MGCoarseGridSVD< number, VectorType > Class Template Reference

#include <deal.II/multigrid/mg_coarse.h>

Inheritance diagram for MGCoarseGridSVD< number, VectorType >:

Public Member Functions
	MGCoarseGridSVD ()=default
void	initialize (const FullMatrix< number > &A, const double threshold=0)
void	operator() (const unsigned int level, VectorType &dst, const VectorType &src) const
void	log () const
Public Member Functions inherited from MGCoarseGridBase< Vector< double > >
virtual	~MGCoarseGridBase () override=default
virtual void	operator() (const unsigned int level, Vector< double > &dst, const Vector< double > &src) const=0
Public Member Functions inherited from Subscriptor
	Subscriptor ()
	Subscriptor (const Subscriptor &)
	Subscriptor (Subscriptor &&) noexcept
virtual	~Subscriptor ()
Subscriptor &	operator= (const Subscriptor &)
Subscriptor &	operator= (Subscriptor &&) noexcept
void	subscribe (std::atomic< bool > *const validity, const std::string &identifier="") const
void	unsubscribe (std::atomic< bool > *const validity, const std::string &identifier="") const
unsigned int	n_subscriptions () const
template<typename StreamType >
void	list_subscribers (StreamType &stream) const
void	list_subscribers () const
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Private Attributes
LAPACKFullMatrix< number >	matrix

Additional Inherited Members
Static Public Member Functions inherited from Subscriptor
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)
static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)

Detailed Description

template<typename number = double, class VectorType = Vector<number>>
class MGCoarseGridSVD< number, VectorType >

Coarse grid solver using singular value decomposition of LAPACK matrices.

Upon initialization, the singular value decomposition of the matrix is computed. then, the operator() uses

Author

Guido Kanschat, 2003, 2012

Definition at line 300 of file mg_coarse.h.

Constructor & Destructor Documentation

MGCoarseGridSVD()

template<typename number = double, class VectorType = Vector<number>>

MGCoarseGridSVD< number, VectorType >::MGCoarseGridSVD ( )

default

Constructor leaving an uninitialized object.

Member Function Documentation

initialize()

template<typename number = double, class VectorType = Vector<number>>

void MGCoarseGridSVD< number, VectorType >::initialize	(	const FullMatrix< number > &	A,
		const double	threshold = 0
	)

Initialize for a new matrix. This resets the dimensions to the

operator()()

template<typename number = double, class VectorType = Vector<number>>

void MGCoarseGridSVD< number, VectorType >::operator()	(	const unsigned int	level,
		VectorType &	dst,
		const VectorType &	src
	)		const

log()

template<typename number = double, class VectorType = Vector<number>>

void MGCoarseGridSVD< number, VectorType >::log

(

)

const

Write the singular values to deallog.

Member Data Documentation

matrix

template<typename number = double, class VectorType = Vector<number>>

LAPACKFullMatrix<number> MGCoarseGridSVD< number, VectorType >::matrix

private

Matrix for singular value decomposition.

Definition at line 329 of file mg_coarse.h.

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

• include/deal.II/multigrid/mg_coarse.h