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coin-or
This a mirror of the subversion repository on COIN-OR.
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/81 Dear all, currently I try to test the Cbc solver as an replacement of mine old (commercial) MIP solver. A set...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/50 In stable/1.14, in the isBinary() method of OsiClpSolverInterface?.cpp around line 2718, a comparison of bounds with 1 and 0 is made...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/60 Doesn't occur every time, but generally! Attached qps file. Tested with trunk changeset 1976 and reproduced.
Title: `Assertion triggered - ClpPrimalColumnSteepest.cpp:590: virtual int ClpPrimalColumnSteepest::pivotColumn(CoinIndexedVector*, CoinIndexedVector*, CoinIndexedVector*, CoinIndexedVector*, CoinIndexedVector*): Assertion `model_->reducedCost(bestSequence) > 0.0' failed.` Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/59 Got the `ClpPrimalColumnSteepest?.cpp:590: virtual...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/77  OSICLP trunk version fails to update the solver status on some cases. Please compile and run the attached solve.cpp with...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/54 The attached code reads an LP file, initialSolve(), markHotStart(), change both bounds of variable 11 to 3, solveFromHotStart(), change both bounds...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/53 Hello, first of all this bug report started from this CBC one: https://projects.coin-or.org/Cbc/ticket/115 I add that I tested with the latest...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/79 https://projects.coin-or.org/Clp/attachment/ticket/79/clpfail.lp Dear Clp maintainers, I am using Clp v1.16.1 through the Julia wrapper for doing SDDP (https://github.com/blegat/StochasticDualDynamicProgramming.jl). For that algorithm, when...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/49 Hi, Depending on the version of Clp I use, the small problem at the end of this post (that is created...
Moved from TRAC as part of COIN fORgery: https://projects.coin-or.org/Clp/ticket/83  It seems CLP cannot solve the following problem correctly. the result I get violates the ctr_2 constraint. version: 1.16.10 OS:...