BASE CLASS FOR THE IMPROVED SIMPLEX. More...

#include <ClpPESimplex.hpp>

Public Member Functions
	ClpPESimplex (ClpSimplex *model)
	Constructor. More...

	~ClpPESimplex ()
	Destructor. More...

int	coPrimalDegenerates ()
	BASIC GET METHODS. More...

int	coDualDegenerates ()

int	coCompatibleCols ()

int	coCompatibleRows ()

bool	isCompatibleCol (int sequence)

bool	isCompatibleRow (int row)

ClpSimplex *	clpModel ()

bool	checkSize ()

void	updatePrimalDegenerates ()
	PUBLIC METHODS RELATED TO COMPATIBILITY. More...

void	updateDualDegenerates ()
	Updates the set of dual degenerate variables. More...

void	identifyCompatibleCols (int number, const int which, CoinIndexedVector spareRow2, CoinIndexedVector *wPrimal)
	Identify the primal compatible columns The input argument is a temporary array that is needed for the Clp's BTRAN. More...

void	identifyCompatibleRows (CoinIndexedVector spare, CoinIndexedVector wDual)
	Identify the dual compatible rows. More...

void	updateCompatibleRows (int sequence)
	Update the dual compatible rows. More...

bool	checkCompatibilityRow (int pivotRow)
	DEBUG AND DISPLAY METHODS. More...

double	lastObjectiveValue ()
	Tracking the degenerate iterations after compatible pivots. More...

void	updateLastObjectiveValue ()

bool	isDegeneratePivot ()

bool	isLastPivotCompatible ()

void	isLastPivotCompatible (bool yesOrNo)

void	startTimer ()
	Start and stop the timer, and print the total recorded time. More...

void	stopTimer ()

void	printTimer (std::ostream &out)

double	timeMultRandom ()

double	timeLinearSystem ()

double	timeCompatibility ()

void	addDegeneratePivot ()
	Update and return the number of degenerate pivots and variables. More...

int	coDegeneratePivots ()

void	addDegeneratePivotConsecutive ()

void	resetDegeneratePivotsConsecutive ()

int	coDegeneratePivotsConsecutive ()

void	updateDualDegeneratesAvg (int coPivots)

double	coDualDegeneratesAvg ()

void	updatePrimalDegeneratesAvg (int coPivots)

double	coPrimalDegeneratesAvg ()

double	coCompatibleRowsAvg ()

void	updateCompatibleRowsAvg (int coPivots)

double	coCompatibleColsAvg ()

void	updateCompatibleColsAvg (int coPivots)

int	coCompatiblePivots ()

void	addCompatiblePivot ()

int	coDegenerateCompatiblePivots ()

void	addDegenerateCompatiblePivot ()

void	addPriorityPivot ()

int	coPriorityPivots ()

int	doStatistics () const

void	setDoStatistics (int value)

Protected Attributes
int	coPrimalDegenerates_
	Indices of the variables that were not at one of their bounds during the last update (non primal degenerate variables) More...

int *	primalDegenerates_

bool *	isPrimalDegenerate_

int	coDualDegenerates_
	Indices of the non basic variables with a zero reduced cost during the last update (ndual-degenerate variables) More...

int *	dualDegenerates_

bool *	isDualDegenerate_

int	coCompatibleCols_
	Table of booleans indicating whether each variable is primal compatible (true) or not (false) More...

double *	compatibilityCol_

bool *	isCompatibleCol_

int	coCompatibleRows_
	Table of booleans indicating whether each constraint is dual compatible (true) or not (false) More...

double *	compatibilityRow_

bool *	isCompatibleRow_

Detailed Description

BASE CLASS FOR THE IMPROVED SIMPLEX.

Definition at line 42 of file ClpPESimplex.hpp.

Constructor & Destructor Documentation

◆ ClpPESimplex()

ClpPESimplex::ClpPESimplex ( ClpSimplex * model )

Constructor.

◆ ~ClpPESimplex()

ClpPESimplex::~ClpPESimplex ( )

Destructor.

Member Function Documentation

◆ coPrimalDegenerates()

int ClpPESimplex::coPrimalDegenerates ( )

inline

BASIC GET METHODS.

Definition at line 53 of file ClpPESimplex.hpp.

◆ coDualDegenerates()

int ClpPESimplex::coDualDegenerates ( )

inline

Definition at line 54 of file ClpPESimplex.hpp.

◆ coCompatibleCols()

int ClpPESimplex::coCompatibleCols ( )

inline

Definition at line 55 of file ClpPESimplex.hpp.

◆ coCompatibleRows()

int ClpPESimplex::coCompatibleRows ( )

inline

Definition at line 56 of file ClpPESimplex.hpp.

◆ isCompatibleCol()

bool ClpPESimplex::isCompatibleCol ( int sequence )

inline

Definition at line 58 of file ClpPESimplex.hpp.

◆ isCompatibleRow()

bool ClpPESimplex::isCompatibleRow ( int row )

inline

Definition at line 59 of file ClpPESimplex.hpp.

◆ clpModel()

ClpSimplex* ClpPESimplex::clpModel ( )

inline

Definition at line 65 of file ClpPESimplex.hpp.

◆ checkSize()

bool ClpPESimplex::checkSize ( )

◆ updatePrimalDegenerates()

void ClpPESimplex::updatePrimalDegenerates ( )

PUBLIC METHODS RELATED TO COMPATIBILITY.

Updates the set of variables that are not at their bounds

◆ updateDualDegenerates()

void ClpPESimplex::updateDualDegenerates ( )

Updates the set of dual degenerate variables.

◆ identifyCompatibleCols()

void ClpPESimplex::identifyCompatibleCols	(	int	number,
		const int *	which,
		CoinIndexedVector *	spareRow2,
		CoinIndexedVector *	wPrimal
	)

Identify the primal compatible columns The input argument is a temporary array that is needed for the Clp's BTRAN.

◆ identifyCompatibleRows()

void ClpPESimplex::identifyCompatibleRows	(	CoinIndexedVector *	spare,
		CoinIndexedVector *	wDual
	)

Identify the dual compatible rows.

◆ updateCompatibleRows()

void ClpPESimplex::updateCompatibleRows ( int sequence )

Update the dual compatible rows.

◆ checkCompatibilityRow()

bool ClpPESimplex::checkCompatibilityRow ( int pivotRow )

DEBUG AND DISPLAY METHODS.

Check that a basic row is indeed compatible

◆ lastObjectiveValue()

double ClpPESimplex::lastObjectiveValue ( )

inline

Tracking the degenerate iterations after compatible pivots.

Definition at line 106 of file ClpPESimplex.hpp.

◆ updateLastObjectiveValue()

void ClpPESimplex::updateLastObjectiveValue ( )

inline

Definition at line 107 of file ClpPESimplex.hpp.

◆ isDegeneratePivot()

bool ClpPESimplex::isDegeneratePivot ( )

inline

Definition at line 108 of file ClpPESimplex.hpp.

◆ isLastPivotCompatible() [1/2]

bool ClpPESimplex::isLastPivotCompatible ( )

inline

Definition at line 109 of file ClpPESimplex.hpp.

◆ isLastPivotCompatible() [2/2]

void ClpPESimplex::isLastPivotCompatible ( bool yesOrNo )

inline

Definition at line 110 of file ClpPESimplex.hpp.

◆ startTimer()

void ClpPESimplex::startTimer ( )

inline

Start and stop the timer, and print the total recorded time.

Definition at line 113 of file ClpPESimplex.hpp.

◆ stopTimer()

void ClpPESimplex::stopTimer ( )

inline

Definition at line 114 of file ClpPESimplex.hpp.

◆ printTimer()

void ClpPESimplex::printTimer ( std::ostream & out )

◆ timeMultRandom()

double ClpPESimplex::timeMultRandom ( )

inline

Definition at line 116 of file ClpPESimplex.hpp.

◆ timeLinearSystem()

double ClpPESimplex::timeLinearSystem ( )

inline

Definition at line 117 of file ClpPESimplex.hpp.

◆ timeCompatibility()

double ClpPESimplex::timeCompatibility ( )

inline

Definition at line 118 of file ClpPESimplex.hpp.

◆ addDegeneratePivot()

void ClpPESimplex::addDegeneratePivot ( )

inline

Update and return the number of degenerate pivots and variables.

Definition at line 121 of file ClpPESimplex.hpp.

◆ coDegeneratePivots()

int ClpPESimplex::coDegeneratePivots ( )

inline

Definition at line 122 of file ClpPESimplex.hpp.

◆ addDegeneratePivotConsecutive()

void ClpPESimplex::addDegeneratePivotConsecutive ( )

inline

Definition at line 123 of file ClpPESimplex.hpp.

◆ resetDegeneratePivotsConsecutive()

void ClpPESimplex::resetDegeneratePivotsConsecutive ( )

inline

Definition at line 124 of file ClpPESimplex.hpp.

◆ coDegeneratePivotsConsecutive()

int ClpPESimplex::coDegeneratePivotsConsecutive ( )

inline

Definition at line 125 of file ClpPESimplex.hpp.

◆ updateDualDegeneratesAvg()

void ClpPESimplex::updateDualDegeneratesAvg ( int coPivots )

◆ coDualDegeneratesAvg()

double ClpPESimplex::coDualDegeneratesAvg ( )

inline

Definition at line 127 of file ClpPESimplex.hpp.

◆ updatePrimalDegeneratesAvg()

void ClpPESimplex::updatePrimalDegeneratesAvg ( int coPivots )

◆ coPrimalDegeneratesAvg()

double ClpPESimplex::coPrimalDegeneratesAvg ( )

inline

Definition at line 129 of file ClpPESimplex.hpp.

◆ coCompatibleRowsAvg()

double ClpPESimplex::coCompatibleRowsAvg ( )

inline

Definition at line 130 of file ClpPESimplex.hpp.

◆ updateCompatibleRowsAvg()

void ClpPESimplex::updateCompatibleRowsAvg ( int coPivots )

◆ coCompatibleColsAvg()

double ClpPESimplex::coCompatibleColsAvg ( )

inline

Definition at line 132 of file ClpPESimplex.hpp.

◆ updateCompatibleColsAvg()

void ClpPESimplex::updateCompatibleColsAvg ( int coPivots )

◆ coCompatiblePivots()

int ClpPESimplex::coCompatiblePivots ( )

inline

Definition at line 134 of file ClpPESimplex.hpp.

◆ addCompatiblePivot()

void ClpPESimplex::addCompatiblePivot ( )

inline

Definition at line 135 of file ClpPESimplex.hpp.

◆ coDegenerateCompatiblePivots()

int ClpPESimplex::coDegenerateCompatiblePivots ( )

inline

Definition at line 136 of file ClpPESimplex.hpp.

◆ addDegenerateCompatiblePivot()

void ClpPESimplex::addDegenerateCompatiblePivot ( )

inline

Definition at line 137 of file ClpPESimplex.hpp.

◆ addPriorityPivot()

void ClpPESimplex::addPriorityPivot ( )

inline

Definition at line 140 of file ClpPESimplex.hpp.

◆ coPriorityPivots()

int ClpPESimplex::coPriorityPivots ( )

inline

Definition at line 141 of file ClpPESimplex.hpp.

◆ doStatistics()

int ClpPESimplex::doStatistics ( ) const

inline

Definition at line 142 of file ClpPESimplex.hpp.

◆ setDoStatistics()

void ClpPESimplex::setDoStatistics ( int value )

inline

Definition at line 146 of file ClpPESimplex.hpp.

Member Data Documentation

◆ coPrimalDegenerates_

int ClpPESimplex::coPrimalDegenerates_

protected

Indices of the variables that were not at one of their bounds during the last update (non primal degenerate variables)

Definition at line 154 of file ClpPESimplex.hpp.

◆ primalDegenerates_

int* ClpPESimplex::primalDegenerates_

protected

Definition at line 155 of file ClpPESimplex.hpp.

◆ isPrimalDegenerate_

bool* ClpPESimplex::isPrimalDegenerate_

protected

Definition at line 156 of file ClpPESimplex.hpp.

◆ coDualDegenerates_

int ClpPESimplex::coDualDegenerates_

protected

Indices of the non basic variables with a zero reduced cost during the last update (ndual-degenerate variables)

Definition at line 160 of file ClpPESimplex.hpp.

◆ dualDegenerates_

int* ClpPESimplex::dualDegenerates_

protected

Definition at line 161 of file ClpPESimplex.hpp.

◆ isDualDegenerate_

bool* ClpPESimplex::isDualDegenerate_

protected

Definition at line 162 of file ClpPESimplex.hpp.

◆ coCompatibleCols_

int ClpPESimplex::coCompatibleCols_

protected

Table of booleans indicating whether each variable is primal compatible (true) or not (false)

Definition at line 166 of file ClpPESimplex.hpp.

◆ compatibilityCol_

double* ClpPESimplex::compatibilityCol_

protected

Definition at line 167 of file ClpPESimplex.hpp.

◆ isCompatibleCol_

bool* ClpPESimplex::isCompatibleCol_

protected

Definition at line 168 of file ClpPESimplex.hpp.

◆ coCompatibleRows_

int ClpPESimplex::coCompatibleRows_

protected

Table of booleans indicating whether each constraint is dual compatible (true) or not (false)

Definition at line 172 of file ClpPESimplex.hpp.

◆ compatibilityRow_

double* ClpPESimplex::compatibilityRow_

protected

Definition at line 173 of file ClpPESimplex.hpp.

◆ isCompatibleRow_

bool* ClpPESimplex::isCompatibleRow_

protected

Definition at line 174 of file ClpPESimplex.hpp.

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

src/ClpPESimplex.hpp

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ClpPESimplex()

◆ ~ClpPESimplex()

Member Function Documentation

◆ coPrimalDegenerates()

◆ coDualDegenerates()

◆ coCompatibleCols()

◆ coCompatibleRows()

◆ isCompatibleCol()

◆ isCompatibleRow()

◆ clpModel()

◆ checkSize()

◆ updatePrimalDegenerates()

◆ updateDualDegenerates()

◆ identifyCompatibleCols()

◆ identifyCompatibleRows()

◆ updateCompatibleRows()

◆ checkCompatibilityRow()

◆ lastObjectiveValue()

◆ updateLastObjectiveValue()

◆ isDegeneratePivot()

◆ isLastPivotCompatible() [1/2]

◆ isLastPivotCompatible() [2/2]

◆ startTimer()

◆ stopTimer()

◆ printTimer()

◆ timeMultRandom()

◆ timeLinearSystem()

◆ timeCompatibility()

◆ addDegeneratePivot()

◆ coDegeneratePivots()

◆ addDegeneratePivotConsecutive()

◆ resetDegeneratePivotsConsecutive()

◆ coDegeneratePivotsConsecutive()

◆ updateDualDegeneratesAvg()

◆ coDualDegeneratesAvg()

◆ updatePrimalDegeneratesAvg()

◆ coPrimalDegeneratesAvg()

◆ coCompatibleRowsAvg()

◆ updateCompatibleRowsAvg()

◆ coCompatibleColsAvg()

◆ updateCompatibleColsAvg()

◆ coCompatiblePivots()

◆ addCompatiblePivot()

◆ coDegenerateCompatiblePivots()

◆ addDegenerateCompatiblePivot()

◆ addPriorityPivot()

◆ coPriorityPivots()

◆ doStatistics()

◆ setDoStatistics()

Member Data Documentation

◆ coPrimalDegenerates_

◆ primalDegenerates_

◆ isPrimalDegenerate_

◆ coDualDegenerates_

◆ dualDegenerates_

◆ isDualDegenerate_

◆ coCompatibleCols_

◆ compatibilityCol_

◆ isCompatibleCol_

◆ coCompatibleRows_

◆ compatibilityRow_

◆ isCompatibleRow_