CbcSolverHeuristics.hpp

/* $Id: CbcSolverHeuristics.hpp 1902 2013-04-10 16:58:16Z stefan $ */
// Copyright (C) 2007, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).


/*! \file CbcSolverHeuristics.hpp
    \brief Routines for doing heuristics.
*/


#ifndef CbcSolverHeuristics_H
#define CbcSolverHeuristics_H


void crunchIt(ClpSimplex * model);

/*
  On input
  doAction - 0 just fix in original and return NULL
             1 return fixed non-presolved solver
             2 as one but use presolve Inside this
	     3 use presolve and fix ones with large cost
             ? do heuristics and set best solution
	     ? do BAB and just set best solution
	     10+ then use lastSolution and relax a few
             -2 cleanup afterwards if using 2
  On output - number fixed
*/
OsiClpSolverInterface *
fixVubs(CbcModel & model, int skipZero2,
        int & doAction,
        CoinMessageHandler * /*generalMessageHandler*/,
        const double * lastSolution, double dextra[6],
        int extra[5]);
        
    /** 1 - add heuristics to model
        2 - do heuristics (and set cutoff and best solution)
        3 - for miplib test so skip some
        (out model later)
    */
int doHeuristics(CbcModel * model, int type, CbcOrClpParam *parameters_,
		 int numberParameters_,int noPrinting_,int initialPumpTune) ;


#endif  //CbcSolverHeuristics_H