MPIDefaultAllToAllCommunicator Class Reference

A specialization of MPIAllToAllCommunicator which implements the all-to-all exchange algorithm which uses the MPI_Alltoallv function for the exchange. More...

#include <MPIDefaultAllToAllCommunicator.h>

Inheritance diagram for MPIDefaultAllToAllCommunicator:

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Collaboration diagram for MPIDefaultAllToAllCommunicator:

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List of all members.

Public Member Functions
	MPIDefaultAllToAllCommunicator (MPIInputBufferVector &mpiInputBuffers, MPIOutputBufferVector &mpiOutputBuffers, MPI::Intracomm &comm, vector< bool > &incomingConnections, vector< bool > &outgoingConnections)
	Constructor.
virtual	~MPIDefaultAllToAllCommunicator ()
virtual void	doExchangeAlgorithm ()
	The actual implementation of the exchange algorithm.
virtual void	prepare ()
	Setup of the needstosend and needstoreceive flags at the beginning of the all-to-all exchange procedure.

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Detailed Description

A specialization of MPIAllToAllCommunicator which implements the all-to-all exchange algorithm which uses the MPI_Alltoallv function for the exchange.

Definition at line 9 of file MPIDefaultAllToAllCommunicator.h.

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Constructor & Destructor Documentation

MPIDefaultAllToAllCommunicator::MPIDefaultAllToAllCommunicator	(	MPIInputBufferVector &	mpiInputBuffers,
		MPIOutputBufferVector &	mpiOutputBuffers,
		MPI::Intracomm &	comm,
		vector< bool > &	incomingConnections,
		vector< bool > &	outgoingConnections
	)

Constructor.

Definition at line 13 of file MPIDefaultAllToAllCommunicator.cpp.

References MPIAllToAllCommunicator::needsToReceive, and MPIAllToAllCommunicator::needsToSend.

virtual MPIDefaultAllToAllCommunicator::~MPIDefaultAllToAllCommunicator

(

)

[inline, virtual]

Definition at line 19 of file MPIDefaultAllToAllCommunicator.h.

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Member Function Documentation

void MPIDefaultAllToAllCommunicator::doExchangeAlgorithm

(

)

[virtual]

The actual implementation of the exchange algorithm.

It just invokes the Alltoallv function with proper arguments.

Implements MPIAllToAllCommunicator.

Definition at line 36 of file MPIDefaultAllToAllCommunicator.cpp.

References MPIExchangeBlocksInfo::counts, MPIExchangeBlocksInfo::datatypes, MPIExchangeBlocksInfo::displs, MPIInputBufferVector::getBaseBufferPtr(), MPIOutputBufferVector::getBaseBufferPtr(), MPIOutputBufferVector::getMPIExchangeBlocksInfo(), MPIInputBufferVector::getMPIExchangeBlocksInfo(), MPIAllToAllCommunicator::hasNextToSend, MPIAllToAllCommunicator::inputBuffers, MPIAllToAllCommunicator::mpi_comm, MPIAllToAllCommunicator::outputBuffers, and MPIOutputBufferVector::setFinishedFlag().

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void MPIDefaultAllToAllCommunicator::prepare

(

)

[virtual]

Setup of the needstosend and needstoreceive flags at the beginning of the all-to-all exchange procedure.

Implements MPIAllToAllCommunicator.

Definition at line 25 of file MPIDefaultAllToAllCommunicator.cpp.

References MPIAllToAllCommunicator::hasNextToSend, MPIAllToAllCommunicator::mpi_comm, MPIAllToAllCommunicator::needsToReceive, and MPIAllToAllCommunicator::needsToSend.

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

• /home/tnatschl/PCSIM-Sandbox/pcsim/pcsim/simcore/MPIDefaultAllToAllCommunicator.h
• /home/tnatschl/PCSIM-Sandbox/pcsim/pcsim/simcore/MPIDefaultAllToAllCommunicator.cpp