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CglStored Class Reference

Stored Cut Generator Class. More...

#include <CglStored.hpp>

+ Inheritance diagram for CglStored:
+ Collaboration diagram for CglStored:

Public Member Functions

Generate Cuts
virtual void generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo())
 Generate Mixed Integer Stored cuts for the model of the solver interface, si. More...
Change criterion on whether to include cut.

Violations of more than this will be added to current cut list (default 1.0e-5)

void setRequiredViolation (double value)
 Set. More...
double getRequiredViolation () const
 Get. More...
void setProbingInfo (CglTreeProbingInfo *info)
 Takes over ownership of probing info. More...
Cut stuff
void addCut (const OsiCuts &cs)
 Add cuts. More...
void addCut (const OsiRowCut &cut)
 Add a row cut. More...
void addCut (double lb, double ub, const CoinPackedVector &vector)
 Add a row cut from a packed vector. More...
void addCut (double lb, double ub, int size, const int *colIndices, const double *elements)
 Add a row cut from elements. More...
int sizeRowCuts () const
const OsiRowCutrowCutPointer (int index) const
void saveStuff (double bestObjective, const double *bestSolution, const double *lower, const double *upper)
 Save stuff. More...
const double * bestSolution () const
 Best solution (or NULL) More...
double bestObjective () const
 Best objective. More...
const double * tightLower () const
 Tight lower bounds. More...
const double * tightUpper () const
 Tight upper bounds. More...
Constructors and destructors
 CglStored (int numberColumns=0)
 Default constructor. More...
 CglStored (const CglStored &rhs)
 Copy constructor. More...
 CglStored (const char *fileName)
 Constructor from file. More...
virtual CglCutGeneratorclone () const
 Clone. More...
CglStoredoperator= (const CglStored &rhs)
 Assignment operator. More...
virtual ~CglStored ()
 Destructor. More...
- Public Member Functions inherited from CglCutGenerator
 CglCutGenerator ()
 Default constructor. More...
 CglCutGenerator (const CglCutGenerator &)
 Copy constructor. More...
CglCutGeneratoroperator= (const CglCutGenerator &rhs)
 Assignment operator. More...
virtual ~CglCutGenerator ()
 Destructor. More...
virtual std::string generateCpp (FILE *)
 Create C++ lines to set the generator in the current state. More...
virtual void refreshSolver (OsiSolverInterface *)
 This can be used to refresh any information. More...
int getAggressiveness () const
 Get Aggressiveness - 0 = neutral, 100 is normal root node. More...
void setAggressiveness (int value)
 Set Aggressiveness - 0 = neutral, 100 is normal root node. More...
void setGlobalCuts (bool trueOrFalse)
 Set whether can do global cuts. More...
bool canDoGlobalCuts () const
 Say whether can do global cuts. More...
virtual bool mayGenerateRowCutsInTree () const
 Returns true if may generate Row cuts in tree (rather than root node). More...
virtual bool needsOptimalBasis () const
 Return true if needs optimal basis to do cuts. More...
virtual int maximumLengthOfCutInTree () const
 Return maximum length of cut in tree. More...

Protected Attributes

Protected member data
double requiredViolation_
 Only add if more than this requiredViolation. More...
 Pointer to probing information. More...
OsiCuts cuts_
 Cuts. More...
int numberColumns_
 Number of columns in model. More...
double * bestSolution_
 Best solution (objective at end) More...
double * bounds_
 Tight bounds. More...

Additional Inherited Members

- Public Attributes inherited from CglCutGenerator
int aggressive_
 Aggressiveness - 0 = neutral, 100 is normal root node. More...
bool canDoGlobalCuts_
 True if can do global cuts i.e. no general integers. More...

Detailed Description

Stored Cut Generator Class.

Definition at line 16 of file CglStored.hpp.

Constructor & Destructor Documentation

CglStored::CglStored ( int  numberColumns = 0)

Default constructor.

CglStored::CglStored ( const CglStored rhs)

Copy constructor.

CglStored::CglStored ( const char *  fileName)

Constructor from file.

virtual CglStored::~CglStored ( )


Member Function Documentation

virtual void CglStored::generateCuts ( const OsiSolverInterface si,
OsiCuts cs,
const CglTreeInfo  info = CglTreeInfo() 

Generate Mixed Integer Stored cuts for the model of the solver interface, si.

Insert the generated cuts into OsiCut, cs.

This generator just looks at previously stored cuts and inserts any that are violated by enough

Implements CglCutGenerator.

void CglStored::setRequiredViolation ( double  value)


Definition at line 38 of file CglStored.hpp.

double CglStored::getRequiredViolation ( ) const


Definition at line 43 of file CglStored.hpp.

void CglStored::setProbingInfo ( CglTreeProbingInfo info)

Takes over ownership of probing info.

Definition at line 48 of file CglStored.hpp.

void CglStored::addCut ( const OsiCuts cs)

Add cuts.

void CglStored::addCut ( const OsiRowCut cut)

Add a row cut.

void CglStored::addCut ( double  lb,
double  ub,
const CoinPackedVector vector 

Add a row cut from a packed vector.

void CglStored::addCut ( double  lb,
double  ub,
int  size,
const int *  colIndices,
const double *  elements 

Add a row cut from elements.

int CglStored::sizeRowCuts ( ) const

Definition at line 64 of file CglStored.hpp.

const OsiRowCut* CglStored::rowCutPointer ( int  index) const

Definition at line 68 of file CglStored.hpp.

void CglStored::saveStuff ( double  bestObjective,
const double *  bestSolution,
const double *  lower,
const double *  upper 

Save stuff.

const double* CglStored::bestSolution ( ) const

Best solution (or NULL)

Definition at line 76 of file CglStored.hpp.

double CglStored::bestObjective ( ) const

Best objective.

const double* CglStored::tightLower ( ) const

Tight lower bounds.

Definition at line 83 of file CglStored.hpp.

const double* CglStored::tightUpper ( ) const

Tight upper bounds.

Definition at line 88 of file CglStored.hpp.

virtual CglCutGenerator* CglStored::clone ( ) const


Implements CglCutGenerator.

CglStored& CglStored::operator= ( const CglStored rhs)

Assignment operator.

Member Data Documentation

double CglStored::requiredViolation_

Only add if more than this requiredViolation.

Definition at line 124 of file CglStored.hpp.

CglTreeProbingInfo* CglStored::probingInfo_

Pointer to probing information.

Definition at line 126 of file CglStored.hpp.

OsiCuts CglStored::cuts_


Definition at line 128 of file CglStored.hpp.

int CglStored::numberColumns_

Number of columns in model.

Definition at line 130 of file CglStored.hpp.

double* CglStored::bestSolution_

Best solution (objective at end)

Definition at line 132 of file CglStored.hpp.

double* CglStored::bounds_

Tight bounds.

Definition at line 134 of file CglStored.hpp.

The documentation for this class was generated from the following file: