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
	Add cuts. More...

const OsiRowCut *	rowCutPointer (int index) const
	Add cuts. More...

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 CglCutGenerator *	clone () const
	Clone. More...

CglStored &	operator= (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...

CglCutGenerator &	operator= (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...

CglTreeProbingInfo *	probingInfo_
	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 ( )

virtual

Destructor.

Member Function Documentation

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

virtual

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.

Reimplemented in CglTemporary.

void CglStored::setRequiredViolation ( double value )

inline

Set.

Definition at line 38 of file CglStored.hpp.

double CglStored::getRequiredViolation ( ) const

inline

Get.

Definition at line 43 of file CglStored.hpp.

References requiredViolation_.

void CglStored::setProbingInfo ( CglTreeProbingInfo * info )

inline

Takes over ownership of probing info.

Definition at line 48 of file CglStored.hpp.

References probingInfo_.

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

inline

Add cuts.

Definition at line 64 of file CglStored.hpp.

References cuts_, and OsiCuts::sizeRowCuts().

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

inline

Add cuts.

Definition at line 68 of file CglStored.hpp.

References cuts_, and OsiCuts::rowCutPtr().

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

Save stuff.

const double* CglStored::bestSolution ( ) const

inline

Best solution (or NULL)

Definition at line 76 of file CglStored.hpp.

References bestSolution_.

double CglStored::bestObjective ( ) const

Best objective.

const double* CglStored::tightLower ( ) const

inline

Tight lower bounds.

Definition at line 83 of file CglStored.hpp.

References bounds_.

const double* CglStored::tightUpper ( ) const

inline

Tight upper bounds.

Definition at line 88 of file CglStored.hpp.

References bounds_, and numberColumns_.

virtual CglCutGenerator* CglStored::clone ( ) const

virtual

Clone.

Implements CglCutGenerator.

Reimplemented in CglTemporary.

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

Assignment operator.

Member Data Documentation

double CglStored::requiredViolation_

protected

Only add if more than this requiredViolation.

Definition at line 124 of file CglStored.hpp.

Referenced by getRequiredViolation().

CglTreeProbingInfo* CglStored::probingInfo_

protected

Pointer to probing information.

Definition at line 126 of file CglStored.hpp.

Referenced by setProbingInfo().

OsiCuts CglStored::cuts_

protected

Cuts.

Definition at line 128 of file CglStored.hpp.

Referenced by rowCutPointer(), and sizeRowCuts().

int CglStored::numberColumns_

protected

Number of columns in model.

Definition at line 130 of file CglStored.hpp.

Referenced by tightUpper().

double* CglStored::bestSolution_

protected

Best solution (objective at end)

Definition at line 132 of file CglStored.hpp.

Referenced by bestSolution().

double* CglStored::bounds_

protected

Tight bounds.

Definition at line 134 of file CglStored.hpp.

Referenced by tightLower(), and tightUpper().

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

/tmp/Dip-0.92.4/Cgl/src/CglStored.hpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation