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

Inheritance diagram for internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >:

Public Member Functions
	ConstraintInfo ()

void	set_locally_owned_indices (const IndexSet &locally_owned_indices)

void	reinit (const DoFHandler< dim > &dof_handler, const unsigned int n_cells, const bool use_fast_hanging_node_algorithm=true)

void	read_dof_indices (const unsigned int cell_no, const unsigned int mg_level, const TriaIterator< DoFCellAccessor< dim, dim, false > > &cell, const ::AffineConstraints< typename Number::value_type > &constraints, const std::shared_ptr< const Utilities::MPI::Partitioner > &partitioner)

void	reinit (const unsigned int n_cells)

void	read_dof_indices (const unsigned int cell_no, const std::vector< types::global_dof_index > &dof_indices, const std::shared_ptr< const Utilities::MPI::Partitioner > &partitioner)

void	finalize ()

std::shared_ptr< const Utilities::MPI::Partitioner >	finalize (const MPI_Comm comm)

template<typename T , typename VectorType >
void	read_write_operation (const T &operation, VectorType &global_vector, Number *local_vector, const unsigned int first_cell, const unsigned int n_cells, const unsigned int n_dofs_per_cell, const bool apply_constraints) const

void	apply_hanging_node_constraints (const unsigned int first_cell, const unsigned int n_lanes_filled, const bool transpose, AlignedVector< Number > &evaluation_data_coarse) const

std::size_t	memory_consumption () const

Public Attributes
std::vector< unsigned int >	dof_indices

std::vector< std::pair< unsigned short, unsigned short > >	constraint_indicator

std::vector< std::pair< unsigned int, unsigned int > >	row_starts

std::vector< unsigned int >	plain_dof_indices

std::vector< unsigned int >	row_starts_plain_indices

std::vector< typename Number::value_type >	constraint_pool_data

std::vector< unsigned int >	constraint_pool_row_index

std::vector< ShapeInfo< typename Number::value_type > >	shape_infos

std::vector< compressed_constraint_kind >	hanging_node_constraint_masks

std::vector< unsigned int >	active_fe_indices

Private Member Functions
const Number::value_type *	constraint_pool_begin (const unsigned int row) const

const Number::value_type *	constraint_pool_end (const unsigned int row) const

Private Attributes
ConstraintValues< double >	constraint_values

std::vector< std::vector< unsigned int > >	dof_indices_per_cell

std::vector< std::vector< unsigned int > >	plain_dof_indices_per_cell

std::vector< std::vector< std::pair< unsigned short, unsigned short > > >	constraint_indicator_per_cell

std::unique_ptr< HangingNodes< dim > >	hanging_nodes

std::vector< std::vector< unsigned int > >	lexicographic_numbering

std::vector< types::global_dof_index >	local_dof_indices

std::vector< types::global_dof_index >	local_dof_indices_lex

std::vector< ConstraintKinds >	mask

IndexSet	locally_owned_indices

std::pair< types::global_dof_index, types::global_dof_index >	local_range

Detailed Description

template<int dim, typename Number, typename IndexType = unsigned int>
class internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >

A helper class to apply constraints in matrix-free loops in user code. It combines constraint related functionalities from MatrixFree and FEEvaluation.

Definition at line 84 of file constraint_info.h.

Constructor & Destructor Documentation

◆ ConstraintInfo()

template<int dim, typename Number , typename IndexType >

internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::ConstraintInfo ( )

Constructor.

Definition at line 273 of file constraint_info.h.

Member Function Documentation

◆ set_locally_owned_indices()

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::set_locally_owned_indices ( const IndexSet & locally_owned_indices )

Set locally owned indices to accelerate the conversion of global to local indices.

Definition at line 281 of file constraint_info.h.

◆ reinit() [1/2]

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::reinit	(	const DoFHandler< dim > &	dof_handler,
		const unsigned int	n_cells,
		const bool	use_fast_hanging_node_algorithm = true )

inline

Version 1: indices are extracted from DoFCellAccessor and constraints are resolved with the help of AffineConstraints.

Definition at line 298 of file constraint_info.h.

◆ read_dof_indices() [1/2]

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::read_dof_indices	(	const unsigned int	cell_no,
		const unsigned int	mg_level,
		const TriaIterator< DoFCellAccessor< dim, dim, false > > &	cell,
		const ::AffineConstraints< typename Number::value_type > &	constraints,
		const std::shared_ptr< const Utilities::MPI::Partitioner > &	partitioner )

inline

Definition at line 359 of file constraint_info.h.

◆ reinit() [2/2]

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::reinit ( const unsigned int n_cells )

inline

Version 2: no constraints, indices are user-provided.

Definition at line 348 of file constraint_info.h.

◆ read_dof_indices() [2/2]

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::read_dof_indices	(	const unsigned int	cell_no,
		const std::vector< types::global_dof_index > &	dof_indices,
		const std::shared_ptr< const Utilities::MPI::Partitioner > &	partitioner )

inline

Definition at line 492 of file constraint_info.h.

◆ finalize() [1/2]

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::finalize ( )

inline

Definition at line 549 of file constraint_info.h.

◆ finalize() [2/2]

template<int dim, typename Number , typename IndexType >

std::shared_ptr< const Utilities::MPI::Partitioner > internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::finalize ( const MPI_Comm comm )

inline

Definition at line 636 of file constraint_info.h.

◆ read_write_operation()

template<int dim, typename Number , typename IndexType >

template<typename T , typename VectorType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::read_write_operation	(	const T &	operation,
		VectorType &	global_vector,
		Number *	local_vector,
		const unsigned int	first_cell,
		const unsigned int	n_cells,
		const unsigned int	n_dofs_per_cell,
		const bool	apply_constraints ) const

inline

Definition at line 770 of file constraint_info.h.

◆ apply_hanging_node_constraints()

template<int dim, typename Number , typename IndexType >

void internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::apply_hanging_node_constraints	(	const unsigned int	first_cell,
		const unsigned int	n_lanes_filled,
		const bool	transpose,
		AlignedVector< Number > &	evaluation_data_coarse ) const

inline

Definition at line 854 of file constraint_info.h.

◆ memory_consumption()

template<int dim, typename Number , typename IndexType >

std::size_t internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::memory_consumption ( ) const

inline

Return the memory consumption of the allocated memory in this class.

Definition at line 932 of file constraint_info.h.

◆ constraint_pool_begin()

template<int dim, typename Number , typename IndexType >

const Number::value_type * internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::constraint_pool_begin ( const unsigned int row ) const

inlineprivate

Definition at line 906 of file constraint_info.h.

◆ constraint_pool_end()

template<int dim, typename Number , typename IndexType >

const Number::value_type * internal::MatrixFreeFunctions::ConstraintInfo< dim, Number, IndexType >::constraint_pool_end ( const unsigned int row ) const

inlineprivate

Definition at line 919 of file constraint_info.h.