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CglStored Class Reference

Stored Cut Generator Class. More...

#include <CglStored.hpp>

Inheritance diagram for CglStored:
Collaboration diagram for CglStored:

List of all members.

Public Member Functions

Generate Cuts
virtual void generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo()) const
 Generate Mixed Integer Stored cuts for the model of the solver interface, si.
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.
double getRequiredViolation () const
 Get.
void setProbingInfo (CglTreeProbingInfo *info)
 Takes over ownership of probing info.
Cut stuff
void addCut (const OsiCuts &cs)
 Add cuts.
void addCut (const OsiRowCut &cut)
 Add a row cut.
void addCut (double lb, double ub, const CoinPackedVector &vector)
 Add a row cut from a packed vector.
void addCut (double lb, double ub, int size, const int *colIndices, const double *elements)
 Add a row cut from elements.
int sizeRowCuts () const
const OsiRowCut * rowCutPointer (int index) const
void saveStuff (double bestObjective, const double *bestSolution, const double *lower, const double *upper)
 Save stuff.
const double * bestSolution () const
 Best solution (or NULL)
double bestObjective () const
 Best objective.
const double * tightLower () const
 Tight lower bounds.
const double * tightUpper () const
 Tight upper bounds.
Constructors and destructors
 CglStored (int numberColumns=0)
 Default constructor.
 CglStored (const CglStored &rhs)
 Copy constructor.
 CglStored (const char *fileName)
 Constructor from file.
virtual CglCutGeneratorclone () const
 Clone.
CglStoredoperator= (const CglStored &rhs)
 Assignment operator.
virtual ~CglStored ()
 Destructor.

Protected Attributes

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

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() 
) const [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.

void CglStored::setRequiredViolation ( double  value) [inline]

Set.

Definition at line 40 of file CglStored.hpp.

double CglStored::getRequiredViolation ( ) const [inline]

Get.

Definition at line 43 of file CglStored.hpp.

void CglStored::setProbingInfo ( CglTreeProbingInfo info) [inline]

Takes over ownership of probing info.

Definition at line 46 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 [inline]

Definition at line 60 of file CglStored.hpp.

const OsiRowCut* CglStored::rowCutPointer ( int  index) const [inline]

Definition at line 62 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 [inline]

Best solution (or NULL)

Definition at line 68 of file CglStored.hpp.

double CglStored::bestObjective ( ) const

Best objective.

const double* CglStored::tightLower ( ) const [inline]

Tight lower bounds.

Definition at line 73 of file CglStored.hpp.

const double* CglStored::tightUpper ( ) const [inline]

Tight upper bounds.

Definition at line 76 of file CglStored.hpp.

virtual CglCutGenerator* CglStored::clone ( ) const [virtual]

Clone.

Implements CglCutGenerator.

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 112 of file CglStored.hpp.

Pointer to probing information.

Definition at line 114 of file CglStored.hpp.

OsiCuts CglStored::cuts_ [mutable, protected]

Cuts.

Definition at line 116 of file CglStored.hpp.

int CglStored::numberColumns_ [protected]

Number of columns in model.

Definition at line 118 of file CglStored.hpp.

double* CglStored::bestSolution_ [protected]

Best solution (objective at end)

Definition at line 120 of file CglStored.hpp.

double* CglStored::bounds_ [protected]

Tight bounds.

Definition at line 122 of file CglStored.hpp.


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