This implements Gub rows plus a ClpPackedMatrix. More...

#include <ClpGubDynamicMatrix.hpp>

Inheritance diagram for ClpGubDynamicMatrix:

Collaboration diagram for ClpGubDynamicMatrix:

Public Member Functions
Main functions provided
virtual void	partialPricing (ClpSimplex *model, double start, double end, int &bestSequence, int &numberWanted)
	Partial pricing. More...

virtual int	synchronize (ClpSimplex *model, int mode)
	This is local to Gub to allow synchronization: mode=0 when status of basis is good mode=1 when variable is flagged mode=2 when all variables unflagged (returns number flagged) mode=3 just reset costs (primal) mode=4 correct number of dual infeasibilities mode=5 return 4 if time to re-factorize mode=8 - make sure set is clean mode=9 - adjust lower, upper on set by incoming. More...

virtual void	useEffectiveRhs (ClpSimplex *model, bool cheapest=true)
	Sets up an effective RHS and does gub crash if needed. More...

virtual int	updatePivot (ClpSimplex *model, double oldInValue, double oldOutValue)
	update information for a pivot (and effective rhs) More...

void	insertNonBasic (int sequence, int iSet)
	Add a new variable to a set. More...

virtual double *	rhsOffset (ClpSimplex *model, bool forceRefresh=false, bool check=false)
	Returns effective RHS offset if it is being used. More...

virtual void	times (double scalar, const double x, double y) const
	Return `y + A * scalar *x` in `y`. More...

virtual int	checkFeasible (ClpSimplex *model, double &sum) const
	Just for debug Returns sum and number of primal infeasibilities. More...

void	cleanData (ClpSimplex *model)
	Cleans data after setWarmStart. More...

Constructors, destructor
	ClpGubDynamicMatrix ()
	Default constructor. More...

virtual	~ClpGubDynamicMatrix ()
	Destructor. More...

Copy method
	ClpGubDynamicMatrix (const ClpGubDynamicMatrix &)
	The copy constructor. More...

	ClpGubDynamicMatrix (ClpSimplex model, int numberSets, int numberColumns, const int starts, const double lower, const double upper, const CoinBigIndex startColumn, const int row, const double element, const double cost, const double lowerColumn=NULL, const double upperColumn=NULL, const unsigned char *status=NULL)
	This is the real constructor. More...

ClpGubDynamicMatrix &	operator= (const ClpGubDynamicMatrix &)

virtual ClpMatrixBase *	clone () const
	Clone. More...

Public Member Functions inherited from ClpGubMatrix
virtual ClpMatrixBase *	reverseOrderedCopy () const
	Returns a new matrix in reverse order without gaps (GUB wants NULL) More...

virtual int	countBasis (const int *whichColumn, int &numberColumnBasic)
	Returns number of elements in column part of basis. More...

virtual void	fillBasis (ClpSimplex model, const int whichColumn, int &numberColumnBasic, int row, int start, int rowCount, int columnCount, CoinFactorizationDouble *element)
	Fills in column part of basis. More...

virtual void	unpack (const ClpSimplex model, CoinIndexedVector rowArray, int column) const
	Unpacks a column into an CoinIndexedvector. More...

virtual void	unpackPacked (ClpSimplex model, CoinIndexedVector rowArray, int column) const
	Unpacks a column into an CoinIndexedvector in packed foramt Note that model is NOT const. More...

virtual void	add (const ClpSimplex model, CoinIndexedVector rowArray, int column, double multiplier) const
	Adds multiple of a column into an CoinIndexedvector You can use quickAdd to add to vector. More...

virtual void	add (const ClpSimplex model, double array, int column, double multiplier) const
	Adds multiple of a column into an array. More...

virtual int	hiddenRows () const
	Returns number of hidden rows e.g. gub. More...

virtual void	transposeTimes (const ClpSimplex model, double scalar, const CoinIndexedVector x, CoinIndexedVector y, CoinIndexedVector z) const
	Return `x * scalar * A + y` in `z`. More...

virtual void	transposeTimesByRow (const ClpSimplex model, double scalar, const CoinIndexedVector x, CoinIndexedVector y, CoinIndexedVector z) const
	Return `x * scalar * A + y` in `z`. More...

virtual void	subsetTransposeTimes (const ClpSimplex model, const CoinIndexedVector x, const CoinIndexedVector y, CoinIndexedVector z) const
	Return `x *A` in `z` but just for indices in y. More...

virtual int	extendUpdated (ClpSimplex model, CoinIndexedVector update, int mode)
	expands an updated column to allow for extra rows which the main solver does not know about and returns number added if mode 0. More...

virtual void	primalExpanded (ClpSimplex *model, int mode)
	mode=0 - Set up before "update" and "times" for primal solution using extended rows mode=1 - Cleanup primal solution after "times" using extended rows. More...

virtual void	dualExpanded (ClpSimplex model, CoinIndexedVector array, double *other, int mode)
	mode=0 - Set up before "updateTranspose" and "transposeTimes" for duals using extended updates array (and may use other if dual values pass) mode=1 - Update dual solution after "transposeTimes" using extended rows. More...

virtual int	generalExpanded (ClpSimplex *model, int mode, int &number)
	mode=0 - Create list of non-key basics in pivotVariable_ using number as numberBasic in and out mode=1 - Set all key variables as basic mode=2 - return number extra rows needed, number gives maximum number basic mode=3 - before replaceColumn mode=4 - return 1 if can do primal, 2 if dual, 3 if both mode=5 - save any status stuff (when in good state) mode=6 - restore status stuff mode=7 - flag given variable (normally sequenceIn) mode=8 - unflag all variables mode=9 - synchronize costs mode=10 - return 1 if there may be changing bounds on variable (column generation) mode=11 - make sure set is clean (used when a variable rejected - but not flagged) mode=12 - after factorize but before permute stuff mode=13 - at end of simplex to delete stuff More...

virtual void	correctSequence (const ClpSimplex *model, int &sequenceIn, int &sequenceOut)
	Correct sequence in and out to give true value. More...

	ClpGubMatrix ()
	Default constructor. More...

virtual	~ClpGubMatrix ()
	Destructor. More...

	ClpGubMatrix (const ClpGubMatrix &)
	The copy constructor. More...

	ClpGubMatrix (const CoinPackedMatrix &)
	The copy constructor from an CoinPackedMatrix. More...

	ClpGubMatrix (const ClpGubMatrix &wholeModel, int numberRows, const int whichRows, int numberColumns, const int whichColumns)
	Subset constructor (without gaps). More...

	ClpGubMatrix (const CoinPackedMatrix &wholeModel, int numberRows, const int whichRows, int numberColumns, const int whichColumns)

	ClpGubMatrix (CoinPackedMatrix *matrix)
	This takes over ownership (for space reasons) More...

	ClpGubMatrix (ClpPackedMatrix matrix, int numberSets, const int start, const int end, const double lower, const double upper, const unsigned char status=NULL)
	This takes over ownership (for space reasons) and is the real constructor. More...

ClpGubMatrix &	operator= (const ClpGubMatrix &)

virtual ClpMatrixBase *	subsetClone (int numberRows, const int whichRows, int numberColumns, const int whichColumns) const
	Subset clone (without gaps). More...

void	redoSet (ClpSimplex *model, int newKey, int oldKey, int iSet)
	redoes next_ for a set. More...

ClpSimplex::Status	getStatus (int sequence) const
	Status. More...

void	setStatus (int sequence, ClpSimplex::Status status)

void	setFlagged (int sequence)
	To flag a variable. More...

void	clearFlagged (int sequence)

bool	flagged (int sequence) const

void	setAbove (int sequence)
	To say key is above ub. More...

void	setFeasible (int sequence)
	To say key is feasible. More...

void	setBelow (int sequence)
	To say key is below lb. More...

double	weight (int sequence) const

int *	start () const
	Starts. More...

int *	end () const
	End. More...

double *	lower () const
	Lower bounds on sets. More...

double *	upper () const
	Upper bounds on sets. More...

int *	keyVariable () const
	Key variable of set. More...

int *	backward () const
	Backward pointer to set number. More...

int	numberSets () const
	Number of sets (gub rows) More...

void	switchOffCheck ()
	Switches off dj checking each factorization (for BIG models) More...

Public Member Functions inherited from ClpPackedMatrix
virtual CoinPackedMatrix *	getPackedMatrix () const
	Return a complete CoinPackedMatrix. More...

virtual bool	isColOrdered () const
	Whether the packed matrix is column major ordered or not. More...

virtual CoinBigIndex	getNumElements () const
	Number of entries in the packed matrix. More...

virtual int	getNumCols () const
	Number of columns. More...

virtual int	getNumRows () const
	Number of rows. More...

virtual const double *	getElements () const
	A vector containing the elements in the packed matrix. More...

double *	getMutableElements () const
	Mutable elements. More...

virtual const int *	getIndices () const
	A vector containing the minor indices of the elements in the packed matrix. More...

virtual const CoinBigIndex *	getVectorStarts () const

virtual const int *	getVectorLengths () const
	The lengths of the major-dimension vectors. More...

virtual int	getVectorLength (int index) const
	The length of a single major-dimension vector. More...

virtual void	deleteCols (const int numDel, const int *indDel)
	Delete the columns whose indices are listed in `indDel`. More...

virtual void	deleteRows (const int numDel, const int *indDel)
	Delete the rows whose indices are listed in `indDel`. More...

virtual void	appendCols (int number, const CoinPackedVectorBase const columns)
	Append Columns. More...

virtual void	appendRows (int number, const CoinPackedVectorBase const rows)
	Append Rows. More...

virtual int	appendMatrix (int number, int type, const CoinBigIndex starts, const int index, const double *element, int numberOther=-1)
	Append a set of rows/columns to the end of the matrix. More...

virtual void	replaceVector (const int index, const int numReplace, const double *newElements)
	Replace the elements of a vector. More...

virtual void	modifyCoefficient (int row, int column, double newElement, bool keepZero=false)
	Modify one element of packed matrix. More...

virtual int	scale (ClpModel model, ClpSimplex simplex=NULL) const
	Creates scales for column copy (rowCopy in model may be modified) returns non-zero if no scaling done. More...

virtual void	scaleRowCopy (ClpModel *model) const
	Scales rowCopy if column copy scaled Only called if scales already exist. More...

void	createScaledMatrix (ClpSimplex *model) const
	Creates scaled column copy if scales exist. More...

virtual ClpMatrixBase *	scaledColumnCopy (ClpModel *model) const
	Realy really scales column copy Only called if scales already exist. More...

virtual bool	allElementsInRange (ClpModel *model, double smallest, double largest, int check=15)
	Checks if all elements are in valid range. More...

virtual void	rangeOfElements (double &smallestNegative, double &largestNegative, double &smallestPositive, double &largestPositive)
	Returns largest and smallest elements of both signs. More...

virtual void	releasePackedMatrix () const
	Allow any parts of a created CoinPackedMatrix to be deleted. More...

virtual CoinBigIndex *	dubiousWeights (const ClpSimplex model, int inputWeights) const
	Given positive integer weights for each row fills in sum of weights for each column (and slack). More...

virtual bool	canDoPartialPricing () const
	Says whether it can do partial pricing. More...

virtual int	refresh (ClpSimplex *model)
	makes sure active columns correct More...

virtual void	reallyScale (const double rowScale, const double columnScale)

virtual void	setDimensions (int numrows, int numcols)
	Set the dimensions of the matrix. More...

virtual void	times (double scalar, const double x, double y, const double rowScale, const double columnScale) const
	And for scaling. More...

virtual void	transposeTimes (double scalar, const double x, double y) const
	Return `y + x * scalar * A` in `y`. More...

virtual void	transposeTimes (double scalar, const double x, double y, const double rowScale, const double columnScale, double *spare=NULL) const
	And for scaling. More...

void	transposeTimesSubset (int number, const int which, const double pi, double y, const double rowScale, const double columnScale, double spare=NULL) const
	Return `y - pi * A` in `y`. More...

void	transposeTimesByColumn (const ClpSimplex model, double scalar, const CoinIndexedVector x, CoinIndexedVector y, CoinIndexedVector z) const
	Return `x * scalar * A in z.` More...

virtual bool	canCombine (const ClpSimplex model, const CoinIndexedVector pi) const
	Returns true if can combine transposeTimes and subsetTransposeTimes and if it would be faster. More...

virtual int	transposeTimes2 (const ClpSimplex model, const CoinIndexedVector pi1, CoinIndexedVector dj1, const CoinIndexedVector pi2, CoinIndexedVector spare, double infeas, double reducedCost, double referenceIn, double devex, unsigned int reference, double *weights, double scaleFactor)
	Updates two arrays for steepest and does devex weights Returns nonzero if updates reduced cost and infeas - new infeas in dj1. More...

virtual void	subsetTimes2 (const ClpSimplex model, CoinIndexedVector dj1, const CoinIndexedVector pi2, CoinIndexedVector dj2, double referenceIn, double devex, unsigned int reference, double weights, double scaleFactor)
	Updates second array for steepest and does devex weights. More...

void	useEffectiveRhs (ClpSimplex *model)
	Sets up an effective RHS. More...

CoinPackedMatrix *	matrix () const
	Returns CoinPackedMatrix (non const) More...

void	setMatrixNull ()
	Just sets matrix_ to NULL so it can be used elsewhere. More...

void	makeSpecialColumnCopy ()
	Say we want special column copy. More...

void	releaseSpecialColumnCopy ()
	Say we don't want special column copy. More...

bool	zeros () const
	Are there zeros? More...

bool	wantsSpecialColumnCopy () const
	Do we want special column copy. More...

int	flags () const
	Flags. More...

void	checkGaps ()
	Sets flags_ correctly. More...

int	numberActiveColumns () const
	number of active columns (normally same as number of columns) More...

void	setNumberActiveColumns (int value)
	Set number of active columns (normally same as number of columns) More...

	ClpPackedMatrix ()
	Default constructor. More...

virtual	~ClpPackedMatrix ()
	Destructor. More...

	ClpPackedMatrix (const ClpPackedMatrix &)
	The copy constructor. More...

	ClpPackedMatrix (const CoinPackedMatrix &)
	The copy constructor from an CoinPackedMatrix. More...

	ClpPackedMatrix (const ClpPackedMatrix &wholeModel, int numberRows, const int whichRows, int numberColumns, const int whichColumns)
	Subset constructor (without gaps). More...

	ClpPackedMatrix (const CoinPackedMatrix &wholeModel, int numberRows, const int whichRows, int numberColumns, const int whichColumns)

	ClpPackedMatrix (CoinPackedMatrix *matrix)
	This takes over ownership (for space reasons) More...

ClpPackedMatrix &	operator= (const ClpPackedMatrix &)

virtual void	copy (const ClpPackedMatrix *from)
	Copy contents - resizing if necessary - otherwise re-use memory. More...

void	specialRowCopy (ClpSimplex model, const ClpMatrixBase rowCopy)
	make special row copy More...

void	specialColumnCopy (ClpSimplex *model)
	make special column copy More...

Public Member Functions inherited from ClpMatrixBase
virtual bool	canGetRowCopy () const
	Returns true if can create row copy. More...

virtual void	createVariable (ClpSimplex *model, int &bestSequence)
	Creates a variable. More...

double	reducedCost (ClpSimplex *model, int sequence) const
	Returns reduced cost of a variable. More...

virtual void	times (double scalar, const double COIN_RESTRICT x, double COIN_RESTRICT y) const =0
	Return `y + A * x * scalar` in `y`. More...

virtual void	times (double scalar, const double COIN_RESTRICT x, double COIN_RESTRICT y, const double COIN_RESTRICT rowScale, const double COIN_RESTRICT columnScale) const
	And for scaling - default aborts for when scaling not supported (unless pointers NULL when as normal) More...

virtual void	transposeTimes (double scalar, const double COIN_RESTRICT x, double COIN_RESTRICT y) const =0
	Return `y + x * scalar * A` in `y`. More...

virtual void	transposeTimes (double scalar, const double COIN_RESTRICT x, double COIN_RESTRICT y, const double COIN_RESTRICT rowScale, const double COIN_RESTRICT columnScale, double *COIN_RESTRICT spare=NULL) const
	And for scaling - default aborts for when scaling not supported (unless pointers NULL when as normal) More...

virtual void	listTransposeTimes (const ClpSimplex model, double x, int y, int number, double z) const
	Return `x *A` in `z` but just for number indices in y. More...

virtual void	backToBasics ()
	Gets rid of any mutable by products. More...

int	type () const
	Returns type. More...

void	setType (int newtype)
	Sets type. More...

void	useEffectiveRhs (ClpSimplex *model)
	Sets up an effective RHS. More...

int	lastRefresh () const
	If rhsOffset used this is iteration last refreshed. More...

int	refreshFrequency () const
	If rhsOffset used this is refresh frequency (0==off) More...

void	setRefreshFrequency (int value)

bool	skipDualCheck () const
	whether to skip dual checks most of time More...

void	setSkipDualCheck (bool yes)

int	minimumObjectsScan () const
	Partial pricing tuning parameter - minimum number of "objects" to scan. More...

void	setMinimumObjectsScan (int value)

int	minimumGoodReducedCosts () const
	Partial pricing tuning parameter - minimum number of negative reduced costs to get. More...

void	setMinimumGoodReducedCosts (int value)

double	startFraction () const
	Current start of search space in matrix (as fraction) More...

void	setStartFraction (double value)

double	endFraction () const
	Current end of search space in matrix (as fraction) More...

void	setEndFraction (double value)

double	savedBestDj () const
	Current best reduced cost. More...

void	setSavedBestDj (double value)

int	originalWanted () const
	Initial number of negative reduced costs wanted. More...

void	setOriginalWanted (int value)

int	currentWanted () const
	Current number of negative reduced costs which we still need. More...

void	setCurrentWanted (int value)

int	savedBestSequence () const
	Current best sequence. More...

void	setSavedBestSequence (int value)

virtual	~ClpMatrixBase ()
	Destructor (has to be public) More...

Protected Attributes
Data members
The data members are protected to allow access for derived classes.
double	objectiveOffset_
	Saved value of objective offset. More...

CoinBigIndex *	startColumn_
	Starts of each column. More...

int *	row_
	rows More...

double *	element_
	elements More...

double *	cost_
	costs More...

int *	fullStart_
	full starts More...

int *	id_
	ids of active columns (just index here) More...

unsigned char *	dynamicStatus_
	for status and which bound More...

double *	lowerColumn_
	Optional lower bounds on columns. More...

double *	upperColumn_
	Optional upper bounds on columns. More...

double *	lowerSet_
	Optional true lower bounds on sets. More...

double *	upperSet_
	Optional true upper bounds on sets. More...

int	numberGubColumns_
	size More...

int	firstAvailable_
	first free More...

int	savedFirstAvailable_
	saved first free More...

int	firstDynamic_
	first dynamic More...

int	lastDynamic_
	number of columns in dynamic model More...

CoinBigIndex	numberElements_
	size of working matrix (max) More...

Protected Attributes inherited from ClpGubMatrix
double	sumDualInfeasibilities_
	Sum of dual infeasibilities. More...

double	sumPrimalInfeasibilities_
	Sum of primal infeasibilities. More...

double	sumOfRelaxedDualInfeasibilities_
	Sum of Dual infeasibilities using tolerance based on error in duals. More...

double	sumOfRelaxedPrimalInfeasibilities_
	Sum of Primal infeasibilities using tolerance based on error in primals. More...

double	infeasibilityWeight_
	Infeasibility weight when last full pass done. More...

int *	start_
	Starts. More...

int *	end_
	End. More...

double *	lower_
	Lower bounds on sets. More...

double *	upper_
	Upper bounds on sets. More...

unsigned char *	status_
	Status of slacks. More...

unsigned char *	saveStatus_
	Saved status of slacks. More...

int *	savedKeyVariable_
	Saved key variables. More...

int *	backward_
	Backward pointer to set number. More...

int *	backToPivotRow_
	Backward pointer to pivot row !!! More...

double *	changeCost_
	Change in costs for keys. More...

int *	keyVariable_
	Key variable of set. More...

int *	next_
	Next basic variable in set - starts at key and end with -(set+1). More...

int *	toIndex_
	Backward pointer to index in CoinIndexedVector. More...

int *	fromIndex_

ClpSimplex *	model_
	Pointer back to model. More...

int	numberDualInfeasibilities_
	Number of dual infeasibilities. More...

int	numberPrimalInfeasibilities_
	Number of primal infeasibilities. More...

int	noCheck_
	If pricing will declare victory (i.e. More...

int	numberSets_
	Number of sets (gub rows) More...

int	saveNumber_
	Number in vector without gub extension. More...

int	possiblePivotKey_
	Pivot row of possible next key. More...

int	gubSlackIn_
	Gub slack in (set number or -1) More...

int	firstGub_
	First gub variables (same as start_[0] at present) More...

int	lastGub_
	last gub variable (same as end_[numberSets_-1] at present) More...

int	gubType_
	type of gub - 0 not contiguous, 1 contiguous add 8 bit to say no ubs on individual variables More...

Protected Attributes inherited from ClpPackedMatrix
CoinPackedMatrix *	matrix_
	Data. More...

int	numberActiveColumns_
	number of active columns (normally same as number of columns) More...

int	flags_
	Flags - 1 - has zero elements 2 - has gaps 4 - has special row copy 8 - has special column copy 16 - wants special column copy. More...

ClpPackedMatrix2 *	rowCopy_
	Special row copy. More...

ClpPackedMatrix3 *	columnCopy_
	Special column copy. More...

Protected Attributes inherited from ClpMatrixBase
double *	rhsOffset_
	Effective RHS offset if it is being used. More...

double	startFraction_
	Current start of search space in matrix (as fraction) More...

double	endFraction_
	Current end of search space in matrix (as fraction) More...

double	savedBestDj_
	Best reduced cost so far. More...

int	originalWanted_
	Initial number of negative reduced costs wanted. More...

int	currentWanted_
	Current number of negative reduced costs which we still need. More...

int	savedBestSequence_
	Saved best sequence in pricing. More...

int	type_
	type (may be useful) More...

int	lastRefresh_
	If rhsOffset used this is iteration last refreshed. More...

int	refreshFrequency_
	If rhsOffset used this is refresh frequency (0==off) More...

int	minimumObjectsScan_
	Partial pricing tuning parameter - minimum number of "objects" to scan. More...

int	minimumGoodReducedCosts_
	Partial pricing tuning parameter - minimum number of negative reduced costs to get. More...

int	trueSequenceIn_
	True sequence in (i.e. from larger problem) More...

int	trueSequenceOut_
	True sequence out (i.e. from larger problem) More...

bool	skipDualCheck_
	whether to skip dual checks most of time More...

gets and sets
enum	DynamicStatus { inSmall = 0x01, atUpperBound = 0x02, atLowerBound = 0x03 }
	enums for status of various sorts More...

bool	flagged (int i) const
	Whether flagged. More...

void	setFlagged (int i)

void	unsetFlagged (int i)

void	setDynamicStatus (int sequence, DynamicStatus status)

DynamicStatus	getDynamicStatus (int sequence) const

double	objectiveOffset () const
	Saved value of objective offset. More...

CoinBigIndex *	startColumn () const
	Starts of each column. More...

int *	row () const
	rows More...

double *	element () const
	elements More...

double *	cost () const
	costs More...

int *	fullStart () const
	full starts More...

int *	id () const
	ids of active columns (just index here) More...

double *	lowerColumn () const
	Optional lower bounds on columns. More...

double *	upperColumn () const
	Optional upper bounds on columns. More...

double *	lowerSet () const
	Optional true lower bounds on sets. More...

double *	upperSet () const
	Optional true upper bounds on sets. More...

int	numberGubColumns () const
	size More...

int	firstAvailable () const
	first free More...

void	setFirstAvailable (int value)
	set first free More...

int	firstDynamic () const
	first dynamic More...

int	lastDynamic () const
	number of columns in dynamic model More...

CoinBigIndex	numberElements () const
	size of working matrix (max) More...

unsigned char *	gubRowStatus () const
	Status region for gub slacks. More...

unsigned char *	dynamicStatus () const
	Status region for gub variables. More...

int	whichSet (int sequence) const
	Returns which set a variable is in. More...

Additional Inherited Members
Protected Member Functions inherited from ClpPackedMatrix
void	checkFlags (int type) const
	Check validity. More...

Protected Member Functions inherited from ClpMatrixBase
	ClpMatrixBase ()
	Default constructor. More...

	ClpMatrixBase (const ClpMatrixBase &)

ClpMatrixBase &	operator= (const ClpMatrixBase &)

Detailed Description

This implements Gub rows plus a ClpPackedMatrix.

This a dynamic version which stores the gub part and dynamically creates matrix. All bounds are assumed to be zero and infinity

This is just a simple example for real column generation

Definition at line 19 of file ClpGubDynamicMatrix.hpp.

Member Enumeration Documentation

enum ClpGubDynamicMatrix::DynamicStatus

enums for status of various sorts

Enumerator
inSmall
atUpperBound
atLowerBound

Definition at line 97 of file ClpGubDynamicMatrix.hpp.

Constructor & Destructor Documentation

ClpGubDynamicMatrix::ClpGubDynamicMatrix ( )

Default constructor.

virtual ClpGubDynamicMatrix::~ClpGubDynamicMatrix ( )

virtual

Destructor.

ClpGubDynamicMatrix::ClpGubDynamicMatrix ( const ClpGubDynamicMatrix & )

The copy constructor.

ClpGubDynamicMatrix::ClpGubDynamicMatrix	(	ClpSimplex *	model,
		int	numberSets,
		int	numberColumns,
		const int *	starts,
		const double *	lower,
		const double *	upper,
		const CoinBigIndex *	startColumn,
		const int *	row,
		const double *	element,
		const double *	cost,
		const double *	lowerColumn = `NULL`,
		const double *	upperColumn = `NULL`,
		const unsigned char *	status = `NULL`
	)

This is the real constructor.

It assumes factorization frequency will not be changed. This resizes model !!!!

Member Function Documentation

virtual void ClpGubDynamicMatrix::partialPricing	(	ClpSimplex *	model,
		double	start,
		double	end,
		int &	bestSequence,
		int &	numberWanted
	)

virtual

Partial pricing.

Reimplemented from ClpGubMatrix.

virtual int ClpGubDynamicMatrix::synchronize	(	ClpSimplex *	model,
		int	mode
	)

virtual

This is local to Gub to allow synchronization: mode=0 when status of basis is good mode=1 when variable is flagged mode=2 when all variables unflagged (returns number flagged) mode=3 just reset costs (primal) mode=4 correct number of dual infeasibilities mode=5 return 4 if time to re-factorize mode=8 - make sure set is clean mode=9 - adjust lower, upper on set by incoming.

Reimplemented from ClpGubMatrix.

virtual void ClpGubDynamicMatrix::useEffectiveRhs	(	ClpSimplex *	model,
		bool	cheapest = `true`
	)

virtual

Sets up an effective RHS and does gub crash if needed.

Reimplemented from ClpGubMatrix.

virtual int ClpGubDynamicMatrix::updatePivot	(	ClpSimplex *	model,
		double	oldInValue,
		double	oldOutValue
	)

virtual

update information for a pivot (and effective rhs)

Reimplemented from ClpGubMatrix.

void ClpGubDynamicMatrix::insertNonBasic	(	int	sequence,
		int	iSet
	)

Add a new variable to a set.

virtual double* ClpGubDynamicMatrix::rhsOffset	(	ClpSimplex *	model,
		bool	forceRefresh = `false`,
		bool	check = `false`
	)

virtual

Returns effective RHS offset if it is being used.

This is used for long problems or big gub or anywhere where going through full columns is expensive. This may re-compute

Reimplemented from ClpGubMatrix.

virtual void ClpGubDynamicMatrix::times	(	double	scalar,
		const double *	x,
		double *	y
	)		const

virtual

Return y + A * scalar *x in y.

Precondition: x must be of size numColumns(); y must be of size numRows()

Reimplemented from ClpPackedMatrix.

virtual int ClpGubDynamicMatrix::checkFeasible	(	ClpSimplex *	model,
		double &	sum
	)		const

virtual

Just for debug Returns sum and number of primal infeasibilities.

Recomputes keys

Reimplemented from ClpMatrixBase.

void ClpGubDynamicMatrix::cleanData ( ClpSimplex * model )

Cleans data after setWarmStart.

ClpGubDynamicMatrix& ClpGubDynamicMatrix::operator= ( const ClpGubDynamicMatrix & )

virtual ClpMatrixBase* ClpGubDynamicMatrix::clone ( ) const

virtual

Clone.

Reimplemented from ClpGubMatrix.

bool ClpGubDynamicMatrix::flagged ( int i ) const

inline

Whether flagged.

Definition at line 103 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::setFlagged ( int i )

inline

Definition at line 107 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::unsetFlagged ( int i )

inline

Definition at line 111 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::setDynamicStatus	(	int	sequence,
		DynamicStatus	status
	)

inline

Definition at line 115 of file ClpGubDynamicMatrix.hpp.

DynamicStatus ClpGubDynamicMatrix::getDynamicStatus ( int sequence ) const

inline

Definition at line 121 of file ClpGubDynamicMatrix.hpp.

double ClpGubDynamicMatrix::objectiveOffset ( ) const

inline

Saved value of objective offset.

Definition at line 126 of file ClpGubDynamicMatrix.hpp.

CoinBigIndex* ClpGubDynamicMatrix::startColumn ( ) const

inline

Starts of each column.

Definition at line 131 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::row ( ) const

inline

rows

Definition at line 136 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::element ( ) const

inline

elements

Definition at line 141 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::cost ( ) const

inline

costs

Definition at line 146 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::fullStart ( ) const

inline

full starts

Definition at line 151 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::id ( ) const

inline

ids of active columns (just index here)

Definition at line 156 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerColumn ( ) const

inline

Optional lower bounds on columns.

Definition at line 161 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperColumn ( ) const

inline

Optional upper bounds on columns.

Definition at line 166 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerSet ( ) const

inline

Optional true lower bounds on sets.

Definition at line 171 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperSet ( ) const

inline

Optional true upper bounds on sets.

Definition at line 176 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::numberGubColumns ( ) const

inline

size

Definition at line 181 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstAvailable ( ) const

inline

first free

Definition at line 186 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::setFirstAvailable ( int value )

inline

set first free

Definition at line 191 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstDynamic ( ) const

inline

first dynamic

Definition at line 196 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::lastDynamic ( ) const

inline

number of columns in dynamic model

Definition at line 201 of file ClpGubDynamicMatrix.hpp.

CoinBigIndex ClpGubDynamicMatrix::numberElements ( ) const

inline

size of working matrix (max)

Definition at line 206 of file ClpGubDynamicMatrix.hpp.

unsigned char* ClpGubDynamicMatrix::gubRowStatus ( ) const

inline

Status region for gub slacks.

Definition at line 211 of file ClpGubDynamicMatrix.hpp.

unsigned char* ClpGubDynamicMatrix::dynamicStatus ( ) const

inline

Status region for gub variables.

Definition at line 216 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::whichSet ( int sequence ) const

Returns which set a variable is in.

Member Data Documentation

double ClpGubDynamicMatrix::objectiveOffset_

protected

Saved value of objective offset.

Definition at line 229 of file ClpGubDynamicMatrix.hpp.

CoinBigIndex* ClpGubDynamicMatrix::startColumn_

protected

Starts of each column.

Definition at line 231 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::row_

protected

rows

Definition at line 233 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::element_

protected

elements

Definition at line 235 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::cost_

protected

costs

Definition at line 237 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::fullStart_

protected

full starts

Definition at line 239 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::id_

protected

ids of active columns (just index here)

Definition at line 241 of file ClpGubDynamicMatrix.hpp.

unsigned char* ClpGubDynamicMatrix::dynamicStatus_

protected

for status and which bound

Definition at line 243 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerColumn_

protected

Optional lower bounds on columns.

Definition at line 245 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperColumn_

protected

Optional upper bounds on columns.

Definition at line 247 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerSet_

protected

Optional true lower bounds on sets.

Definition at line 249 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperSet_

protected

Optional true upper bounds on sets.

Definition at line 251 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::numberGubColumns_

protected

size

Definition at line 253 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstAvailable_

protected

first free

Definition at line 255 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::savedFirstAvailable_

protected

saved first free

Definition at line 257 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstDynamic_

protected

first dynamic

Definition at line 259 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::lastDynamic_

protected

number of columns in dynamic model

Definition at line 261 of file ClpGubDynamicMatrix.hpp.

CoinBigIndex ClpGubDynamicMatrix::numberElements_

protected

size of working matrix (max)

Definition at line 263 of file ClpGubDynamicMatrix.hpp.

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

/tmp/Clp-1.17.6/Clp/src/ClpGubDynamicMatrix.hpp

Public Member Functions

Protected Attributes

gets and sets

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation