PreconditionBlock< MatrixType, inverse_type >::AdditionalData Class Reference

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

Public Member Functions
	AdditionalData (const size_type block_size, const double relaxation=1., const bool invert_diagonal=true, const bool same_diagonal=false)

Public Attributes
double	relaxation
size_type	block_size
bool	invert_diagonal
bool	same_diagonal
PreconditionBlockBase< inverse_type >::Inversion	inversion
double	threshold

Detailed Description

template<typename MatrixType, typename inverse_type = typename MatrixType::value_type>
class PreconditionBlock< MatrixType, inverse_type >::AdditionalData

Parameters for block preconditioners.

Definition at line 105 of file precondition_block.h.

Constructor & Destructor Documentation

AdditionalData()

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

PreconditionBlock< MatrixType, inverse_type >::AdditionalData::AdditionalData	(	const size_type	block_size,
		const double	relaxation = 1.,
		const bool	invert_diagonal = true,
		const bool	same_diagonal = false )

Constructor. Block size must be given since there is no reasonable default parameter.

Member Data Documentation

relaxation

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

double PreconditionBlock< MatrixType, inverse_type >::AdditionalData::relaxation

Relaxation parameter.

Definition at line 120 of file precondition_block.h.

block_size

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

size_type PreconditionBlock< MatrixType, inverse_type >::AdditionalData::block_size

Block size.

Definition at line 125 of file precondition_block.h.

invert_diagonal

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

bool PreconditionBlock< MatrixType, inverse_type >::AdditionalData::invert_diagonal

Invert diagonal during initialization.

Definition at line 130 of file precondition_block.h.

same_diagonal

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

bool PreconditionBlock< MatrixType, inverse_type >::AdditionalData::same_diagonal

Assume all diagonal blocks are equal to save memory.

Definition at line 135 of file precondition_block.h.

inversion

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

PreconditionBlockBase<inverse_type>::Inversion PreconditionBlock< MatrixType, inverse_type >::AdditionalData::inversion

Choose the inversion method for the blocks.

Definition at line 139 of file precondition_block.h.

threshold

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

double PreconditionBlock< MatrixType, inverse_type >::AdditionalData::threshold

The if inversion is SVD, the threshold below which a singular value will be considered zero and thus not inverted. This parameter is used in the call to LAPACKFullMatrix::compute_inverse_svd().

Definition at line 146 of file precondition_block.h.

---

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

• include/deal.II/lac/precondition_block.h