Class to solve problems through Osi with Xpress. More...

#include <OsiXpress.h>

Inheritance diagram for OsiXpress:

Collaboration diagram for OsiXpress:

Public Member Functions
	OsiXpress ()

	~OsiXpress ()
	Destructor.

STATUS	solve ()
	Solve the problem loaded with Xpress.

void	readMps (const char *filename)
	Load a problem from a mps file.

const string *	getVarNames ()
	Get the name of variables.

const double *	getSolution ()
	Get the solution.

Public Member Functions inherited from OsiSolver
	OsiSolver ()
	Constructor.

	~OsiSolver ()
	Destructor.

void	setMaxTime (double time)
	Set maximum time allowed to solve the problem.

double	getMaxTime ()
	Get maximum time allowed to solve the problem.

void	setNumThreads (int numThreads)
	Set the maximum number of threads that the solver can use to solve the problem.

int	getNumThreads ()
	Get the maximum number of threads that the solver can use to solve the problem.

void	setFirstFeasible (bool stopAtFirstFeasible)
	Set if the execution must be stopped at first feasible solution.

bool	getFirstFeasible ()
	Get if the execution must be stopped at first feasible solution.

void	setLogFileName (char *filename)
	Set the name of the log file.

const char *	getLogFileName ()
	Get the name of the log file.

OsiSolverInterface *	getSolverInterface ()
	Get solver interface.

void	loadProblem (int numRows, int numColumns, int nz, double obj[], double qobj[], double lb[], double ub[], double lhs[], double rhs[], int begRows[], int indCols[], double values[], bool copy_vectors=true)
	Load a problem.

double	getObjValue ()
	Get the objective function value.

int	getNumVars ()
	Get the number of variables.

Private Member Functions
void	showXprsErrormsg (const char *sSubName, int nLineNo, int nErrCode)
	Display error information about Xpress errors.

void	loadQuadraticObj (double qobj[])
	Load the quadratic objective function cost.

Additional Inherited Members
Protected Member Functions inherited from OsiSolver
void	freeMemory ()
	Free all allocated memory.

Protected Attributes inherited from OsiSolver
double	maxTime
	Maximum time allowed to solve the problem.

bool	stopAtFirstFeasible
	True if the execution must be stopped at first feasible solution.

bool	solved
	True if at least a initial solve has been done.

int	numThreads
	Number of threads to use.

OsiSolverInterface *	si
	Osi environment.

CoinMessageHandler *	cmh
	To redirect the output.

FILE *	f
	Output file.

char *	filename
	Name of file.

double	fobj
	Objective function value.

Detailed Description

Class to solve problems through Osi with Xpress.

Constructor & Destructor Documentation

OsiXpress::OsiXpress ( )

Exceptions

LICENSE_ERROR If there are problems opening XPRESS (licensing problems)

const double * OsiXpress::getSolution ( )

virtual

Get the solution.

Reimplemented from OsiSolver.

const string * OsiXpress::getVarNames ( )

virtual

Get the name of variables.

Reimplemented from OsiSolver.

void OsiXpress::loadQuadraticObj ( double qobj[] )

privatevirtual

Load the quadratic objective function cost.

Parameters

qobj	Quadratic coefficients of the separable quadratic objective

Reimplemented from OsiSolver.

void OsiXpress::showXprsErrormsg	(	const char *	sSubName,
		int	nLineNo,
		int	nErrCode
	)

private

Display error information about Xpress errors.

Parameters

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