oofem::IMLSolver Class Reference

Implements the solution of linear system of equation in the form using iterative solvers from IML++ library. More...

#include <imlsolver.h>

Inheritance diagram for oofem::IMLSolver:

Collaboration diagram for oofem::IMLSolver:

Public Member Functions
	IMLSolver (Domain *d, EngngModel *m)
	Constructor. Creates new instance of LDLTFactorization, with number i, belonging to domain d and Engngmodel m. More...
virtual	~IMLSolver ()
	Destructor. More...
virtual NM_Status	solve (SparseMtrx &A, FloatArray &b, FloatArray &x)
	Solves the given linear system iteratively by method described by IMLSolverType. More...
virtual IRResultType	initializeFrom (InputRecord *ir)
virtual const char *	giveClassName () const
virtual LinSystSolverType	giveLinSystSolverType () const
virtual SparseMtrxType	giveRecommendedMatrix (bool symmetric) const
	Returns the recommended sparse matrix type for this solver. More...
Public Member Functions inherited from oofem::SparseLinearSystemNM
	SparseLinearSystemNM (Domain *d, EngngModel *m)
	Constructor. More...
virtual	~SparseLinearSystemNM ()
	Destructor. More...
std::string	errorInfo (const char *func)
virtual NM_Status	solve (SparseMtrx &A, FloatMatrix &B, FloatMatrix &X)
	Solves the given sparse linear system of equations . More...
Public Member Functions inherited from oofem::NumericalMethod
	NumericalMethod (Domain *d, EngngModel *m)
	Constructor. More...
virtual	~NumericalMethod ()
	Destructor. More...
EngngModel *	giveEngngModel ()
virtual void	reinitialize ()
	Reinitializes the receiver. More...
virtual void	setDomain (Domain *d)
virtual contextIOResultType	saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
virtual contextIOResultType	restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)

Private Types
enum	IMLSolverType { IML_ST_CG, IML_ST_GMRES }
	Solver type. More...
enum	IMLPrecondType {   IML_VoidPrec, IML_DiagPrec, IML_ILU_CompColPrec, IML_ILU_CompRowPrec,   IML_ICPrec }
	Preconditioner type. More...

Private Attributes
SparseMtrx *	Lhs
	Last mapped Lhs matrix. More...
SparseMtrx::SparseMtrxVersionType	lhsVersion
	Last mapped matrix version. More...
Preconditioner *	M
	Preconditioner. More...
IMLSolverType	solverType
	IML Solver type. More...
IMLPrecondType	precondType
	IML Preconditioner type. More...
bool	precondInit
	Precond. init flag. More...
double	tol
	Tolerance of residual. More...
int	maxite
	Max number of iterations. More...

Additional Inherited Members
Protected Attributes inherited from oofem::NumericalMethod
Domain *	domain
	Pointer to domain. More...
EngngModel *	engngModel
	Pointer to engineering model. More...

Detailed Description

Implements the solution of linear system of equation in the form using iterative solvers from IML++ library.

Can work with any sparse matrix implementation.

Definition at line 61 of file imlsolver.h.

Member Enumeration Documentation

enum oofem::IMLSolver::IMLPrecondType

private

Preconditioner type.

Enumerator
IML_VoidPrec
IML_DiagPrec
IML_ILU_CompColPrec
IML_ILU_CompRowPrec
IML_ICPrec

Definition at line 67 of file imlsolver.h.

enum oofem::IMLSolver::IMLSolverType

private

Solver type.

Enumerator
IML_ST_CG
IML_ST_GMRES

Definition at line 65 of file imlsolver.h.

Constructor & Destructor Documentation

oofem::IMLSolver::IMLSolver	(	Domain *	d,
		EngngModel *	m
	)

Constructor. Creates new instance of LDLTFactorization, with number i, belonging to domain d and Engngmodel m.

oofem::IMLSolver::~IMLSolver ( )

virtual

Destructor.

Definition at line 68 of file imlsolver.C.

References M.

Member Function Documentation

virtual const char* oofem::IMLSolver::giveClassName ( ) const

inlinevirtual

Implements oofem::SparseLinearSystemNM.

Definition at line 106 of file imlsolver.h.

virtual LinSystSolverType oofem::IMLSolver::giveLinSystSolverType ( ) const

inlinevirtual

Returns

LinSystSolverType value, corresponding to receiver.

Implements oofem::SparseLinearSystemNM.

Definition at line 107 of file imlsolver.h.

References oofem::ST_IML.

virtual SparseMtrxType oofem::IMLSolver::giveRecommendedMatrix ( bool  symmetric ) const

inlinevirtual

Returns the recommended sparse matrix type for this solver.

Implements oofem::SparseLinearSystemNM.

Definition at line 108 of file imlsolver.h.

References oofem::SMT_CompCol, and oofem::SMT_SymCompCol.

IRResultType oofem::IMLSolver::initializeFrom ( InputRecord *  ir )

virtual

Reimplemented from oofem::NumericalMethod.

Definition at line 74 of file imlsolver.C.

References _IFT_IMLSolver_lsiter, _IFT_IMLSolver_lsprecond, _IFT_IMLSolver_lstol, _IFT_IMLSolver_stype, IML_DiagPrec, IML_ICPrec, IML_ILU_CompColPrec, IML_ILU_CompRowPrec, IML_VoidPrec, oofem::Preconditioner::initializeFrom(), IR_GIVE_OPTIONAL_FIELD, oofem::IRRT_BAD_FORMAT, M, maxite, OOFEM_WARNING, precondType, solverType, and tol.

NM_Status oofem::IMLSolver::solve ( SparseMtrx &  A, FloatArray &  b, FloatArray &  x  )

virtual

Solves the given linear system iteratively by method described by IMLSolverType.

Parameters

A	Coefficient matrix.
b	Right hand side.
x	Solution array.

Returns

Status value.

Implements oofem::SparseLinearSystemNM.

Definition at line 114 of file imlsolver.C.

References oofem::Timer::getUtime(), oofem::Preconditioner::giveClassName(), oofem::FloatArray::giveSize(), oofem::SparseMtrx::giveVersion(), IML_ST_CG, IML_ST_GMRES, oofem::Preconditioner::init(), Lhs, lhsVersion, M, maxite, NM_Success, OOFEM_ERROR, OOFEM_LOG_INFO, precondInit, solverType, oofem::Timer::startTimer(), oofem::Timer::stopTimer(), and tol.

Member Data Documentation

SparseMtrx* oofem::IMLSolver::Lhs

private

Last mapped Lhs matrix.

Definition at line 70 of file imlsolver.h.

Referenced by solve().

SparseMtrx :: SparseMtrxVersionType oofem::IMLSolver::lhsVersion

private

Last mapped matrix version.

Definition at line 72 of file imlsolver.h.

Referenced by solve().

Preconditioner* oofem::IMLSolver::M

private

Preconditioner.

Definition at line 74 of file imlsolver.h.

Referenced by initializeFrom(), solve(), and ~IMLSolver().

int oofem::IMLSolver::maxite

private

Max number of iterations.

Definition at line 87 of file imlsolver.h.

Referenced by initializeFrom(), and solve().

bool oofem::IMLSolver::precondInit

private

Precond. init flag.

Definition at line 80 of file imlsolver.h.

Referenced by solve().

IMLPrecondType oofem::IMLSolver::precondType

private

IML Preconditioner type.

Definition at line 78 of file imlsolver.h.

Referenced by initializeFrom().

IMLSolverType oofem::IMLSolver::solverType

private

IML Solver type.

Definition at line 76 of file imlsolver.h.

Referenced by initializeFrom(), and solve().

double oofem::IMLSolver::tol

private

Tolerance of residual.

Definition at line 85 of file imlsolver.h.

Referenced by initializeFrom(), and solve().

---

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

• imlsolver.h
• imlsolver.C