#include <deal.II/matrix_free/operators.h>

Inheritance diagram for MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >:

[legend]

Public Types
using	value_type = typename Base< dim, VectorType, VectorizedArrayType >::value_type

using	size_type = typename Base< dim, VectorType, VectorizedArrayType >::size_type

Public Member Functions
	MassOperator ()

virtual void	compute_diagonal () override

void	compute_lumped_diagonal ()

const std::shared_ptr< DiagonalMatrix< VectorType > > &	get_matrix_lumped_diagonal () const

const std::shared_ptr< DiagonalMatrix< VectorType > > &	get_matrix_lumped_diagonal_inverse () const

virtual void	clear ()

void	initialize (std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > > data, const std::vector< unsigned int > &selected_row_blocks=std::vector< unsigned int >(), const std::vector< unsigned int > &selected_column_blocks=std::vector< unsigned int >())

void	initialize (std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > > data, const MGConstrainedDoFs &mg_constrained_dofs, const unsigned int level, const std::vector< unsigned int > &selected_row_blocks=std::vector< unsigned int >())

void	initialize (std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > > data_, const std::vector< MGConstrainedDoFs > &mg_constrained_dofs, const unsigned int level, const std::vector< unsigned int > &selected_row_blocks=std::vector< unsigned int >())

size_type	m () const

size_type	n () const

void	vmult_interface_down (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	vmult_interface_up (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	vmult (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	Tvmult (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	vmult_add (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	Tvmult_add (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

value_type	el (const unsigned int row, const unsigned int col) const

virtual std::size_t	memory_consumption () const

void	initialize_dof_vector (LinearAlgebra::distributed::Vector< double > &vec) const

std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > >	get_matrix_free () const

const std::shared_ptr< DiagonalMatrix< LinearAlgebra::distributed::Vector< double > > > &	get_matrix_diagonal_inverse () const

const std::shared_ptr< DiagonalMatrix< LinearAlgebra::distributed::Vector< double > > > &	get_matrix_diagonal () const

void	precondition_Jacobi (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src, const value_type omega) const

Protected Member Functions
void	preprocess_constraints (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	postprocess_constraints (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

void	set_constrained_entries_to_one (LinearAlgebra::distributed::Vector< double > &dst) const

virtual void	apply_add (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const=0

virtual void	Tapply_add (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src) const

Protected Attributes
std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > >	data

std::shared_ptr< DiagonalMatrix< LinearAlgebra::distributed::Vector< double > > >	diagonal_entries

std::shared_ptr< DiagonalMatrix< LinearAlgebra::distributed::Vector< double > > >	inverse_diagonal_entries

std::vector< unsigned int >	selected_rows

std::vector< unsigned int >	selected_columns

Private Member Functions
virtual void	apply_add (VectorType &dst, const VectorType &src) const override

void	local_apply_cell (const MatrixFree< dim, value_type, VectorizedArrayType > &data, VectorType &dst, const VectorType &src, const std::pair< unsigned int, unsigned int > &cell_range) const

void	mult_add (LinearAlgebra::distributed::Vector< double > &dst, const LinearAlgebra::distributed::Vector< double > &src, const bool transpose) const

void	adjust_ghost_range_if_necessary (const LinearAlgebra::distributed::Vector< double > &vec, const bool is_row) const

Private Attributes
std::shared_ptr< DiagonalMatrix< VectorType > >	lumped_diagonal_entries

std::shared_ptr< DiagonalMatrix< VectorType > >	inverse_lumped_diagonal_entries

std::vector< std::vector< unsigned int > >	edge_constrained_indices

std::vector< std::vector< std::pair< value_type, value_type > > >	edge_constrained_values

bool	have_interface_matrices

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)

void	check_no_subscribers () const noexcept

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)

Detailed Description

template<int dim, int fe_degree, int n_q_points_1d = fe_degree + 1, int n_components = 1, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>
class MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >

This class implements the operation of the action of a mass matrix.

Note that this class only supports the non-blocked vector variant of the Base operator because only a single FEEvaluation object is used in the apply function.

Definition at line 744 of file operators.h.

Member Typedef Documentation

◆ value_type

template<int dim, int fe_degree, int n_q_points_1d = fe_degree + 1, int n_components = 1, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

using MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::value_type = typename Base<dim, VectorType, VectorizedArrayType>::value_type

Number alias.

Definition at line 750 of file operators.h.

◆ size_type

template<int dim, int fe_degree, int n_q_points_1d = fe_degree + 1, int n_components = 1, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

using MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::size_type = typename Base<dim, VectorType, VectorizedArrayType>::size_type

size_type needed for preconditioner classes.

Definition at line 756 of file operators.h.

Constructor & Destructor Documentation

◆ MassOperator()

template<int dim, int fe_degree, int n_q_points_1d, int n_components, typename VectorType , typename VectorizedArrayType >

MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::MassOperator

Constructor.

Definition at line 1832 of file operators.h.

Member Function Documentation

◆ compute_diagonal()

template<int dim, int fe_degree, int n_q_points_1d, int n_components, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::compute_diagonal

overridevirtual

Same as the base class.

Implements MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double >, VectorizedArray< typename VectorType::value_type > >.

Definition at line 1850 of file operators.h.

◆ compute_lumped_diagonal()

template<int dim, int fe_degree, int n_q_points_1d, int n_components, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::compute_lumped_diagonal

Compute the lumped mass matrix. This is equal to the mass matrix times a vector of all ones and is equivalent to approximating the mass matrix with a nodal quadrature rule.

The lumped mass matrix is an excellent preconditioner for mass matrices corresponding to FE_Q elements on axis-aligned cells. However, some elements (like FE_SimplexP with degrees higher than 1) have basis functions whose integrals are zero or negative (and therefore their lumped mass matrix entries are zero or negative). For such elements a lumped mass matrix is a very poor approximation of the operator - the diagonal should be used instead. If you are interested in using mass lumping with simplices then use FE_SimplexP_Bubbles instead of FE_SimplexP.

Definition at line 1929 of file operators.h.

◆ get_matrix_lumped_diagonal()

template<int dim, int fe_degree, int n_q_points_1d, int n_components, typename VectorType , typename VectorizedArrayType >

const std::shared_ptr< DiagonalMatrix< VectorType > > & MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::get_matrix_lumped_diagonal

Get read access to the lumped diagonal of this operator.

Definition at line 2008 of file operators.h.

◆ get_matrix_lumped_diagonal_inverse()

template<int dim, int fe_degree, int n_q_points_1d, int n_components, typename VectorType , typename VectorizedArrayType >

const std::shared_ptr< DiagonalMatrix< VectorType > > & MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::get_matrix_lumped_diagonal_inverse

Get read access to the inverse lumped diagonal of this operator.

Definition at line 1986 of file operators.h.

◆ apply_add() [1/2]

template<int dim, int fe_degree, int n_q_points_1d, int n_components, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::apply_add	(	VectorType &	dst,
		const VectorType &	src
	)		const

overrideprivatevirtual

Applies the mass matrix operation on an input vector. It is assumed that the passed input and output vector are correctly initialized using initialize_dof_vector().

Definition at line 2030 of file operators.h.

◆ local_apply_cell()

template<int dim, int fe_degree, int n_q_points_1d = fe_degree + 1, int n_components = 1, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

void MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::local_apply_cell	(	const MatrixFree< dim, value_type, VectorizedArrayType > &	data,
		VectorType &	dst,
		const VectorType &	src,
		const std::pair< unsigned int, unsigned int > &	cell_range
	)		const

private

For this operator, there is just a cell contribution.

Definition at line 2051 of file operators.h.

◆ clear()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::clear

virtualinherited

Release all memory and return to a state just like after having called the default constructor.

Reimplemented in MatrixFreeOperators::LaplaceOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >.

Definition at line 218 of file operators.h.

◆ initialize() [1/3]

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::initialize	(	std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > >	data,
		const std::vector< unsigned int > &	selected_row_blocks = `std::vector<unsigned int>()`,
		const std::vector< unsigned int > &	selected_column_blocks = `std::vector<unsigned int>()`
	)

inherited

Initialize operator on fine scale.

The optional selection vector allows to choose only some components from the underlying MatrixFree object, e.g. just a single one. The entry selected_row_blocks[i] in the vector chooses the DoFHandler and AffineConstraints object that was given as the selected_row_blocks[i]-th argument to the MatrixFree::reinit() call. Different arguments for rows and columns also make it possible to select non-diagonal blocks or rectangular blocks. If the row vector is empty, all components are selected, otherwise its size must be smaller or equal to MatrixFree::n_components() and all indices need to be unique and within the range of 0 and MatrixFree::n_components(). If the column selection vector is empty, it is taken the same as the row selection, defining a diagonal block.

Definition at line 237 of file operators.h.

◆ initialize() [2/3]

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::initialize	(	std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > >	data,
		const MGConstrainedDoFs &	mg_constrained_dofs,
		const unsigned int	level,
		const std::vector< unsigned int > &	selected_row_blocks = `std::vector<unsigned int>()`
	)

inherited

Initialize operator on a level level for a single FiniteElement.

The optional selection vector allows to choose only some components from the underlying MatrixFree object, e.g. just a single one. The entry selected_row_blocks[i] in the vector chooses the DoFHandler and AffineConstraints object that was given as the selected_row_blocks[i]-th argument to the MatrixFree::reinit() call. Since a multigrid operator is always associated to inverting a matrix and thus represents a diagonal block, the same vector for rows and columns is used as opposed to the non-level initialization function. If empty, all components are selected.

Definition at line 258 of file operators.h.

◆ initialize() [3/3]

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::initialize	(	std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArray< typename VectorType::value_type > > >	data_,
		const std::vector< MGConstrainedDoFs > &	mg_constrained_dofs,
		const unsigned int	level,
		const std::vector< unsigned int > &	selected_row_blocks = `std::vector<unsigned int>()`
	)

inherited

Initialize operator on a level level for multiple FiniteElement objects.

The optional selection vector allows to choose only some components from the underlying MatrixFree object, e.g. just a single one. The entry selected_row_blocks[i] in the vector chooses the DoFHandler and AffineConstraints object that was given as the selected_row_blocks[i]-th argument to the MatrixFree::reinit() call. Since a multigrid operator is always associated to inverting a matrix and thus represents a diagonal block, the same vector for rows and columns is used as opposed to the non-level initialization function. If empty, all components are selected.

Definition at line 280 of file operators.h.

◆ m()

Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::size_type MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::m

inherited

Return the dimension of the codomain (or range) space.

Definition at line 291 of file operators.h.

◆ n()

Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::size_type MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::n

inherited

Return the dimension of the domain space.

Definition at line 297 of file operators.h.

◆ vmult_interface_down()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::vmult_interface_down	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

inherited

vmult operator for interface.

Definition at line 303 of file operators.h.

◆ vmult_interface_up()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::vmult_interface_up	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

inherited

vmult operator for interface.

Definition at line 309 of file operators.h.

◆ vmult()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::vmult	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

inherited

Matrix-vector multiplication.

Definition at line 315 of file operators.h.

◆ Tvmult()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::Tvmult	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

inherited

Transpose matrix-vector multiplication.

Definition at line 321 of file operators.h.

◆ vmult_add()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::vmult_add	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

inherited

Adding Matrix-vector multiplication.

Definition at line 327 of file operators.h.

◆ Tvmult_add()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::Tvmult_add	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

inherited

Adding transpose matrix-vector multiplication.

Definition at line 333 of file operators.h.

◆ el()

Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::value_type MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::el	(	const unsigned int	row,
		const unsigned int	col
	)		const

inherited

Return the value of the matrix entry (row,col). In matrix-free context this function is valid only for row==col when diagonal is initialized.

Definition at line 340 of file operators.h.

◆ memory_consumption()

std::size_t MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::memory_consumption

virtualinherited

Determine an estimate for the memory consumption (in bytes) of this object.

Definition at line 347 of file operators.h.

◆ initialize_dof_vector()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::initialize_dof_vector ( LinearAlgebra::distributed::Vector< double > & vec ) const

inherited

A wrapper for initialize_dof_vector() of MatrixFree object.

Definition at line 353 of file operators.h.

◆ get_matrix_free()

std::shared_ptr< const MatrixFree< dim, typename Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::value_type, VectorizedArray< typename VectorType::value_type > > > MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::get_matrix_free

inherited

Get read access to the MatrixFree object stored with this operator.

Definition at line 374 of file operators.h.

◆ get_matrix_diagonal_inverse()

const std::shared_ptr< DiagonalMatrix< LinearAlgebra::distributed::Vector< double > > > & MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::get_matrix_diagonal_inverse

inherited

Get read access to the inverse diagonal of this operator.

Definition at line 380 of file operators.h.

◆ get_matrix_diagonal()

const std::shared_ptr< DiagonalMatrix< LinearAlgebra::distributed::Vector< double > > > & MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::get_matrix_diagonal

inherited

Get read access to the diagonal of this operator.

Definition at line 386 of file operators.h.

◆ precondition_Jacobi()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::precondition_Jacobi	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src,
		const value_type	omega
	)		const

inherited

Apply the Jacobi preconditioner, which multiplies every element of the src vector by the inverse of the respective diagonal element and multiplies the result with the relaxation factor omega.

Definition at line 394 of file operators.h.

◆ preprocess_constraints()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::preprocess_constraints	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

protectedinherited

Perform necessary operations related to constraints before calling apply_add() or Tapply_add() inside mult_add().

Definition at line 404 of file operators.h.

◆ postprocess_constraints()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::postprocess_constraints	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

protectedinherited

Perform necessary operations related to constraints after calling apply_add() or Tapply_add() inside mult_add().

Definition at line 411 of file operators.h.

◆ set_constrained_entries_to_one()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::set_constrained_entries_to_one ( LinearAlgebra::distributed::Vector< double > & dst ) const

protectedinherited

Set constrained entries (both from hanging nodes and edge constraints) of dst to one.

Definition at line 418 of file operators.h.

◆ apply_add() [2/2]

virtual void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::apply_add	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

protectedpure virtualinherited

Apply operator to src and add result in dst.

◆ Tapply_add()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::Tapply_add	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src
	)		const

protectedvirtualinherited

Apply transpose operator to src and add result in dst.

Default implementation is to call apply_add().

Definition at line 432 of file operators.h.

◆ mult_add()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::mult_add	(	LinearAlgebra::distributed::Vector< double > &	dst,
		const LinearAlgebra::distributed::Vector< double > &	src,
		const bool	transpose
	)		const

privateinherited

Function which implements vmult_add (transpose = false) and Tvmult_add (transpose = true).

Definition at line 487 of file operators.h.

◆ adjust_ghost_range_if_necessary()

void MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::adjust_ghost_range_if_necessary	(	const LinearAlgebra::distributed::Vector< double > &	vec,
		const bool	is_row
	)		const

privateinherited

Adjust the ghost range of the vectors to the storage requirements of the underlying MatrixFree class. This is used inside the mult_add() as well as vmult_interface_up() and vmult_interface_down() methods in order to ensure that the cell loops will be able to access the ghost indices with the correct local indices.

Definition at line 499 of file operators.h.

Member Data Documentation

◆ lumped_diagonal_entries

template<int dim, int fe_degree, int n_q_points_1d = fe_degree + 1, int n_components = 1, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::shared_ptr<DiagonalMatrix<VectorType> > MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::lumped_diagonal_entries

private

A shared pointer to a diagonal matrix that stores the lumped diagonal elements as a vector.

Definition at line 823 of file operators.h.

◆ inverse_lumped_diagonal_entries

template<int dim, int fe_degree, int n_q_points_1d = fe_degree + 1, int n_components = 1, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::shared_ptr<DiagonalMatrix<VectorType> > MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType, VectorizedArrayType >::inverse_lumped_diagonal_entries

private

A shared pointer to a diagonal matrix that stores the inverse of lumped diagonal elements as a vector.

Definition at line 829 of file operators.h.

◆ data

std::shared_ptr<const MatrixFree<dim, value_type, VectorizedArray< typename VectorType::value_type > > > MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::data

protectedinherited

MatrixFree object to be used with this operator.

Definition at line 438 of file operators.h.

◆ diagonal_entries

std::shared_ptr<DiagonalMatrix<LinearAlgebra::distributed::Vector< double > > > MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::diagonal_entries

protectedinherited

A shared pointer to a diagonal matrix that stores the diagonal elements as a vector.

Definition at line 444 of file operators.h.

◆ inverse_diagonal_entries

std::shared_ptr<DiagonalMatrix<LinearAlgebra::distributed::Vector< double > > > MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::inverse_diagonal_entries

protectedinherited

A shared pointer to a diagonal matrix that stores the inverse of diagonal elements as a vector.

Definition at line 450 of file operators.h.

◆ selected_rows

std::vector<unsigned int> MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::selected_rows

protectedinherited

A vector which defines the selection of sub-components of MatrixFree for the rows of the matrix representation.

Definition at line 456 of file operators.h.

◆ selected_columns

std::vector<unsigned int> MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::selected_columns

protectedinherited

A vector which defines the selection of sub-components of MatrixFree for the columns of the matrix representation.

Definition at line 462 of file operators.h.

◆ edge_constrained_indices

std::vector<std::vector<unsigned int> > MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::edge_constrained_indices

privateinherited

Indices of DoFs on edge in case the operator is used in GMG context.

Definition at line 468 of file operators.h.

◆ edge_constrained_values

std::vector<std::vector<std::pair<value_type, value_type> > > MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::edge_constrained_values

mutableprivateinherited

Auxiliary vector.

Definition at line 474 of file operators.h.

◆ have_interface_matrices

bool MatrixFreeOperators::Base< dim, LinearAlgebra::distributed::Vector< double > , VectorizedArray< typename VectorType::value_type > >::have_interface_matrices

privateinherited

A flag which determines whether or not this operator has interface matrices in GMG context.

Definition at line 480 of file operators.h.

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

include/deal.II/matrix_free/operators.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Subscriptor functionality

Detailed Description

Member Typedef Documentation

◆ value_type

◆ size_type

Constructor & Destructor Documentation

◆ MassOperator()

Member Function Documentation

◆ compute_diagonal()

◆ compute_lumped_diagonal()

◆ get_matrix_lumped_diagonal()

◆ get_matrix_lumped_diagonal_inverse()

◆ apply_add() [1/2]

◆ local_apply_cell()

◆ clear()

◆ initialize() [1/3]

◆ initialize() [2/3]

◆ initialize() [3/3]

◆ m()

◆ n()

◆ vmult_interface_down()

◆ vmult_interface_up()

◆ vmult()

◆ Tvmult()

◆ vmult_add()

◆ Tvmult_add()

◆ el()

◆ memory_consumption()

◆ initialize_dof_vector()

◆ get_matrix_free()

◆ get_matrix_diagonal_inverse()

◆ get_matrix_diagonal()

◆ precondition_Jacobi()

◆ preprocess_constraints()

◆ postprocess_constraints()

◆ set_constrained_entries_to_one()

◆ apply_add() [2/2]

◆ Tapply_add()

◆ mult_add()

◆ adjust_ghost_range_if_necessary()

Member Data Documentation

◆ lumped_diagonal_entries

◆ inverse_lumped_diagonal_entries

◆ data

◆ diagonal_entries

◆ inverse_diagonal_entries

◆ selected_rows

◆ selected_columns

◆ edge_constrained_indices

◆ edge_constrained_values

◆ have_interface_matrices