Arcane::MessagePassing::IMessagePassingMng Class Reference

Interface of the message passing manager. More...

#include <arccore/message_passing/IMessagePassingMng.h>

Public Member Functions
virtual Int32	commRank () const =0
	Rank of this instance in the communicator.
virtual Int32	commSize () const =0
	Number of instances in the communicator.
virtual ITimeMetricCollector *	timeMetricCollector () const =0
	Interface for collecting execution times (can be null).
virtual Communicator	communicator () const
	MPI communicator associated with this instance.
virtual IDispatchers *	dispatchers ()=0

Friends
void	mpDelete (IMessagePassingMng *p)
	Destroys the message passing instance p.

Detailed Description

Interface of the message passing manager.

This class uses a semantic by reference and instances are automatically destroyed when needed.

Most of the operations on this class use free functions (like mpSend() or mpReceive()) which are defined in file 'Messages.h'.

Arcane provides several implementation for message passing, using MPI, shared memory message passing or hybrid (MPI + shared memory) message passing. When using MPI, it is possible to create an instance of this class using the class StandaloneMpiMessagePassingMng.

Definition at line 53 of file IMessagePassingMng.h.

Member Function Documentation

commRank()

virtual Int32 Arcane::MessagePassing::IMessagePassingMng::commRank ( ) const

pure virtual

Rank of this instance in the communicator.

Implemented in Arcane::MessagePassing::MessagePassingMng, Arcane::ParallelMngDispatcher, and Arccore::MessagePassing::MessagePassingMng.

Referenced by Arcane::MessagePassing::mpCreateSerializeMessage(), and Arcane::MessagePassing::mpCreateSerializeMessage().

commSize()

virtual Int32 Arcane::MessagePassing::IMessagePassingMng::commSize ( ) const

pure virtual

Number of instances in the communicator.

Implemented in Arcane::MessagePassing::MessagePassingMng, Arcane::ParallelMngDispatcher, and Arccore::MessagePassing::MessagePassingMng.

communicator()

Communicator Arcane::MessagePassing::IMessagePassingMng::communicator ( ) const

virtual

MPI communicator associated with this instance.

The communicator is only valid if the instance is associated with an MPI implementation. You can convert a communicator to a MPI communicator using helper methods toMpiCommunicator() and fillMpiCommunicatorIfValid() or like that:

IMessagePassingMng* mpm = ...;
Communicator comm = mpm->communicator();
if (comm.isValid())
  MPI_Comm mpi_comm = static_cast<MPI_Comm>(comm).

Reimplemented in Arcane::MessagePassing::MessagePassingMng, Arcane::ParallelMngDispatcher, and Arccore::MessagePassing::MessagePassingMng.

Definition at line 89 of file MessagePassingMng.cc.

Referenced by Arcane::MessagePassing::fillMpiCommunicatorIfValid(), timeMetricCollector(), and Arcane::MessagePassing::toMpiCommunicator().

timeMetricCollector()

virtual ITimeMetricCollector * Arcane::MessagePassing::IMessagePassingMng::timeMetricCollector ( ) const

pure virtual

Interface for collecting execution times (can be null).

Implemented in Arcane::MessagePassing::MessagePassingMng, Arcane::ParallelMngDispatcher, and Arccore::MessagePassing::MessagePassingMng.

References communicator().

Friends And Related Symbol Documentation

mpDelete

void mpDelete ( IMessagePassingMng * p )

friend

Destroys the message passing instance p.

Warning

This should only be used when using deprecated functions which do not return instances of Ref<IMessagePassingMng> and instead only return a IMessagePassingMng*.

Definition at line 81 of file MessagePassingMng.cc.

References mpDelete.

Referenced by mpDelete.

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

• IMessagePassingMng.h
• MessagePassingMng.cc