Foam::PstreamGlobals Namespace Reference

Global functions and variables for working with parallel streams, but principally for mpi. More...

Functions
void	checkCommunicator (const label comm, const label toProcNo)
	Fatal if comm is outside the allocated range. More...
label	push_request (MPI_Request request)
	Reuse previously freed request locations or push request onto list of outstanding requests. More...

Variables
DynamicList< MPI_Request >	outstandingRequests_
	Outstanding non-blocking operations. More...
DynamicList< label >	freedRequests_
int	nTags_ = 0
	Max outstanding message tag operations. More...
DynamicList< int >	freedTags_
	Free'd message tags. More...
DynamicList< MPI_Comm >	MPICommunicators_
DynamicList< MPI_Group >	MPIGroups_

Detailed Description

Global functions and variables for working with parallel streams, but principally for mpi.

Source files

• PstreamGlobals.H
• PstreamGlobals.C

Function Documentation

checkCommunicator()

void checkCommunicator	(	const label	comm,
		const label	toProcNo
	)

Fatal if comm is outside the allocated range.

Definition at line 39 of file PstreamGlobals.C.

References Foam::abort(), Foam::FatalError, FatalErrorInFunction, MPICommunicators_, and Foam::nl.

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push_request()

label Foam::PstreamGlobals::push_request ( MPI_Request  request )

inline

Reuse previously freed request locations or push request onto list of outstanding requests.

Returns

index of request within outstandingRequests_

Definition at line 86 of file PstreamGlobals.H.

References UList< T >::back(), freedRequests_, outstandingRequests_, DynamicList< T, SizeMin >::pop_back(), and UList< T >::size().

Referenced by Foam::PstreamDetail::allReduce(), Foam::PstreamDetail::allToAll(), Foam::PstreamDetail::allToAllv(), Foam::PstreamDetail::gather(), Foam::PstreamDetail::gatherv(), Foam::PstreamDetail::scatter(), and Foam::PstreamDetail::scatterv().

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Variable Documentation

outstandingRequests_

Foam::DynamicList< MPI_Request > outstandingRequests_

Outstanding non-blocking operations.

Definition at line 25 of file PstreamGlobals.C.

Referenced by push_request().

freedRequests_

Foam::DynamicList< Foam::label > freedRequests_

Definition at line 26 of file PstreamGlobals.C.

Referenced by push_request().

nTags_

int nTags_ = 0

Max outstanding message tag operations.

Definition at line 28 of file PstreamGlobals.C.

Referenced by UPstream::allocateTag().

freedTags_

Foam::DynamicList< int > freedTags_

Free'd message tags.

Definition at line 30 of file PstreamGlobals.C.

Referenced by UPstream::allocateTag(), and UPstream::freeTag().

MPICommunicators_

Foam::DynamicList< MPI_Comm > MPICommunicators_

Definition at line 32 of file PstreamGlobals.C.

Referenced by Foam::PstreamDetail::allReduce(), Foam::PstreamDetail::allToAll(), Foam::PstreamDetail::allToAllv(), Foam::PstreamDetail::broadcast0(), checkCommunicator(), Foam::PstreamDetail::gather(), Foam::PstreamDetail::gatherv(), Foam::PstreamDetail::reduce0(), Foam::PstreamDetail::scatter(), and Foam::PstreamDetail::scatterv().

MPIGroups_

Foam::DynamicList< MPI_Group > MPIGroups_

Definition at line 33 of file PstreamGlobals.C.