MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType > Class Template Reference

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

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

Public Types
using	value_type = typename Base< dim, VectorType >::value_type
using	size_type = typename Base< dim, VectorType >::size_type
Public Types inherited from MatrixFreeOperators::Base< dim, VectorType >
using	value_type = typename VectorType::value_type
using	size_type = typename VectorType::size_type

Public Member Functions
	MassOperator ()
virtual void	compute_diagonal () override
Public Member Functions inherited from MatrixFreeOperators::Base< dim, VectorType >
	Base ()
virtual	~Base () override=default
virtual void	clear ()
void	initialize (std::shared_ptr< const MatrixFree< dim, 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 >> 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 >> 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 > >	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
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)

Private Member Functions
virtual void	apply_add (VectorType &dst, const VectorType &src) const override
void	local_apply_cell (const MatrixFree< dim, value_type > &data, VectorType &dst, const VectorType &src, const std::pair< unsigned int, unsigned int > &cell_range) const

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)
Protected Member Functions inherited from MatrixFreeOperators::Base< dim, VectorType >
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 inherited from MatrixFreeOperators::Base< dim, VectorType >
std::shared_ptr< const MatrixFree< dim, value_type > >	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

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

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.

Author

Daniel Arndt, 2016

Definition at line 714 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>>

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

Number alias.

Definition at line 720 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>>

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

size_type needed for preconditioner classes.

Definition at line 725 of file operators.h.

Constructor & Destructor Documentation

MassOperator()

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

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

(

)

Constructor.

Definition at line 1726 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 >

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

overridevirtual

For preconditioning, we store a lumped mass matrix at the diagonal entries.

Implements MatrixFreeOperators::Base< dim, VectorType >.

Definition at line 1739 of file operators.h.

apply_add()

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

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

Definition at line 1775 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>>

void MatrixFreeOperators::MassOperator< dim, fe_degree, n_q_points_1d, n_components, VectorType >::local_apply_cell ( const MatrixFree< dim, value_type > &  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 1792 of file operators.h.

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

• deal.II/matrix_free/operators.h