Method solve

src/openms/source/DATASTRUCTURES/LPWrapper.cpp:521–636

  Int LPWrapper::solve(SolverParam& /*solver_param*/, const Size verbose_level)
#else
  Int LPWrapper::solve(SolverParam& solver_param, const Size /*verbose_level*/)
#endif
  {
    OPENMS_LOG_INFO << "Using solver '" << (solver_ == LPWrapper::SOLVER_GLPK ? "glpk" : "coinor") << "' ...\n";
#if COINOR_SOLVER == 1
//Removed ifdef and OsiOslSolverInterface because Windows couldn't find it/both flags failed. For linux on the other hand the flags worked. But as far as I know we prefer CLP as solver anyway so no need to look for different solvers.
//#ifdef COIN_HAS_CLP
    OsiClpSolverInterface solver;
//#elif COIN_HAS_OSL
//      OsiOslSolverInterface solver;
//#endif
    solver.loadFromCoinModel(*model_);
    /* Now let MIP calculate a solution */
    // Pass to solver
    CbcModel model(solver);
    model.setObjSense(model_->optimizationDirection()); // -1 = maximize, 1=minimize
    model.solver()->setHintParam(OsiDoReducePrint, true, OsiHintTry);

    // Output details
    model.messageHandler()->setLogLevel(verbose_level > 1 ? 2 : 0);
    model.solver()->messageHandler()->setLogLevel(verbose_level > 1 ? 1 : 0);

    //CglProbing generator1;
    //generator1.setUsingObjective(true);
    CglGomory generator2;
    generator2.setLimit(300);
    CglKnapsackCover generator3;
    CglOddHole generator4;
    generator4.setMinimumViolation(0.005);
    generator4.setMinimumViolationPer(0.00002);
    generator4.setMaximumEntries(200);
    CglClique generator5;
    generator5.setStarCliqueReport(false);
    generator5.setRowCliqueReport(false);
    //CglFlowCover flowGen;
    CglMixedIntegerRounding mixedGen;

    // Add in generators (you should prefer the ones used often and disable the others as they increase solution time)
    //model.addCutGenerator(&generator1,-1,"Probing");
    model.addCutGenerator(&generator2, -1, "Gomory");
    model.addCutGenerator(&generator3, -1, "Knapsack");
    //model.addCutGenerator(&generator4,-1,"OddHole"); // segfaults
    model.addCutGenerator(&generator5, -10, "Clique");
    //model.addCutGenerator(&flowGen,-1,"FlowCover");
    model.addCutGenerator(&mixedGen, -1, "MixedIntegerRounding");

    // Heuristics
    CbcRounding heuristic1(model);
    model.addHeuristic(&heuristic1);
    CbcHeuristicLocal heuristic2(model);
    model.addHeuristic(&heuristic2);

    // set maximum allowed CPU time before forced stop (dangerous!)
    //model.setDblParam(CbcModel::CbcMaximumSeconds,60.0*1);
      
    // Do initial solve to continuous
    model.initialSolve();