RelaxationBlockJacobi< MatrixType, inverse_type > Class Template Reference

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

Inheritance diagram for RelaxationBlockJacobi< MatrixType, inverse_type >:

Public Types
typedef MatrixType::value_type	number

Public Member Functions
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
std::size_t	memory_consumption () const
Public Member Functions inherited from Subscriptor
	Subscriptor ()
	Subscriptor (const Subscriptor &)
virtual	~Subscriptor ()
Subscriptor &	operator= (const Subscriptor &)
void	subscribe (const char *identifier=0) const
void	unsubscribe (const char *identifier=0) const
unsigned int	n_subscriptions () const
void	list_subscribers () const
	DeclException3 (ExcInUse, int, char *, std::string &,<< "Object of class "<< arg2<< " is still used by "<< arg1<< " other objects."<< "\"<< "(Additional information: "<< arg3<< ")\"<< "See the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "a lot more information on what this error means and "<< "how to fix programs in which it happens.")
	DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier <"<< arg2<< "> subscribes to this object of class "<< arg1<< ". Consequently, it cannot be unsubscribed.")
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Additional Inherited Members
Protected Types inherited from RelaxationBlock< MatrixType, inverse_type >
typedef types::global_dof_index	size_type
Protected Types inherited from PreconditionBlockBase< inverse_type >
enum	Inversion
typedef types::global_dof_index	size_type
Protected Member Functions inherited from RelaxationBlock< MatrixType, inverse_type >
template<typename number2 >
void	do_step (Vector< number2 > &dst, const Vector< number2 > &prev, const Vector< number2 > &src, const bool backward) const
void	initialize (const MatrixType &A, const AdditionalData &parameters)
void	clear ()
bool	empty () const
value_type	el (size_type i, size_type j) const
void	invert_diagblocks ()
Protected Member Functions inherited from PreconditionBlockBase< inverse_type >
	PreconditionBlockBase (bool store_diagonals=false, Inversion method=gauss_jordan)
	~PreconditionBlockBase ()
void	clear ()
void	reinit (unsigned int nblocks, size_type blocksize, bool compress, Inversion method=gauss_jordan)
void	inverses_computed (bool are_they)
void	set_same_diagonal ()
bool	same_diagonal () const
bool	store_diagonals () const
bool	inverses_ready () const
bool	empty () const
unsigned int	size () const
inverse_type	el (size_type i, size_type j) const
void	inverse_vmult (size_type i, Vector< number2 > &dst, const Vector< number2 > &src) const
void	inverse_Tvmult (size_type i, Vector< number2 > &dst, const Vector< number2 > &src) const
FullMatrix< inverse_type > &	inverse (size_type i)
const FullMatrix< inverse_type > &	inverse (size_type i) const
Householder< inverse_type > &	inverse_householder (size_type i)
const Householder< inverse_type > &	inverse_householder (size_type i) const
LAPACKFullMatrix< inverse_type > &	inverse_svd (size_type i)
const LAPACKFullMatrix< inverse_type > &	inverse_svd (size_type i) const
FullMatrix< inverse_type > &	diagonal (size_type i)
const FullMatrix< inverse_type > &	diagonal (size_type i) const
void	log_statistics () const
std::size_t	memory_consumption () const
	DeclException0 (ExcDiagonalsNotStored)
	DeclException0 (ExcInverseNotAvailable)
Protected Attributes inherited from RelaxationBlock< MatrixType, inverse_type >
SmartPointer< const MatrixType, RelaxationBlock< MatrixType, inverse_type > >	A
SmartPointer< const AdditionalData, RelaxationBlock< MatrixType, inverse_type > >	additional_data
Protected Attributes inherited from PreconditionBlockBase< inverse_type >
Inversion	inversion

Detailed Description

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

Block Jacobi (additive Schwarz) method with possibly overlapping blocks.

This class implements the step() and Tstep() functions expected by the relaxation concept. They perform an additive Schwarz method on the blocks provided in the block list of AdditionalData. Differing from PreconditionBlockJacobi, these blocks may be of varying size, non- contiguous, and overlapping. On the other hand, this class does not implement the preconditioner interface expected by Solver objects.

Author

Guido Kanschat

Date

2010

Definition at line 250 of file relaxation_block.h.

Member Typedef Documentation

number

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

typedef MatrixType::value_type RelaxationBlockJacobi< MatrixType, inverse_type >::number

Default constructor. Define number type of matrix.

Definition at line 262 of file relaxation_block.h.

Member Function Documentation

step()

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

template<typename number2 >

void RelaxationBlockJacobi< MatrixType, inverse_type >::step	(	Vector< number2 > &	dst,
		const Vector< number2 > &	rhs
	)		const

Perform one step of the Jacobi iteration.

Tstep()

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

template<typename number2 >

void RelaxationBlockJacobi< MatrixType, inverse_type >::Tstep	(	Vector< number2 > &	dst,
		const Vector< number2 > &	rhs
	)		const

Perform one step of the Jacobi iteration.

memory_consumption()

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

std::size_t RelaxationBlockJacobi< MatrixType, inverse_type >::memory_consumption

(

)

const

Return the memory allocated in this object.

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

• deal.II/lac/relaxation_block.h