source: branches/Couenne/Couenne/src/problem

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Diff Rev Age Author Log Message
(edit) @525   13 years pbelotti implied bounds: fix some of the infinity handling
(edit) @524   13 years pbelotti rethought the meaning of infinity in implied bounds. Include …
(edit) @515   13 years pbelotti restored infeasible cut to fathom after generateCuts(), this time also …
(edit) @497   13 years pbelotti testing new conv-expr{Sin,Cos}. Added tool for deepest cut in exprPow
(edit) @467   13 years pbelotti fixed comparison of exprGroup
(edit) @460   13 years pbelotti fixed exprMul::generateCuts when one operand is almost constant
(edit) @458   13 years pbelotti call Image () to update auxiliary variables
(edit) @452   13 years pbelotti added CouenneProblem::getAuxs() to get aux variables from original
(edit) @450   13 years pbelotti fixed some bugs in multiplication bounding. Flatten linear expressions
(edit) @445   13 years pbelotti fixed NaN bounds in initAux, added rank and multiplicity to branch …
(edit) @441   13 years pbelotti fixed major problems with implied bounds. One (internal) iteration for …
(edit) @432   13 years pbelotti fixed check in exprPower and fictitious dual bound. Evaluation of …
(edit) @427   13 years pbelotti rolling back to pre-impliedBounds status
(edit) @412   13 years pbelotti limit #calls to bound tightening
(edit) @402   13 years pbelotti enabled implied bound for exprPow, minor fixes in generateCuts()
(edit) @399   13 years pbelotti fixed implied bounds on exprSum
(edit) @395   13 years pbelotti implied bounds for some operators
(edit) @392   13 years pbelotti introduced rank to auxiliary variables for rank-based branching
(edit) @391   13 years pbelotti extended exprGroup to constraints. Fixed a compare() problem with exprGroup
(edit) @389   13 years pbelotti improved detection of common expression, (finally) switched to ASL_fg
(edit) @387   13 years pbelotti stable bound passing
(edit) @382   13 years pbelotti added exprGroup for sums of linear and nonlinear terms; restrict …
(edit) @377   13 years pbelotti fixed cloning methods, initial var/bound passing, LP and NLP handling
(edit) @373   13 years pbelotti avoid branching when low infeasibility; cleared communication with Bonmin
(edit) @364   13 years pbelotti minor fixes, extended products' conv. for lb=ub
(edit) @359   13 years pbelotti check variables close to bounds before branching
(edit) @357   13 years pbelotti fixed some memory leaks
(edit) @356   13 years pbelotti restored OPUMINUS, looking for link between OsiBranchingInfo? and …
(edit) @352   13 years pbelotti update current LP point within subsequent Couenne cut generations. …
(edit) @348   13 years pbelotti clear all psg_elem replacements. Improved constraint print. Correctly …
(edit) @344   13 years pbelotti modified branching point selection. Minor fixes in printing constraints
(edit) @340   13 years pbelotti modified branch point, now solve ex3_1_1. Cut most of the output
(edit) @312   13 years pbelotti fixed exprAbs, extended sample area for exprExp, expr::update() out of …
(edit) @311   13 years pbelotti avoid "defined" variables in CouenneProblem::writeMod()
(edit) @310   13 years pbelotti added CouenneProblem::writeMod() to store ampl file with auxiliaries
(edit) @296   13 years pbelotti auxiliary variables have now an independent copy in CouenneProblem?; …
(edit) @292   13 years pbelotti no more duplicated auxiliary variables, for smaller and tighter …
(edit) @282   13 years pbelotti introduced integer variables
(edit) @271   13 years pbelotti fixed bound creation for divisions
(edit) @259   13 years pbelotti fixed expr{Clone,Copy}::Index() bug
(edit) @243   13 years pbelotti fixed some memory leaks
(edit) @242   13 years pbelotti introduced clone and copy constructor methods for CouenneCutGenerator?
(edit) @240   13 years pbelotti creating clone() and copy constructors for CouenneCutGenerator?
(edit) @239   13 years pbelotti removed some debug printouts
(edit) @235   13 years pbelotti introduced operator fabs(); fixed some issues with .nl reading; …
(edit) @233   13 years pbelotti replaced all generateCuts()
(add) @193   13 years pbonami This time import correctly Pietro Belotti's Couenne module
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