
3136 | p.setIntValue(20); |
---|
3137 | p.setLonghelp( |
---|
3138 | "The default is to do 100 passes if the problem has less than 500 columns, 100 passes (but \ |
---|
3139 | stop if the drop in the objective function value is small) if the problem has less than 5000 columns, and 20 passes otherwise. \ |
---|
3140 | A negative value -n means that n passes are also applied if the objective does not drop."); |
---|
3141 | parameters.push_back(p); |
---|
3142 | } |
---|
3143 | { |
---|
3144 | CbcOrClpParam p("passF!easibilityPump", "How many passes to do in the Feasibility Pump heuristic", |
---|
3145 | 0, 10000, CBC_PARAM_INT_FPUMPITS); |
---|
3146 | p.setIntValue(20); |
---|
3147 | parameters.push_back(p); |
---|
3148 | } |
---|
3149 | #endif |
---|
3150 | #ifdef COIN_HAS_CLP |
---|
3151 | { |
---|
3152 | CbcOrClpParam p("passP!resolve", "How many passes in presolve", |
---|
3153 | -200, 100, CLP_PARAM_INT_PRESOLVEPASS, 1); |
---|
3154 | p.setLonghelp( |
---|
3155 | "Normally Presolve does 10 passes but you may want to do less to make it\ |
---|
3156 | more lightweight or do more if improvements are still being made. As Presolve will return\ |
---|
3157 | if nothing is being taken out, you should not normally need to use this fine tuning."); |
---|
3158 | parameters.push_back(p); |
---|
3159 | } |
---|
3160 | #endif |
---|
3161 | #ifdef COIN_HAS_CBC |
---|
3162 | { |
---|
3163 | CbcOrClpParam p("passT!reeCuts", "Number of rounds that cut generators are applied in the tree", |
---|
3164 | -COIN_INT_MAX, COIN_INT_MAX, CBC_PARAM_INT_CUTPASSINTREE); |
---|
3165 | p.setIntValue(1); |
---|
3166 | p.setLonghelp("The default is to do one pass. A negative value -n means that n passes are also applied if the objective does not drop."); |
---|
3167 | parameters.push_back(p); |
---|
3168 | } |
---|
3169 | #endif |
---|
3170 | #ifdef COIN_HAS_CLP |
---|
3171 | { |
---|
3172 | CbcOrClpParam p("pertV!alue", "Method of perturbation", |
---|
3173 | -5000, 102, CLP_PARAM_INT_PERTVALUE, 1); |
---|
3174 | parameters.push_back(p); |
---|
3175 | } |
---|
3176 | { |
---|
3177 | CbcOrClpParam p("perturb!ation", "Whether to perturb the problem", |
---|
3178 | "on", CLP_PARAM_STR_PERTURBATION); |
---|
3179 | p.append("off"); |
---|
3180 | p.setLonghelp( |
---|
3181 | "Perturbation helps to stop cycling, but CLP uses other measures for this.\ |
---|
3182 | However, large problems and especially ones with unit elements and unit right hand sides or costs\ |
---|
3183 | benefit from perturbation. Normally CLP tries to be intelligent, but one can switch this off."); |
---|
3184 | // The Clp library has this off by default. This program has it on by default. |
---|
3185 | parameters.push_back(p); |
---|
3186 | } |
---|
3187 | { |
---|
3188 | CbcOrClpParam p("PFI", "Whether to use Product Form of Inverse in simplex", |
---|
3189 | "off", CLP_PARAM_STR_PFI, 7, 0); |
---|
3190 | p.append("on"); |
---|
3191 | p.setLonghelp( |
---|
3192 | "By default clp uses Forrest-Tomlin L-U update. If you are masochistic you can switch it off."); |
---|
3193 | parameters.push_back(p); |
---|
3194 | } |
---|
3195 | #endif |
---|
3196 | #ifdef COIN_HAS_CBC |
---|
3197 | { |
---|
3198 | CbcOrClpParam p("pivotAndC!omplement", "Whether to try Pivot and Complement heuristic", |
---|
3199 | "off", CBC_PARAM_STR_PIVOTANDCOMPLEMENT); |
---|
3200 | |
---|
3201 | p.append("on"); |
---|
3202 | p.append("both"); |
---|
3203 | p.append("before"); |
---|
3204 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
3205 | parameters.push_back(p); |
---|
3206 | } |
---|
3207 | { |
---|
3208 | CbcOrClpParam p("pivotAndF!ix", "Whether to try Pivot and Fix heuristic", |
---|
3209 | "off", CBC_PARAM_STR_PIVOTANDFIX); |
---|
3210 | p.append("on"); |
---|
3211 | p.append("both"); |
---|
3212 | p.append("before"); |
---|
3213 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
3214 | parameters.push_back(p); |
---|
3215 | } |
---|
3216 | #endif |
---|
3217 | #ifdef COIN_HAS_CLP |
---|
3218 | { |
---|
3219 | CbcOrClpParam p("plus!Minus", "Tries to make +- 1 matrix", |
---|
3220 | CLP_PARAM_ACTION_PLUSMINUS, 7, 0); |
---|
3221 | p.setLonghelp( |
---|
3222 | "Clp will go slightly faster if the matrix can be converted so that the elements are\ |
---|
3223 | not stored and are known to be unit. The main advantage is memory use. Clp may automatically\ |
---|
3224 | see if it can convert the problem so you should not need to use this."); |
---|
3225 | parameters.push_back(p); |
---|
3226 | } |
---|
3227 | { |
---|
3228 | CbcOrClpParam p("pO!ptions", "Dubious print options", |
---|
3229 | 0, COIN_INT_MAX, CLP_PARAM_INT_PRINTOPTIONS, 1); |
---|
3230 | p.setIntValue(0); |
---|
3231 | p.setLonghelp( |
---|
3232 | "If this is > 0 then presolve will give more information and branch and cut will give statistics"); |
---|
3233 | parameters.push_back(p); |
---|
3234 | } |
---|
3235 | { |
---|
3236 | CbcOrClpParam p("preO!pt", "Presolve options", |
---|
3237 | 0, COIN_INT_MAX, CLP_PARAM_INT_PRESOLVEOPTIONS, 0); |
---|
3238 | parameters.push_back(p); |
---|
3239 | } |
---|
3240 | #endif |
---|
3241 | { |
---|
3242 | CbcOrClpParam p("presolve", "Whether to presolve problem", |
---|
3243 | "on", CLP_PARAM_STR_PRESOLVE); |
---|
3244 | p.append("off"); |
---|
3245 | p.append("more"); |
---|
3246 | p.append("file"); |
---|
3247 | p.setLonghelp("Presolve analyzes the model to find such things as redundant equations, equations\ |
---|
3248 | which fix some variables, equations which can be transformed into bounds, etc. For the\ |
---|
3249 | initial solve of any problem this is worth doing unless one knows that it will have no effect. \ |
---|
3250 | Option 'on' will normally do 5 passes, while using 'more' will do 10. If the problem is very large one can \ |
---|
3251 | let CLP write the original problem to file by using 'file'."); |
---|
3252 | parameters.push_back(p); |
---|
3253 | } |
---|
3254 | #ifdef COIN_HAS_CBC |
---|
3255 | { |
---|
3256 | CbcOrClpParam p("preprocess", "Whether to use integer preprocessing", |
---|
3257 | "off", CBC_PARAM_STR_PREPROCESS); |
---|
3258 | |
---|
3259 | p.append("on"); |
---|
3260 | p.append("save"); |
---|
3261 | p.append("equal"); |
---|
3262 | p.append("sos"); |
---|
3263 | p.append("trysos"); |
---|
3264 | p.append("equalall"); |
---|
3265 | p.append("strategy"); |
---|
3266 | p.append("aggregate"); |
---|
3267 | p.append("forcesos"); |
---|
3268 | p.append("stop!aftersaving"); |
---|
3269 | p.setLonghelp( |
---|
3270 | "This tries to reduce size of model in a similar way to presolve and \ |
---|
3271 | it also tries to strengthen the model - this can be very useful and is worth trying. \ |
---|
3272 | Value 'save' saves the presolved problem to a file presolved.mps.\ |
---|
3273 | Value 'equal' will turn inequality-cliques into equalities.\ |
---|
3274 | Value 'sos' lets CBC search for rows with upper bound 1 and where all nonzero coefficients are 1 and creates special ordered sets if the sets are not overlapping and all integer variables (except for at most one) are in the sets.\ |
---|
3275 | Value 'trysos' is same as 'sos', but allows any number of integer variables outside of sets.\ |
---|
3276 | Value 'equalall' lets CBC turn all valid inequalities into equalities by adding integer slack variables."); // Value 'strategy' is as on but uses CbcStrategy. |
---|
3277 | parameters.push_back(p); |
---|
3278 | } |
---|
3279 | #endif |
---|
3280 | #ifdef COIN_HAS_CLP |
---|
3281 | { |
---|
3282 | CbcOrClpParam p("preT!olerance", "Tolerance to use in presolve", |
---|
3283 | 1.0e-20, COIN_DBL_MAX, CLP_PARAM_DBL_PRESOLVETOLERANCE); |
---|
3284 | p.setLonghelp( |
---|
3285 | "One may want to increase this tolerance if presolve says the problem is \ |
---|
3286 | infeasible and one has awkward numbers and is sure that the problem is really feasible."); |
---|
3287 | parameters.push_back(p); |
---|
3288 | } |
---|
3289 | { |
---|
3290 | CbcOrClpParam p("primalP!ivot", "Primal pivot choice algorithm", |
---|
3291 | "auto!matic", CLP_PARAM_STR_PRIMALPIVOT, 7, 1); |
---|
3292 | |
---|
3293 | p.append("exa!ct"); |
---|
3294 | p.append("dant!zig"); |
---|
3295 | p.append("part!ial"); |
---|
3296 | p.append("steep!est"); |
---|
3297 | p.append("change"); |
---|
3298 | p.append("sprint"); |
---|
3299 | p.append("PEsteep!est"); |
---|
3300 | p.append("PEdantzig"); |
---|
3301 | p.setLonghelp( |
---|
3302 | "The Dantzig method is simple but its use is deprecated. Exact devex is the method of choice and there\ |
---|
3303 | are two variants which keep all weights updated but only scan a subset each iteration.\ |
---|
3304 | Partial switches this on while 'change' initially does 'dantzig' until the factorization\ |
---|
3305 | becomes denser. This is still a work in progress.\ |
---|
3306 | The PE variants add the Positive Edge criterion.\ |
---|
3307 | This selects incoming variables to try to avoid degenerate moves. \ |
---|
3308 | See also Towhidi, M., Desrosiers, J., Soumis, F., The positive edge criterion within COIN-OR's CLP;\ |
---|
3309 | Omer, J., Towhidi, M., Soumis, F., The positive edge pricing rule for the dual simplex."); |
---|
3310 | |
---|
3311 | parameters.push_back(p); |
---|
3312 | } |
---|
3313 | { |
---|
3314 | CbcOrClpParam p("primalS!implex", "Do primal simplex algorithm", |
---|
3315 | CLP_PARAM_ACTION_PRIMALSIMPLEX); |
---|
3316 | |
---|
3317 | p.setLonghelp( |
---|
3318 | "This command solves the continuous relaxation of the current model using the primal algorithm.\ |
---|
3319 | The default is to use exact devex.\ |
---|
3320 | The time and iterations may be affected by settings such as presolve, scaling, crash\ |
---|
3321 | and also by column selection method, infeasibility weight and dual and primal tolerances."); |
---|
3322 | parameters.push_back(p); |
---|
3323 | } |
---|
3324 | #endif |
---|
3325 | { |
---|
3326 | CbcOrClpParam p("primalT!olerance", "For a feasible solution \ |
---|
3327 | no primal infeasibility, i.e., constraint violation, may exceed this value", |
---|
3328 | 1.0e-20, COIN_DBL_MAX, CLP_PARAM_DBL_PRIMALTOLERANCE); |
---|
3329 | p.setLonghelp( |
---|
3330 | "Normally the default tolerance is fine, but one may want to increase it a\ |
---|
3331 | bit if the primal simplex algorithm seems to be having a hard time."); |
---|
3332 | parameters.push_back(p); |
---|
3333 | } |
---|
3334 | #ifdef COIN_HAS_CLP |
---|
3335 | { |
---|
3336 | CbcOrClpParam p("primalW!eight", "Initially algorithm acts as if it \ |
---|
3337 | costs this much to be infeasible", |
---|
3338 | 1.0e-20, COIN_DBL_MAX, CLP_PARAM_DBL_PRIMALWEIGHT); |
---|
3339 | p.setLonghelp( |
---|
3340 | "The primal algorithm in Clp is a single phase algorithm as opposed to a two phase\ |
---|
3341 | algorithm where you first get feasible then optimal. So Clp is minimizing this weight times\ |
---|
3342 | the sum of primal infeasibilities plus the true objective function (in minimization sense).\ |
---|
3343 | Too high a value may mean more iterations, while too low a value means\ |
---|
3344 | the algorithm may iterate into the wrong directory for long and then has to increase the weight in order to get feasible."); // OSL had a heuristic to adjust bounds, maybe we need that here. |
---|
3345 | parameters.push_back(p); |
---|
3346 | } |
---|
3347 | { |
---|
3348 | CbcOrClpParam p("psi", "Two-dimension pricing factor for Positive Edge criterion", |
---|
3349 | -1.1, 1.1, CLP_PARAM_DBL_PSI); |
---|
3350 | |
---|
3351 | p.setDoubleValue(-0.5); |
---|
3352 | p.setLonghelp( |
---|
3353 | "The Positive Edge criterion has been added to \ |
---|
3354 | select incoming variables to try and avoid degenerate moves. \ |
---|
3355 | Variables not in the promising set have their infeasibility weight multiplied by psi, \ |
---|
3356 | so 0.01 would mean that if there were any promising variables, then they would always be chosen, \ |
---|
3357 | while 1.0 effectively switches the algorithm off. \ |
---|
3358 | There are two ways of switching this feature on. One way is to set psi to a positive value and then \ |
---|
3359 | the Positive Edge criterion will be used for both primal and dual simplex. The other way is to select PEsteepest \ |
---|
3360 | in dualpivot choice (for example), then the absolute value of psi is used. \ |
---|
3361 | Code donated by Jeremy Omer. See \ |
---|
3362 | Towhidi, M., Desrosiers, J., Soumis, F., The positive edge criterion within COIN-OR's CLP; \ |
---|
3363 | Omer, J., Towhidi, M., Soumis, F., The positive edge pricing rule for the dual simplex."); // Until this settles down it is only implemented in CLP. |
---|
3364 | parameters.push_back(p); |
---|
3365 | } |
---|
3366 | #endif |
---|
3367 | { |
---|
3368 | CbcOrClpParam p("printi!ngOptions", "Print options", |
---|
3369 | "normal", CLP_PARAM_STR_INTPRINT, 3); |
---|
3370 | p.append("integer"); |
---|
3371 | p.append("special"); |
---|
3372 | p.append("rows"); |
---|
3373 | p.append("all"); |
---|
3374 | p.append("csv"); |
---|
3375 | p.append("bound!ranging"); |
---|
3376 | p.append("rhs!ranging"); |
---|
3377 | p.append("objective!ranging"); |
---|
3378 | p.append("stats"); |
---|
3379 | p.append("boundsint"); |
---|
3380 | p.append("boundsall"); |
---|
3381 | p.append("fixint"); |
---|
3382 | p.append("fixall"); |
---|
3383 | p.setLonghelp( |
---|
3384 | "This changes the amount and format of printing a solution:\nnormal - nonzero column variables \n\ |
---|
3385 | integer - nonzero integer column variables\n\ |
---|
3386 | special - in format suitable for OsiRowCutDebugger\n\ |
---|
3387 | rows - nonzero column variables and row activities\n\ |
---|
3388 | all - all column variables and row activities.\n\ |
---|
3389 | \nFor non-integer problems 'integer' and 'special' act like 'normal'. \ |
---|
3390 | Also see printMask for controlling output."); |
---|
3391 | parameters.push_back(p); |
---|
3392 | } |
---|
3393 | { |
---|
3394 | CbcOrClpParam p("printM!ask", "Control printing of solution on a mask", |
---|
3395 | CLP_PARAM_ACTION_PRINTMASK, 3); |
---|
3396 | |
---|
3397 | p.setLonghelp( |
---|
3398 | "If set then only those names which match mask are printed in a solution. \ |
---|
3399 | '?' matches any character and '*' matches any set of characters. \ |
---|
3400 | The default is '' i.e. unset so all variables are printed. \ |
---|
3401 | This is only active if model has names."); |
---|
3402 | parameters.push_back(p); |
---|
3403 | } |
---|
3404 | |
---|
3405 | #ifdef COIN_HAS_CBC |
---|
3406 | { |
---|
3407 | CbcOrClpParam p("prio!rityIn", "Import priorities etc from file", |
---|
3408 | CBC_PARAM_ACTION_PRIORITYIN, 3); |
---|
3409 | p.setLonghelp( |
---|
3410 | "This will read a file with priorities from the given file name. It will use the default\ |
---|
3411 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3412 | is initialized to '', i.e. it must be set. This can not read from compressed files. \ |
---|
3413 | File is in csv format with allowed headings - name, number, priority, direction, up, down, solution. Exactly one of\ |
---|
3414 | name and number must be given."); |
---|
3415 | parameters.push_back(p); |
---|
3416 | } |
---|
3417 | |
---|
3418 | { |
---|
3419 | CbcOrClpParam p("probing!Cuts", "Whether to use Probing cuts", |
---|
3420 | "off", CBC_PARAM_STR_PROBINGCUTS); |
---|
3421 | p.append("on"); |
---|
3422 | p.append("root"); |
---|
3423 | p.append("ifmove"); |
---|
3424 | p.append("forceOn"); |
---|
3425 | p.append("onglobal"); |
---|
3426 | p.append("forceonglobal"); |
---|
3427 | p.append("forceOnBut"); |
---|
3428 | p.append("forceOnStrong"); |
---|
3429 | p.append("forceOnButStrong"); |
---|
3430 | p.append("strongRoot"); |
---|
3431 | p.setLonghelp(CUTS_LONGHELP |
---|
3432 | " Value 'forceOnBut' turns on probing and forces CBC to do probing at every node, but does only probing, not strengthening etc. \ |
---|
3433 | Value 'strong' forces CBC to strongly do probing at every node, that is, also when CBC would usually turn it off because it hasn't found something. \ |
---|
3434 | Value 'forceonbutstrong' is like 'forceonstrong', but does only probing (column fixing) and turns off row strengthening, so the matrix will not change inside the branch and bound. \ |
---|
3435 | Reference: https://github.com/coin-or/Cgl/wiki/CglProbing"); |
---|
3436 | parameters.push_back(p); |
---|
3437 | } |
---|
3438 | { |
---|
3439 | CbcOrClpParam p("proximity!Search", "Whether to do proximity search heuristic", |
---|
3440 | "off", CBC_PARAM_STR_PROXIMITY); |
---|
3441 | |
---|
3442 | p.append("on"); |
---|
3443 | p.append("both"); |
---|
3444 | p.append("before"); |
---|
3445 | p.append("10"); |
---|
3446 | p.append("100"); |
---|
3447 | p.append("300"); |
---|
3448 | // but allow numbers after this (returning 1) |
---|
3449 | p.setFakeKeyWord(1); |
---|
3450 | p.setLonghelp( |
---|
3451 | "This heuristic looks for a solution close to the incumbent solution (Fischetti and Monaci, 2012). \ |
---|
3452 | The idea is to define a sub-MIP without additional constraints but with a modified objective function intended to attract the search \ |
---|
3453 | in the proximity of the incumbent. \ |
---|
3454 | The approach works well for 0-1 MIPs whose solution landscape is not too irregular (meaning the there is reasonable probability of \ |
---|
3455 | finding an improved solution by flipping a small number of binary variables), in particular when it is applied to the first heuristic solutions \ |
---|
3456 | found at the root node. " |
---|
3457 | HEURISTICS_LONGHELP); // Can also set different maxNode settings by plusnnnn (and are 'on'(on==30)). |
---|
3458 | parameters.push_back(p); |
---|
3459 | } |
---|
3460 | { |
---|
3461 | CbcOrClpParam p("pumpC!utoff", "Fake cutoff for use in feasibility pump", |
---|
3462 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_FAKECUTOFF); |
---|
3463 | p.setDoubleValue(0.0); |
---|
3464 | p.setLonghelp( |
---|
3465 | "A value of 0.0 means off. Otherwise, add a constraint forcing objective below this value\ |
---|
3466 | in feasibility pump"); |
---|
3467 | parameters.push_back(p); |
---|
3468 | } |
---|
3469 | { |
---|
3470 | CbcOrClpParam p("pumpI!ncrement", "Fake increment for use in feasibility pump", |
---|
3471 | -COIN_DBL_MAX, COIN_DBL_MAX, CBC_PARAM_DBL_FAKEINCREMENT, 1); |
---|
3472 | p.setDoubleValue(0.0); |
---|
3473 | p.setLonghelp( |
---|
3474 | "A value of 0.0 means off. Otherwise use as absolute increment to cutoff \ |
---|
3475 | when solution found in feasibility pump"); |
---|
3476 | parameters.push_back(p); |
---|
3477 | } |
---|
3478 | { |
---|
3479 | CbcOrClpParam p("pumpT!une", "Dubious ideas for feasibility pump", |
---|
3480 | 0, 100000000, CBC_PARAM_INT_FPUMPTUNE); |
---|
3481 | p.setIntValue(1003); |
---|
3482 | p.setLonghelp( |
---|
3483 | "This fine tunes Feasibility Pump \n\ |
---|
3484 | \t>=10000000 use as objective weight switch\n\ |
---|
3485 | \t>=1000000 use as accumulate switch\n\ |
---|
3486 | \t>=1000 use index+1 as number of large loops\n\ |
---|
3487 | \t==100 use objvalue +0.05*fabs(objvalue) as cutoff OR fakeCutoff if set\n\ |
---|
3488 | \t%100 == 10,20 affects how each solve is done\n\ |
---|
3489 | \t1 == fix ints at bounds, 2 fix all integral ints, 3 and continuous at bounds. \ |
---|
3490 | If accumulate is on then after a major pass, variables which have not moved \ |
---|
3491 | are fixed and a small branch and bound is tried."); |
---|
3492 | p.setIntValue(0); |
---|
3493 | parameters.push_back(p); |
---|
3494 | } |
---|
3495 | #endif |
---|
3496 | { |
---|
3497 | CbcOrClpParam p("quit", "Stops clp execution", |
---|
3498 | CLP_PARAM_ACTION_EXIT); |
---|
3499 | p.setLonghelp( |
---|
3500 | "This stops the execution of Clp, end, exit, quit and stop are synonyms"); |
---|
3501 | |
---|
3502 | parameters.push_back(p); |
---|
3503 | } |
---|
3504 | #ifdef COIN_HAS_CBC |
---|
3505 | { |
---|
3506 | CbcOrClpParam p("randomC!bcSeed", "Random seed for Cbc", |
---|
3507 | -1, COIN_INT_MAX, CBC_PARAM_INT_RANDOMSEED); |
---|
3508 | |
---|
3509 | p.setLonghelp( |
---|
3510 | "Allows initialization of the random seed for pseudo-random numbers used in heuristics such as the Feasibility Pump to decide whether to round up or down. " |
---|
3511 | "The special value of 0 lets Cbc use the time of the day for the initial seed."); |
---|
3512 | p.setIntValue(-1); |
---|
3513 | parameters.push_back(p); |
---|
3514 | } |
---|
3515 | { |
---|
3516 | CbcOrClpParam p("randomi!zedRounding", "Whether to try randomized rounding heuristic", |
---|
3517 | "off", CBC_PARAM_STR_RANDROUND); |
---|
3518 | p.append("on"); |
---|
3519 | p.append("both"); |
---|
3520 | p.append("before"); |
---|
3521 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
3522 | parameters.push_back(p); |
---|
3523 | } |
---|
3524 | #endif |
---|
3525 | #ifdef COIN_HAS_CLP |
---|
3526 | { |
---|
3527 | CbcOrClpParam p("randomS!eed", "Random seed for Clp", |
---|
3528 | 0, COIN_INT_MAX, CLP_PARAM_INT_RANDOMSEED); |
---|
3529 | |
---|
3530 | p.setLonghelp( |
---|
3531 | "Initialization of the random seed for pseudo-random numbers used to break ties in degenerate problems. " |
---|
3532 | "This may yield a different continuous optimum and, in the context of Cbc, different cuts and heuristic solutions. " |
---|
3533 | "The special value of 0 lets CLP use the time of the day for the initial seed."); |
---|
3534 | p.setIntValue(1234567); |
---|
3535 | parameters.push_back(p); |
---|
3536 | } |
---|
3537 | #endif |
---|
3538 | #ifdef COIN_HAS_CBC |
---|
3539 | { |
---|
3540 | CbcOrClpParam p("ratio!Gap", "Stop when gap between best possible and \ |
---|
3541 | best known is less than this fraction of larger of two", |
---|
3542 | 0.0, COIN_DBL_MAX, CBC_PARAM_DBL_GAPRATIO); |
---|
3543 | p.setDoubleValue(0.0); |
---|
3544 | p.setLonghelp( |
---|
3545 | "If the gap between the best known solution and the best possible solution is less than this fraction \ |
---|
3546 | of the objective value at the root node then the search will terminate. See 'allowableGap' for a \ |
---|
3547 | way of using absolute value rather than fraction."); |
---|
3548 | parameters.push_back(p); |
---|
3549 | } |
---|
3550 | #endif |
---|
3551 | { |
---|
3552 | CbcOrClpParam p("restoreS!olution", "reads solution from file", |
---|
3553 | CLP_PARAM_ACTION_RESTORESOL); |
---|
3554 | |
---|
3555 | p.setLonghelp( |
---|
3556 | "This will read a binary solution file from the given file name. It will use the default\ |
---|
3557 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3558 | is initialized to 'solution.file'. This reads in a file from saveSolution"); |
---|
3559 | parameters.push_back(p); |
---|
3560 | } |
---|
3561 | #ifdef COIN_HAS_CBC |
---|
3562 | { |
---|
3563 | CbcOrClpParam p("readSt!ored", "Import stored cuts from file", |
---|
3564 | CLP_PARAM_ACTION_STOREDFILE, 3, 0); |
---|
3565 | parameters.push_back(p); |
---|
3566 | } |
---|
3567 | #endif |
---|
3568 | #ifdef COIN_HAS_CLP |
---|
3569 | { |
---|
3570 | CbcOrClpParam p("reallyO!bjectiveScale", "Scale factor to apply to objective in place", |
---|
3571 | -COIN_DBL_MAX, COIN_DBL_MAX, CLP_PARAM_DBL_OBJSCALE2, 0); |
---|
3572 | p.setLonghelp("You can set this to -1.0 to test maximization or other to stress code"); |
---|
3573 | p.setDoubleValue(1.0); |
---|
3574 | parameters.push_back(p); |
---|
3575 | } |
---|
3576 | { |
---|
3577 | CbcOrClpParam p("reallyS!cale", "Scales model in place", |
---|
3578 | CLP_PARAM_ACTION_REALLY_SCALE, 7, 0); |
---|
3579 | parameters.push_back(p); |
---|
3580 | } |
---|
3581 | #endif |
---|
3582 | #ifdef COIN_HAS_CBC |
---|
3583 | { |
---|
3584 | CbcOrClpParam p("reduce!AndSplitCuts", "Whether to use Reduce-and-Split cuts", |
---|
3585 | "off", CBC_PARAM_STR_REDSPLITCUTS); |
---|
3586 | |
---|
3587 | p.append("on"); |
---|
3588 | p.append("root"); |
---|
3589 | p.append("ifmove"); |
---|
3590 | p.append("forceOn"); |
---|
3591 | p.setLonghelp( |
---|
3592 | "These cuts may be expensive to generate. " |
---|
3593 | CUTS_LONGHELP |
---|
3594 | " Reference: https://github.com/coin-or/Cgl/wiki/CglRedSplit"); |
---|
3595 | parameters.push_back(p); |
---|
3596 | } |
---|
3597 | { |
---|
3598 | CbcOrClpParam p("reduce2!AndSplitCuts", "Whether to use Reduce-and-Split cuts - style 2", |
---|
3599 | "off", CBC_PARAM_STR_REDSPLIT2CUTS); |
---|
3600 | p.append("on"); |
---|
3601 | p.append("root"); |
---|
3602 | p.append("longOn"); |
---|
3603 | p.append("longRoot"); |
---|
3604 | p.setLonghelp("This switches on reduce and split cuts (either at root or in entire tree). \ |
---|
3605 | This version is by Giacomo Nannicini based on Francois Margot's version. \ |
---|
3606 | Standard setting only uses rows in tableau <= 256, long uses all. \ |
---|
3607 | These cuts may be expensive to generate. \ |
---|
3608 | See option cuts for more information on the possible values."); |
---|
3609 | parameters.push_back(p); |
---|
3610 | } |
---|
3611 | { |
---|
3612 | CbcOrClpParam p("residual!CapacityCuts", "Whether to use Residual Capacity cuts", |
---|
3613 | "off", CBC_PARAM_STR_RESIDCUTS); |
---|
3614 | p.append("on"); |
---|
3615 | p.append("root"); |
---|
3616 | p.append("ifmove"); |
---|
3617 | p.append("forceOn"); |
---|
3618 | p.setLonghelp(CUTS_LONGHELP |
---|
3619 | " Reference: https://github.com/coin-or/Cgl/wiki/CglResidualCapacity"); |
---|
3620 | |
---|
3621 | parameters.push_back(p); |
---|
3622 | } |
---|
3623 | #endif |
---|
3624 | #ifdef COIN_HAS_CLP |
---|
3625 | { |
---|
3626 | CbcOrClpParam p("restore!Model", "Restore model from binary file", |
---|
3627 | CLP_PARAM_ACTION_RESTORE, 7, 1); |
---|
3628 | p.setLonghelp( |
---|
3629 | "This reads data save by saveModel from the given file. It will use the default\ |
---|
3630 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3631 | is initialized to 'default.prob'."); |
---|
3632 | |
---|
3633 | parameters.push_back(p); |
---|
3634 | } |
---|
3635 | { |
---|
3636 | CbcOrClpParam p("reverse", "Reverses sign of objective", |
---|
3637 | CLP_PARAM_ACTION_REVERSE, 7, 0); |
---|
3638 | p.setLonghelp( |
---|
3639 | "Useful for testing if maximization works correctly"); |
---|
3640 | parameters.push_back(p); |
---|
3641 | } |
---|
3642 | { |
---|
3643 | CbcOrClpParam p("rhs!Scale", "Scale factor to apply to rhs and bounds", |
---|
3644 | -COIN_DBL_MAX, COIN_DBL_MAX, CLP_PARAM_DBL_RHSSCALE, 0); |
---|
3645 | p.setLonghelp( |
---|
3646 | "If the rhs or bounds have some very large meaningful values, you may wish to scale them\ |
---|
3647 | internally by this amount. It can also be set by autoscale. This should not be needed."); |
---|
3648 | p.setDoubleValue(1.0); |
---|
3649 | parameters.push_back(p); |
---|
3650 | } |
---|
3651 | #endif |
---|
3652 | #ifdef COIN_HAS_CBC |
---|
3653 | { |
---|
3654 | CbcOrClpParam p("Rens", "Whether to try Relaxation Enforced Neighborhood Search", |
---|
3655 | "off", CBC_PARAM_STR_RENS); |
---|
3656 | p.append("on"); |
---|
3657 | p.append("both"); |
---|
3658 | p.append("before"); |
---|
3659 | p.append("200"); |
---|
3660 | p.append("1000"); |
---|
3661 | p.append("10000"); |
---|
3662 | p.append("dj"); |
---|
3663 | p.append("djbefore"); |
---|
3664 | p.append("usesolution"); |
---|
3665 | p.setLonghelp(HEURISTICS_LONGHELP |
---|
3666 | " Value 'on' just does 50 nodes. 200, 1000, and 10000 does that many nodes."); |
---|
3667 | parameters.push_back(p); |
---|
3668 | } |
---|
3669 | { |
---|
3670 | CbcOrClpParam p("Rins", "Whether to try Relaxed Induced Neighborhood Search", |
---|
3671 | "off", CBC_PARAM_STR_RINS); |
---|
3672 | p.append("on"); |
---|
3673 | p.append("both"); |
---|
3674 | p.append("before"); |
---|
3675 | p.append("often"); |
---|
3676 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
3677 | parameters.push_back(p); |
---|
3678 | } |
---|
3679 | { |
---|
3680 | CbcOrClpParam p("round!ingHeuristic", "Whether to use simple (but effective) Rounding heuristic", |
---|
3681 | "off", CBC_PARAM_STR_ROUNDING); |
---|
3682 | p.append("on"); |
---|
3683 | p.append("both"); |
---|
3684 | p.append("before"); |
---|
3685 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
3686 | parameters.push_back(p); |
---|
3687 | } |
---|
3688 | #endif |
---|
3689 | { |
---|
3690 | CbcOrClpParam p("saveM!odel", "Save model to binary file", |
---|
3691 | CLP_PARAM_ACTION_SAVE, 7, 1); |
---|
3692 | p.setLonghelp( |
---|
3693 | "This will save the problem to the given file name for future use\ |
---|
3694 | by restoreModel. It will use the default\ |
---|
3695 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3696 | is initialized to 'default.prob'."); |
---|
3697 | parameters.push_back(p); |
---|
3698 | } |
---|
3699 | { |
---|
3700 | CbcOrClpParam p("saveS!olution", "saves solution to file", |
---|
3701 | CLP_PARAM_ACTION_SAVESOL); |
---|
3702 | |
---|
3703 | p.setLonghelp( |
---|
3704 | "This will write a binary solution file to the given file name. It will use the default\ |
---|
3705 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3706 | is initialized to 'solution.file'. To read the file use fread(int) twice to pick up number of rows \ |
---|
3707 | and columns, then fread(double) to pick up objective value, then pick up row activities, row duals, column \ |
---|
3708 | activities and reduced costs - see bottom of CbcOrClpParam.cpp for code that reads or writes file. \ |
---|
3709 | If name contains '_fix_read_' then does not write but reads and will fix all variables"); |
---|
3710 | parameters.push_back(p); |
---|
3711 | } |
---|
3712 | { |
---|
3713 | CbcOrClpParam p("scal!ing", "Whether to scale problem", |
---|
3714 | "off", CLP_PARAM_STR_SCALING); |
---|
3715 | p.append("equi!librium"); |
---|
3716 | p.append("geo!metric"); |
---|
3717 | p.append("auto!matic"); |
---|
3718 | p.append("dynamic"); |
---|
3719 | p.append("rows!only"); |
---|
3720 | p.setLonghelp( |
---|
3721 | "Scaling can help in solving problems which might otherwise fail because of lack of\ |
---|
3722 | accuracy. It can also reduce the number of iterations. It is not applied if the range\ |
---|
3723 | of elements is small. When the solution is evaluated in the unscaled problem, it is possible that small primal and/or\ |
---|
3724 | dual infeasibilities occur. " |
---|
3725 | "Option 'equilibrium' uses the largest element for scaling. " |
---|
3726 | "Option 'geometric' uses the squareroot of the product of largest and smallest element. " |
---|
3727 | "Option 'auto' let CLP choose a method that gives the best ratio of the largest element to the smallest one."); |
---|
3728 | p.setCurrentOption(3); // say auto |
---|
3729 | parameters.push_back(p); |
---|
3730 | } |
---|
3731 | #ifndef COIN_HAS_CBC |
---|
3732 | { |
---|
3733 | CbcOrClpParam p("sec!onds", "Maximum seconds", |
---|
3734 | -1.0, COIN_DBL_MAX, CLP_PARAM_DBL_TIMELIMIT); |
---|
3735 | |
---|
3736 | p.setLonghelp("After this many seconds clp will act as if maximum iterations had been reached \ |
---|
3737 | (if value >=0)."); |
---|
3738 | parameters.push_back(p); |
---|
3739 | } |
---|
3740 | #else |
---|
3741 | { |
---|
3742 | CbcOrClpParam p("sec!onds", "maximum seconds", |
---|
3743 | -1.0, COIN_DBL_MAX, CBC_PARAM_DBL_TIMELIMIT_BAB); |
---|
3744 | p.setLonghelp( |
---|
3745 | "After this many seconds coin solver will act as if maximum nodes had been reached."); |
---|
3746 | parameters.push_back(p); |
---|
3747 | } |
---|
3748 | #endif |
---|
3749 | { |
---|
3750 | CbcOrClpParam p("sleep", "for debug", |
---|
3751 | CLP_PARAM_ACTION_DUMMY, 7, 0); |
---|
3752 | |
---|
3753 | p.setLonghelp( |
---|
3754 | "If passed to solver fom ampl, then ampl will wait so that you can copy .nl file for debug."); |
---|
3755 | parameters.push_back(p); |
---|
3756 | } |
---|
3757 | #ifdef COIN_HAS_CBC |
---|
3758 | { |
---|
3759 | CbcOrClpParam p("slow!cutpasses", "Maximum number of rounds for slower cut generators", |
---|
3760 | -1, COIN_INT_MAX, CBC_PARAM_INT_MAX_SLOW_CUTS); |
---|
3761 | p.setLonghelp( |
---|
3762 | "Some cut generators are fairly slow - this limits the number of times they are tried.\ |
---|
3763 | The cut generators identified as 'may be slow' at present are Lift and project cuts and both versions of Reduce and Split cuts."); |
---|
3764 | p.setIntValue(10); |
---|
3765 | parameters.push_back(p); |
---|
3766 | } |
---|
3767 | #endif |
---|
3768 | #ifdef COIN_HAS_CLP |
---|
3769 | { |
---|
3770 | CbcOrClpParam p("slp!Value", "Number of slp passes before primal", |
---|
3771 | -50000, 50000, CLP_PARAM_INT_SLPVALUE, 1); |
---|
3772 | p.setLonghelp( |
---|
3773 | "If you are solving a quadratic problem using primal then it may be helpful to do some \ |
---|
3774 | sequential Lps to get a good approximate solution."); |
---|
3775 | parameters.push_back(p); |
---|
3776 | } |
---|
3777 | #if CLP_MULTIPLE_FACTORIZATIONS > 0 |
---|
3778 | { |
---|
3779 | CbcOrClpParam p("small!Factorization", "Threshold for using small factorization", |
---|
3780 | -1, 10000, CBC_PARAM_INT_SMALLFACT, 1); |
---|
3781 | p.setLonghelp( |
---|
3782 | "If processed problem <= this use small factorization"); |
---|
3783 | p.setIntValue(-1); |
---|
3784 | parameters.push_back(p); |
---|
3785 | } |
---|
3786 | #endif |
---|
3787 | #endif |
---|
3788 | { |
---|
3789 | CbcOrClpParam p("solu!tion", "Prints solution to file", |
---|
3790 | CLP_PARAM_ACTION_SOLUTION); |
---|
3791 | p.setLonghelp( |
---|
3792 | "This will write a primitive solution file to the given file name. It will use the default\ |
---|
3793 | directory given by 'directory'. A name of '$' will use the previous value for the name. This\ |
---|
3794 | is initialized to 'stdout'. The amount of output can be varied using printi!ngOptions or printMask."); |
---|
3795 | parameters.push_back(p); |
---|
3796 | } |
---|
3797 | #ifdef COIN_HAS_CLP |
---|
3798 | #ifdef COIN_HAS_CBC |
---|
3799 | { |
---|
3800 | CbcOrClpParam p("solv!e", "Solve problem", |
---|
3801 | CBC_PARAM_ACTION_BAB); |
---|
3802 | p.setLonghelp( |
---|
3803 | "If there are no integer variables then this just solves LP. If there are integer variables \ |
---|
3804 | this does branch and cut." ); |
---|
3805 | parameters.push_back( p ); |
---|
3806 | } |
---|
3807 | { |
---|
3808 | CbcOrClpParam p("sosO!ptions", "Whether to use SOS from AMPL", "off", CBC_PARAM_STR_SOS); |
---|
3809 | p.append("on"); |
---|
3810 | p.setCurrentOption("on"); |
---|
3811 | p.setLonghelp( |
---|
3812 | "Normally if AMPL says there are SOS variables they should be used, but sometime sthey should\ |
---|
3813 | be turned off - this does so." ); |
---|
3814 | parameters.push_back( p ); |
---|
3815 | } |
---|
3816 | { |
---|
3817 | CbcOrClpParam p("slog!Level", "Level of detail in (LP) Solver output", -1, 63, CLP_PARAM_INT_SOLVERLOGLEVEL); |
---|
3818 | p.setLonghelp( |
---|
3819 | "If 0 then there should be no output in normal circumstances. 1 is probably the best\ |
---|
3820 | value for most uses, while 2 and 3 give more information. This parameter is only used inside MIP - for Clp use 'log'"); |
---|
3821 | parameters.push_back(p); |
---|
3822 | } |
---|
3823 | { |
---|
3824 | // Due to James Howey |
---|
3825 | CbcOrClpParam p("sosP!rioritize", "How to deal with SOS priorities", |
---|
3826 | "off", CBC_PARAM_STR_SOSPRIORITIZE); |
---|
3827 | p.append("high"); |
---|
3828 | p.append("low"); |
---|
3829 | p.append("orderhigh"); |
---|
3830 | p.append("orderlow"); |
---|
3831 | p.setLonghelp( |
---|
3832 | "This sets priorities for SOS. Values 'high' and 'low' just set a priority \ |
---|
3833 | relative to the for integer variables. Value 'orderhigh' gives first highest priority to the first SOS and integer variables \ |
---|
3834 | a low priority. Value 'orderlow' gives integer variables a high priority then SOS in order."); |
---|
3835 | parameters.push_back(p); |
---|
3836 | } |
---|
3837 | #else |
---|
3838 | // allow solve as synonym for possible dual |
---|
3839 | { |
---|
3840 | CbcOrClpParam p("solv!e", "Solve problem using dual simplex (probably)", |
---|
3841 | CLP_PARAM_ACTION_EITHERSIMPLEX); |
---|
3842 | p.setLonghelp( |
---|
3843 | "Just so can use solve for clp as well as in cbc"); |
---|
3844 | parameters.push_back(p); |
---|
3845 | } |
---|
3846 | #endif |
---|
3847 | #endif |
---|
3848 | #ifdef COIN_HAS_CLP |
---|
3849 | { |
---|
3850 | CbcOrClpParam p("spars!eFactor", "Whether factorization treated as sparse", |
---|
3851 | "on", CLP_PARAM_STR_SPARSEFACTOR, 7, 0); |
---|
3852 | p.append("off"); |
---|
3853 | parameters.push_back(p); |
---|
3854 | } |
---|
3855 | { |
---|
3856 | CbcOrClpParam p("special!Options", "Dubious options for Simplex - see ClpSimplex.hpp", |
---|
3857 | 0, COIN_INT_MAX, CLP_PARAM_INT_SPECIALOPTIONS, 0); |
---|
3858 | parameters.push_back(p); |
---|
3859 | } |
---|
3860 | { |
---|
3861 | CbcOrClpParam p("sprint!Crash", "Whether to try sprint crash", |
---|
3862 | -1, COIN_INT_MAX, CLP_PARAM_INT_SPRINT); |
---|
3863 | p.setLonghelp( |
---|
3864 | "For long and thin problems this method may solve a series of small problems\ |
---|
3865 | created by taking a subset of the columns. The idea as 'Sprint' was introduced by J. Forrest after\ |
---|
3866 | an LP code of that name of the 60's which tried the same tactic (not totally successfully).\ |
---|
3867 | CPLEX calls it 'sifting'. -1 lets CLP automatically choose the number of passes, 0 is off, n is number of passes"); |
---|
3868 | parameters.push_back(p); |
---|
3869 | } |
---|
3870 | { |
---|
3871 | CbcOrClpParam p("stat!istics", "Print some statistics", |
---|
3872 | CLP_PARAM_ACTION_STATISTICS); |
---|
3873 | p.setLonghelp( |
---|
3874 | "This command prints some statistics for the current model.\ |
---|
3875 | If log level >1 then more is printed.\ |
---|
3876 | These are for presolved model if presolve on (and unscaled)."); |
---|
3877 | parameters.push_back(p); |
---|
3878 | } |
---|
3879 | #endif |
---|
3880 | { |
---|
3881 | CbcOrClpParam p("stop", "Stops clp execution", |
---|
3882 | CLP_PARAM_ACTION_EXIT); |
---|
3883 | p.setLonghelp( |
---|
3884 | "This stops the execution of Clp, end, exit, quit and stop are synonyms"); |
---|
3885 | parameters.push_back(p); |
---|
3886 | } |
---|
3887 | #ifdef COIN_HAS_CBC |
---|
3888 | { |
---|
3889 | CbcOrClpParam p("strat!egy", "Switches on groups of features", |
---|
3890 | 0, 2, CBC_PARAM_INT_STRATEGY); |
---|
3891 | p.setLonghelp( |
---|
3892 | "This turns on newer features. \ |
---|
3893 | Use 0 for easy problems, 1 is default, 2 is aggressive. \ |
---|
3894 | 1 uses Gomory cuts with a tolerance of 0.01 at the root node, \ |
---|
3895 | does a possible restart after 100 nodes if many variables could be fixed, \ |
---|
3896 | activates a diving and RINS heuristic, and makes the feasibility pump \ |
---|
3897 | more aggressive."); // This does not apply to unit tests (where 'experiment' may have similar effects |
---|
3898 | p.setIntValue(1); |
---|
3899 | parameters.push_back(p); |
---|
3900 | } |
---|
3901 | #ifdef CBC_KEEP_DEPRECATED |
---|
3902 | { |
---|
3903 | CbcOrClpParam p("strengthen", "Create strengthened problem", |
---|
3904 | CBC_PARAM_ACTION_STRENGTHEN, 3); |
---|
3905 | p.setLonghelp( |
---|
3906 | "This creates a new problem by applying the root node cuts. All tight constraints \ |
---|
3907 | will be in resulting problem"); |
---|
3908 | parameters.push_back(p); |
---|
3909 | } |
---|
3910 | #endif |
---|
3911 | { |
---|
3912 | CbcOrClpParam p("strong!Branching", "Number of variables to look at in strong branching", |
---|
3913 | 0, COIN_INT_MAX, CBC_PARAM_INT_STRONGBRANCHING); |
---|
3914 | p.setIntValue(20); |
---|
3915 | p.setLonghelp( |
---|
3916 | "In order to decide which variable to branch on, the code will choose up to this number \ |
---|
3917 | of unsatisfied variables to try minimal up and down branches on. Then the most effective one is chosen. \ |
---|
3918 | If a variable is branched on many times then the previous average up and down costs may be used - \ |
---|
3919 | see also option trustPseudoCosts."); |
---|
3920 | parameters.push_back(p); |
---|
3921 | } |
---|
3922 | #endif |
---|
3923 | #ifdef COIN_HAS_CLP |
---|
3924 | { |
---|
3925 | CbcOrClpParam p("subs!titution", "How long a column to substitute for in presolve", |
---|
3926 | 0, 10000, CLP_PARAM_INT_SUBSTITUTION, 0); |
---|
3927 | p.setLonghelp( |
---|
3928 | "Normally Presolve gets rid of 'free' variables when there are no more than 3 \ |
---|
3929 | coefficients in a row. If you increase this, the number of rows may decrease but the number of \ |
---|
3930 | coefficients may increase."); |
---|
3931 | parameters.push_back(p); |
---|
3932 | } |
---|
3933 | #endif |
---|
3934 | #ifdef COIN_HAS_CBC |
---|
3935 | { |
---|
3936 | CbcOrClpParam p("testO!si", "Test OsiObject stuff", |
---|
3937 | -1, COIN_INT_MAX, CBC_PARAM_INT_TESTOSI, 0); |
---|
3938 | parameters.push_back(p); |
---|
3939 | } |
---|
3940 | #endif |
---|
3941 | #ifdef CBC_THREAD |
---|
3942 | { |
---|
3943 | CbcOrClpParam p("thread!s", "Number of threads to try and use", |
---|
3944 | -100, 100000, CBC_PARAM_INT_THREADS, 1); |
---|
3945 | p.setIntValue(0); |
---|
3946 | p.setLonghelp( |
---|
3947 | "To use multiple threads, set threads to number wanted. It may be better \ |
---|
3948 | to use one or two more than number of cpus available. If 100+n then n threads and \ |
---|
3949 | search is repeatable (maybe be somewhat slower), \ |
---|
3950 | if 200+n use threads for root cuts, 400+n threads used in sub-trees."); |
---|
3951 | parameters.push_back(p); |
---|
3952 | } |
---|
3953 | #endif |
---|
3954 | #ifdef COIN_HAS_CBC |
---|
3955 | { |
---|
3956 | CbcOrClpParam p("tighten!Factor", "Tighten bounds using this times largest \ |
---|
3957 | activity at continuous solution", |
---|
3958 | 1.0e-3, COIN_DBL_MAX, CBC_PARAM_DBL_TIGHTENFACTOR, 0); |
---|
3959 | p.setLonghelp( |
---|
3960 | "This sleazy trick can help on some problems."); |
---|
3961 | parameters.push_back(p); |
---|
3962 | } |
---|
3963 | |
---|
3964 | #endif |
---|
3965 | #ifdef COIN_HAS_CLP |
---|
3966 | { |
---|
3967 | CbcOrClpParam p("tightLP", "Poor person's preSolve for now", |
---|
3968 | CLP_PARAM_ACTION_TIGHTEN, 7, 0); |
---|
3969 | parameters.push_back(p); |
---|
3970 | } |
---|
3971 | #endif |
---|
3972 | { |
---|
3973 | CbcOrClpParam p("timeM!ode", "Whether to use CPU or elapsed time", |
---|
3974 | "cpu", CLP_PARAM_STR_TIME_MODE); |
---|
3975 | p.append("elapsed"); |
---|
3976 | p.setLonghelp( |
---|
3977 | "cpu uses CPU time for stopping, while elapsed uses elapsed time. \ |
---|
3978 | (On Windows, elapsed time is always used)."); |
---|
3979 | parameters.push_back(p); |
---|
3980 | } |
---|
3981 | #ifdef COIN_HAS_CBC |
---|
3982 | { |
---|
3983 | CbcOrClpParam p("trust!PseudoCosts", "Number of branches before we trust pseudocosts", |
---|
3984 | -3, COIN_INT_MAX, CBC_PARAM_INT_NUMBERBEFORE); |
---|
3985 | p.setLonghelp( |
---|
3986 | "Using strong branching computes pseudo-costs. This parameter determines after how many branches for a variable we just \ |
---|
3987 | trust the pseudo costs and do not do any more strong branching."); |
---|
3988 | p.setIntValue(10); |
---|
3989 | parameters.push_back(p); |
---|
3990 | } |
---|
3991 | #endif |
---|
3992 | #ifdef COIN_HAS_CBC |
---|
3993 | { |
---|
3994 | CbcOrClpParam p("tune!PreProcess", "Dubious tuning parameters for preprocessing", |
---|
3995 | 0, COIN_INT_MAX, CLP_PARAM_INT_PROCESSTUNE, 1); |
---|
3996 | p.setLonghelp( |
---|
3997 | "Format aabbcccc - \n If aa then this is number of major passes (i.e. with presolve) \n \ |
---|
3998 | If bb and bb>0 then this is number of minor passes (if unset or 0 then 10) \n \ |
---|
3999 | cccc is bit set \n 0 - 1 Heavy probing \n 1 - 2 Make variables integer if possible (if obj value)\n \ |
---|
4000 | 2 - 4 As above but even if zero objective value\n \ |
---|
4001 | 7 - 128 Try and create cliques\n 8 - 256 If all +1 try hard for dominated rows\n \ |
---|
4002 | 10 - 1024 Use a larger feasibility tolerance in presolve\n \ |
---|
4003 | 11 - 2048 Try probing before creating cliques\n \ |
---|
4004 | 12 - 4096 Switch off duplicate column checking for integers \n \n \ |
---|
4005 | Now aa 99 has special meaning i.e. just one simple presolve."); |
---|
4006 | parameters.push_back(p); |
---|
4007 | } |
---|
4008 | { |
---|
4009 | CbcOrClpParam p("two!MirCuts", "Whether to use Two phase Mixed Integer Rounding cuts", |
---|
4010 | "off", CBC_PARAM_STR_TWOMIRCUTS); |
---|
4011 | p.append("on"); |
---|
4012 | p.append("root"); |
---|
4013 | p.append("ifmove"); |
---|
4014 | p.append("forceOn"); |
---|
4015 | p.append("onglobal"); |
---|
4016 | p.append("forceandglobal"); |
---|
4017 | p.append("forceLongOn"); |
---|
4018 | p.setLonghelp(CUTS_LONGHELP |
---|
4019 | " Reference: https://github.com/coin-or/Cgl/wiki/CglTwomir"); |
---|
4020 | parameters.push_back(p); |
---|
4021 | } |
---|
4022 | #endif |
---|
4023 | { |
---|
4024 | CbcOrClpParam p("unitTest", "Do unit test", |
---|
4025 | CLP_PARAM_ACTION_UNITTEST, 3, 1); |
---|
4026 | p.setLonghelp( |
---|
4027 | "This exercises the unit test for clp"); |
---|
4028 | parameters.push_back(p); |
---|
4029 | } |
---|
4030 | { |
---|
4031 | CbcOrClpParam p("userClp", "Hand coded Clp stuff", |
---|
4032 | CLP_PARAM_ACTION_USERCLP, 0, 0); |
---|
4033 | p.setLonghelp( |
---|
4034 | "There are times e.g. when using AMPL interface when you may wish to do something unusual. \ |
---|
4035 | Look for USERCLP in main driver and modify sample code."); |
---|
4036 | parameters.push_back(p); |
---|
4037 | } |
---|
4038 | #ifdef COIN_HAS_CBC |
---|
4039 | { |
---|
4040 | CbcOrClpParam p("userCbc", "Hand coded Cbc stuff", |
---|
4041 | CBC_PARAM_ACTION_USERCBC, 0, 0); |
---|
4042 | p.setLonghelp( |
---|
4043 | "There are times e.g. when using AMPL interface when you may wish to do something unusual. \ |
---|
4044 | Look for USERCBC in main driver and modify sample code. \ |
---|
4045 | It is possible you can get same effect by using example driver4.cpp."); |
---|
4046 | parameters.push_back(p); |
---|
4047 | } |
---|
4048 | #endif |
---|
4049 | #ifdef COIN_AVX2 |
---|
4050 | { |
---|
4051 | CbcOrClpParam p("vector!Mode", "Try and use vector instructions", |
---|
4052 | 0, 11, CLP_PARAM_INT_VECTOR_MODE); |
---|
4053 | p.setLonghelp( |
---|
4054 | "At present only for Intel architectures - but could be extended. \ |
---|
4055 | Uses avx2 or avx512 instructions. Uses different storage for matrix - can be \ |
---|
4056 | of benefit without instruction set on some problems. \ |
---|
4057 | Being lazy I have used 10 to switch on a pool matrix (11 may come later)"); |
---|
4058 | p.setIntValue(0); |
---|
4059 | parameters.push_back(p); |
---|
4060 | } |
---|
4061 | #endif |
---|
4062 | #ifdef COIN_HAS_CBC |
---|
4063 | { |
---|
4064 | CbcOrClpParam p("Vnd!VariableNeighborhoodSearch", "Whether to try Variable Neighborhood Search", |
---|
4065 | "off", CBC_PARAM_STR_VND); |
---|
4066 | p.append("on"); |
---|
4067 | p.append("both"); |
---|
4068 | p.append("before"); |
---|
4069 | p.append("intree"); |
---|
4070 | p.setLonghelp(HEURISTICS_LONGHELP); |
---|
4071 | parameters.push_back(p); |
---|
4072 | } |
---|
4073 | #endif |
---|
4074 | { |
---|
4075 | CbcOrClpParam p("vector", "Whether to use vector? Form of matrix in simplex", |
---|
4076 | "off", CLP_PARAM_STR_VECTOR, 7, 0); |
---|
4077 | p.append("on"); |
---|
4078 | p.setLonghelp( |
---|
4079 | "If this is on ClpPackedMatrix uses extra column copy in odd format."); |
---|
4080 | parameters.push_back(p); |
---|
4081 | } |
---|
4082 | { |
---|
4083 | CbcOrClpParam p("verbose", "Switches on longer help on single ?", |
---|
4084 | 0, 31, CLP_PARAM_INT_VERBOSE, 0); |
---|
4085 | p.setLonghelp( |
---|
4086 | "Set to 1 to get short help with ? list, 2 to get long help, 3 for both. (add 4 to just get ampl ones)."); |
---|
4087 | p.setIntValue(0); |
---|
4088 | parameters.push_back(p); |
---|
4089 | } |
---|
4090 | #ifdef COIN_HAS_CBC |
---|
4091 | { |
---|
4092 | CbcOrClpParam p("vub!heuristic", "Type of VUB heuristic", |
---|
4093 | -2, 20, CBC_PARAM_INT_VUBTRY, 0); |
---|
4094 | p.setLonghelp( |
---|
4095 | "This heuristic tries and fix some integer variables."); |
---|
4096 | p.setIntValue(-1); |
---|
4097 | parameters.push_back(p); |
---|
4098 | } |
---|
4099 | { |
---|
4100 | CbcOrClpParam p("zero!HalfCuts", "Whether to use zero half cuts", |
---|
4101 | "off", CBC_PARAM_STR_ZEROHALFCUTS); |
---|
4102 | p.append("on"); |
---|
4103 | p.append("root"); |
---|
4104 | p.append("ifmove"); |
---|
4105 | p.append("forceOn"); |
---|
4106 | p.append("onglobal"); |
---|
4107 | p.setLonghelp(CUTS_LONGHELP |
---|
4108 | " This implementation was written by Alberto Caprara."); |
---|
4109 | parameters.push_back(p); |
---|
4110 | } |
---|
4111 | #endif |
---|
4112 | { |
---|
4113 | CbcOrClpParam p("zeroT!olerance", "Kill all coefficients \ |
---|
4114 | whose absolute value is less than this value", |
---|
4115 | 1.0e-100, 1.0e-5, CLP_PARAM_DBL_ZEROTOLERANCE); |
---|
4116 | p.setLonghelp( |
---|
4117 | "This applies to reading mps files (and also lp files \ |
---|
4118 | if KILL_ZERO_READLP defined)"); |
---|
4119 | p.setDoubleValue(1.0e-20); |
---|
4120 | parameters.push_back(p); |
---|
4121 | } |
---|
4122 | } |
---|
4123 | // Given a parameter type - returns its number in list |
---|
4124 | int whichParam(const CbcOrClpParameterType &name, |
---|
4125 | const std::vector< CbcOrClpParam > ¶meters) |
---|
4126 | { |
---|
4127 | for (int i = 0; i < (int)parameters.size(); i++) { |
---|
4128 | if (parameters[i].type() == name) |
---|
4129 | return i; |
---|
4130 | } |
---|
4131 | return std::numeric_limits< int >::max(); // should not arrive here |
---|
4132 | } |
---|
4133 | #ifdef COIN_HAS_CLP |
---|
4134 | /* Restore a solution from file. |
---|
4135 | mode 0 normal, 1 swap rows and columns and primal and dual |
---|
4136 | if 2 set then also change signs |
---|
4137 | */ |
---|
4138 | void restoreSolution(ClpSimplex *lpSolver, std::string fileName, int mode) |
---|
4139 | { |
---|
4140 | FILE *fp = fopen(fileName.c_str(), "rb"); |
---|
4141 | if (fp) { |
---|
4142 | int numberRows = lpSolver->numberRows(); |
---|
4143 | int numberColumns = lpSolver->numberColumns(); |
---|
4144 | int numberRowsFile; |
---|
4145 | int numberColumnsFile; |
---|
4146 | double objectiveValue; |
---|
4147 | size_t nRead; |
---|
4148 | nRead = fread(&numberRowsFile, sizeof(int), 1, fp); |
---|
4149 | if (nRead != 1) |
---|
4150 | throw("Error in fread"); |
---|
4151 | nRead = fread(&numberColumnsFile, sizeof(int), 1, fp); |
---|
4152 | if (nRead != 1) |
---|
4153 | throw("Error in fread"); |
---|
4154 | nRead = fread(&objectiveValue, sizeof(double), 1, fp); |
---|
4155 | if (nRead != 1) |
---|
4156 | throw("Error in fread"); |
---|
4157 | double *dualRowSolution = lpSolver->dualRowSolution(); |
---|
4158 | double *primalRowSolution = lpSolver->primalRowSolution(); |
---|
4159 | double *dualColumnSolution = lpSolver->dualColumnSolution(); |
---|
4160 | double *primalColumnSolution = lpSolver->primalColumnSolution(); |
---|
4161 | if (mode) { |
---|
4162 | // swap |
---|
4163 | int k = numberRows; |
---|
4164 | numberRows = numberColumns; |
---|
4165 | numberColumns = k; |
---|
4166 | double *temp; |
---|
4167 | temp = dualRowSolution; |
---|
4168 | dualRowSolution = primalColumnSolution; |
---|
4169 | primalColumnSolution = temp; |
---|
4170 | temp = dualColumnSolution; |
---|
4171 | dualColumnSolution = primalRowSolution; |
---|
4172 | primalRowSolution = temp; |
---|
4173 | } |
---|
4174 | if (numberRows > numberRowsFile || numberColumns > numberColumnsFile) { |
---|
4175 | std::cout << "Mismatch on rows and/or columns - giving up" << std::endl; |
---|
4176 | } else { |
---|
4177 | lpSolver->setObjectiveValue(objectiveValue); |
---|
4178 | if (numberRows == numberRowsFile && numberColumns == numberColumnsFile) { |
---|
4179 | nRead = fread(primalRowSolution, sizeof(double), numberRows, fp); |
---|
4180 | if (nRead != static_cast< size_t >(numberRows)) |
---|
4181 | throw("Error in fread"); |
---|
4182 | nRead = fread(dualRowSolution, sizeof(double), numberRows, fp); |
---|
4183 | if (nRead != static_cast< size_t >(numberRows)) |
---|
4184 | throw("Error in fread"); |
---|
4185 | nRead = fread(primalColumnSolution, sizeof(double), numberColumns, fp); |
---|
4186 | if (nRead != static_cast< size_t >(numberColumns)) |
---|
4187 | throw("Error in fread"); |
---|
4188 | nRead = fread(dualColumnSolution, sizeof(double), numberColumns, fp); |
---|
4189 | if (nRead != static_cast< size_t >(numberColumns)) |
---|
4190 | throw("Error in fread"); |
---|
4191 | } else { |
---|
4192 | std::cout << "Mismatch on rows and/or columns - truncating" << std::endl; |
---|
4193 | double *temp = new double[CoinMax(numberRowsFile, numberColumnsFile)]; |
---|
4194 | nRead = fread(temp, sizeof(double), numberRowsFile, fp); |
---|
4195 | if (nRead != static_cast< size_t >(numberRowsFile)) |
---|
4196 | throw("Error in fread"); |
---|
4197 | CoinMemcpyN(temp, numberRows, primalRowSolution); |
---|
4198 | nRead = fread(temp, sizeof(double), numberRowsFile, fp); |
---|
4199 | if (nRead != static_cast< size_t >(numberRowsFile)) |
---|
4200 | throw("Error in fread"); |
---|
4201 | CoinMemcpyN(temp, numberRows, dualRowSolution); |
---|
4202 | nRead = fread(temp, sizeof(double), numberColumnsFile, fp); |
---|
4203 | if (nRead != static_cast< size_t >(numberColumnsFile)) |
---|
4204 | throw("Error in fread"); |
---|
4205 | CoinMemcpyN(temp, numberColumns, primalColumnSolution); |
---|
4206 | nRead = fread(temp, sizeof(double), numberColumnsFile, fp); |
---|
4207 | if (nRead != static_cast< size_t >(numberColumnsFile)) |
---|
4208 | throw("Error in fread"); |
---|
4209 | CoinMemcpyN(temp, numberColumns, dualColumnSolution); |
---|
4210 | delete[] temp; |
---|
4211 | } |
---|
4212 | if (mode == 3) { |
---|
4213 | int i; |
---|
4214 | for (i = 0; i < numberRows; i++) { |
---|
4215 | primalRowSolution[i] = -primalRowSolution[i]; |
---|
4216 | dualRowSolution[i] = -dualRowSolution[i]; |
---|
4217 | } |
---|
4218 | for (i = 0; i < numberColumns; i++) { |
---|
4219 | primalColumnSolution[i] = -primalColumnSolution[i]; |
---|
4220 | dualColumnSolution[i] = -dualColumnSolution[i]; |
---|
4221 | } |
---|
4222 | } |
---|
4223 | } |
---|
4224 | fclose(fp); |
---|
4225 | } else { |
---|
4226 | std::cout << "Unable to open file " << fileName << std::endl; |
---|
4227 | } |
---|
4228 | } |
---|
4229 | // Dump a solution to file |
---|
4230 | void saveSolution(const ClpSimplex *lpSolver, std::string fileName) |
---|
4231 | { |
---|
4232 | if (strstr(fileName.c_str(), "_fix_read_")) { |
---|
4233 | FILE *fp = fopen(fileName.c_str(), "rb"); |
---|
4234 | if (fp) { |
---|
4235 | ClpSimplex *solver = const_cast< ClpSimplex * >(lpSolver); |
---|
4236 | restoreSolution(solver, fileName, 0); |
---|
4237 | // fix all |
---|
4238 | int logLevel = solver->logLevel(); |
---|
4239 | int iColumn; |
---|
4240 | int numberColumns = solver->numberColumns(); |
---|
4241 | double *primalColumnSolution = solver->primalColumnSolution(); |
---|
4242 | double *columnLower = solver->columnLower(); |
---|
4243 | double *columnUpper = solver->columnUpper(); |
---|
4244 | for (iColumn = 0; iColumn < numberColumns; iColumn++) { |
---|
4245 | double value = primalColumnSolution[iColumn]; |
---|
4246 | if (value > columnUpper[iColumn]) { |
---|
4247 | if (value > columnUpper[iColumn] + 1.0e-6 && logLevel > 1) |
---|
4248 | printf("%d value of %g - bounds %g %g\n", |
---|
4249 | iColumn, value, columnLower[iColumn], columnUpper[iColumn]); |
---|
4250 | value = columnUpper[iColumn]; |
---|
4251 | } else if (value < columnLower[iColumn]) { |
---|
4252 | if (value < columnLower[iColumn] - 1.0e-6 && logLevel > 1) |
---|
4253 | printf("%d value of %g - bounds %g %g\n", |
---|
4254 | iColumn, value, columnLower[iColumn], columnUpper[iColumn]); |
---|
4255 | value = columnLower[iColumn]; |
---|
4256 | } |
---|
4257 | columnLower[iColumn] = value; |
---|
4258 | columnUpper[iColumn] = value; |
---|
4259 | } |
---|
4260 | return; |
---|
4261 | } |
---|
4262 | } |
---|
4263 | FILE *fp = fopen(fileName.c_str(), "wb"); |
---|
4264 | if (fp) { |
---|
4265 | int numberRows = lpSolver->numberRows(); |
---|
4266 | int numberColumns = lpSolver->numberColumns(); |
---|
4267 | double objectiveValue = lpSolver->objectiveValue(); |
---|
4268 | size_t nWrite; |
---|
4269 | nWrite = fwrite(&numberRows, sizeof(int), 1, fp); |
---|
4270 | if (nWrite != 1) |
---|
4271 | throw("Error in fwrite"); |
---|
4272 | nWrite = fwrite(&numberColumns, sizeof(int), 1, fp); |
---|
4273 | if (nWrite != 1) |
---|
4274 | throw("Error in fwrite"); |
---|
4275 | nWrite = fwrite(&objectiveValue, sizeof(double), 1, fp); |
---|
4276 | if (nWrite != 1) |
---|
4277 | throw("Error in fwrite"); |
---|
4278 | double *dualRowSolution = lpSolver->dualRowSolution(); |
---|
4279 | double *primalRowSolution = lpSolver->primalRowSolution(); |
---|
4280 | nWrite = fwrite(primalRowSolution, sizeof(double), numberRows, fp); |
---|
4281 | if (nWrite != static_cast< size_t >(numberRows)) |
---|
4282 | throw("Error in fwrite"); |
---|
4283 | nWrite = fwrite(dualRowSolution, sizeof(double), numberRows, fp); |
---|
4284 | if (nWrite != static_cast< size_t >(numberRows)) |
---|
4285 | throw("Error in fwrite"); |
---|
4286 | double *dualColumnSolution = lpSolver->dualColumnSolution(); |
---|
4287 | double *primalColumnSolution = lpSolver->primalColumnSolution(); |
---|
4288 | nWrite = fwrite(primalColumnSolution, sizeof(double), numberColumns, fp); |
---|
4289 | if (nWrite != static_cast< size_t >(numberColumns)) |
---|
4290 | throw("Error in fwrite"); |
---|
4291 | nWrite = fwrite(dualColumnSolution, sizeof(double), numberColumns, fp); |
---|
4292 | if (nWrite != static_cast< size_t >(numberColumns)) |
---|
4293 | throw("Error in fwrite"); |
---|
4294 | fclose(fp); |
---|
4295 | } else { |
---|
4296 | std::cout << "Unable to open file " << fileName << std::endl; |
---|
4297 | } |
---|
4298 | } |
---|
4299 | #endif |
---|
4300 | |
---|
4301 | /* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2 |
---|
4302 | */ |
---|