SoPlex Solver Interface Instantiation of OsiSpxSolverInterface for SoPlex. More...

#include <OsiSpxSolverInterface.hpp>

Inheritance diagram for OsiSpxSolverInterface:

Collaboration diagram for OsiSpxSolverInterface:

Public Types
enum	keepCachedFlag { KEEPCACHED_NONE = 0, KEEPCACHED_COLUMN = 1, KEEPCACHED_ROW = 2, KEEPCACHED_MATRIX = 4, KEEPCACHED_RESULTS = 8, KEEPCACHED_PROBLEM = KEEPCACHED_COLUMN \| KEEPCACHED_ROW \| KEEPCACHED_MATRIX, KEEPCACHED_ALL = KEEPCACHED_PROBLEM \| KEEPCACHED_RESULTS, FREECACHED_COLUMN = KEEPCACHED_PROBLEM & ~KEEPCACHED_COLUMN, FREECACHED_ROW = KEEPCACHED_PROBLEM & ~KEEPCACHED_ROW, FREECACHED_MATRIX = KEEPCACHED_PROBLEM & ~KEEPCACHED_MATRIX, FREECACHED_RESULTS = KEEPCACHED_ALL & ~KEEPCACHED_RESULTS }

Public Types inherited from OsiSolverInterface
typedef std::vector< std::string >	OsiNameVec
	Data type for name vectors. More...

Public Member Functions
virtual void	setObjSense (double s)
	Set objective function sense (1 for min (default), -1 for max,) More...

virtual void	setColSolution (const double *colsol)
	Set the primal solution column values. More...

virtual void	setRowPrice (const double *rowprice)
	Set dual solution vector. More...

soplex::SoPlex *	getLpPtr (int keepCached=KEEPCACHED_NONE)

soplex::SPxOut *	getSPxOut ()

Solve methods
virtual void	initialSolve ()
	Solve initial LP relaxation. More...

virtual void	resolve ()
	Resolve an LP relaxation after problem modification. More...

virtual void	branchAndBound ()
	Invoke solver's built-in enumeration algorithm. More...

Parameter set/get methods
The set methods return true if the parameter was set to the given value, false otherwise. There can be various reasons for failure: the given parameter is not applicable for the solver (e.g., refactorization frequency for the volume algorithm), the parameter is not yet implemented for the solver or simply the value of the parameter is out of the range the solver accepts. If a parameter setting call returns false check the details of your solver. The get methods return true if the given parameter is applicable for the solver and is implemented. In this case the value of the parameter is returned in the second argument. Otherwise they return false.
bool	setIntParam (OsiIntParam key, int value)
	Set an integer parameter. More...

bool	setDblParam (OsiDblParam key, double value)
	Set a double parameter. More...

bool	getIntParam (OsiIntParam key, int &value) const
	Get an integer parameter. More...

bool	getDblParam (OsiDblParam key, double &value) const
	Get a double parameter. More...

bool	getStrParam (OsiStrParam key, std::string &value) const
	Get a string parameter. More...

void	setTimeLimit (double value)

double	getTimeLimit () const

Methods returning info on how the solution process terminated
virtual bool	isAbandoned () const
	Are there a numerical difficulties? More...

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

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

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

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

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

virtual bool	isTimeLimitReached () const
	Time limit reached? More...

WarmStart related methods
CoinWarmStart *	getEmptyWarmStart () const
	Get empty warm start object. More...

virtual CoinWarmStart *	getWarmStart () const
	Get warmstarting information. More...

virtual bool	setWarmStart (const CoinWarmStart *warmstart)
	Set warmstarting information. More...

Hotstart related methods (primarily used in strong branching). <br>
The user can create a hotstart (a snapshot) of the optimization process then reoptimize over and over again always starting from there. NOTE: between hotstarted optimizations only bound changes are allowed.
virtual void	markHotStart ()
	Create a hotstart point of the optimization process. More...

virtual void	solveFromHotStart ()
	Optimize starting from the hotstart. More...

virtual void	unmarkHotStart ()
	Delete the snapshot. More...

Methods related to querying the input data
virtual int	getNumCols () const
	Get number of columns. More...

virtual int	getNumRows () const
	Get number of rows. More...

virtual int	getNumElements () const
	Get number of nonzero elements. More...

virtual const double *	getColLower () const
	Get pointer to array[getNumCols()] of column lower bounds. More...

virtual const double *	getColUpper () const
	Get pointer to array[getNumCols()] of column upper bounds. More...

virtual const char *	getRowSense () const
	Get pointer to array[getNumRows()] of row constraint senses. More...

virtual const double *	getRightHandSide () const
	Get pointer to array[getNumRows()] of rows right-hand sides. More...

virtual const double *	getRowRange () const
	Get pointer to array[getNumRows()] of row ranges. More...

virtual const double *	getRowLower () const
	Get pointer to array[getNumRows()] of row lower bounds. More...

virtual const double *	getRowUpper () const
	Get pointer to array[getNumRows()] of row upper bounds. More...

virtual const double *	getObjCoefficients () const
	Get pointer to array[getNumCols()] of objective function coefficients. More...

virtual double	getObjSense () const
	Get objective function sense (1 for min (default), -1 for max) More...

virtual bool	isContinuous (int colNumber) const
	Return true if column is continuous. More...

virtual const CoinPackedMatrix *	getMatrixByRow () const
	Get pointer to row-wise copy of matrix. More...

virtual const CoinPackedMatrix *	getMatrixByCol () const
	Get pointer to column-wise copy of matrix. More...

virtual double	getInfinity () const
	Get solver's value for infinity. More...

Methods related to querying the solution
virtual const double *	getColSolution () const
	Get pointer to array[getNumCols()] of primal solution vector. More...

virtual const double *	getRowPrice () const
	Get pointer to array[getNumRows()] of dual prices. More...

virtual const double *	getReducedCost () const
	Get a pointer to array[getNumCols()] of reduced costs. More...

virtual const double *	getRowActivity () const
	Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector. More...

virtual double	getObjValue () const
	Get objective function value. More...

virtual int	getIterationCount () const
	Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver. More...

virtual std::vector< double * >	getDualRays (int maxNumRays, bool fullRay=false) const
	Get as many dual rays as the solver can provide. More...

virtual std::vector< double * >	getPrimalRays (int maxNumRays) const
	Get as many primal rays as the solver can provide. More...

Changing bounds on variables and constraints
virtual void	setObjCoeff (int elementIndex, double elementValue)
	Set an objective function coefficient. More...

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

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

virtual void	setColBounds (int elementIndex, double lower, double upper)
	Set a single column lower and upper bound The default implementation just invokes `setColLower` and `setColUpper` More...

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

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

virtual void	setRowBounds (int elementIndex, double lower, double upper)
	Set a single row lower and upper bound The default implementation just invokes `setRowUower` and `setRowUpper` More...

virtual void	setRowType (int index, char sense, double rightHandSide, double range)
	Set the type of a single row More...

Integrality related changing methods
virtual void	setContinuous (int index)
	Set the index-th variable to be a continuous variable. More...

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

Methods to expand a problem.<br>
Note that if a column is added then by default it will correspond to a continuous variable.
virtual void	addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)
	Add a column (primal variable) to the problem. More...

virtual void	deleteCols (const int num, const int *colIndices)
	Remove a set of columns (primal variables) from the problem. More...

virtual void	addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)
	Add a row (constraint) to the problem. More...

virtual void	addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)
	Add a row (constraint) to the problem. More...

virtual void	deleteRows (const int num, const int *rowIndices)
	Delete a set of rows (constraints) from the problem. More...

Methods to input a problem
virtual void	loadProblem (const CoinPackedMatrix &matrix, const double collb, const double colub, const double obj, const double rowlb, const double *rowub)
	Load in an problem by copying the arguments (the constraints on the rows are given by lower and upper bounds). More...

virtual void	assignProblem (CoinPackedMatrix &matrix, double &collb, double &colub, double &obj, double &rowlb, double &rowub)
	Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by lower and upper bounds). More...

virtual void	loadProblem (const CoinPackedMatrix &matrix, const double collb, const double colub, const double obj, const char rowsen, const double rowrhs, const double rowrng)
	Load in an problem by copying the arguments (the constraints on the rows are given by sense/rhs/range triplets). More...

virtual void	assignProblem (CoinPackedMatrix &matrix, double &collb, double &colub, double &obj, char &rowsen, double &rowrhs, double *&rowrng)
	Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by sense/rhs/range triplets). More...

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

virtual void	loadProblem (const int numcols, const int numrows, const int start, const int index, const double value, const double collb, const double colub, const double obj, const char rowsen, const double rowrhs, const double *rowrng)
	Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps). More...

virtual int	readMps (const char filename, const char extension="mps")
	Read an mps file from the given filename. More...

virtual void	writeMps (const char filename, const char extension="mps", double objSense=0.0) const
	Write the problem into an mps file of the given filename. More...

Constructors and destructor
	OsiSpxSolverInterface ()
	Default Constructor. More...

virtual OsiSolverInterface *	clone (bool copyData=true) const
	Clone. More...

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

OsiSpxSolverInterface &	operator= (const OsiSpxSolverInterface &rhs)
	Assignment operator. More...

virtual	~OsiSpxSolverInterface ()
	Destructor. More...

Public Member Functions inherited from OsiSolverInterface
virtual bool	setStrParam (OsiStrParam key, const std::string &value)
	Set a string parameter. More...

virtual bool	setHintParam (OsiHintParam key, bool yesNo=true, OsiHintStrength strength=OsiHintTry, void *=NULL)
	Set a hint parameter. More...

virtual bool	getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength, void *&otherInformation) const
	Get a hint parameter (all information) More...

virtual bool	getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength) const
	Get a hint parameter (sense and strength only) More...

virtual bool	getHintParam (OsiHintParam key, bool &yesNo) const
	Get a hint parameter (sense only) More...

void	copyParameters (OsiSolverInterface &rhs)
	Copy all parameters in this section from one solver to another. More...

double	getIntegerTolerance () const
	Return the integrality tolerance of the underlying solver. More...

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

virtual CoinWarmStart *	getPointerToWarmStart (bool &mustDelete)
	Get warm start information. More...

virtual int	getNumIntegers () const
	Get the number of integer variables. More...

virtual bool	isBinary (int colIndex) const
	Return true if the variable is binary. More...

virtual bool	isInteger (int colIndex) const
	Return true if the variable is integer. More...

virtual bool	isIntegerNonBinary (int colIndex) const
	Return true if the variable is general integer. More...

virtual bool	isFreeBinary (int colIndex) const
	Return true if the variable is binary and not fixed. More...

const char *	columnType (bool refresh=false) const
	Return an array[getNumCols()] of column types. More...

virtual const char *	getColType (bool refresh=false) const
	Return an array[getNumCols()] of column types. More...

virtual CoinPackedMatrix *	getMutableMatrixByRow () const
	Get a pointer to a mutable row-wise copy of the matrix. More...

virtual CoinPackedMatrix *	getMutableMatrixByCol () const
	Get a pointer to a mutable column-wise copy of the matrix. More...

virtual const double *	getStrictColSolution ()
	Get a pointer to an array[getNumCols()] of primal variable values guaranteed to be between the column lower and upper bounds. More...

virtual OsiVectorInt	getFractionalIndices (const double etol=1.e-05) const
	Get vector of indices of primal variables which are integer variables but have fractional values in the current solution. More...

virtual void	setObjCoeffSet (const int indexFirst, const int indexLast, const double *coeffList)
	Set a set of objective function coefficients. More...

virtual void	setObjective (const double *array)
	Set the objective coefficients for all columns. More...

virtual void	setColLower (const double *array)
	Set the lower bounds for all columns. More...

virtual void	setColUpper (const double *array)
	Set the upper bounds for all columns. More...

virtual void	setColSetBounds (const int indexFirst, const int indexLast, const double *boundList)
	Set the upper and lower bounds of a set of columns. More...

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

virtual void	setRowSetTypes (const int indexFirst, const int indexLast, const char senseList, const double rhsList, const double *rangeList)
	Set the type of a set of rows. More...

virtual int	reducedCostFix (double gap, bool justInteger=true)
	Fix variables at bound based on reduced cost. More...

virtual void	setContinuous (const int *indices, int len)
	Set the variables listed in indices (which is of length len) to be continuous variables. More...

virtual void	setInteger (const int *indices, int len)
	Set the variables listed in indices (which is of length len) to be integer variables. More...

virtual std::string	dfltRowColName (char rc, int ndx, unsigned digits=7) const
	Generate a standard name of the form Rnnnnnnn or Cnnnnnnn. More...

virtual std::string	getObjName (unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
	Return the name of the objective function. More...

virtual void	setObjName (std::string name)
	Set the name of the objective function. More...

virtual std::string	getRowName (int rowIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
	Return the name of the row. More...

virtual const OsiNameVec &	getRowNames ()
	Return a pointer to a vector of row names. More...

virtual void	setRowName (int ndx, std::string name)
	Set a row name. More...

virtual void	setRowNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
	Set multiple row names. More...

virtual void	deleteRowNames (int tgtStart, int len)
	Delete len row names starting at index tgtStart. More...

virtual std::string	getColName (int colIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
	Return the name of the column. More...

virtual const OsiNameVec &	getColNames ()
	Return a pointer to a vector of column names. More...

virtual void	setColName (int ndx, std::string name)
	Set a column name. More...

virtual void	setColNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
	Set multiple column names. More...

virtual void	deleteColNames (int tgtStart, int len)
	Delete len column names starting at index tgtStart. More...

void	setRowColNames (const CoinMpsIO &mps)
	Set row and column names from a CoinMpsIO object. More...

void	setRowColNames (CoinModel &mod)
	Set row and column names from a CoinModel object. More...

void	setRowColNames (CoinLpIO &mod)
	Set row and column names from a CoinLpIO object. More...

virtual void	addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj, std::string name)
	Add a named column (primal variable) to the problem. More...

virtual void	addCol (int numberElements, const int rows, const double elements, const double collb, const double colub, const double obj)
	Add a column (primal variable) to the problem. More...

virtual void	addCol (int numberElements, const int rows, const double elements, const double collb, const double colub, const double obj, std::string name)
	Add a named column (primal variable) to the problem. More...

virtual void	addCols (const int numcols, const CoinPackedVectorBase const cols, const double collb, const double colub, const double *obj)
	Add a set of columns (primal variables) to the problem. More...

virtual void	addCols (const int numcols, const int columnStarts, const int rows, const double elements, const double collb, const double colub, const double obj)
	Add a set of columns (primal variables) to the problem. More...

void	addCols (const CoinBuild &buildObject)
	Add columns using a CoinBuild object. More...

int	addCols (CoinModel &modelObject)
	Add columns from a model object. More...

virtual void	addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub, std::string name)
	Add a named row (constraint) to the problem. More...

virtual void	addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng, std::string name)
	Add a named row (constraint) to the problem. More...

virtual void	addRow (int numberElements, const int columns, const double element, const double rowlb, const double rowub)

virtual void	addRows (const int numrows, const CoinPackedVectorBase const rows, const double rowlb, const double rowub)

virtual void	addRows (const int numrows, const CoinPackedVectorBase const rows, const char rowsen, const double rowrhs, const double *rowrng)
	Add a set of rows (constraints) to the problem. More...

virtual void	addRows (const int numrows, const int rowStarts, const int columns, const double element, const double rowlb, const double *rowub)
	Add a set of rows (constraints) to the problem. More...

void	addRows (const CoinBuild &buildObject)
	Add rows using a CoinBuild object. More...

int	addRows (CoinModel &modelObject)

virtual void	replaceMatrixOptional (const CoinPackedMatrix &)
	Replace the constraint matrix. More...

virtual void	replaceMatrix (const CoinPackedMatrix &)
	Replace the constraint matrix. More...

virtual void	saveBaseModel ()
	Save a copy of the base model. More...

virtual void	restoreBaseModel (int numberRows)
	Reduce the constraint system to the specified number of constraints. More...

virtual ApplyCutsReturnCode	applyCuts (const OsiCuts &cs, double effectivenessLb=0.0)
	Apply a collection of cuts. More...

virtual void	applyRowCuts (int numberCuts, const OsiRowCut *cuts)
	Apply a collection of row cuts which are all effective. More...

virtual void	applyRowCuts (int numberCuts, const OsiRowCut **cuts)
	Apply a collection of row cuts which are all effective. More...

void	deleteBranchingInfo (int numberDeleted, const int *which)
	Deletes branching information before columns deleted. More...

virtual int	loadFromCoinModel (CoinModel &modelObject, bool keepSolution=false)
	Load a model from a CoinModel object. Return the number of errors encountered. More...

virtual int	readMps (const char filename, const char extension, int &numberSets, CoinSet **&sets)
	Read a problem in MPS format from the given full filename. More...

virtual int	readGMPL (const char filename, const char dataname=NULL)
	Read a problem in GMPL format from the given filenames. More...

int	writeMpsNative (const char filename, const char rowNames, const char columnNames, int formatType=0, int numberAcross=2, double objSense=0.0, int numberSOS=0, const CoinSet setInfo=NULL) const
	Write the problem in MPS format to the specified file with more control over the output. More...

virtual void	writeLp (const char filename, const char extension="lp", double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
	Write the problem into an Lp file of the given filename with the specified extension. More...

virtual void	writeLp (FILE *fp, double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
	Write the problem into the file pointed to by the parameter fp. More...

int	writeLpNative (const char filename, char const const const rowNames, char const const *const columnNames, const double epsilon=1.0e-5, const int numberAcross=10, const int decimals=5, const double objSense=0.0, const bool useRowNames=true) const
	Write the problem into an Lp file. More...

int	writeLpNative (FILE fp, char const const const rowNames, char const const *const columnNames, const double epsilon=1.0e-5, const int numberAcross=10, const int decimals=5, const double objSense=0.0, const bool useRowNames=true) const
	Write the problem into the file pointed to by the parameter fp. More...

virtual int	readLp (const char *filename, const double epsilon=1e-5)
	Read file in LP format from file with name filename. More...

int	readLp (FILE *fp, const double epsilon=1e-5)
	Read file in LP format from the file pointed to by fp. More...

int	differentModel (OsiSolverInterface &other, bool ignoreNames=true)
	Check two models against each other. More...

void	setApplicationData (void *appData)
	Set application data. More...

void	setAuxiliaryInfo (OsiAuxInfo *auxiliaryInfo)
	Create a clone of an Auxiliary Information object. More...

void *	getApplicationData () const
	Get application data. More...

OsiAuxInfo *	getAuxiliaryInfo () const
	Get pointer to auxiliary info object. More...

virtual void	passInMessageHandler (CoinMessageHandler *handler)
	Pass in a message handler. More...

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

void	setLanguage (CoinMessages::Language language)
	Pass in a message handler. More...

CoinMessageHandler *	messageHandler () const
	Return a pointer to the current message handler. More...

CoinMessages	messages ()
	Return the current set of messages. More...

CoinMessages *	messagesPointer ()
	Return a pointer to the current set of messages. More...

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

void	findIntegers (bool justCount)
	Identify integer variables and create corresponding objects. More...

virtual int	findIntegersAndSOS (bool justCount)
	Identify integer variables and SOS and create corresponding objects. More...

int	numberObjects () const
	Get the number of objects. More...

void	setNumberObjects (int number)
	Set the number of objects. More...

OsiObject **	objects () const
	Get the array of objects. More...

const OsiObject *	object (int which) const
	Get the specified object. More...

OsiObject *	modifiableObject (int which) const
	Get the specified object. More...

void	deleteObjects ()
	Delete all object information. More...

void	addObjects (int numberObjects, OsiObject **objects)
	Add in object information. More...

double	forceFeasible ()
	Use current solution to set bounds so current integer feasible solution will stay feasible. More...

virtual void	activateRowCutDebugger (const char *modelName)
	Activate the row cut debugger. More...

virtual void	activateRowCutDebugger (const double *solution, bool enforceOptimality=true)
	Activate the row cut debugger using a full solution array. More...

const OsiRowCutDebugger *	getRowCutDebugger () const
	Get the row cut debugger provided the solution known to the debugger is within the feasible region held in the solver. More...

OsiRowCutDebugger *	getRowCutDebuggerAlways () const
	Get the row cut debugger object. More...

virtual int	canDoSimplexInterface () const
	Return the simplex implementation level. More...

virtual void	enableFactorization () const
	Prepare the solver for the use of tableau access methods. More...

virtual void	disableFactorization () const
	Undo the effects of enableFactorization. More...

virtual bool	basisIsAvailable () const
	Check if an optimal basis is available. More...

bool	optimalBasisIsAvailable () const
	Synonym for basisIsAvailable. More...

virtual void	getBasisStatus (int cstat, int rstat) const
	Retrieve status information for column and row variables. More...

virtual int	setBasisStatus (const int cstat, const int rstat)
	Set the status of column and row variables and update the basis factorization and solution. More...

virtual void	getReducedGradient (double columnReducedCosts, double duals, const double *c) const
	Calculate duals and reduced costs for the given objective coefficients. More...

virtual void	getBInvARow (int row, double z, double slack=NULL) const
	Get a row of the tableau. More...

virtual void	getBInvRow (int row, double *z) const
	Get a row of the basis inverse. More...

virtual void	getBInvACol (int col, double *vec) const
	Get a column of the tableau. More...

virtual void	getBInvCol (int col, double *vec) const
	Get a column of the basis inverse. More...

virtual void	getBasics (int *index) const
	Get indices of basic variables. More...

virtual void	enableSimplexInterface (bool doingPrimal)
	Enables normal operation of subsequent functions. More...

virtual void	disableSimplexInterface ()
	Undo whatever setting changes the above method had to make. More...

virtual int	pivot (int colIn, int colOut, int outStatus)
	Perform a pivot by substituting a colIn for colOut in the basis. More...

virtual int	primalPivotResult (int colIn, int sign, int &colOut, int &outStatus, double &t, CoinPackedVector *dx)
	Obtain a result of the primal pivot Outputs: colOut – leaving column, outStatus – its status, t – step size, and, if dx!=NULL, *dx – primal ray direction. More...

virtual int	dualPivotResult (int &colIn, int &sign, int colOut, int outStatus, double &t, CoinPackedVector *dx)
	Obtain a result of the dual pivot (similar to the previous method) Differences: entering variable and a sign of its change are now the outputs, the leaving variable and its statuts – the inputs If dx!=NULL, then *dx contains dual ray Return code: same. More...

	OsiSolverInterface ()
	Default Constructor. More...

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

OsiSolverInterface &	operator= (const OsiSolverInterface &rhs)
	Assignment operator. More...

virtual	~OsiSolverInterface ()
	Destructor. More...

virtual void	reset ()
	Reset the solver interface. More...

Protected Member Functions
Protected methods
virtual void	applyRowCut (const OsiRowCut &rc)
	Apply a row cut. Return true if cut was applied. More...

virtual void	applyColCut (const OsiColCut &cc)
	Apply a column cut (bound adjustment). More...

Protected Member Functions inherited from OsiSolverInterface
void	convertBoundToSense (const double lower, const double upper, char &sense, double &right, double &range) const
	A quick inlined function to convert from the lb/ub style of constraint definition to the sense/rhs/range style. More...

void	convertSenseToBound (const char sense, const double right, const double range, double &lower, double &upper) const
	A quick inlined function to convert from the sense/rhs/range style of constraint definition to the lb/ub style. More...

template<class T >
T	forceIntoRange (const T value, const T lower, const T upper) const
	A quick inlined function to force a value to be between a minimum and a maximum value. More...

void	setInitialData ()
	Set OsiSolverInterface object state for default constructor. More...

Protected Attributes
Protected member data
soplex::SPxOut *	spxout_
	SoPlex output object. More...

soplex::SoPlex *	soplex_
	SoPlex solver object. More...

Protected Attributes inherited from OsiSolverInterface
OsiRowCutDebugger *	rowCutDebugger_
	Pointer to row cut debugger object. More...

CoinMessageHandler *	handler_
	Message handler. More...

bool	defaultHandler_
	Flag to say if the currrent handler is the default handler. More...

CoinMessages	messages_
	Messages. More...

int	numberIntegers_
	Number of integers. More...

int	numberObjects_
	Total number of objects. More...

OsiObject **	object_
	Integer and ... information (integer info normally at beginning) More...

char *	columnType_
	Column type 0 - continuous 1 - binary (may get fixed later) 2 - general integer (may get fixed later) More...

Private Member Functions
Private methods
void	freeCachedColRim ()
	free cached column rim vectors More...

void	freeCachedRowRim ()
	free cached row rim vectors More...

void	freeCachedResults ()
	free cached result vectors More...

void	freeCachedMatrix ()
	free cached matrices More...

void	freeCachedData (int keepCached=KEEPCACHED_NONE)
	free all cached data (except specified entries, see getLpPtr()) More...

void	freeAllMemory ()
	free all allocated memory More...

Private Attributes
Private member data
soplex::DIdxSet *	spxintvars_
	indices of integer variables More...

void *	hotStartCStat_
	Hotstart information. More...

int	hotStartCStatSize_
	indices of integer variables More...

void *	hotStartRStat_
	indices of integer variables More...

int	hotStartRStatSize_
	indices of integer variables More...

int	hotStartMaxIteration_
	indices of integer variables More...

Cached information derived from the SoPlex model
soplex::DVector *	obj_
	Pointer to objective Vector. More...

char *	rowsense_
	Pointer to dense vector of row sense indicators. More...

double *	rhs_
	Pointer to dense vector of row right-hand side values. More...

double *	rowrange_
	Pointer to dense vector of slack upper bounds for range constraints (undefined for non-range rows) More...

soplex::DVector *	colsol_
	Pointer to primal solution vector. More...

soplex::DVector *	rowsol_
	Pointer to dual solution vector. More...

soplex::DVector *	redcost_
	Pointer to reduced cost vector. More...

soplex::DVector *	rowact_
	Pointer to row activity (slack) vector. More...

CoinPackedMatrix *	matrixByRow_
	Pointer to row-wise copy of problem matrix coefficients. More...

CoinPackedMatrix *	matrixByCol_
	Pointer to row-wise copy of problem matrix coefficients. More...

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

Detailed Description

SoPlex Solver Interface Instantiation of OsiSpxSolverInterface for SoPlex.

Definition at line 37 of file OsiSpxSolverInterface.hpp.

Member Enumeration Documentation

enum OsiSpxSolverInterface::keepCachedFlag

Enumerator
KEEPCACHED_NONE	discard all cached data (default)
KEEPCACHED_COLUMN	column information: objective values, lower and upper bounds, variable types
KEEPCACHED_ROW	row information: right hand sides, ranges and senses, lower and upper bounds for row
KEEPCACHED_MATRIX	problem matrix: matrix ordered by column and by row
KEEPCACHED_RESULTS	LP solution: primal and dual solution, reduced costs, row activities.
KEEPCACHED_PROBLEM	only discard cached LP solution
KEEPCACHED_ALL	keep all cached data (similar to getMutableLpPtr())
FREECACHED_COLUMN	free only cached column and LP solution information
FREECACHED_ROW	free only cached row and LP solution information
FREECACHED_MATRIX	free only cached matrix and LP solution information
FREECACHED_RESULTS	free only cached LP solution information

Definition at line 618 of file OsiSpxSolverInterface.hpp.

Constructor & Destructor Documentation

OsiSpxSolverInterface::OsiSpxSolverInterface ( )

Default Constructor.

OsiSpxSolverInterface::OsiSpxSolverInterface ( const OsiSpxSolverInterface & )

Copy constructor.

virtual OsiSpxSolverInterface::~OsiSpxSolverInterface ( )

virtual

Destructor.

Member Function Documentation

virtual void OsiSpxSolverInterface::initialSolve ( )

virtual

Solve initial LP relaxation.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::resolve ( )

virtual

Resolve an LP relaxation after problem modification.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::branchAndBound ( )

virtual

Invoke solver's built-in enumeration algorithm.

Implements OsiSolverInterface.

bool OsiSpxSolverInterface::setIntParam	(	OsiIntParam	key,
		int	value
	)

virtual

Set an integer parameter.

Reimplemented from OsiSolverInterface.

bool OsiSpxSolverInterface::setDblParam	(	OsiDblParam	key,
		double	value
	)

virtual

Set a double parameter.

Reimplemented from OsiSolverInterface.

bool OsiSpxSolverInterface::getIntParam	(	OsiIntParam	key,
		int &	value
	)		const

virtual

Get an integer parameter.

Reimplemented from OsiSolverInterface.

bool OsiSpxSolverInterface::getDblParam	(	OsiDblParam	key,
		double &	value
	)		const

virtual

Get a double parameter.

Reimplemented from OsiSolverInterface.

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

virtual

Get a string parameter.

Reimplemented from OsiSolverInterface.

void OsiSpxSolverInterface::setTimeLimit ( double value )

double OsiSpxSolverInterface::getTimeLimit ( ) const

virtual bool OsiSpxSolverInterface::isAbandoned ( ) const

virtual

Are there a numerical difficulties?

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isProvenOptimal ( ) const

virtual

Is optimality proven?

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isProvenPrimalInfeasible ( ) const

virtual

Is primal infeasiblity proven?

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isProvenDualInfeasible ( ) const

virtual

Is dual infeasiblity proven?

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isDualObjectiveLimitReached ( ) const

virtual

Is the given dual objective limit reached?

Reimplemented from OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isIterationLimitReached ( ) const

virtual

Iteration limit reached?

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isTimeLimitReached ( ) const

virtual

Time limit reached?

CoinWarmStart* OsiSpxSolverInterface::getEmptyWarmStart ( ) const

inlinevirtual

Get empty warm start object.

Implements OsiSolverInterface.

Definition at line 111 of file OsiSpxSolverInterface.hpp.

virtual CoinWarmStart* OsiSpxSolverInterface::getWarmStart ( ) const

virtual

Get warmstarting information.

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::setWarmStart ( const CoinWarmStart * warmstart )

virtual

Set warmstarting information.

Return true/false depending on whether the warmstart information was accepted or not.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::markHotStart ( )

virtual

Create a hotstart point of the optimization process.

Reimplemented from OsiSolverInterface.

virtual void OsiSpxSolverInterface::solveFromHotStart ( )

virtual

Optimize starting from the hotstart.

Reimplemented from OsiSolverInterface.

virtual void OsiSpxSolverInterface::unmarkHotStart ( )

virtual

Delete the snapshot.

Reimplemented from OsiSolverInterface.

virtual int OsiSpxSolverInterface::getNumCols ( ) const

virtual

Get number of columns.

Implements OsiSolverInterface.

virtual int OsiSpxSolverInterface::getNumRows ( ) const

virtual

Get number of rows.

Implements OsiSolverInterface.

virtual int OsiSpxSolverInterface::getNumElements ( ) const

virtual

Get number of nonzero elements.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getColLower ( ) const

virtual

Get pointer to array[getNumCols()] of column lower bounds.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getColUpper ( ) const

virtual

Get pointer to array[getNumCols()] of column upper bounds.

Implements OsiSolverInterface.

virtual const char* OsiSpxSolverInterface::getRowSense ( ) const

virtual

Get pointer to array[getNumRows()] of row constraint senses.

'L': <= constraint
'E': = constraint
'G': >= constraint
'R': ranged constraint
'N': free constraint

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getRightHandSide ( ) const

virtual

Get pointer to array[getNumRows()] of rows right-hand sides.

if rowsense()[i] == 'L' then rhs()[i] == rowupper()[i]
if rowsense()[i] == 'G' then rhs()[i] == rowlower()[i]
if rowsense()[i] == 'R' then rhs()[i] == rowupper()[i]
if rowsense()[i] == 'N' then rhs()[i] == 0.0

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getRowRange ( ) const

virtual

Get pointer to array[getNumRows()] of row ranges.

if rowsense()[i] == 'R' then rowrange()[i] == rowupper()[i] - rowlower()[i]
if rowsense()[i] != 'R' then rowrange()[i] is 0.0

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getRowLower ( ) const

virtual

Get pointer to array[getNumRows()] of row lower bounds.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getRowUpper ( ) const

virtual

Get pointer to array[getNumRows()] of row upper bounds.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getObjCoefficients ( ) const

virtual

Get pointer to array[getNumCols()] of objective function coefficients.

Implements OsiSolverInterface.

virtual double OsiSpxSolverInterface::getObjSense ( ) const

virtual

Get objective function sense (1 for min (default), -1 for max)

Implements OsiSolverInterface.

virtual bool OsiSpxSolverInterface::isContinuous ( int colNumber ) const

virtual

Return true if column is continuous.

Implements OsiSolverInterface.

virtual const CoinPackedMatrix* OsiSpxSolverInterface::getMatrixByRow ( ) const

virtual

Get pointer to row-wise copy of matrix.

Implements OsiSolverInterface.

virtual const CoinPackedMatrix* OsiSpxSolverInterface::getMatrixByCol ( ) const

virtual

Get pointer to column-wise copy of matrix.

Implements OsiSolverInterface.

virtual double OsiSpxSolverInterface::getInfinity ( ) const

virtual

Get solver's value for infinity.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getColSolution ( ) const

virtual

Get pointer to array[getNumCols()] of primal solution vector.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getRowPrice ( ) const

virtual

Get pointer to array[getNumRows()] of dual prices.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getReducedCost ( ) const

virtual

Get a pointer to array[getNumCols()] of reduced costs.

Implements OsiSolverInterface.

virtual const double* OsiSpxSolverInterface::getRowActivity ( ) const

virtual

Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector.

Implements OsiSolverInterface.

virtual double OsiSpxSolverInterface::getObjValue ( ) const

virtual

Get objective function value.

Implements OsiSolverInterface.

virtual int OsiSpxSolverInterface::getIterationCount ( ) const

virtual

Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver.

Implements OsiSolverInterface.

virtual std::vector<double*> OsiSpxSolverInterface::getDualRays	(	int	maxNumRays,
		bool	fullRay = `false`
	)		const

virtual

Get as many dual rays as the solver can provide.

(In case of proven primal infeasibility there should be at least one.)

The first getNumRows() ray components will always be associated with the row duals (as returned by getRowPrice()). If fullRay is true, the final getNumCols() entries will correspond to the ray components associated with the nonbasic variables. If the full ray is requested and the method cannot provide it, it will throw an exception.

NOTE for implementers of solver interfaces:
The double pointers in the vector should point to arrays of length getNumRows() and they should be allocated via new[].

NOTE for users of solver interfaces:
It is the user's responsibility to free the double pointers in the vector using delete[].

Implements OsiSolverInterface.

virtual std::vector<double*> OsiSpxSolverInterface::getPrimalRays ( int maxNumRays ) const

virtual

Get as many primal rays as the solver can provide.

(In case of proven dual infeasibility there should be at least one.)

NOTE for implementers of solver interfaces:
The double pointers in the vector should point to arrays of length getNumCols() and they should be allocated via new[].

NOTE for users of solver interfaces:
It is the user's responsibility to free the double pointers in the vector using delete[].

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setObjCoeff	(	int	elementIndex,
		double	elementValue
	)

virtual

Set an objective function coefficient.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setColLower	(	int	elementIndex,
		double	elementValue
	)

virtual

Set a single column lower bound
Use -COIN_DBL_MAX for -infinity.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setColUpper	(	int	elementIndex,
		double	elementValue
	)

virtual

Set a single column upper bound
Use COIN_DBL_MAX for infinity.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setColBounds	(	int	elementIndex,
		double	lower,
		double	upper
	)

virtual

Set a single column lower and upper bound
The default implementation just invokes setColLower and setColUpper

Reimplemented from OsiSolverInterface.

virtual void OsiSpxSolverInterface::setRowLower	(	int	elementIndex,
		double	elementValue
	)

virtual

Set a single row lower bound
Use -COIN_DBL_MAX for -infinity.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setRowUpper	(	int	elementIndex,
		double	elementValue
	)

virtual

Set a single row upper bound
Use COIN_DBL_MAX for infinity.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setRowBounds	(	int	elementIndex,
		double	lower,
		double	upper
	)

virtual

Set a single row lower and upper bound
The default implementation just invokes setRowUower and setRowUpper

Reimplemented from OsiSolverInterface.

virtual void OsiSpxSolverInterface::setRowType	(	int	index,
		char	sense,
		double	rightHandSide,
		double	range
	)

virtual

Set the type of a single row

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setContinuous ( int index )

virtual

Set the index-th variable to be a continuous variable.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setInteger ( int index )

virtual

Set the index-th variable to be an integer variable.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setObjSense ( double s )

virtual

Set objective function sense (1 for min (default), -1 for max,)

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setColSolution ( const double * colsol )

virtual

Set the primal solution column values.

colsol[numcols()] is an array of values of the problem column variables. These values are copied to memory owned by the solver object or the solver. They will be returned as the result of colsol() until changed by another call to setColsol() or by a call to any solver routine. Whether the solver makes use of the solution in any way is solver-dependent.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::setRowPrice ( const double * rowprice )

virtual

Set dual solution vector.

rowprice[numrows()] is an array of values of the problem row dual variables. These values are copied to memory owned by the solver object or the solver. They will be returned as the result of rowprice() until changed by another call to setRowprice() or by a call to any solver routine. Whether the solver makes use of the solution in any way is solver-dependent.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::addCol	(	const CoinPackedVectorBase &	vec,
		const double	collb,
		const double	colub,
		const double	obj
	)

virtual

Add a column (primal variable) to the problem.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::deleteCols	(	const int	num,
		const int *	colIndices
	)

virtual

Remove a set of columns (primal variables) from the problem.

The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted variables are nonbasic.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::addRow	(	const CoinPackedVectorBase &	vec,
		const double	rowlb,
		const double	rowub
	)

virtual

Add a row (constraint) to the problem.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::addRow	(	const CoinPackedVectorBase &	vec,
		const char	rowsen,
		const double	rowrhs,
		const double	rowrng
	)

virtual

Add a row (constraint) to the problem.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::deleteRows	(	const int	num,
		const int *	rowIndices
	)

virtual

Delete a set of rows (constraints) from the problem.

The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted rows are loose.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::loadProblem	(	const CoinPackedMatrix &	matrix,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const double *	rowlb,
		const double *	rowub
	)

virtual

Load in an problem by copying the arguments (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

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::assignProblem	(	CoinPackedMatrix *&	matrix,
		double *&	collb,
		double *&	colub,
		double *&	obj,
		double *&	rowlb,
		double *&	rowub
	)

virtual

Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by lower and upper bounds).

For default values see the previous method.
WARNING: The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::loadProblem	(	const CoinPackedMatrix &	matrix,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const char *	rowsen,
		const double *	rowrhs,
		const double *	rowrng
	)

virtual

Load in an problem by copying the arguments (the constraints on the rows are given by sense/rhs/range triplets).

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
obj: all variables have 0 objective coefficient
rowsen: all rows are >=
rowrhs: all right hand sides are 0
rowrng: 0 for the ranged rows

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::assignProblem	(	CoinPackedMatrix *&	matrix,
		double *&	collb,
		double *&	colub,
		double *&	obj,
		char *&	rowsen,
		double *&	rowrhs,
		double *&	rowrng
	)

virtual

Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by sense/rhs/range triplets).

For default values see the previous method.
WARNING: The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::loadProblem	(	const int	numcols,
		const int	numrows,
		const int *	start,
		const int *	index,
		const double *	value,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const double *	rowlb,
		const double *	rowub
	)

virtual

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

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::loadProblem	(	const int	numcols,
		const int	numrows,
		const int *	start,
		const int *	index,
		const double *	value,
		const double *	collb,
		const double *	colub,
		const double *	obj,
		const char *	rowsen,
		const double *	rowrhs,
		const double *	rowrng
	)

virtual

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

Implements OsiSolverInterface.

virtual int OsiSpxSolverInterface::readMps	(	const char *	filename,
		const char *	extension = `"mps"`
	)

virtual

Read an mps file from the given filename.

Reimplemented from OsiSolverInterface.

virtual void OsiSpxSolverInterface::writeMps	(	const char *	filename,
		const char *	extension = `"mps"`,
		double	objSense = `0.0`
	)		const

virtual

Write the problem into an mps file of the given filename.

If objSense is non zero then -1.0 forces the code to write a maximization objective and +1.0 to write a minimization one. If 0.0 then solver can do what it wants

Implements OsiSolverInterface.

virtual OsiSolverInterface* OsiSpxSolverInterface::clone ( bool copyData = true ) const

virtual

Clone.

Implements OsiSolverInterface.

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

Assignment operator.

soplex::SoPlex* OsiSpxSolverInterface::getLpPtr ( int keepCached = KEEPCACHED_NONE )

soplex::SPxOut* OsiSpxSolverInterface::getSPxOut ( )

inline

Definition at line 645 of file OsiSpxSolverInterface.hpp.

virtual void OsiSpxSolverInterface::applyRowCut ( const OsiRowCut & rc )

protectedvirtual

Apply a row cut. Return true if cut was applied.

Implements OsiSolverInterface.

virtual void OsiSpxSolverInterface::applyColCut ( const OsiColCut & cc )

protectedvirtual

Apply a column cut (bound adjustment).

Return true if cut was applied.

Implements OsiSolverInterface.

void OsiSpxSolverInterface::freeCachedColRim ( )

private

free cached column rim vectors

void OsiSpxSolverInterface::freeCachedRowRim ( )

private

free cached row rim vectors

void OsiSpxSolverInterface::freeCachedResults ( )

private

free cached result vectors

void OsiSpxSolverInterface::freeCachedMatrix ( )

private

free cached matrices

void OsiSpxSolverInterface::freeCachedData ( int keepCached = KEEPCACHED_NONE )

private

free all cached data (except specified entries, see getLpPtr())

void OsiSpxSolverInterface::freeAllMemory ( )

private

free all allocated memory

Friends And Related Function Documentation

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

friend

A function that tests the methods in the OsiSpxSolverInterface class.

Member Data Documentation

soplex::SPxOut* OsiSpxSolverInterface::spxout_

protected

SoPlex output object.

Definition at line 663 of file OsiSpxSolverInterface.hpp.

soplex::SoPlex* OsiSpxSolverInterface::soplex_

protected

SoPlex solver object.

Definition at line 665 of file OsiSpxSolverInterface.hpp.

soplex::DIdxSet* OsiSpxSolverInterface::spxintvars_

private

indices of integer variables

Definition at line 696 of file OsiSpxSolverInterface.hpp.

void* OsiSpxSolverInterface::hotStartCStat_

private

Hotstart information.

Definition at line 699 of file OsiSpxSolverInterface.hpp.

int OsiSpxSolverInterface::hotStartCStatSize_

private

indices of integer variables

Definition at line 700 of file OsiSpxSolverInterface.hpp.

void* OsiSpxSolverInterface::hotStartRStat_

private

indices of integer variables

Definition at line 701 of file OsiSpxSolverInterface.hpp.

int OsiSpxSolverInterface::hotStartRStatSize_

private

indices of integer variables

Definition at line 702 of file OsiSpxSolverInterface.hpp.

int OsiSpxSolverInterface::hotStartMaxIteration_

private

indices of integer variables

Definition at line 703 of file OsiSpxSolverInterface.hpp.

soplex::DVector* OsiSpxSolverInterface::obj_

mutableprivate

Pointer to objective Vector.

Definition at line 708 of file OsiSpxSolverInterface.hpp.

char* OsiSpxSolverInterface::rowsense_

mutableprivate

Pointer to dense vector of row sense indicators.

Definition at line 711 of file OsiSpxSolverInterface.hpp.

double* OsiSpxSolverInterface::rhs_

mutableprivate

Pointer to dense vector of row right-hand side values.

Definition at line 714 of file OsiSpxSolverInterface.hpp.

double* OsiSpxSolverInterface::rowrange_

mutableprivate

Pointer to dense vector of slack upper bounds for range constraints (undefined for non-range rows)

Definition at line 717 of file OsiSpxSolverInterface.hpp.

soplex::DVector* OsiSpxSolverInterface::colsol_

mutableprivate

Pointer to primal solution vector.

Definition at line 720 of file OsiSpxSolverInterface.hpp.

soplex::DVector* OsiSpxSolverInterface::rowsol_

mutableprivate

Pointer to dual solution vector.

Definition at line 723 of file OsiSpxSolverInterface.hpp.

soplex::DVector* OsiSpxSolverInterface::redcost_

mutableprivate

Pointer to reduced cost vector.

Definition at line 726 of file OsiSpxSolverInterface.hpp.

soplex::DVector* OsiSpxSolverInterface::rowact_

mutableprivate

Pointer to row activity (slack) vector.

Definition at line 729 of file OsiSpxSolverInterface.hpp.

CoinPackedMatrix* OsiSpxSolverInterface::matrixByRow_

mutableprivate

Pointer to row-wise copy of problem matrix coefficients.

Definition at line 732 of file OsiSpxSolverInterface.hpp.

CoinPackedMatrix* OsiSpxSolverInterface::matrixByCol_

mutableprivate

Pointer to row-wise copy of problem matrix coefficients.

Definition at line 735 of file OsiSpxSolverInterface.hpp.

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

/home/coin/svn-release/Blis-0.94.3/Osi/src/OsiSpx/OsiSpxSolverInterface.hpp

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