/home/coin/SVN-release/Cbc-2.3.2/Cgl/src/CglGomory/CglGomory.hpp

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00001 // Copyright (C) 2002, International Business Machines
00002 // Corporation and others.  All Rights Reserved.
00003 #ifndef CglGomory_H
00004 #define CglGomory_H
00005 
00006 #include <string>
00007 
00008 #include "CglCutGenerator.hpp"
00009 
00010 class CoinWarmStartBasis;
00012 class CglGomory : public CglCutGenerator {
00013    friend void CglGomoryUnitTest(const OsiSolverInterface * siP,
00014                                   const std::string mpdDir );
00015  
00016 public:
00017     
00018   
00032   virtual void generateCuts( const OsiSolverInterface & si, OsiCuts & cs,
00033                              const CglTreeInfo info = CglTreeInfo()) const;
00036   int generateCuts( const OsiRowCutDebugger * debugger, 
00037                     OsiCuts & cs,
00038                     const CoinPackedMatrix & columnCopy,
00039                     const CoinPackedMatrix & rowCopy,
00040                     const double * objective, const double * colsol,
00041                     const double * colLower, const double * colUpper,
00042                     const double * rowLower, const double * rowUpper,
00043                     const char * intVar ,
00044                     const CoinWarmStartBasis* warm,
00045                     const CglTreeInfo info = CglTreeInfo()) const;
00048   int generateCuts( const OsiRowCutDebugger * debugger, 
00049                     OsiCuts & cs,
00050                     const CoinPackedMatrix & columnCopy,
00051                     const double * objective, const double * colsol,
00052                     const double * colLower, const double * colUpper,
00053                     const double * rowLower, const double * rowUpper,
00054                     const char * intVar ,
00055                     const CoinWarmStartBasis* warm,
00056                     const CglTreeInfo info = CglTreeInfo()) const;
00057 
00059   virtual bool needsOptimalBasis() const;
00061 
00064 
00065   void setLimit(int limit);
00067   int getLimit() const;
00069   void setLimitAtRoot(int limit);
00071   int getLimitAtRoot() const;
00073 
00078 
00079   void setAway(double value);
00081   double getAway() const;
00083   void setAwayAtRoot(double value);
00085   double getAwayAtRoot() const;
00087 
00097 
00098   void setConditionNumberMultiplier(double value);
00100   double getConditionNumberMultiplier() const;
00102   void setLargestFactorMultiplier(double value);
00104   double getLargestFactorMultiplier() const;
00106 
00109 
00110   CglGomory ();
00111  
00113   CglGomory (
00114     const CglGomory &);
00115 
00117   virtual CglCutGenerator * clone() const;
00118 
00120   CglGomory &
00121     operator=(
00122     const CglGomory& rhs);
00123   
00125   virtual
00126     ~CglGomory ();
00128   virtual std::string generateCpp( FILE * fp);
00130       
00131 private:
00132   
00133  // Private member methods
00134 
00135   // Private member data
00136 
00139 
00140   double away_;
00142   double awayAtRoot_;
00144   double conditionNumberMultiplier_;
00146   double largestFactorMultiplier_;
00148   int limit_;
00150   int limitAtRoot_;
00152 };
00153 
00154 //#############################################################################
00160 void CglGomoryUnitTest(const OsiSolverInterface * siP,
00161                         const std::string mpdDir );
00162   
00163 #endif

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