source: branches/Couenne/Couenne/src/branch

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Diff Rev Age Author Log Message
(edit) @531   13 years pbelotti added reduced cost fixing. Separated bound tightening from …
(edit) @515   13 years pbelotti restored infeasible cut to fathom after generateCuts(), this time also …
(edit) @499   13 years pbelotti update arrays before calling getFixVar
(edit) @498   13 years pbelotti fixed serious bug with x(2k+1)
(edit) @497   13 years pbelotti testing new conv-expr{Sin,Cos}. Added tool for deepest cut in exprPow
(edit) @480   13 years pbelotti fixed exprPow::standardize. Introduced better convexification for …
(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) @439   13 years pbelotti due to Clp, limit rhs and coefficients to 1e20 in …
(edit) @437   13 years pbelotti still some numerical problems in branching
(edit) @436   13 years pbelotti sort operands in commutative operators for better matching. Branch on …
(edit) @432   13 years pbelotti fixed check in exprPower and fictitious dual bound. Evaluation of …
(edit) @422   13 years pbelotti fixed evaluation and cut generation problems in alan and other instances
(edit) @417   13 years pbelotti added exprGroup to CouenneObject::feasibleRegion() fixing
(edit) @416   13 years pbonami fix in feasibleRegion
(edit) @400   13 years pbelotti fixed implied bounds in expr{Abs,Inv}, made generateCuts() depend on …
(edit) @399   13 years pbelotti fixed implied bounds on exprSum
(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) @360   13 years pbelotti fixed wrong 0 lb to <= constraints
(edit) @359   13 years pbelotti check variables close to bounds before branching
(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) @344   13 years pbelotti modified branching point selection. Minor fixes in printing constraints
(edit) @341   13 years pbelotti reduced size of all unary expr*, changed Indtoa for x86_64
(edit) @340   13 years pbelotti modified branch point, now solve ex3_1_1. Cut most of the output
(edit) @335   13 years pbonami Several fixes, can solve ex2_1_1
(edit) @330   13 years pbelotti added branch selection rules for expr{Mul,Div}
(edit) @323   13 years pbelotti added branching objects, compressed expr{Min,Max}.cpp
(edit) @321   13 years pbelotti delegating choice of index to simple expressions
(edit) @318   13 years pbelotti now handle correctly AMPL partially separable structures
(add) @315   13 years pbelotti started CouenneBranchingObject? and CouenneChooseVariable? for …
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