PreconditionBlockSSOR< MatrixType, inverse_type > Class Template Reference

#include <deal.II/lac/precondition_block.h>

Inheritance diagram for PreconditionBlockSSOR< MatrixType, inverse_type >:

Public Types
using	size_type = types::global_dof_index
using	number = typename MatrixType::value_type

Public Member Functions
	PreconditionBlockSSOR ()
template<typename number2 >
void	vmult (Vector< number2 > &, const Vector< number2 > &) const
template<typename number2 >
void	Tvmult (Vector< number2 > &, const Vector< number2 > &) const
template<typename number2 >
void	step (Vector< number2 > &dst, const Vector< number2 > &rhs) const
template<typename number2 >
void	Tstep (Vector< number2 > &dst, const Vector< number2 > &rhs) const
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)

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)
Private Types inherited from PreconditionBlockSOR< MatrixType, typename MatrixType::value_type >
using	size_type = types::global_dof_index
using	number = typename MatrixType::value_type
Private Member Functions inherited from PreconditionBlockSOR< MatrixType, typename MatrixType::value_type >
	PreconditionBlockSOR ()
void	vmult (Vector< number2 > &, const Vector< number2 > &) const
void	vmult_add (Vector< number2 > &, const Vector< number2 > &) const
void	Tvmult (Vector< number2 > &, const Vector< number2 > &) const
void	Tvmult_add (Vector< number2 > &, const Vector< number2 > &) const
void	step (Vector< number2 > &dst, const Vector< number2 > &rhs) const
void	Tstep (Vector< number2 > &dst, const Vector< number2 > &rhs) const
	PreconditionBlockSOR (bool store)
void	forward (Vector< number2 > &, const Vector< number2 > &, const bool transpose_diagonal, const bool adding) const
void	backward (Vector< number2 > &, const Vector< number2 > &, const bool transpose_diagonal, const bool adding) const

Detailed Description

template<typename MatrixType, typename inverse_type = typename MatrixType::value_type>
class PreconditionBlockSSOR< MatrixType, inverse_type >

Block SSOR preconditioning. This class satisfies the relaxation concept.

The functions vmult and Tvmult execute a block-SSOR step, based on the implementation in PreconditionBlockSOR. This class requires storage of the diagonal blocks and their inverses.

See PreconditionBlock for requirements on the matrix. The blocks used in this class must be contiguous and non-overlapping. An overlapping Schwarz relaxation method can be found in RelaxationBlockSSOR; that class does not offer preconditioning, though.

Note

Instantiations for this template are provided for <float> and <double>; others can be generated in application programs (see the section on Template instantiations in the manual).

Author

Ralf Hartmann, Guido Kanschat, 1999, 2000

Definition at line 824 of file precondition_block.h.

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

• include/deal.II/lac/precondition_block.h
• source/lac/precondition_block_ez.cc