Specific communicator created via MPI_Dist_graph_create_adjacent. More...

Inheritance diagram for Arcane::VariableSynchronizerMpiCommunicator:

Collaboration diagram for Arcane::VariableSynchronizerMpiCommunicator:

Public Member Functions
	VariableSynchronizerMpiCommunicator (MpiParallelMng *pm)
MPI_Comm	communicator () const override
	Retrieves the specific communicator from the topology.
void	compute (VariableSynchronizer *var_syncer) override
	Calculates the specific communicator.

Private Member Functions
void	_checkFreeCommunicator ()

Private Attributes
MpiParallelMng *	m_mpi_parallel_mng = nullptr
MPI_Comm	m_topology_communicator = MPI_COMM_NULL

Detailed Description

Specific communicator created via MPI_Dist_graph_create_adjacent.

Definition at line 132 of file MpiParallelMng.cc.

Constructor & Destructor Documentation

◆ VariableSynchronizerMpiCommunicator()

Arcane::VariableSynchronizerMpiCommunicator::VariableSynchronizerMpiCommunicator ( MpiParallelMng * pm )

inlineexplicit

Definition at line 137 of file MpiParallelMng.cc.

◆ ~VariableSynchronizerMpiCommunicator()

Arcane::VariableSynchronizerMpiCommunicator::~VariableSynchronizerMpiCommunicator ( )

inlineoverride

Definition at line 140 of file MpiParallelMng.cc.

Member Function Documentation

◆ _checkFreeCommunicator()

void Arcane::VariableSynchronizerMpiCommunicator::_checkFreeCommunicator ( )

inlineprivate

Definition at line 210 of file MpiParallelMng.cc.

◆ communicator()

MPI_Comm Arcane::VariableSynchronizerMpiCommunicator::communicator ( ) const

inlineoverridevirtual

Retrieves the specific communicator from the topology.

This communicator should not be retained because it may be invalidated between two calls to compute().

Implements Arcane::IVariableSynchronizerMpiCommunicator.

Definition at line 144 of file MpiParallelMng.cc.

◆ compute()

void Arcane::VariableSynchronizerMpiCommunicator::compute ( VariableSynchronizer * var_syncer )

inlineoverridevirtual

Calculates the specific communicator.

Implements Arcane::IVariableSynchronizerMpiCommunicator.

Definition at line 148 of file MpiParallelMng.cc.

References ARCANE_FATAL, Arcane::VariableSynchronizer::communicatingRanks(), Arcane::MpiParallelMng::communicator(), Arcane::Array< T >::data(), and Arcane::ConstArrayView< T >::size().

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Member Data Documentation

◆ m_mpi_parallel_mng

MpiParallelMng* Arcane::VariableSynchronizerMpiCommunicator::m_mpi_parallel_mng = nullptr

private

Definition at line 205 of file MpiParallelMng.cc.

◆ m_topology_communicator

MPI_Comm Arcane::VariableSynchronizerMpiCommunicator::m_topology_communicator = MPI_COMM_NULL