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

Inheritance diagram for internal::MatrixFreeFunctions::VectorDataExchange::Full:

Public Member Functions
	Full (const std::shared_ptr< const Utilities::MPI::Partitioner > &partitioner, const MPI_Comm communicator_sm)

unsigned int	locally_owned_size () const override

unsigned int	n_ghost_indices () const override

unsigned int	n_import_indices () const override

virtual unsigned int	n_import_sm_procs () const override

virtual types::global_dof_index	size () const override

MPI_Comm	get_sm_mpi_communicator () const

void	export_to_ghosted_array_start (const unsigned int communication_channel, const ArrayView< const double > &locally_owned_array, const std::vector< ArrayView< const double > > &shared_arrays, const ArrayView< double > &ghost_array, const ArrayView< double > &temporary_storage, std::vector< MPI_Request > &requests) const override

void	export_to_ghosted_array_finish (const ArrayView< const double > &locally_owned_array, const std::vector< ArrayView< const double > > &shared_arrays, const ArrayView< double > &ghost_array, std::vector< MPI_Request > &requests) const override

void	import_from_ghosted_array_start (const VectorOperation::values vector_operation, const unsigned int communication_channel, const ArrayView< const double > &locally_owned_array, const std::vector< ArrayView< const double > > &shared_arrays, const ArrayView< double > &ghost_array, const ArrayView< double > &temporary_storage, std::vector< MPI_Request > &requests) const override

void	import_from_ghosted_array_finish (const VectorOperation::values vector_operation, const ArrayView< double > &locally_owned_storage, const std::vector< ArrayView< const double > > &shared_arrays, const ArrayView< double > &ghost_array, const ArrayView< const double > &temporary_storage, std::vector< MPI_Request > &requests) const override

void	reset_ghost_values (const ArrayView< double > &ghost_array) const override

void	export_to_ghosted_array_start (const unsigned int communication_channel, const ArrayView< const float > &locally_owned_array, const std::vector< ArrayView< const float > > &shared_arrays, const ArrayView< float > &ghost_array, const ArrayView< float > &temporary_storage, std::vector< MPI_Request > &requests) const override

void	export_to_ghosted_array_finish (const ArrayView< const float > &locally_owned_array, const std::vector< ArrayView< const float > > &shared_arrays, const ArrayView< float > &ghost_array, std::vector< MPI_Request > &requests) const override

void	import_from_ghosted_array_start (const VectorOperation::values vector_operation, const unsigned int communication_channel, const ArrayView< const float > &locally_owned_array, const std::vector< ArrayView< const float > > &shared_arrays, const ArrayView< float > &ghost_array, const ArrayView< float > &temporary_storage, std::vector< MPI_Request > &requests) const override

void	import_from_ghosted_array_finish (const VectorOperation::values vector_operation, const ArrayView< float > &locally_owned_storage, const std::vector< ArrayView< const float > > &shared_arrays, const ArrayView< float > &ghost_array, const ArrayView< const float > &temporary_storage, std::vector< MPI_Request > &requests) const override

void	reset_ghost_values (const ArrayView< float > &ghost_array) const override

Private Member Functions
template<typename Number >
void	export_to_ghosted_array_start_impl (const unsigned int communication_channel, const ArrayView< const Number > &locally_owned_array, const std::vector< ArrayView< const Number > > &shared_arrays, const ArrayView< Number > &ghost_array, const ArrayView< Number > &temporary_storage, std::vector< MPI_Request > &requests) const

template<typename Number >
void	export_to_ghosted_array_finish_impl (const ArrayView< const Number > &locally_owned_array, const std::vector< ArrayView< const Number > > &shared_arrays, const ArrayView< Number > &ghost_array, std::vector< MPI_Request > &requests) const

template<typename Number >
void	import_from_ghosted_array_start_impl (const VectorOperation::values vector_operation, const unsigned int communication_channel, const ArrayView< const Number > &locally_owned_array, const std::vector< ArrayView< const Number > > &shared_arrays, const ArrayView< Number > &ghost_array, const ArrayView< Number > &temporary_storage, std::vector< MPI_Request > &requests) const

template<typename Number >
void	import_from_ghosted_array_finish_impl (const VectorOperation::values vector_operation, const ArrayView< Number > &locally_owned_storage, const std::vector< ArrayView< const Number > > &shared_arrays, const ArrayView< Number > &ghost_array, const ArrayView< const Number > &temporary_storage, std::vector< MPI_Request > &requests) const

template<typename Number >
void	reset_ghost_values_impl (const ArrayView< Number > &ghost_array) const

Private Attributes
const MPI_Comm	comm

const MPI_Comm	comm_sm

const unsigned int	n_local_elements

const unsigned int	n_ghost_elements

const types::global_dof_index	n_global_elements

std::vector< unsigned int >	n_ghost_indices_in_larger_set_by_remote_rank

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

std::vector< std::array< unsigned int, 3 > >	ghost_targets_data

std::vector< std::array< unsigned int, 3 > >	import_targets_data

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

std::vector< unsigned int >	sm_ghost_ranks

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

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

std::vector< unsigned int >	sm_import_ranks

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

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

Detailed Description

Similar to the above but using the internal data structures in the partitioner in order to identify indices of degrees of freedom that are in the same shared memory region.

Definition at line 261 of file vector_data_exchange.h.

Constructor & Destructor Documentation

◆ Full()

internal::MatrixFreeFunctions::VectorDataExchange::Full::Full	(	const std::shared_ptr< const Utilities::MPI::Partitioner > &	partitioner,
		const MPI_Comm	communicator_sm
	)

Definition at line 370 of file vector_data_exchange.cc.

Member Function Documentation

◆ locally_owned_size()

unsigned int internal::MatrixFreeFunctions::VectorDataExchange::Full::locally_owned_size ( ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1314 of file vector_data_exchange.cc.

◆ n_ghost_indices()

unsigned int internal::MatrixFreeFunctions::VectorDataExchange::Full::n_ghost_indices ( ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1322 of file vector_data_exchange.cc.

◆ n_import_indices()

unsigned int internal::MatrixFreeFunctions::VectorDataExchange::Full::n_import_indices ( ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1330 of file vector_data_exchange.cc.

◆ n_import_sm_procs()

unsigned int internal::MatrixFreeFunctions::VectorDataExchange::Full::n_import_sm_procs ( ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1340 of file vector_data_exchange.cc.

◆ size()

types::global_dof_index internal::MatrixFreeFunctions::VectorDataExchange::Full::size ( ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1348 of file vector_data_exchange.cc.

◆ get_sm_mpi_communicator()

MPI_Comm internal::MatrixFreeFunctions::VectorDataExchange::Full::get_sm_mpi_communicator ( ) const

Definition at line 1356 of file vector_data_exchange.cc.

◆ export_to_ghosted_array_start() [1/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::export_to_ghosted_array_start	(	const unsigned int	communication_channel,
		const ArrayView< const double > &	locally_owned_array,
		const std::vector< ArrayView< const double > > &	shared_arrays,
		const ArrayView< double > &	ghost_array,
		const ArrayView< double > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 673 of file vector_data_exchange.cc.

◆ export_to_ghosted_array_finish() [1/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::export_to_ghosted_array_finish	(	const ArrayView< const double > &	locally_owned_array,
		const std::vector< ArrayView< const double > > &	shared_arrays,
		const ArrayView< double > &	ghost_array,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 692 of file vector_data_exchange.cc.

◆ import_from_ghosted_array_start() [1/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::import_from_ghosted_array_start	(	const VectorOperation::values	vector_operation,
		const unsigned int	communication_channel,
		const ArrayView< const double > &	locally_owned_array,
		const std::vector< ArrayView< const double > > &	shared_arrays,
		const ArrayView< double > &	ghost_array,
		const ArrayView< double > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 707 of file vector_data_exchange.cc.

◆ import_from_ghosted_array_finish() [1/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::import_from_ghosted_array_finish	(	const VectorOperation::values	vector_operation,
		const ArrayView< double > &	locally_owned_storage,
		const std::vector< ArrayView< const double > > &	shared_arrays,
		const ArrayView< double > &	ghost_array,
		const ArrayView< const double > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 728 of file vector_data_exchange.cc.

◆ reset_ghost_values() [1/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::reset_ghost_values ( const ArrayView< double > & ghost_array ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1364 of file vector_data_exchange.cc.

◆ export_to_ghosted_array_start() [2/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::export_to_ghosted_array_start	(	const unsigned int	communication_channel,
		const ArrayView< const float > &	locally_owned_array,
		const std::vector< ArrayView< const float > > &	shared_arrays,
		const ArrayView< float > &	ghost_array,
		const ArrayView< float > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 747 of file vector_data_exchange.cc.

◆ export_to_ghosted_array_finish() [2/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::export_to_ghosted_array_finish	(	const ArrayView< const float > &	locally_owned_array,
		const std::vector< ArrayView< const float > > &	shared_arrays,
		const ArrayView< float > &	ghost_array,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 766 of file vector_data_exchange.cc.

◆ import_from_ghosted_array_start() [2/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::import_from_ghosted_array_start	(	const VectorOperation::values	vector_operation,
		const unsigned int	communication_channel,
		const ArrayView< const float > &	locally_owned_array,
		const std::vector< ArrayView< const float > > &	shared_arrays,
		const ArrayView< float > &	ghost_array,
		const ArrayView< float > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 781 of file vector_data_exchange.cc.

◆ import_from_ghosted_array_finish() [2/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::import_from_ghosted_array_finish	(	const VectorOperation::values	vector_operation,
		const ArrayView< float > &	locally_owned_storage,
		const std::vector< ArrayView< const float > > &	shared_arrays,
		const ArrayView< float > &	ghost_array,
		const ArrayView< const float > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 802 of file vector_data_exchange.cc.

◆ reset_ghost_values() [2/2]

void internal::MatrixFreeFunctions::VectorDataExchange::Full::reset_ghost_values ( const ArrayView< float > & ghost_array ) const

overridevirtual

Implements internal::MatrixFreeFunctions::VectorDataExchange::Base.

Definition at line 1372 of file vector_data_exchange.cc.

◆ export_to_ghosted_array_start_impl()

template<typename Number >

void internal::MatrixFreeFunctions::VectorDataExchange::Full::export_to_ghosted_array_start_impl	(	const unsigned int	communication_channel,
		const ArrayView< const Number > &	locally_owned_array,
		const std::vector< ArrayView< const Number > > &	shared_arrays,
		const ArrayView< Number > &	ghost_array,
		const ArrayView< Number > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

private

Definition at line 822 of file vector_data_exchange.cc.

◆ export_to_ghosted_array_finish_impl()

template<typename Number >

void internal::MatrixFreeFunctions::VectorDataExchange::Full::export_to_ghosted_array_finish_impl	(	const ArrayView< const Number > &	locally_owned_array,
		const std::vector< ArrayView< const Number > > &	shared_arrays,
		const ArrayView< Number > &	ghost_array,
		std::vector< MPI_Request > &	requests
	)		const

private

Definition at line 922 of file vector_data_exchange.cc.

◆ import_from_ghosted_array_start_impl()

template<typename Number >

void internal::MatrixFreeFunctions::VectorDataExchange::Full::import_from_ghosted_array_start_impl	(	const VectorOperation::values	vector_operation,
		const unsigned int	communication_channel,
		const ArrayView< const Number > &	locally_owned_array,
		const std::vector< ArrayView< const Number > > &	shared_arrays,
		const ArrayView< Number > &	ghost_array,
		const ArrayView< Number > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

private

Definition at line 1061 of file vector_data_exchange.cc.

◆ import_from_ghosted_array_finish_impl()

template<typename Number >

void internal::MatrixFreeFunctions::VectorDataExchange::Full::import_from_ghosted_array_finish_impl	(	const VectorOperation::values	vector_operation,
		const ArrayView< Number > &	locally_owned_storage,
		const std::vector< ArrayView< const Number > > &	shared_arrays,
		const ArrayView< Number > &	ghost_array,
		const ArrayView< const Number > &	temporary_storage,
		std::vector< MPI_Request > &	requests
	)		const

private

Definition at line 1190 of file vector_data_exchange.cc.

◆ reset_ghost_values_impl()

template<typename Number >

void internal::MatrixFreeFunctions::VectorDataExchange::Full::reset_ghost_values_impl ( const ArrayView< Number > & ghost_array ) const

private

Definition at line 1381 of file vector_data_exchange.cc.

Member Data Documentation

◆ comm

const MPI_Comm internal::MatrixFreeFunctions::VectorDataExchange::Full::comm

private

Global communicator.

Definition at line 410 of file vector_data_exchange.h.

◆ comm_sm

const MPI_Comm internal::MatrixFreeFunctions::VectorDataExchange::Full::comm_sm

private

Shared-memory sub-communicator.

Definition at line 415 of file vector_data_exchange.h.

◆ n_local_elements

const unsigned int internal::MatrixFreeFunctions::VectorDataExchange::Full::n_local_elements

private

Number of locally-owned vector entries.

Definition at line 420 of file vector_data_exchange.h.

◆ n_ghost_elements

const unsigned int internal::MatrixFreeFunctions::VectorDataExchange::Full::n_ghost_elements

private

Number of ghost vector entries.

Definition at line 425 of file vector_data_exchange.h.

◆ n_global_elements

const types::global_dof_index internal::MatrixFreeFunctions::VectorDataExchange::Full::n_global_elements

private

Number of global vector entries.

Definition at line 430 of file vector_data_exchange.h.

◆ n_ghost_indices_in_larger_set_by_remote_rank

std::vector<unsigned int> internal::MatrixFreeFunctions::VectorDataExchange::Full::n_ghost_indices_in_larger_set_by_remote_rank

private

A variable caching the number of ghost indices in a larger set of indices by rank.

Definition at line 436 of file vector_data_exchange.h.

◆ ghost_indices_subset_data

std::pair<std::vector<unsigned int>, std::vector<std::pair<unsigned int, unsigned int> > > internal::MatrixFreeFunctions::VectorDataExchange::Full::ghost_indices_subset_data

private

The set of indices that appear for an IndexSet that is a subset of a larger set for each rank in a compressed manner.

Definition at line 444 of file vector_data_exchange.h.

◆ ghost_targets_data

std::vector<std::array<unsigned int, 3> > internal::MatrixFreeFunctions::VectorDataExchange::Full::ghost_targets_data

private

An array that contains information which processors my ghost indices belong to, at which offset and how many those indices are

Definition at line 450 of file vector_data_exchange.h.

◆ import_targets_data

std::vector<std::array<unsigned int, 3> > internal::MatrixFreeFunctions::VectorDataExchange::Full::import_targets_data

private

The set of processors and length of data field which send us their ghost data.

Note: Structured as ghost_targets_data.

Definition at line 458 of file vector_data_exchange.h.

◆ import_indices_data

std::pair<std::vector<unsigned int>, std::vector<std::pair<unsigned int, unsigned int> > > internal::MatrixFreeFunctions::VectorDataExchange::Full::import_indices_data

private

An array that caches the number of chunks in the import indices per MPI rank. The length is import_indices_data.size()+1.

The set of (local) indices that we are importing during compress() from remote processes, i.e., others' ghosts that belong to the local range.

Definition at line 470 of file vector_data_exchange.h.

◆ sm_ghost_ranks

std::vector<unsigned int> internal::MatrixFreeFunctions::VectorDataExchange::Full::sm_ghost_ranks

private

Shared-memory ranks from which data is copied from during export_to_ghosted_array_finish().

Definition at line 476 of file vector_data_exchange.h.

◆ sm_export_data

std::pair<std::vector<unsigned int>, std::vector<std::pair<unsigned int, unsigned int> > > internal::MatrixFreeFunctions::VectorDataExchange::Full::sm_export_data

private

Indices from where to copy data from during export_to_ghosted_array_finish().

Definition at line 484 of file vector_data_exchange.h.

◆ sm_export_data_this

std::pair<std::vector<unsigned int>, std::vector<std::pair<unsigned int, unsigned int> > > internal::MatrixFreeFunctions::VectorDataExchange::Full::sm_export_data_this

private

Indices where to copy data to during export_to_ghosted_array_finish().

Definition at line 492 of file vector_data_exchange.h.

◆ sm_import_ranks

std::vector<unsigned int> internal::MatrixFreeFunctions::VectorDataExchange::Full::sm_import_ranks

private

Shared-memory ranks from where to copy data from during import_from_ghosted_array_finish().

Definition at line 498 of file vector_data_exchange.h.

◆ sm_import_data

std::pair<std::vector<unsigned int>, std::vector<std::pair<unsigned int, unsigned int> > > internal::MatrixFreeFunctions::VectorDataExchange::Full::sm_import_data

private

Indices from where to copy data from during import_from_ghosted_array_finish().

Definition at line 506 of file vector_data_exchange.h.

◆ sm_import_data_this

std::pair<std::vector<unsigned int>, std::vector<std::pair<unsigned int, unsigned int> > > internal::MatrixFreeFunctions::VectorDataExchange::Full::sm_import_data_this

private

Indices where to copy data to during import_from_ghosted_array_finish().

Definition at line 514 of file vector_data_exchange.h.

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

include/deal.II/matrix_free/vector_data_exchange.h
source/matrix_free/vector_data_exchange.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Full()

Member Function Documentation

◆ locally_owned_size()

◆ n_ghost_indices()

◆ n_import_indices()

◆ n_import_sm_procs()

◆ size()

◆ get_sm_mpi_communicator()

◆ export_to_ghosted_array_start() [1/2]

◆ export_to_ghosted_array_finish() [1/2]

◆ import_from_ghosted_array_start() [1/2]

◆ import_from_ghosted_array_finish() [1/2]

◆ reset_ghost_values() [1/2]

◆ export_to_ghosted_array_start() [2/2]

◆ export_to_ghosted_array_finish() [2/2]

◆ import_from_ghosted_array_start() [2/2]

◆ import_from_ghosted_array_finish() [2/2]

◆ reset_ghost_values() [2/2]

◆ export_to_ghosted_array_start_impl()

◆ export_to_ghosted_array_finish_impl()

◆ import_from_ghosted_array_start_impl()

◆ import_from_ghosted_array_finish_impl()

◆ reset_ghost_values_impl()

Member Data Documentation

◆ comm

◆ comm_sm

◆ n_local_elements

◆ n_ghost_elements

◆ n_global_elements

◆ n_ghost_indices_in_larger_set_by_remote_rank

◆ ghost_indices_subset_data

◆ ghost_targets_data

◆ import_targets_data

◆ import_indices_data

◆ sm_ghost_ranks

◆ sm_export_data

◆ sm_export_data_this

◆ sm_import_ranks

◆ sm_import_data

◆ sm_import_data_this