#include <gjacobi.h>

Inheritance diagram for oofem::GJacobi:

Collaboration diagram for oofem::GJacobi:

Public Member Functions
	GJacobi (Domain d, EngngModel m)
virtual	~GJacobi ()
ConvergedReason	solve (FloatMatrix &K, FloatMatrix &M, FloatArray &w, FloatMatrix &x)
const char *	giveClassName () const
std::string	errorInfo (const char *func)
Public Member Functions inherited from oofem::NumericalMethod
	NumericalMethod (Domain d, EngngModel m)
virtual	~NumericalMethod ()
	Destructor.
EngngModel *	giveEngngModel ()
virtual void	initializeFrom (InputRecord &ir)
virtual void	reinitialize ()
virtual void	setDomain (Domain *d)
virtual void	saveContext (DataStream &stream, ContextMode mode)
virtual void	restoreContext (DataStream &stream, ContextMode mode)

Private Attributes
int	nsmax
double	rtol

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

Detailed Description

This class implements the Generalized Jacobi Eigenvalue Problem Solver. Perform solution of eigenvalue problem in the form

\[ K\cdot x = \omega^2 M\cdot x \]

Definition at line 53 of file gjacobi.h.

Constructor & Destructor Documentation

◆ GJacobi()

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

Definition at line 41 of file gjacobi.C.

References nsmax, oofem::NumericalMethod::NumericalMethod(), and rtol.

◆ ~GJacobi()

oofem::GJacobi::~GJacobi ( )

virtual

Definition at line 48 of file gjacobi.C.

Member Function Documentation

◆ errorInfo()

std::string oofem::GJacobi::errorInfo ( const char * func )

inline

Definition at line 74 of file gjacobi.h.

References giveClassName().

◆ giveClassName()

const char * oofem::GJacobi::giveClassName ( ) const

inline

Definition at line 73 of file gjacobi.h.

Referenced by errorInfo().

◆ solve()

ConvergedReason oofem::GJacobi::solve	(	FloatMatrix &	K,
		FloatMatrix &	M,
		FloatArray &	w,
		FloatMatrix &	x )

Solves the given sparse generalized eigenvalue system of equations \( K\cdot x = w^2 M\cdot x \).

Parameters

K	Coefficient matrix.
M	Coefficient matrix.
x	Eigenvector(s).
w	Eigenvalue(s).

Returns: Status.

Definition at line 54 of file gjacobi.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatMatrix::beUnitMatrix(), oofem::CR_CONVERGED, oofem::CR_DIVERGED_ITS, oofem::FloatMatrix::giveNumberOfRows(), GJacobi_ZERO_CHECK_TOL, oofem::FloatMatrix::isSquare(), nsmax, OOFEM_ERROR, OOFEM_LOG_DEBUG, oofem::FloatArray::printYourself(), oofem::FloatMatrix::printYourself(), oofem::FloatArray::resize(), oofem::FloatMatrix::resize(), and rtol.

Referenced by oofem::SubspaceIteration::solve().

Member Data Documentation

◆ nsmax

int oofem::GJacobi::nsmax

private

Definition at line 56 of file gjacobi.h.

Referenced by GJacobi(), and solve().

◆ rtol

double oofem::GJacobi::rtol