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

Private Attributes
LAPACKFullMatrix< number >	matrix

Subscriptor functionality
Classes derived from Subscriptor provide a facility to subscribe to this object. This is mostly used by the SmartPointer class.
std::atomic< unsigned int >	counter
std::map< std::string, unsigned int >	counter_map
std::vector< std::atomic< bool > * >	validity_pointers
const std::type_info *	object_info
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)
using	map_value_type = decltype(counter_map)::value_type
using	map_iterator = decltype(counter_map)::iterator
static std::mutex	mutex
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)
static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)
void	check_no_subscribers () const noexcept

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

Definition at line 208 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

virtual

Solution operator.

Implements MGCoarseGridBase< VectorType >.

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 237 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