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1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 5. 
2  The CLP Executable
3  </title><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="CLP User Guide"><link rel="up" href="index.html" title="CLP User Guide"><link rel="prev" href="ch04s02.html" title="Common CLP Tasks in the Samples"><link rel="next" href="ch05s02.html" title="
4  Online Help and Basic Usage
5  "></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 5. 
6  The CLP Executable
7  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch04s02.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="ch05s02.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="clpexe"></a>Chapter 5. 
8  The CLP Executable
9  </h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="ch05.html#id4776091">Quick Start</a></span></dt><dt><span class="section"><a href="ch05s02.html">
10  Online Help and Basic Usage
11  </a></span></dt><dt><span class="section"><a href="ch05s03.html">A Sample Session</a></span></dt></dl></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id4776091"></a>Quick Start</h2></div></div></div><p>
12  The result of <b class="userinput"><tt>make unitTest</tt></b> (executed in
13  <tt class="filename">COIN/Clp</tt>) is an executable
14  <tt class="filename">clp</tt> as well as the CLP and COIN libraries.
15  The executable can be used to perform various unit tests, but can also be used
16  as a standalone solver.  As the executable has a very simple solution file format,
17  the user may wish to modify <tt class="filename">COIN/Clp/Test/ClpMain.cpp</tt>,
18  which contains the source of the executable (modifications could even be
19  offered as a contribution to CLP).
20  </p><p>
21  The <tt class="filename">clp</tt> executable operates in command line mode or
22  prompted mode.  Entering <b class="userinput"><tt>clp</tt></b> will invoke the prompted
23  mode, while <b class="userinput"><tt>clp &lt;filename&gt;</tt></b> will import a problem
24  in MPS format from <tt class="filename">filename</tt>, solve it using the dual
25  simplex method and exit. The command
26  <b class="userinput"><tt>clp &lt;filename&gt; -primalsimplex</tt></b> instructs the
27  executable tp import a file and solve using the primal simplex method.  An
28  additional solitary dash ("<b class="userinput"><tt>-</tt></b>") starts the
29  prompt mode once the execution of the initial command has been completed.  The
30  "<b class="userinput"><tt>-</tt></b>" is necessary as part of the command;
31  invoking prompt mode as a separate command will result in the loss of problem
32  information related to the initial command.  So, the following sequences of commands
33  are equivalent in the sense that both maximize a problem using the dual
34  simplex method and write a solution to file:
35  <tt class="filename">solfile</tt>:
36  </p><div class="blockquote"><blockquote class="blockquote"><div class="literallayout"><p><br>
37    <tt class="prompt">$</tt> <b class="userinput"><tt><span><b class="command">clp</b></span> <i class="replaceable"><tt>filename</tt></i> -maximize -dualsimplex -solution solfile</tt></b><br>
38    </p></div></blockquote></div><p>
39  </p><div class="blockquote"><blockquote class="blockquote"><div class="literallayout"><p><br>
40    <tt class="prompt">$</tt> <b class="userinput"><tt><span><b class="command">clp</b></span> <i class="replaceable"><tt>filename</tt></i> -maximize -</tt></b><br>
41    <tt class="prompt">Clp:</tt><b class="userinput"><tt><span><b class="command">duals</b></span></tt></b><br>
42    <tt class="prompt">Clp:</tt><b class="userinput"><tt><span><b class="command">solution</b></span> solfile</tt></b><br>
43    <tt class="prompt">Clp:</tt><b class="userinput"><tt><span><b class="command">quit</b></span></tt></b><br>
44    </p></div></blockquote></div><p>
45  </p><p>
46  The executable is at a very early stage of development.  Comments and
47  suggestions would be appreciated.
48  </p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch04s02.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch05s02.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Common CLP Tasks in the Samples </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> 
49  Online Help and Basic Usage
50  </td></tr></table></div></body></html>
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