This solves LPs using interior point methods. More...

#include <ClpInterior.hpp>

Inheritance diagram for ClpInterior:

Collaboration diagram for ClpInterior:

Public Member Functions
Constructors and destructor and copy
	ClpInterior ()
	Default constructor. More...

	ClpInterior (const ClpInterior &)
	Copy constructor. More...

	ClpInterior (const ClpModel &)
	Copy constructor from model. More...

	ClpInterior (const ClpModel wholeModel, int numberRows, const int whichRows, int numberColumns, const int *whichColumns, bool dropNames=true, bool dropIntegers=true)
	Subproblem constructor. More...

ClpInterior &	operator= (const ClpInterior &rhs)
	Assignment operator. This copies the data. More...

	~ClpInterior ()
	Destructor. More...

void	loadProblem (const ClpMatrixBase &matrix, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)
	Loads a problem (the constraints on the rows are given by lower and upper bounds). More...

void	loadProblem (const CoinPackedMatrix &matrix, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)

void	loadProblem (const int numcols, const int numrows, const CoinBigIndex start, const int index, const double value, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double *rowObjective=NULL)
	Just like the other loadProblem() method except that the matrix is given in a standard column major ordered format (without gaps). More...

void	loadProblem (const int numcols, const int numrows, const CoinBigIndex start, const int index, const double value, const int length, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)
	This one is for after presolve to save memory. More...

int	readMps (const char *filename, bool keepNames=false, bool ignoreErrors=false)
	Read an mps file from the given filename. More...

void	borrowModel (ClpModel &otherModel)
	Borrow model. More...

void	returnModel (ClpModel &otherModel)
	Return model - updates any scalars. More...

Functions most useful to user
int	pdco ()
	Pdco algorithm - see ClpPdco.hpp for method. More...

int	pdco (ClpPdcoBase *stuff, Options &options, Info &info, Outfo &outfo)

int	primalDual ()
	Primal-Dual Predictor-Corrector barrier. More...

most useful gets and sets
bool	primalFeasible () const
	If problem is primal feasible. More...

bool	dualFeasible () const
	If problem is dual feasible. More...

int	algorithm () const
	Current (or last) algorithm. More...

void	setAlgorithm (int value)
	Set algorithm. More...

CoinWorkDouble	sumDualInfeasibilities () const
	Sum of dual infeasibilities. More...

CoinWorkDouble	sumPrimalInfeasibilities () const
	Sum of primal infeasibilities. More...

CoinWorkDouble	dualObjective () const
	dualObjective. More...

CoinWorkDouble	primalObjective () const
	primalObjective. More...

CoinWorkDouble	diagonalNorm () const
	diagonalNorm More...

CoinWorkDouble	linearPerturbation () const
	linearPerturbation More...

void	setLinearPerturbation (CoinWorkDouble value)

CoinWorkDouble	projectionTolerance () const
	projectionTolerance More...

void	setProjectionTolerance (CoinWorkDouble value)

CoinWorkDouble	diagonalPerturbation () const
	diagonalPerturbation More...

void	setDiagonalPerturbation (CoinWorkDouble value)

CoinWorkDouble	gamma () const
	gamma More...

void	setGamma (CoinWorkDouble value)

CoinWorkDouble	delta () const
	delta More...

void	setDelta (CoinWorkDouble value)

CoinWorkDouble	complementarityGap () const
	ComplementarityGap. More...

CoinWorkDouble	largestPrimalError () const
	Largest error on Ax-b. More...

CoinWorkDouble	largestDualError () const
	Largest error on basic duals. More...

int	maximumBarrierIterations () const
	Maximum iterations. More...

void	setMaximumBarrierIterations (int value)

void	setCholesky (ClpCholeskyBase *cholesky)
	Set cholesky (and delete present one) More...

int	numberFixed () const
	Return number fixed to see if worth presolving. More...

void	fixFixed (bool reallyFix=true)
	fix variables interior says should be. More...

CoinWorkDouble *	primalR () const
	Primal erturbation vector. More...

CoinWorkDouble *	dualR () const
	Dual erturbation vector. More...

public methods
CoinWorkDouble	rawObjectiveValue () const
	Raw objective value (so always minimize) More...

int	isColumn (int sequence) const
	Returns 1 if sequence indicates column. More...

int	sequenceWithin (int sequence) const
	Returns sequence number within section. More...

void	checkSolution ()
	Checks solution. More...

CoinWorkDouble	quadraticDjs (CoinWorkDouble djRegion, const CoinWorkDouble solution, CoinWorkDouble scaleFactor)
	Modifies djs to allow for quadratic. More...

void	setFixed (int sequence)
	To say a variable is fixed. More...

void	clearFixed (int sequence)

bool	fixed (int sequence) const

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

void	clearFlagged (int sequence)

bool	flagged (int sequence) const

void	setFixedOrFree (int sequence)
	To say a variable is fixed OR free. More...

void	clearFixedOrFree (int sequence)

bool	fixedOrFree (int sequence) const

void	setLowerBound (int sequence)
	To say a variable has lower bound. More...

void	clearLowerBound (int sequence)

bool	lowerBound (int sequence) const

void	setUpperBound (int sequence)
	To say a variable has upper bound. More...

void	clearUpperBound (int sequence)

bool	upperBound (int sequence) const

void	setFakeLower (int sequence)
	To say a variable has fake lower bound. More...

void	clearFakeLower (int sequence)

bool	fakeLower (int sequence) const

void	setFakeUpper (int sequence)
	To say a variable has fake upper bound. More...

void	clearFakeUpper (int sequence)

bool	fakeUpper (int sequence) const

Public Member Functions inherited from ClpModel
	ClpModel (bool emptyMessages=false)
	Default constructor. More...

	ClpModel (const ClpModel &rhs, int scalingMode=-1)
	Copy constructor. More...

ClpModel &	operator= (const ClpModel &rhs)
	Assignment operator. This copies the data. More...

	ClpModel (const ClpModel wholeModel, int numberRows, const int whichRows, int numberColumns, const int *whichColumns, bool dropNames=true, bool dropIntegers=true)
	Subproblem constructor. More...

	~ClpModel ()
	Destructor. More...

int	numberRows () const
	Number of rows. More...

int	getNumRows () const

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

int	numberColumns () const

double	primalTolerance () const
	Primal tolerance to use. More...

void	setPrimalTolerance (double value)

double	dualTolerance () const
	Dual tolerance to use. More...

void	setDualTolerance (double value)

double	primalObjectiveLimit () const
	Primal objective limit. More...

void	setPrimalObjectiveLimit (double value)

double	dualObjectiveLimit () const
	Dual objective limit. More...

void	setDualObjectiveLimit (double value)

double	objectiveOffset () const
	Objective offset. More...

void	setObjectiveOffset (double value)

double	presolveTolerance () const
	Presolve tolerance to use. More...

const std::string &	problemName () const

int	numberIterations () const
	Number of iterations. More...

int	getIterationCount () const

void	setNumberIterations (int numberIterationsNew)

int	solveType () const
	Solve type - 1 simplex, 2 simplex interface, 3 Interior. More...

void	setSolveType (int type)

int	maximumIterations () const
	Maximum number of iterations. More...

void	setMaximumIterations (int value)

double	maximumSeconds () const
	Maximum time in seconds (from when set called) More...

void	setMaximumSeconds (double value)

void	setMaximumWallSeconds (double value)

bool	hitMaximumIterations () const
	Returns true if hit maximum iterations (or time) More...

int	status () const
	Status of problem: -1 - unknown e.g. More...

int	problemStatus () const

void	setProblemStatus (int problemStatusNew)
	Set problem status. More...

int	secondaryStatus () const
	Secondary status of problem - may get extended 0 - none 1 - primal infeasible because dual limit reached OR (probably primal infeasible but can't prove it - main status was 4) 2 - scaled problem optimal - unscaled problem has primal infeasibilities 3 - scaled problem optimal - unscaled problem has dual infeasibilities 4 - scaled problem optimal - unscaled problem has primal and dual infeasibilities 5 - giving up in primal with flagged variables 6 - failed due to empty problem check 7 - postSolve says not optimal 8 - failed due to bad element check 9 - status was 3 and stopped on time 10 - status was 3 but stopped as primal feasible 11 - status was 1/2 from presolve found infeasible or unbounded 100 up - translation of enum from ClpEventHandler. More...

void	setSecondaryStatus (int newstatus)

bool	isAbandoned () const
	Are there a numerical difficulties? More...

bool	isProvenOptimal () const
	Is optimality proven? More...

bool	isProvenPrimalInfeasible () const
	Is primal infeasiblity proven? More...

bool	isProvenDualInfeasible () const
	Is dual infeasiblity proven? More...

bool	isPrimalObjectiveLimitReached () const
	Is the given primal objective limit reached? More...

bool	isDualObjectiveLimitReached () const
	Is the given dual objective limit reached? More...

bool	isIterationLimitReached () const
	Iteration limit reached? More...

double	optimizationDirection () const
	Direction of optimization (1 - minimize, -1 - maximize, 0 - ignore. More...

double	getObjSense () const

void	setOptimizationDirection (double value)

double *	primalRowSolution () const
	Primal row solution. More...

const double *	getRowActivity () const

double *	primalColumnSolution () const
	Primal column solution. More...

const double *	getColSolution () const

void	setColSolution (const double *input)

double *	dualRowSolution () const
	Dual row solution. More...

const double *	getRowPrice () const

double *	dualColumnSolution () const
	Reduced costs. More...

const double *	getReducedCost () const

double *	rowLower () const
	Row lower. More...

const double *	getRowLower () const

double *	rowUpper () const
	Row upper. More...

const double *	getRowUpper () const

void	setObjectiveCoefficient (int elementIndex, double elementValue)
	Set an objective function coefficient. More...

void	setObjCoeff (int elementIndex, double elementValue)
	Set an objective function coefficient. More...

void	setColumnLower (int elementIndex, double elementValue)
	Set a single column lower bound Use -DBL_MAX for -infinity. More...

void	setColumnUpper (int elementIndex, double elementValue)
	Set a single column upper bound Use DBL_MAX for infinity. More...

void	setColumnBounds (int elementIndex, double lower, double upper)
	Set a single column lower and upper bound. More...

void	setColumnSetBounds (const int indexFirst, const int indexLast, const double *boundList)
	Set the bounds on a number of columns simultaneously The default implementation just invokes setColLower() and setColUpper() over and over again. More...

void	setColLower (int elementIndex, double elementValue)
	Set a single column lower bound Use -DBL_MAX for -infinity. More...

void	setColUpper (int elementIndex, double elementValue)
	Set a single column upper bound Use DBL_MAX for infinity. More...

void	setColBounds (int elementIndex, double lower, double upper)
	Set a single column lower and upper bound. More...

void	setColSetBounds (const int indexFirst, const int indexLast, const double *boundList)
	Set the bounds on a number of columns simultaneously More...

void	setRowLower (int elementIndex, double elementValue)
	Set a single row lower bound Use -DBL_MAX for -infinity. More...

void	setRowUpper (int elementIndex, double elementValue)
	Set a single row upper bound Use DBL_MAX for infinity. More...

void	setRowBounds (int elementIndex, double lower, double upper)
	Set a single row lower and upper bound. More...

void	setRowSetBounds (const int indexFirst, const int indexLast, const double *boundList)
	Set the bounds on a number of rows simultaneously More...

const double *	rowScale () const
	Scaling. More...

const double *	columnScale () const

const double *	inverseRowScale () const

const double *	inverseColumnScale () const

double *	mutableRowScale () const

double *	mutableColumnScale () const

double *	mutableInverseRowScale () const

double *	mutableInverseColumnScale () const

double *	swapRowScale (double *newScale)

void	setRowScale (double *scale)

void	setColumnScale (double *scale)

double	objectiveScale () const
	Scaling of objective. More...

void	setObjectiveScale (double value)

double	rhsScale () const
	Scaling of rhs and bounds. More...

void	setRhsScale (double value)

void	scaling (int mode=1)
	Sets or unsets scaling, 0 -off, 1 equilibrium, 2 geometric, 3 auto, 4 auto-but-as-initialSolve-in-bab. More...

void	unscale ()
	If we constructed a "really" scaled model then this reverses the operation. More...

int	scalingFlag () const
	Gets scalingFlag. More...

double *	objective () const
	Objective. More...

double *	objective (const double *solution, double &offset, bool refresh=true) const

const double *	getObjCoefficients () const

double *	rowObjective () const
	Row Objective. More...

const double *	getRowObjCoefficients () const

double *	columnLower () const
	Column Lower. More...

const double *	getColLower () const

double *	columnUpper () const
	Column Upper. More...

const double *	getColUpper () const

CoinPackedMatrix *	matrix () const
	Matrix (if not ClpPackedmatrix be careful about memory leak. More...

CoinBigIndex	getNumElements () const
	Number of elements in matrix. More...

double	getSmallElementValue () const
	Small element value - elements less than this set to zero, default is 1.0e-20. More...

void	setSmallElementValue (double value)

ClpMatrixBase *	rowCopy () const
	Row Matrix. More...

void	setNewRowCopy (ClpMatrixBase *newCopy)
	Set new row matrix. More...

ClpMatrixBase *	clpMatrix () const
	Clp Matrix. More...

ClpPackedMatrix *	clpScaledMatrix () const
	Scaled ClpPackedMatrix. More...

void	setClpScaledMatrix (ClpPackedMatrix *scaledMatrix)
	Sets pointer to scaled ClpPackedMatrix. More...

ClpPackedMatrix *	swapScaledMatrix (ClpPackedMatrix *scaledMatrix)
	Swaps pointer to scaled ClpPackedMatrix. More...

void	replaceMatrix (ClpMatrixBase *matrix, bool deleteCurrent=false)
	Replace Clp Matrix (current is not deleted unless told to and new is used) So up to user to delete current. More...

void	replaceMatrix (CoinPackedMatrix *newmatrix, bool deleteCurrent=false)
	Replace Clp Matrix (current is not deleted unless told to and new is used) So up to user to delete current. More...

double	objectiveValue () const
	Objective value. More...

void	setObjectiveValue (double value)

double	getObjValue () const

char *	integerInformation () const
	Integer information. More...

double *	infeasibilityRay (bool fullRay=false) const
	Infeasibility/unbounded ray (NULL returned if none/wrong) Up to user to use delete [] on these arrays. More...

double *	unboundedRay () const

double *	ray () const
	For advanced users - no need to delete - sign not changed. More...

bool	rayExists () const
	just test if infeasibility or unbounded Ray exists More...

void	deleteRay ()
	just delete ray if exists More...

const double *	internalRay () const
	Access internal ray storage. Users should call infeasibilityRay() or unboundedRay() instead. More...

bool	statusExists () const
	See if status (i.e. basis) array exists (partly for OsiClp) More...

unsigned char *	statusArray () const
	Return address of status (i.e. basis) array (char[numberRows+numberColumns]) More...

unsigned char *	statusCopy () const
	Return copy of status (i.e. More...

void	copyinStatus (const unsigned char *statusArray)
	Copy in status (basis) vector. More...

void	setUserPointer (void *pointer)
	User pointer for whatever reason. More...

void *	getUserPointer () const

void	setTrustedUserPointer (ClpTrustedData *pointer)
	Trusted user pointer. More...

ClpTrustedData *	getTrustedUserPointer () const

int	whatsChanged () const
	What has changed in model (only for masochistic users) More...

void	setWhatsChanged (int value)

int	numberThreads () const
	Number of threads (not really being used) More...

void	setNumberThreads (int value)

void	passInMessageHandler (CoinMessageHandler *handler)
	Pass in Message handler (not deleted at end) More...

CoinMessageHandler *	pushMessageHandler (CoinMessageHandler *handler, bool &oldDefault)
	Pass in Message handler (not deleted at end) and return current. More...

void	popMessageHandler (CoinMessageHandler *oldHandler, bool oldDefault)
	back to previous message handler More...

void	newLanguage (CoinMessages::Language language)
	Set language. More...

void	setLanguage (CoinMessages::Language language)

void	setDefaultMessageHandler ()
	Overrides message handler with a default one. More...

CoinMessageHandler *	messageHandler () const
	Return handler. More...

CoinMessages	messages () const
	Return messages. More...

CoinMessages *	messagesPointer ()
	Return pointer to messages. More...

CoinMessages	coinMessages () const
	Return Coin messages. More...

CoinMessages *	coinMessagesPointer ()
	Return pointer to Coin messages. More...

void	setLogLevel (int value)
	Amount of print out: 0 - none 1 - just final 2 - just factorizations 3 - as 2 plus a bit more 4 - verbose above that 8,16,32 etc just for selective debug. More...

int	logLevel () const

bool	defaultHandler () const
	Return true if default handler. More...

void	passInEventHandler (const ClpEventHandler *eventHandler)
	Pass in Event handler (cloned and deleted at end) More...

ClpEventHandler *	eventHandler () const
	Event handler. More...

CoinThreadRandom *	randomNumberGenerator ()
	Thread specific random number generator. More...

CoinThreadRandom &	mutableRandomNumberGenerator ()
	Thread specific random number generator. More...

void	setRandomSeed (int value)
	Set seed for thread specific random number generator. More...

int	lengthNames () const
	length of names (0 means no names0 More...

void	setLengthNames (int value)
	length of names (0 means no names0 More...

const std::vector< std::string > *	rowNames () const
	Row names. More...

const std::string &	rowName (int iRow) const

std::string	getRowName (int iRow) const
	Return name or Rnnnnnnn. More...

const std::vector< std::string > *	columnNames () const
	Column names. More...

const std::string &	columnName (int iColumn) const

std::string	getColumnName (int iColumn) const
	Return name or Cnnnnnnn. More...

ClpObjective *	objectiveAsObject () const
	Objective methods. More...

void	setObjective (ClpObjective *objective)

void	setObjectivePointer (ClpObjective *newobjective)

int	emptyProblem (int infeasNumber=NULL, double infeasSum=NULL, bool printMessage=true)
	Solve a problem with no elements - return status and dual and primal infeasibilites. More...

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

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

bool	setIntParam (ClpIntParam key, int value)
	Set an integer parameter. More...

bool	setDblParam (ClpDblParam key, double value)
	Set an double parameter. More...

bool	setStrParam (ClpStrParam key, const std::string &value)
	Set an string parameter. More...

bool	getIntParam (ClpIntParam key, int &value) const

bool	getDblParam (ClpDblParam key, double &value) const

bool	getStrParam (ClpStrParam key, std::string &value) const

void	generateCpp (FILE *fp)
	Create C++ lines to get to current state. More...

unsigned int	specialOptions () const
	For advanced options 1 - Don't keep changing infeasibility weight 2 - Keep nonLinearCost round solves 4 - Force outgoing variables to exact bound (primal) 8 - Safe to use dense initial factorization 16 -Just use basic variables for operation if column generation 32 -Create ray even in BAB 64 -Treat problem as feasible until last minute (i.e. More...

void	setSpecialOptions (unsigned int value)

bool	inCbcBranchAndBound () const

void	loadProblem (const ClpMatrixBase &matrix, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)
	Loads a problem (the constraints on the rows are given by lower and upper bounds). More...

void	loadProblem (const CoinPackedMatrix &matrix, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)

void	loadProblem (const int numcols, const int numrows, const CoinBigIndex start, const int index, const double value, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double *rowObjective=NULL)
	Just like the other loadProblem() method except that the matrix is given in a standard column major ordered format (without gaps). More...

int	loadProblem (CoinModel &modelObject, bool tryPlusMinusOne=false)
	This loads a model from a coinModel object - returns number of errors. More...

void	loadProblem (const int numcols, const int numrows, const CoinBigIndex start, const int index, const double value, const int length, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)
	This one is for after presolve to save memory. More...

void	loadQuadraticObjective (const int numberColumns, const CoinBigIndex start, const int column, const double *element)
	Load up quadratic objective. More...

void	loadQuadraticObjective (const CoinPackedMatrix &matrix)

void	deleteQuadraticObjective ()
	Get rid of quadratic objective. More...

void	setRowObjective (const double *rowObjective)
	This just loads up a row objective. More...

int	readMps (const char *filename, bool keepNames=false, bool ignoreErrors=false)
	Read an mps file from the given filename. More...

int	readGMPL (const char filename, const char dataName, bool keepNames=false)
	Read GMPL files from the given filenames. More...

void	copyInIntegerInformation (const char *information)
	Copy in integer informations. More...

void	deleteIntegerInformation ()
	Drop integer informations. More...

void	setContinuous (int index)
	Set the index-th variable to be a continuous variable. More...

void	setInteger (int index)
	Set the index-th variable to be an integer variable. More...

bool	isInteger (int index) const
	Return true if the index-th variable is an integer variable. More...

void	resize (int newNumberRows, int newNumberColumns)
	Resizes rim part of model. More...

void	deleteRows (int number, const int *which)
	Deletes rows. More...

void	addRow (int numberInRow, const int columns, const double elements, double rowLower=-COIN_DBL_MAX, double rowUpper=COIN_DBL_MAX)
	Add one row. More...

void	addRows (int number, const double rowLower, const double rowUpper, const CoinBigIndex rowStarts, const int columns, const double *elements)
	Add rows. More...

void	addRows (int number, const double rowLower, const double rowUpper, const CoinBigIndex rowStarts, const int rowLengths, const int columns, const double elements)
	Add rows. More...

void	addRows (int number, const double rowLower, const double rowUpper, const CoinPackedVectorBase const rows)

int	addRows (const CoinBuild &buildObject, bool tryPlusMinusOne=false, bool checkDuplicates=true)
	Add rows from a build object. More...

int	addRows (CoinModel &modelObject, bool tryPlusMinusOne=false, bool checkDuplicates=true)
	Add rows from a model object. More...

void	deleteColumns (int number, const int *which)
	Deletes columns. More...

void	deleteRowsAndColumns (int numberRows, const int whichRows, int numberColumns, const int whichColumns)
	Deletes rows AND columns (keeps old sizes) More...

void	addColumn (int numberInColumn, const int rows, const double elements, double columnLower=0.0, double columnUpper=COIN_DBL_MAX, double objective=0.0)
	Add one column. More...

void	addColumns (int number, const double columnLower, const double columnUpper, const double objective, const CoinBigIndex columnStarts, const int rows, const double elements)
	Add columns. More...

void	addColumns (int number, const double columnLower, const double columnUpper, const double objective, const CoinBigIndex columnStarts, const int columnLengths, const int rows, const double *elements)

void	addColumns (int number, const double columnLower, const double columnUpper, const double objective, const CoinPackedVectorBase const *columns)

int	addColumns (const CoinBuild &buildObject, bool tryPlusMinusOne=false, bool checkDuplicates=true)
	Add columns from a build object If tryPlusMinusOne then will try adding as +-1 matrix if no matrix exists. More...

int	addColumns (CoinModel &modelObject, bool tryPlusMinusOne=false, bool checkDuplicates=true)
	Add columns from a model object. More...

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

void	chgRowLower (const double *rowLower)
	Change row lower bounds. More...

void	chgRowUpper (const double *rowUpper)
	Change row upper bounds. More...

void	chgColumnLower (const double *columnLower)
	Change column lower bounds. More...

void	chgColumnUpper (const double *columnUpper)
	Change column upper bounds. More...

void	chgObjCoefficients (const double *objIn)
	Change objective coefficients. More...

void	borrowModel (ClpModel &otherModel)
	Borrow model. More...

void	returnModel (ClpModel &otherModel)
	Return model - nulls all arrays so can be deleted safely also updates any scalars. More...

void	createEmptyMatrix ()
	Create empty ClpPackedMatrix. More...

CoinBigIndex	cleanMatrix (double threshold=1.0e-20)
	Really clean up matrix (if ClpPackedMatrix). More...

void	copy (const ClpMatrixBase from, ClpMatrixBase &to)
	Copy contents - resizing if necessary - otherwise re-use memory. More...

void	dropNames ()
	Drops names - makes lengthnames 0 and names empty. More...

void	copyNames (const std::vector< std::string > &rowNames, const std::vector< std::string > &columnNames)
	Copies in names. More...

void	copyRowNames (const std::vector< std::string > &rowNames, int first, int last)
	Copies in Row names - modifies names first .. last-1. More...

void	copyColumnNames (const std::vector< std::string > &columnNames, int first, int last)
	Copies in Column names - modifies names first .. last-1. More...

void	copyRowNames (const char const rowNames, int first, int last)
	Copies in Row names - modifies names first .. last-1. More...

void	copyColumnNames (const char const columnNames, int first, int last)
	Copies in Column names - modifies names first .. last-1. More...

void	setRowName (int rowIndex, std::string &name)
	Set name of row. More...

void	setColumnName (int colIndex, std::string &name)
	Set name of col. More...

int	findNetwork (char *rotate, double fractionNeeded=0.75)
	Find a network subset. More...

CoinModel *	createCoinModel () const
	This creates a coinModel object. More...

int	writeMps (const char *filename, int formatType=0, int numberAcross=2, double objSense=0.0) const
	Write the problem in MPS format to the specified file. More...

Protected Member Functions
protected methods
void	gutsOfDelete ()
	Does most of deletion. More...

void	gutsOfCopy (const ClpInterior &rhs)
	Does most of copying. More...

bool	createWorkingData ()
	Returns true if data looks okay, false if not. More...

void	deleteWorkingData ()

bool	sanityCheck ()
	Sanity check on input rim data. More...

int	housekeeping ()
	This does housekeeping. More...

Protected Member Functions inherited from ClpModel
void	gutsOfDelete (int type)
	Does most of deletion (0 = all, 1 = most) More...

void	gutsOfCopy (const ClpModel &rhs, int trueCopy=1)
	Does most of copying If trueCopy 0 then just points to arrays If -1 leaves as much as possible. More...

void	getRowBound (int iRow, double &lower, double &upper) const
	gets lower and upper bounds on rows More...

void	gutsOfLoadModel (int numberRows, int numberColumns, const double collb, const double colub, const double obj, const double rowlb, const double rowub, const double rowObjective=NULL)
	puts in format I like - 4 array matrix - may make row copy More...

void	gutsOfScaling ()
	Does much of scaling. More...

double	rawObjectiveValue () const
	Objective value - always minimize. More...

bool	permanentArrays () const
	If we are using maximumRows_ and Columns_. More...

void	startPermanentArrays ()
	Start using maximumRows_ and Columns_. More...

void	stopPermanentArrays ()
	Stop using maximumRows_ and Columns_. More...

const char const	rowNamesAsChar () const
	Create row names as char **. More...

const char const	columnNamesAsChar () const
	Create column names as char **. More...

void	deleteNamesAsChar (const char const names, int number) const
	Delete char * version of names. More...

void	onStopped ()
	On stopped - sets secondary status. More...

Friends
void	ClpInteriorUnitTest (const std::string &mpsDir, const std::string &netlibDir)
	A function that tests the methods in the ClpInterior class. More...

data. Many arrays have a row part and a column part.
There is a single array with both - columns then rows and then normally two arrays pointing to rows and columns. The single array is the owner of memory
CoinWorkDouble	largestPrimalError_
	Largest error on Ax-b. More...

CoinWorkDouble	largestDualError_
	Largest error on basic duals. More...

CoinWorkDouble	sumDualInfeasibilities_
	Sum of dual infeasibilities. More...

CoinWorkDouble	sumPrimalInfeasibilities_
	Sum of primal infeasibilities. More...

CoinWorkDouble	worstComplementarity_
	Worst complementarity. More...

CoinWorkDouble *	lower_
	Working copy of lower bounds (Owner of arrays below) More...

CoinWorkDouble *	rowLowerWork_
	Row lower bounds - working copy. More...

CoinWorkDouble *	columnLowerWork_
	Column lower bounds - working copy. More...

CoinWorkDouble *	upper_
	Working copy of upper bounds (Owner of arrays below) More...

CoinWorkDouble *	rowUpperWork_
	Row upper bounds - working copy. More...

CoinWorkDouble *	columnUpperWork_
	Column upper bounds - working copy. More...

CoinWorkDouble *	cost_
	Working copy of objective. More...

ClpLsqr *	lsqrObject_
	Pointer to Lsqr object. More...

ClpPdcoBase *	pdcoStuff_
	Pointer to stuff. More...

CoinWorkDouble	mu_
	Below here is standard barrier stuff mu. More...

CoinWorkDouble	objectiveNorm_
	objectiveNorm. More...

CoinWorkDouble	rhsNorm_
	rhsNorm. More...

CoinWorkDouble	solutionNorm_
	solutionNorm. More...

CoinWorkDouble	dualObjective_
	dualObjective. More...

CoinWorkDouble	primalObjective_
	primalObjective. More...

CoinWorkDouble	diagonalNorm_
	diagonalNorm. More...

CoinWorkDouble	stepLength_
	stepLength More...

CoinWorkDouble	linearPerturbation_
	linearPerturbation More...

CoinWorkDouble	diagonalPerturbation_
	diagonalPerturbation More...

CoinWorkDouble	gamma_

CoinWorkDouble	delta_

CoinWorkDouble	targetGap_
	targetGap More...

CoinWorkDouble	projectionTolerance_
	projectionTolerance More...

CoinWorkDouble	maximumRHSError_
	maximumRHSError. maximum Ax More...

CoinWorkDouble	maximumBoundInfeasibility_
	maximumBoundInfeasibility. More...

CoinWorkDouble	maximumDualError_
	maximumDualError. More...

CoinWorkDouble	diagonalScaleFactor_
	diagonalScaleFactor. More...

CoinWorkDouble	scaleFactor_
	scaleFactor. For scaling objective More...

CoinWorkDouble	actualPrimalStep_
	actualPrimalStep More...

CoinWorkDouble	actualDualStep_
	actualDualStep More...

CoinWorkDouble	smallestInfeasibility_
	smallestInfeasibility More...

CoinWorkDouble	historyInfeasibility_ [LENGTH_HISTORY]

CoinWorkDouble	complementarityGap_
	complementarityGap. More...

CoinWorkDouble	baseObjectiveNorm_
	baseObjectiveNorm More...

CoinWorkDouble	worstDirectionAccuracy_
	worstDirectionAccuracy More...

CoinWorkDouble	maximumRHSChange_
	maximumRHSChange More...

CoinWorkDouble *	errorRegion_
	errorRegion. i.e. Ax More...

CoinWorkDouble *	rhsFixRegion_
	rhsFixRegion. More...

CoinWorkDouble *	upperSlack_
	upperSlack More...

CoinWorkDouble *	lowerSlack_
	lowerSlack More...

CoinWorkDouble *	diagonal_
	diagonal More...

CoinWorkDouble *	solution_
	solution More...

CoinWorkDouble *	workArray_
	work array More...

CoinWorkDouble *	deltaX_
	delta X More...

CoinWorkDouble *	deltaY_
	delta Y More...

CoinWorkDouble *	deltaZ_
	deltaZ. More...

CoinWorkDouble *	deltaW_
	deltaW. More...

CoinWorkDouble *	deltaSU_
	deltaS. More...

CoinWorkDouble *	deltaSL_

CoinWorkDouble *	primalR_
	Primal regularization array. More...

CoinWorkDouble *	dualR_
	Dual regularization array. More...

CoinWorkDouble *	rhsB_
	rhs B More...

CoinWorkDouble *	rhsU_
	rhsU. More...

CoinWorkDouble *	rhsL_
	rhsL. More...

CoinWorkDouble *	rhsZ_
	rhsZ. More...

CoinWorkDouble *	rhsW_
	rhsW. More...

CoinWorkDouble *	rhsC_
	rhs C More...

CoinWorkDouble *	zVec_
	zVec More...

CoinWorkDouble *	wVec_
	wVec More...

ClpCholeskyBase *	cholesky_
	cholesky. More...

int	numberComplementarityPairs_
	numberComplementarityPairs i.e. ones with lower and/or upper bounds (not fixed) More...

int	numberComplementarityItems_
	numberComplementarityItems_ i.e. number of active bounds More...

int	maximumBarrierIterations_
	Maximum iterations. More...

bool	gonePrimalFeasible_
	gonePrimalFeasible. More...

bool	goneDualFeasible_
	goneDualFeasible. More...

int	algorithm_
	Which algorithm being used. More...

CoinWorkDouble	xsize_

CoinWorkDouble	zsize_

CoinWorkDouble *	rhs_
	Rhs. More...

CoinWorkDouble *	x_

CoinWorkDouble *	y_

CoinWorkDouble *	dj_

Additional Inherited Members
Protected Attributes inherited from ClpModel
double	optimizationDirection_
	Direction of optimization (1 - minimize, -1 - maximize, 0 - ignore. More...

double	dblParam_ [ClpLastDblParam]
	Array of double parameters. More...

double	objectiveValue_
	Objective value. More...

double	smallElement_
	Small element value. More...

double	objectiveScale_
	Scaling of objective. More...

double	rhsScale_
	Scaling of rhs and bounds. More...

int	numberRows_
	Number of rows. More...

int	numberColumns_
	Number of columns. More...

double *	rowActivity_
	Row activities. More...

double *	columnActivity_
	Column activities. More...

double *	dual_
	Duals. More...

double *	reducedCost_
	Reduced costs. More...

double *	rowLower_
	Row lower. More...

double *	rowUpper_
	Row upper. More...

ClpObjective *	objective_
	Objective. More...

double *	rowObjective_
	Row Objective (? sign) - may be NULL. More...

double *	columnLower_
	Column Lower. More...

double *	columnUpper_
	Column Upper. More...

ClpMatrixBase *	matrix_
	Packed matrix. More...

ClpMatrixBase *	rowCopy_
	Row copy if wanted. More...

ClpPackedMatrix *	scaledMatrix_
	Scaled packed matrix. More...

double *	ray_
	Infeasible/unbounded ray. More...

double *	rowScale_
	Row scale factors for matrix. More...

double *	columnScale_
	Column scale factors. More...

double *	inverseRowScale_
	Inverse row scale factors for matrix (end of rowScale_) More...

double *	inverseColumnScale_
	Inverse column scale factors for matrix (end of columnScale_) More...

int	scalingFlag_
	Scale flag, 0 none, 1 equilibrium, 2 geometric, 3, auto, 4 dynamic, 5 geometric on rows. More...

unsigned char *	status_
	Status (i.e. More...

char *	integerType_
	Integer information. More...

void *	userPointer_
	User pointer for whatever reason. More...

ClpTrustedData *	trustedUserPointer_
	Trusted user pointer e.g. for heuristics. More...

int	intParam_ [ClpLastIntParam]
	Array of integer parameters. More...

int	numberIterations_
	Number of iterations. More...

int	solveType_
	Solve type - 1 simplex, 2 simplex interface, 3 Interior. More...

unsigned int	whatsChanged_

int	problemStatus_
	Status of problem. More...

int	secondaryStatus_
	Secondary status of problem. More...

int	lengthNames_
	length of names (0 means no names) More...

int	numberThreads_
	Number of threads (not very operational) More...

unsigned int	specialOptions_
	For advanced options See get and set for meaning. More...

CoinMessageHandler *	handler_
	Message handler. More...

bool	defaultHandler_
	Flag to say if default handler (so delete) More...

CoinThreadRandom	randomNumberGenerator_
	Thread specific random number generator. More...

ClpEventHandler *	eventHandler_
	Event handler. More...

std::vector< std::string >	rowNames_
	Row names. More...

std::vector< std::string >	columnNames_
	Column names. More...

CoinMessages	messages_
	Messages. More...

CoinMessages	coinMessages_
	Coin messages. More...

int	maximumColumns_
	Maximum number of columns in model. More...

int	maximumRows_
	Maximum number of rows in model. More...

int	maximumInternalColumns_
	Maximum number of columns (internal arrays) in model. More...

int	maximumInternalRows_
	Maximum number of rows (internal arrays) in model. More...

CoinPackedMatrix	baseMatrix_
	Base packed matrix. More...

CoinPackedMatrix	baseRowCopy_
	Base row copy. More...

double *	savedRowScale_
	Saved row scale factors for matrix. More...

double *	savedColumnScale_
	Saved column scale factors. More...

std::string	strParam_ [ClpLastStrParam]
	Array of string parameters. More...

Detailed Description

This solves LPs using interior point methods.

It inherits from ClpModel and all its arrays are created at algorithm time.

Definition at line 72 of file ClpInterior.hpp.

Constructor & Destructor Documentation

◆ ClpInterior() [1/4]

ClpInterior::ClpInterior ( )

Default constructor.

◆ ClpInterior() [2/4]

ClpInterior::ClpInterior ( const ClpInterior & )

Copy constructor.

◆ ClpInterior() [3/4]

ClpInterior::ClpInterior ( const ClpModel & )

Copy constructor from model.

◆ ClpInterior() [4/4]

ClpInterior::ClpInterior	(	const ClpModel *	wholeModel,
		int	numberRows,
		const int *	whichRows,
		int	numberColumns,
		const int *	whichColumns,
		bool	dropNames = `true`,
		bool	dropIntegers = `true`
	)

Subproblem constructor.

A subset of whole model is created from the row and column lists given. The new order is given by list order and duplicates are allowed. Name and integer information can be dropped

◆ ~ClpInterior()

ClpInterior::~ClpInterior ( )

Destructor.

Member Function Documentation

◆ operator=()

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

Assignment operator. This copies the data.

◆ loadProblem() [1/4]

void ClpInterior::loadProblem	(	const ClpMatrixBase &	matrix,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const double *	rowlb,
		const double *	rowub,
		const double *	rowObjective = `NULL`
	)

Loads a problem (the constraints on the rows are given by lower and upper bounds).

If a pointer is 0 then the following values are the default:

colub: all columns have upper bound infinity
collb: all columns have lower bound 0
rowub: all rows have upper bound infinity
rowlb: all rows have lower bound -infinity
obj: all variables have 0 objective coefficient

◆ loadProblem() [2/4]

void ClpInterior::loadProblem	(	const CoinPackedMatrix &	matrix,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const double *	rowlb,
		const double *	rowub,
		const double *	rowObjective = `NULL`
	)

◆ loadProblem() [3/4]

void ClpInterior::loadProblem	(	const int	numcols,
		const int	numrows,
		const CoinBigIndex *	start,
		const int *	index,
		const double *	value,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const double *	rowlb,
		const double *	rowub,
		const double *	rowObjective = `NULL`
	)

Just like the other loadProblem() method except that the matrix is given in a standard column major ordered format (without gaps).

◆ loadProblem() [4/4]

void ClpInterior::loadProblem	(	const int	numcols,
		const int	numrows,
		const CoinBigIndex *	start,
		const int *	index,
		const double *	value,
		const int *	length,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const double *	rowlb,
		const double *	rowub,
		const double *	rowObjective = `NULL`
	)

This one is for after presolve to save memory.

◆ readMps()

int ClpInterior::readMps	(	const char *	filename,
		bool	keepNames = `false`,
		bool	ignoreErrors = `false`
	)

Read an mps file from the given filename.

◆ borrowModel()

void ClpInterior::borrowModel ( ClpModel & otherModel )

Borrow model.

This is so we dont have to copy large amounts of data around. It assumes a derived class wants to overwrite an empty model with a real one - while it does an algorithm. This is same as ClpModel one.

◆ returnModel()

void ClpInterior::returnModel ( ClpModel & otherModel )

Return model - updates any scalars.

◆ pdco() [1/2]

int ClpInterior::pdco ( )

Pdco algorithm - see ClpPdco.hpp for method.

◆ pdco() [2/2]

int ClpInterior::pdco	(	ClpPdcoBase *	stuff,
		Options &	options,
		Info &	info,
		Outfo &	outfo
	)

◆ primalDual()

int ClpInterior::primalDual ( )

Primal-Dual Predictor-Corrector barrier.

◆ primalFeasible()

bool ClpInterior::primalFeasible ( ) const

inline

If problem is primal feasible.

Definition at line 164 of file ClpInterior.hpp.

◆ dualFeasible()

bool ClpInterior::dualFeasible ( ) const

inline

If problem is dual feasible.

Definition at line 169 of file ClpInterior.hpp.

◆ algorithm()

int ClpInterior::algorithm ( ) const

inline

Current (or last) algorithm.

Definition at line 174 of file ClpInterior.hpp.

◆ setAlgorithm()

void ClpInterior::setAlgorithm ( int value )

inline

Set algorithm.

Definition at line 179 of file ClpInterior.hpp.

◆ sumDualInfeasibilities()

CoinWorkDouble ClpInterior::sumDualInfeasibilities ( ) const

inline

Sum of dual infeasibilities.

Definition at line 184 of file ClpInterior.hpp.

◆ sumPrimalInfeasibilities()

CoinWorkDouble ClpInterior::sumPrimalInfeasibilities ( ) const

inline

Sum of primal infeasibilities.

Definition at line 189 of file ClpInterior.hpp.

◆ dualObjective()

CoinWorkDouble ClpInterior::dualObjective ( ) const

inline

dualObjective.

Definition at line 194 of file ClpInterior.hpp.

◆ primalObjective()

CoinWorkDouble ClpInterior::primalObjective ( ) const

inline

primalObjective.

Definition at line 199 of file ClpInterior.hpp.

◆ diagonalNorm()

CoinWorkDouble ClpInterior::diagonalNorm ( ) const

inline

diagonalNorm

Definition at line 204 of file ClpInterior.hpp.

◆ linearPerturbation()

CoinWorkDouble ClpInterior::linearPerturbation ( ) const

inline

linearPerturbation

Definition at line 209 of file ClpInterior.hpp.

◆ setLinearPerturbation()

void ClpInterior::setLinearPerturbation ( CoinWorkDouble value )

inline

Definition at line 213 of file ClpInterior.hpp.

◆ projectionTolerance()

CoinWorkDouble ClpInterior::projectionTolerance ( ) const

inline

projectionTolerance

Definition at line 218 of file ClpInterior.hpp.

◆ setProjectionTolerance()

void ClpInterior::setProjectionTolerance ( CoinWorkDouble value )

inline

Definition at line 222 of file ClpInterior.hpp.

◆ diagonalPerturbation()

CoinWorkDouble ClpInterior::diagonalPerturbation ( ) const

inline

diagonalPerturbation

Definition at line 227 of file ClpInterior.hpp.

◆ setDiagonalPerturbation()

void ClpInterior::setDiagonalPerturbation ( CoinWorkDouble value )

inline

Definition at line 231 of file ClpInterior.hpp.

◆ gamma()

CoinWorkDouble ClpInterior::gamma ( ) const

inline

gamma

Definition at line 236 of file ClpInterior.hpp.

◆ setGamma()

void ClpInterior::setGamma ( CoinWorkDouble value )

inline

Definition at line 240 of file ClpInterior.hpp.

◆ delta()

CoinWorkDouble ClpInterior::delta ( ) const

inline

delta

Definition at line 245 of file ClpInterior.hpp.

◆ setDelta()

void ClpInterior::setDelta ( CoinWorkDouble value )

inline

Definition at line 249 of file ClpInterior.hpp.

◆ complementarityGap()

CoinWorkDouble ClpInterior::complementarityGap ( ) const

inline

ComplementarityGap.

Definition at line 254 of file ClpInterior.hpp.

◆ largestPrimalError()

CoinWorkDouble ClpInterior::largestPrimalError ( ) const

inline

Largest error on Ax-b.

Definition at line 263 of file ClpInterior.hpp.

◆ largestDualError()

CoinWorkDouble ClpInterior::largestDualError ( ) const

inline

Largest error on basic duals.

Definition at line 268 of file ClpInterior.hpp.

◆ maximumBarrierIterations()

int ClpInterior::maximumBarrierIterations ( ) const

inline

Maximum iterations.

Definition at line 273 of file ClpInterior.hpp.

◆ setMaximumBarrierIterations()

void ClpInterior::setMaximumBarrierIterations ( int value )

inline

Definition at line 277 of file ClpInterior.hpp.

◆ setCholesky()

void ClpInterior::setCholesky ( ClpCholeskyBase * cholesky )

Set cholesky (and delete present one)

◆ numberFixed()

int ClpInterior::numberFixed ( ) const

Return number fixed to see if worth presolving.

◆ fixFixed()

void ClpInterior::fixFixed ( bool reallyFix = true )

fix variables interior says should be.

If reallyFix false then just set values to exact bounds

◆ primalR()

CoinWorkDouble* ClpInterior::primalR ( ) const

inline

Primal erturbation vector.

Definition at line 289 of file ClpInterior.hpp.

◆ dualR()

CoinWorkDouble* ClpInterior::dualR ( ) const

inline

Dual erturbation vector.

Definition at line 294 of file ClpInterior.hpp.

◆ gutsOfDelete()

void ClpInterior::gutsOfDelete ( )

protected

Does most of deletion.

◆ gutsOfCopy()

void ClpInterior::gutsOfCopy ( const ClpInterior & rhs )

protected

Does most of copying.

◆ createWorkingData()

bool ClpInterior::createWorkingData ( )

protected

Returns true if data looks okay, false if not.

◆ deleteWorkingData()

void ClpInterior::deleteWorkingData ( )

protected

◆ sanityCheck()

bool ClpInterior::sanityCheck ( )

protected

Sanity check on input rim data.

◆ housekeeping()

int ClpInterior::housekeeping ( )

protected

This does housekeeping.

◆ rawObjectiveValue()

CoinWorkDouble ClpInterior::rawObjectiveValue ( ) const

inline

Raw objective value (so always minimize)

Definition at line 319 of file ClpInterior.hpp.

◆ isColumn()

int ClpInterior::isColumn ( int sequence ) const

inline

Returns 1 if sequence indicates column.

Definition at line 324 of file ClpInterior.hpp.

◆ sequenceWithin()

int ClpInterior::sequenceWithin ( int sequence ) const

inline

Returns sequence number within section.

Definition at line 329 of file ClpInterior.hpp.

◆ checkSolution()

void ClpInterior::checkSolution ( )

Checks solution.

◆ quadraticDjs()

CoinWorkDouble ClpInterior::quadraticDjs	(	CoinWorkDouble *	djRegion,
		const CoinWorkDouble *	solution,
		CoinWorkDouble	scaleFactor
	)

Modifies djs to allow for quadratic.

returns quadratic offset

◆ setFixed()

void ClpInterior::setFixed ( int sequence )

inline

To say a variable is fixed.

Definition at line 341 of file ClpInterior.hpp.

◆ clearFixed()

void ClpInterior::clearFixed ( int sequence )

inline

Definition at line 345 of file ClpInterior.hpp.

◆ fixed()

bool ClpInterior::fixed ( int sequence ) const

inline

Definition at line 349 of file ClpInterior.hpp.

◆ setFlagged()

void ClpInterior::setFlagged ( int sequence )

inline

To flag a variable.

Definition at line 355 of file ClpInterior.hpp.

◆ clearFlagged()

void ClpInterior::clearFlagged ( int sequence )

inline

Definition at line 359 of file ClpInterior.hpp.

◆ flagged()

bool ClpInterior::flagged ( int sequence ) const

inline

Definition at line 363 of file ClpInterior.hpp.

◆ setFixedOrFree()

void ClpInterior::setFixedOrFree ( int sequence )

inline

To say a variable is fixed OR free.

Definition at line 369 of file ClpInterior.hpp.

◆ clearFixedOrFree()

void ClpInterior::clearFixedOrFree ( int sequence )

inline

Definition at line 373 of file ClpInterior.hpp.

◆ fixedOrFree()

bool ClpInterior::fixedOrFree ( int sequence ) const

inline

Definition at line 377 of file ClpInterior.hpp.

◆ setLowerBound()

void ClpInterior::setLowerBound ( int sequence )

inline

To say a variable has lower bound.

Definition at line 383 of file ClpInterior.hpp.

◆ clearLowerBound()

void ClpInterior::clearLowerBound ( int sequence )

inline

Definition at line 387 of file ClpInterior.hpp.

◆ lowerBound()

bool ClpInterior::lowerBound ( int sequence ) const

inline

Definition at line 391 of file ClpInterior.hpp.

◆ setUpperBound()

void ClpInterior::setUpperBound ( int sequence )

inline

To say a variable has upper bound.

Definition at line 397 of file ClpInterior.hpp.

◆ clearUpperBound()

void ClpInterior::clearUpperBound ( int sequence )

inline

Definition at line 401 of file ClpInterior.hpp.

◆ upperBound()

bool ClpInterior::upperBound ( int sequence ) const

inline

Definition at line 405 of file ClpInterior.hpp.

◆ setFakeLower()

void ClpInterior::setFakeLower ( int sequence )

inline

To say a variable has fake lower bound.

Definition at line 411 of file ClpInterior.hpp.

◆ clearFakeLower()

void ClpInterior::clearFakeLower ( int sequence )

inline

Definition at line 415 of file ClpInterior.hpp.

◆ fakeLower()

bool ClpInterior::fakeLower ( int sequence ) const

inline

Definition at line 419 of file ClpInterior.hpp.

◆ setFakeUpper()

void ClpInterior::setFakeUpper ( int sequence )

inline

To say a variable has fake upper bound.

Definition at line 425 of file ClpInterior.hpp.

◆ clearFakeUpper()

void ClpInterior::clearFakeUpper ( int sequence )

inline

Definition at line 429 of file ClpInterior.hpp.

◆ fakeUpper()

bool ClpInterior::fakeUpper ( int sequence ) const

inline

Definition at line 433 of file ClpInterior.hpp.

Friends And Related Function Documentation

◆ ClpInteriorUnitTest

void ClpInteriorUnitTest	(	const std::string &	mpsDir,
		const std::string &	netlibDir
	)

friend

A function that tests the methods in the ClpInterior class.

The only reason for it not to be a member method is that this way it doesn't have to be compiled into the library. And that's a gain, because the library should be compiled with optimization on, but this method should be compiled with debugging.

It also does some testing of ClpFactorization class

Member Data Documentation

◆ largestPrimalError_

CoinWorkDouble ClpInterior::largestPrimalError_

protected

Largest error on Ax-b.

Definition at line 448 of file ClpInterior.hpp.

◆ largestDualError_

CoinWorkDouble ClpInterior::largestDualError_

protected

Largest error on basic duals.

Definition at line 450 of file ClpInterior.hpp.

◆ sumDualInfeasibilities_

CoinWorkDouble ClpInterior::sumDualInfeasibilities_

protected

Sum of dual infeasibilities.

Definition at line 452 of file ClpInterior.hpp.

◆ sumPrimalInfeasibilities_

CoinWorkDouble ClpInterior::sumPrimalInfeasibilities_

protected

Sum of primal infeasibilities.

Definition at line 454 of file ClpInterior.hpp.

◆ worstComplementarity_

CoinWorkDouble ClpInterior::worstComplementarity_

protected

Worst complementarity.

Definition at line 456 of file ClpInterior.hpp.

◆ xsize_

CoinWorkDouble ClpInterior::xsize_

Definition at line 459 of file ClpInterior.hpp.

◆ zsize_

CoinWorkDouble ClpInterior::zsize_

Definition at line 460 of file ClpInterior.hpp.

◆ lower_

CoinWorkDouble* ClpInterior::lower_

protected

Working copy of lower bounds (Owner of arrays below)

Definition at line 464 of file ClpInterior.hpp.

◆ rowLowerWork_

CoinWorkDouble* ClpInterior::rowLowerWork_

protected

Row lower bounds - working copy.

Definition at line 466 of file ClpInterior.hpp.

◆ columnLowerWork_

CoinWorkDouble* ClpInterior::columnLowerWork_

protected

Column lower bounds - working copy.

Definition at line 468 of file ClpInterior.hpp.

◆ upper_

CoinWorkDouble* ClpInterior::upper_

protected

Working copy of upper bounds (Owner of arrays below)

Definition at line 470 of file ClpInterior.hpp.

◆ rowUpperWork_

CoinWorkDouble* ClpInterior::rowUpperWork_

protected

Row upper bounds - working copy.

Definition at line 472 of file ClpInterior.hpp.

◆ columnUpperWork_

CoinWorkDouble* ClpInterior::columnUpperWork_

protected

Column upper bounds - working copy.

Definition at line 474 of file ClpInterior.hpp.

◆ cost_

CoinWorkDouble* ClpInterior::cost_

protected

Working copy of objective.

Definition at line 476 of file ClpInterior.hpp.

◆ rhs_

CoinWorkDouble* ClpInterior::rhs_

Rhs.

Definition at line 480 of file ClpInterior.hpp.

◆ x_

CoinWorkDouble* ClpInterior::x_

Definition at line 481 of file ClpInterior.hpp.

◆ y_

CoinWorkDouble* ClpInterior::y_

Definition at line 482 of file ClpInterior.hpp.

◆ dj_

CoinWorkDouble* ClpInterior::dj_

Definition at line 483 of file ClpInterior.hpp.

◆ lsqrObject_

ClpLsqr* ClpInterior::lsqrObject_

protected

Pointer to Lsqr object.

Definition at line 487 of file ClpInterior.hpp.

◆ pdcoStuff_

ClpPdcoBase* ClpInterior::pdcoStuff_

protected

Pointer to stuff.

Definition at line 489 of file ClpInterior.hpp.

◆ mu_

CoinWorkDouble ClpInterior::mu_

protected

Below here is standard barrier stuff mu.

Definition at line 492 of file ClpInterior.hpp.

◆ objectiveNorm_

CoinWorkDouble ClpInterior::objectiveNorm_

protected

objectiveNorm.

Definition at line 494 of file ClpInterior.hpp.

◆ rhsNorm_

CoinWorkDouble ClpInterior::rhsNorm_

protected

rhsNorm.

Definition at line 496 of file ClpInterior.hpp.

◆ solutionNorm_

CoinWorkDouble ClpInterior::solutionNorm_

protected

solutionNorm.

Definition at line 498 of file ClpInterior.hpp.

◆ dualObjective_

CoinWorkDouble ClpInterior::dualObjective_

protected

dualObjective.

Definition at line 500 of file ClpInterior.hpp.

◆ primalObjective_

CoinWorkDouble ClpInterior::primalObjective_

protected

primalObjective.

Definition at line 502 of file ClpInterior.hpp.

◆ diagonalNorm_

CoinWorkDouble ClpInterior::diagonalNorm_

protected

diagonalNorm.

Definition at line 504 of file ClpInterior.hpp.

◆ stepLength_

CoinWorkDouble ClpInterior::stepLength_

protected

stepLength

Definition at line 506 of file ClpInterior.hpp.

◆ linearPerturbation_

CoinWorkDouble ClpInterior::linearPerturbation_

protected

linearPerturbation

Definition at line 508 of file ClpInterior.hpp.

◆ diagonalPerturbation_

CoinWorkDouble ClpInterior::diagonalPerturbation_

protected

diagonalPerturbation

Definition at line 510 of file ClpInterior.hpp.

◆ gamma_

CoinWorkDouble ClpInterior::gamma_

protected

Definition at line 512 of file ClpInterior.hpp.

◆ delta_

CoinWorkDouble ClpInterior::delta_

protected

Definition at line 514 of file ClpInterior.hpp.

◆ targetGap_

CoinWorkDouble ClpInterior::targetGap_

protected

targetGap

Definition at line 516 of file ClpInterior.hpp.

◆ projectionTolerance_

CoinWorkDouble ClpInterior::projectionTolerance_

protected

projectionTolerance

Definition at line 518 of file ClpInterior.hpp.

◆ maximumRHSError_

CoinWorkDouble ClpInterior::maximumRHSError_

protected

maximumRHSError. maximum Ax

Definition at line 520 of file ClpInterior.hpp.

◆ maximumBoundInfeasibility_

CoinWorkDouble ClpInterior::maximumBoundInfeasibility_

protected

maximumBoundInfeasibility.

Definition at line 522 of file ClpInterior.hpp.

◆ maximumDualError_

CoinWorkDouble ClpInterior::maximumDualError_

protected

maximumDualError.

Definition at line 524 of file ClpInterior.hpp.

◆ diagonalScaleFactor_

CoinWorkDouble ClpInterior::diagonalScaleFactor_

protected

diagonalScaleFactor.

Definition at line 526 of file ClpInterior.hpp.

◆ scaleFactor_

CoinWorkDouble ClpInterior::scaleFactor_

protected

scaleFactor. For scaling objective

Definition at line 528 of file ClpInterior.hpp.

◆ actualPrimalStep_

CoinWorkDouble ClpInterior::actualPrimalStep_

protected

actualPrimalStep

Definition at line 530 of file ClpInterior.hpp.

◆ actualDualStep_

CoinWorkDouble ClpInterior::actualDualStep_

protected

actualDualStep

Definition at line 532 of file ClpInterior.hpp.

◆ smallestInfeasibility_

CoinWorkDouble ClpInterior::smallestInfeasibility_

protected

smallestInfeasibility

Definition at line 534 of file ClpInterior.hpp.

◆ historyInfeasibility_

CoinWorkDouble ClpInterior::historyInfeasibility_[LENGTH_HISTORY]

protected

Definition at line 537 of file ClpInterior.hpp.

◆ complementarityGap_

CoinWorkDouble ClpInterior::complementarityGap_

protected

complementarityGap.

Definition at line 539 of file ClpInterior.hpp.

◆ baseObjectiveNorm_

CoinWorkDouble ClpInterior::baseObjectiveNorm_

protected

baseObjectiveNorm

Definition at line 541 of file ClpInterior.hpp.

◆ worstDirectionAccuracy_

CoinWorkDouble ClpInterior::worstDirectionAccuracy_

protected

worstDirectionAccuracy

Definition at line 543 of file ClpInterior.hpp.

◆ maximumRHSChange_

CoinWorkDouble ClpInterior::maximumRHSChange_

protected

maximumRHSChange

Definition at line 545 of file ClpInterior.hpp.

◆ errorRegion_

CoinWorkDouble* ClpInterior::errorRegion_

protected

errorRegion. i.e. Ax

Definition at line 547 of file ClpInterior.hpp.

◆ rhsFixRegion_

CoinWorkDouble* ClpInterior::rhsFixRegion_

protected

rhsFixRegion.

Definition at line 549 of file ClpInterior.hpp.

◆ upperSlack_

CoinWorkDouble* ClpInterior::upperSlack_

protected

upperSlack

Definition at line 551 of file ClpInterior.hpp.

◆ lowerSlack_

CoinWorkDouble* ClpInterior::lowerSlack_

protected

lowerSlack

Definition at line 553 of file ClpInterior.hpp.

◆ diagonal_

CoinWorkDouble* ClpInterior::diagonal_

protected

diagonal

Definition at line 555 of file ClpInterior.hpp.

◆ solution_

CoinWorkDouble* ClpInterior::solution_

protected

solution

Definition at line 557 of file ClpInterior.hpp.

◆ workArray_

CoinWorkDouble* ClpInterior::workArray_

protected

work array

Definition at line 559 of file ClpInterior.hpp.

◆ deltaX_

CoinWorkDouble* ClpInterior::deltaX_

protected

delta X

Definition at line 561 of file ClpInterior.hpp.

◆ deltaY_

CoinWorkDouble* ClpInterior::deltaY_

protected

delta Y

Definition at line 563 of file ClpInterior.hpp.

◆ deltaZ_

CoinWorkDouble* ClpInterior::deltaZ_

protected

deltaZ.

Definition at line 565 of file ClpInterior.hpp.

◆ deltaW_

CoinWorkDouble* ClpInterior::deltaW_

protected

deltaW.

Definition at line 567 of file ClpInterior.hpp.

◆ deltaSU_

CoinWorkDouble* ClpInterior::deltaSU_

protected

deltaS.

Definition at line 569 of file ClpInterior.hpp.

◆ deltaSL_

CoinWorkDouble* ClpInterior::deltaSL_

protected

Definition at line 570 of file ClpInterior.hpp.

◆ primalR_

CoinWorkDouble* ClpInterior::primalR_

protected

Primal regularization array.

Definition at line 572 of file ClpInterior.hpp.

◆ dualR_

CoinWorkDouble* ClpInterior::dualR_

protected

Dual regularization array.

Definition at line 574 of file ClpInterior.hpp.

◆ rhsB_

CoinWorkDouble* ClpInterior::rhsB_

protected

rhs B

Definition at line 576 of file ClpInterior.hpp.

◆ rhsU_

CoinWorkDouble* ClpInterior::rhsU_

protected

rhsU.

Definition at line 578 of file ClpInterior.hpp.

◆ rhsL_

CoinWorkDouble* ClpInterior::rhsL_

protected

rhsL.

Definition at line 580 of file ClpInterior.hpp.

◆ rhsZ_

CoinWorkDouble* ClpInterior::rhsZ_

protected

rhsZ.

Definition at line 582 of file ClpInterior.hpp.

◆ rhsW_

CoinWorkDouble* ClpInterior::rhsW_

protected

rhsW.

Definition at line 584 of file ClpInterior.hpp.

◆ rhsC_

CoinWorkDouble* ClpInterior::rhsC_

protected

rhs C

Definition at line 586 of file ClpInterior.hpp.

◆ zVec_

CoinWorkDouble* ClpInterior::zVec_

protected

zVec

Definition at line 588 of file ClpInterior.hpp.

◆ wVec_

CoinWorkDouble* ClpInterior::wVec_

protected

wVec

Definition at line 590 of file ClpInterior.hpp.

◆ cholesky_

ClpCholeskyBase* ClpInterior::cholesky_

protected

cholesky.

Definition at line 592 of file ClpInterior.hpp.

◆ numberComplementarityPairs_

int ClpInterior::numberComplementarityPairs_

protected

numberComplementarityPairs i.e. ones with lower and/or upper bounds (not fixed)

Definition at line 594 of file ClpInterior.hpp.

◆ numberComplementarityItems_

int ClpInterior::numberComplementarityItems_

protected

numberComplementarityItems_ i.e. number of active bounds

Definition at line 596 of file ClpInterior.hpp.

◆ maximumBarrierIterations_

int ClpInterior::maximumBarrierIterations_

protected

Maximum iterations.

Definition at line 598 of file ClpInterior.hpp.

◆ gonePrimalFeasible_

bool ClpInterior::gonePrimalFeasible_

protected

gonePrimalFeasible.

Definition at line 600 of file ClpInterior.hpp.

◆ goneDualFeasible_

bool ClpInterior::goneDualFeasible_

protected

goneDualFeasible.

Definition at line 602 of file ClpInterior.hpp.

◆ algorithm_

int ClpInterior::algorithm_

protected

Which algorithm being used.

Definition at line 604 of file ClpInterior.hpp.

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

/home/ted/tmp/tmp/Clp/Clp/src/ClpInterior.hpp

Public Member Functions

Protected Member Functions

Friends

data. Many arrays have a row part and a column part.

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ClpInterior() [1/4]

◆ ClpInterior() [2/4]

◆ ClpInterior() [3/4]

◆ ClpInterior() [4/4]

◆ ~ClpInterior()

Member Function Documentation

◆ operator=()

◆ loadProblem() [1/4]

◆ loadProblem() [2/4]

◆ loadProblem() [3/4]

◆ loadProblem() [4/4]

◆ readMps()

◆ borrowModel()

◆ returnModel()

◆ pdco() [1/2]

◆ pdco() [2/2]

◆ primalDual()

◆ primalFeasible()

◆ dualFeasible()

◆ algorithm()

◆ setAlgorithm()

◆ sumDualInfeasibilities()

◆ sumPrimalInfeasibilities()

◆ dualObjective()

◆ primalObjective()

◆ diagonalNorm()

◆ linearPerturbation()

◆ setLinearPerturbation()

◆ projectionTolerance()

◆ setProjectionTolerance()

◆ diagonalPerturbation()

◆ setDiagonalPerturbation()

◆ gamma()

◆ setGamma()

◆ delta()

◆ setDelta()

◆ complementarityGap()

◆ largestPrimalError()

◆ largestDualError()

◆ maximumBarrierIterations()

◆ setMaximumBarrierIterations()

◆ setCholesky()

◆ numberFixed()

◆ fixFixed()

◆ primalR()

◆ dualR()

◆ gutsOfDelete()

◆ gutsOfCopy()

◆ createWorkingData()

◆ deleteWorkingData()

◆ sanityCheck()

◆ housekeeping()

◆ rawObjectiveValue()

◆ isColumn()

◆ sequenceWithin()

◆ checkSolution()

◆ quadraticDjs()

◆ setFixed()

◆ clearFixed()

◆ fixed()

◆ setFlagged()

◆ clearFlagged()

◆ flagged()

◆ setFixedOrFree()

◆ clearFixedOrFree()

◆ fixedOrFree()

◆ setLowerBound()

◆ clearLowerBound()

◆ lowerBound()

◆ setUpperBound()

◆ clearUpperBound()

◆ upperBound()

◆ setFakeLower()