BonNlpHeuristic.hpp

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/* $Id: BonNlpHeuristic.hpp 988 2013-08-04 20:59:18Z pbelotti $ */
// (C) Copyright International Business Machines Corporation 2007
// All Rights Reserved.
// This code is published under the Eclipse Public License (EPL).
//
// Authors :
// Pierre Bonami, International Business Machines Corporation
//
// Date : 04/09/2007

#ifndef BonIpoptHeuristic_HPP
#define BonIpoptHeuristic_HPP

#include "BonOsiTMINLPInterface.hpp"
#include "CbcHeuristic.hpp"
#include "BonOsiTMINLPInterface.hpp"
#include "CouenneProblem.hpp"

namespace Couenne {

  const double maxNlpInf_0 = 1e-5;

  class NlpSolveHeuristic : public CbcHeuristic{

  public:
    NlpSolveHeuristic();
    NlpSolveHeuristic(CbcModel & mip, Bonmin::OsiTMINLPInterface &nlp, bool cloneNlp = false, CouenneProblem * couenne = NULL);
    NlpSolveHeuristic(const NlpSolveHeuristic &other);
    
    virtual ~NlpSolveHeuristic();
    
    virtual CbcHeuristic * clone() const;
    
    NlpSolveHeuristic & operator=(const NlpSolveHeuristic &rhs);
    
    void setNlp (Bonmin::OsiTMINLPInterface &nlp, bool cloneNlp = true);
    
    void setCouenneProblem(CouenneProblem *);
    virtual void resetModel(CbcModel * model){}
    virtual int solution( double & objectiveValue, double * newSolution);
    void setMaxNlpInf(double value){
      maxNlpInf_ = value;}
    void setNumberSolvePerLevel(int value){
      numberSolvePerLevel_ = value;}

    static void registerOptions (Ipopt::SmartPtr <Bonmin::RegisteredOptions>);

  private:
    Bonmin::OsiTMINLPInterface * nlp_;
    bool hasCloned_;
    double maxNlpInf_;
    int numberSolvePerLevel_;
    CouenneProblem * couenne_;
  };

}

#endif