CsdpSolver Class Reference

The CsdpSolver class solves problems using Csdp. More...

#include <OSCsdpSolver.h>

Inheritance diagram for CsdpSolver:

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Collaboration diagram for CsdpSolver:

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List of all members.

Public Member Functions
	CsdpSolver ()
	the CsdpSolver class constructor
virtual	~CsdpSolver ()
	the CsdpSolver class destructor
virtual void	solve () throw (ErrorClass)
	solve results in an instance being read into the Csdp data structures and optimized
virtual void	buildSolverInstance () throw (ErrorClass)
	The implementation of the virtual functions.
virtual void	setSolverOptions () throw (ErrorClass)
	The implementation of the virtual functions.
void	dataEchoCheck ()
	use this for debugging, print out the instance that the solver thinks it has and compare this with the OSiL file
Public Attributes
OSiLReader *	m_osilreader
	m_osilreader is an OSiLReader object used to create an osinstance from an osil string if needed
OSoLReader *	m_osolreader
	m_osolreader is an OSoLReader object used to create an osoption from an osol string if needed
Private Attributes
int	nC_rows
int	nC_blks
int	ncon
struct blockmatrix	C_matrix
double *	rhsValues
struct constraintmatrix *	mconstraints
struct blockmatrix X	Z
double *	y
double	pobj
double	dobj
OSrLWriter *	osrlwriter
std::string *	csdpErrorMsg

Detailed Description

The CsdpSolver class solves problems using Csdp.

Author:: Jun Ma, Kipp Martin, Horand Gassmann

Version:: 1.0, 05/26/2014

Since:: OS 2.8

Remarks:: this class takes an OSiL instance and optimizes it using the COIN-OR Csdp solver

Definition at line 72 of file OSCsdpSolver.h.

Constructor & Destructor Documentation

CsdpSolver::CsdpSolver ( )

the CsdpSolver class constructor

Definition at line 51 of file OSCsdpSolver.cpp.

CsdpSolver::~CsdpSolver ( ) [virtual]

the CsdpSolver class destructor

Definition at line 64 of file OSCsdpSolver.cpp.

Member Function Documentation

void CsdpSolver::solve ( ) throw (ErrorClass) [virtual]

solve results in an instance being read into the Csdp data structures and optimized

Implements DefaultSolver.

Definition at line 717 of file OSCsdpSolver.cpp.

void CsdpSolver::buildSolverInstance ( ) throw (ErrorClass) [virtual]

The implementation of the virtual functions.

Returns:: void.

If we're using unsigned shorts, make sure that the problem isn't too big.

Allocate space for the C matrix (A0).

Handle diagonal blocks and matrix blocks separately.

Allocate space for the constraints (again using 1-based indexing).

Null out all pointers in constraints.

Go through all of the blocks in each of the constraint matrices, and allocate space for the entries and indices.

initialize and allocate storage for the entries in this block of this constraint.

Implements DefaultSolver.

Definition at line 85 of file OSCsdpSolver.cpp.

void CsdpSolver::setSolverOptions ( ) throw (ErrorClass) [virtual]

The implementation of the virtual functions.

Returns:: void.

Since CSDP provides no user interface for solver options other than reading them in from the file param.csdp (if this file exists) the only choice is to write the options to file so that they can be read back by the CSDP method initparams(), called from easy_sdp().

Note also that initial values are not treated here; there is the special method setInitialValues() that should be used for that purpose.

Implements DefaultSolver.

Definition at line 521 of file OSCsdpSolver.cpp.

void CsdpSolver::dataEchoCheck ( )

use this for debugging, print out the instance that the solver thinks it has and compare this with the OSiL file

Definition at line 1080 of file OSCsdpSolver.cpp.