#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

using	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, VectorizedArrayType > > 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, VectorizedArrayType > > 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, VectorizedArrayType > > 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 (VectorType &dst, const VectorType &src) const

void	vmult_interface_up (VectorType &dst, const VectorType &src) const

void	vmult (VectorType &dst, const VectorType &src) const

void	Tvmult (VectorType &dst, const VectorType &src) const

void	vmult_add (VectorType &dst, const VectorType &src) const

void	Tvmult_add (VectorType &dst, const VectorType &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 (VectorType &vec) const

std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArrayType > >	get_matrix_free () const

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

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

void	precondition_Jacobi (VectorType &dst, const VectorType &src, const value_type omega) const

template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Subscriptor functionality
Classes derived from Subscriptor provide a facility to subscribe to this object. This is mostly used by the SmartPointer class.
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

Static Public Member Functions
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)

static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)

Protected Member Functions
void	preprocess_constraints (VectorType &dst, const VectorType &src) const

void	postprocess_constraints (VectorType &dst, const VectorType &src) const

void	set_constrained_entries_to_one (VectorType &dst) const

virtual void	Tapply_add (VectorType &dst, const VectorType &src) const

Protected Attributes
std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArrayType > >	data

std::shared_ptr< DiagonalMatrix< VectorType > >	diagonal_entries

std::shared_ptr< DiagonalMatrix< VectorType > >	inverse_diagonal_entries

std::vector< unsigned int >	selected_rows

std::vector< unsigned int >	selected_columns

Private Types
using	map_value_type = decltype(counter_map)::value_type

using	map_iterator = decltype(counter_map)::iterator

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 (VectorType &dst, const VectorType &src, const bool transpose) const

void	adjust_ghost_range_if_necessary (const VectorType &vec, const bool is_row) const

void	check_no_subscribers () const noexcept

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

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

Static Private Attributes
static std::mutex	mutex

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: 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 761 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

Initial value:

typename Base<dim, VectorType, VectorizedArrayType>::value_type

MatrixFreeOperators::Base::value_type

typename VectorType::value_type value_type

Definition operators.h:193

Number alias.

Definition at line 767 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

Initial value:

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

MatrixFreeOperators::Base::size_type

typename VectorType::size_type size_type

Definition operators.h:198

size_type needed for preconditioner classes.

Definition at line 773 of file operators.h.

◆ map_value_type

using Subscriptor::map_value_type = decltype(counter_map)::value_type

privateinherited

The data type used in counter_map.

Definition at line 229 of file subscriptor.h.

◆ map_iterator

using Subscriptor::map_iterator = decltype(counter_map)::iterator

privateinherited

The iterator type used in counter_map.

Definition at line 234 of file subscriptor.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 1898 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, VectorType, VectorizedArrayType >.

Definition at line 1923 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 2005 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 ( ) const

Get read access to the lumped diagonal of this operator.

Definition at line 2084 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 ( ) const

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

Definition at line 2062 of file operators.h.

◆ apply_add()

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().

Implements MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >.

Definition at line 2106 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 2127 of file operators.h.

◆ clear()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::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 1254 of file operators.h.

◆ initialize() [1/3]

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::initialize	(	std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArrayType > >	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 1304 of file operators.h.

◆ initialize() [2/3]

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::initialize	(	std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArrayType > >	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 1357 of file operators.h.

◆ initialize() [3/3]

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::initialize	(	std::shared_ptr< const MatrixFree< dim, value_type, VectorizedArrayType > >	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 1373 of file operators.h.

◆ m()

template<int dim, typename VectorType , typename VectorizedArrayType >

Base< dim, VectorType, VectorizedArrayType >::size_type MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::m ( ) const

inherited

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

Definition at line 1226 of file operators.h.

◆ n()

template<int dim, typename VectorType , typename VectorizedArrayType >

Base< dim, VectorType, VectorizedArrayType >::size_type MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::n ( ) const

inherited

Return the dimension of the domain space.

Definition at line 1240 of file operators.h.

◆ vmult_interface_down()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::vmult_interface_down	(	VectorType &	dst,
		const VectorType &	src ) const

inherited

vmult operator for interface.

Definition at line 1623 of file operators.h.

◆ vmult_interface_up()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::vmult_interface_up	(	VectorType &	dst,
		const VectorType &	src ) const

inherited

vmult operator for interface.

Definition at line 1677 of file operators.h.

◆ vmult()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::vmult	(	VectorType &	dst,
		const VectorType &	src ) const

inherited

Matrix-vector multiplication.

Definition at line 1462 of file operators.h.

◆ Tvmult()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::Tvmult	(	VectorType &	dst,
		const VectorType &	src ) const

inherited

Transpose matrix-vector multiplication.

Definition at line 1718 of file operators.h.

◆ vmult_add()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::vmult_add	(	VectorType &	dst,
		const VectorType &	src ) const

inherited

Adding Matrix-vector multiplication.

Definition at line 1475 of file operators.h.

◆ Tvmult_add()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::Tvmult_add	(	VectorType &	dst,
		const VectorType &	src ) const

inherited

Adding transpose matrix-vector multiplication.

Definition at line 1486 of file operators.h.

◆ el()

template<int dim, typename VectorType , typename VectorizedArrayType >

Base< dim, VectorType, VectorizedArrayType >::value_type MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::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 1264 of file operators.h.

◆ memory_consumption()

template<int dim, typename VectorType , typename VectorizedArrayType >

std::size_t MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::memory_consumption ( ) const

virtualinherited

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

Definition at line 1732 of file operators.h.

◆ initialize_dof_vector()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::initialize_dof_vector ( VectorType & vec ) const

inherited

A wrapper for initialize_dof_vector() of MatrixFree object.

Definition at line 1279 of file operators.h.

◆ get_matrix_free()

template<int dim, typename VectorType , typename VectorizedArrayType >

std::shared_ptr< const MatrixFree< dim, typename Base< dim, VectorType, VectorizedArrayType >::value_type, VectorizedArrayType > > MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::get_matrix_free ( ) const

inherited

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

Definition at line 1746 of file operators.h.

◆ get_matrix_diagonal_inverse()

template<int dim, typename VectorType , typename VectorizedArrayType >

const std::shared_ptr< DiagonalMatrix< VectorType > > & MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::get_matrix_diagonal_inverse ( ) const

inherited

Get read access to the inverse diagonal of this operator.

Definition at line 1755 of file operators.h.

◆ get_matrix_diagonal()

template<int dim, typename VectorType , typename VectorizedArrayType >

const std::shared_ptr< DiagonalMatrix< VectorType > > & MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::get_matrix_diagonal ( ) const

inherited

Get read access to the diagonal of this operator.

Definition at line 1768 of file operators.h.

◆ precondition_Jacobi()

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::precondition_Jacobi	(	VectorType &	dst,
		const VectorType &	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 1790 of file operators.h.

◆ preprocess_constraints()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::preprocess_constraints	(	VectorType &	dst,
		const VectorType &	src ) const

protectedinherited

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

Definition at line 1539 of file operators.h.

◆ postprocess_constraints()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::postprocess_constraints	(	VectorType &	dst,
		const VectorType &	src ) const

protectedinherited

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

Definition at line 1589 of file operators.h.

◆ set_constrained_entries_to_one()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::set_constrained_entries_to_one ( VectorType & dst ) const

protectedinherited

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

Definition at line 1443 of file operators.h.

◆ Tapply_add()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::Tapply_add	(	VectorType &	dst,
		const VectorType &	src ) const

protectedvirtualinherited

Apply transpose operator to src and add result in dst.

Default implementation is to call apply_add().

Definition at line 1779 of file operators.h.

◆ mult_add()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::mult_add	(	VectorType &	dst,
		const VectorType &	src,
		const bool	transpose ) const

privateinherited

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

Definition at line 1569 of file operators.h.

◆ adjust_ghost_range_if_necessary()

template<int dim, typename VectorType , typename VectorizedArrayType >

void MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::adjust_ghost_range_if_necessary	(	const VectorType &	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 1497 of file operators.h.

◆ subscribe()

void Subscriptor::subscribe	(	std::atomic< bool > *const	validity,
		const std::string &	identifier = "" ) const

inherited

Subscribes a user of the object by storing the pointer validity. The subscriber may be identified by text supplied as identifier.

Definition at line 135 of file subscriptor.cc.

◆ unsubscribe()

void Subscriptor::unsubscribe	(	std::atomic< bool > *const	validity,
		const std::string &	identifier = "" ) const

inherited

Unsubscribes a user from the object.

Note: The identifier and the validity pointer must be the same as the one supplied to subscribe().

Definition at line 155 of file subscriptor.cc.

◆ n_subscriptions()

unsigned int Subscriptor::n_subscriptions ( ) const

inlineinherited

Return the present number of subscriptions to this object. This allows to use this class for reference counted lifetime determination where the last one to unsubscribe also deletes the object.

Definition at line 300 of file subscriptor.h.

◆ list_subscribers() [1/2]

template<typename StreamType >

void Subscriptor::list_subscribers ( StreamType & stream ) const

inlineinherited

List the subscribers to the input stream.

Definition at line 317 of file subscriptor.h.

◆ list_subscribers() [2/2]

void Subscriptor::list_subscribers ( ) const

inherited

List the subscribers to deallog.

Definition at line 203 of file subscriptor.cc.

◆ serialize()

template<class Archive >

void Subscriptor::serialize	(	Archive &	ar,
		const unsigned int	version )

inlineinherited

Read or write the data of this object to or from a stream for the purpose of serialization using the BOOST serialization library.

This function does not actually serialize any of the member variables of this class. The reason is that what this class stores is only who subscribes to this object, but who does so at the time of storing the contents of this object does not necessarily have anything to do with who subscribes to the object when it is restored. Consequently, we do not want to overwrite the subscribers at the time of restoring, and then there is no reason to write the subscribers out in the first place.

Definition at line 309 of file subscriptor.h.

◆ check_no_subscribers()

void Subscriptor::check_no_subscribers ( ) const

privatenoexceptinherited

Check that there are no objects subscribing to this object. If this check passes then it is safe to destroy the current object. It this check fails then this function will either abort or print an error message to deallog (by using the AssertNothrow mechanism), but will not throw an exception.

Note: Since this function is just a consistency check it does nothing in release mode.; If this function is called when there is an uncaught exception then, rather than aborting, this function prints an error message to the standard error stream and returns.

Definition at line 52 of file subscriptor.cc.

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 841 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 847 of file operators.h.

◆ data

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::shared_ptr<const MatrixFree<dim, value_type, VectorizedArrayType> > MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::data

protectedinherited

MatrixFree object to be used with this operator.

Definition at line 435 of file operators.h.

◆ diagonal_entries

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::shared_ptr<DiagonalMatrix<VectorType> > MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::diagonal_entries

protectedinherited

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

Definition at line 441 of file operators.h.

◆ inverse_diagonal_entries

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::shared_ptr<DiagonalMatrix<VectorType> > MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::inverse_diagonal_entries

protectedinherited

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

Definition at line 447 of file operators.h.

◆ selected_rows

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::vector<unsigned int> MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::selected_rows

protectedinherited

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

Definition at line 453 of file operators.h.

◆ selected_columns

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::vector<unsigned int> MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::selected_columns

protectedinherited

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

Definition at line 459 of file operators.h.

◆ edge_constrained_indices

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::vector<std::vector<unsigned int> > MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::edge_constrained_indices

privateinherited

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

Definition at line 465 of file operators.h.

◆ edge_constrained_values

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

std::vector<std::vector<std::pair<value_type, value_type> > > MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::edge_constrained_values

mutableprivateinherited

Auxiliary vector.

Definition at line 471 of file operators.h.

◆ have_interface_matrices

template<int dim, typename VectorType = LinearAlgebra::distributed::Vector<double>, typename VectorizedArrayType = VectorizedArray<typename VectorType::value_type>>

bool MatrixFreeOperators::Base< dim, VectorType, VectorizedArrayType >::have_interface_matrices

privateinherited

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

Definition at line 477 of file operators.h.

◆ counter

std::atomic<unsigned int> Subscriptor::counter

mutableprivateinherited

Store the number of objects which subscribed to this object. Initially, this number is zero, and upon destruction it shall be zero again (i.e. all objects which subscribed should have unsubscribed again).

The creator (and owner) of an object is counted in the map below if HE manages to supply identification.

We use the mutable keyword in order to allow subscription to constant objects also.

This counter may be read from and written to concurrently in multithreaded code: hence we use the std::atomic class template.

Definition at line 218 of file subscriptor.h.

◆ counter_map

std::map<std::string, unsigned int> Subscriptor::counter_map

mutableprivateinherited

In this map, we count subscriptions for each different identification string supplied to subscribe().

Definition at line 224 of file subscriptor.h.

◆ validity_pointers

std::vector<std::atomic<bool> *> Subscriptor::validity_pointers

mutableprivateinherited

In this vector, we store pointers to the validity bool in the SmartPointer objects that subscribe to this class.

Definition at line 240 of file subscriptor.h.

◆ object_info

const std::type_info* Subscriptor::object_info

mutableprivateinherited

Pointer to the typeinfo object of this object, from which we can later deduce the class name. Since this information on the derived class is neither available in the destructor, nor in the constructor, we obtain it in between and store it here.

Definition at line 248 of file subscriptor.h.

◆ mutex

std::mutex Subscriptor::mutex

staticprivateinherited

A mutex used to ensure data consistency when accessing the mutable members of this class. This lock is used in the subscribe() and unsubscribe() functions, as well as in list_subscribers().

Definition at line 271 of file subscriptor.h.

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

include/deal.II/matrix_free/operators.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Types

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

◆ value_type

◆ size_type

◆ map_value_type

◆ map_iterator

Constructor & Destructor Documentation

◆ MassOperator()

Member Function Documentation

◆ compute_diagonal()

◆ compute_lumped_diagonal()

◆ get_matrix_lumped_diagonal()

◆ get_matrix_lumped_diagonal_inverse()

◆ apply_add()

◆ 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()

◆ Tapply_add()

◆ mult_add()

◆ adjust_ghost_range_if_necessary()

◆ subscribe()

◆ unsubscribe()

◆ n_subscriptions()

◆ list_subscribers() [1/2]

◆ list_subscribers() [2/2]

◆ serialize()

◆ check_no_subscribers()

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

◆ counter

◆ counter_map

◆ validity_pointers

◆ object_info

◆ mutex