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...

void	reset_request (UPstream::Request requestPtr, label requestIdx=nullptr)
	Reset UPstream::Request to null and/or the index of the outstanding request to -1. More...

void	push_request (MPI_Request request, UPstream::Request requestPtr=nullptr, label requestIdx=nullptr)
	Transcribe MPI_Request to UPstream::Request (does not affect the stack of outstanding requests) or else push onto list of outstanding requests and (optionally) record its location. More...

Variables
DynamicList< bool >	pendingMPIFree_

DynamicList< MPI_Comm >	MPICommunicators_

DynamicList< MPI_Request >	outstandingRequests_
	Outstanding non-blocking operations. More...

Detailed Description

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

Source files

Function Documentation

◆ checkCommunicator()

void checkCommunicator	(	const label	comm,
		const label	toProcNo
	)

Fatal if comm is outside the allocated range.

Definition at line 34 of file PstreamGlobals.C.

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

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◆ reset_request()

void Foam::PstreamGlobals::reset_request	(	UPstream::Request *	requestPtr,
		label *	requestIdx = `nullptr`
	)

inline

Reset UPstream::Request to null and/or the index of the outstanding request to -1.

Does not affect the stack of outstanding requests.

Definition at line 85 of file PstreamGlobals.H.

Referenced by UPstream_mpi_receive().

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◆ push_request()

void Foam::PstreamGlobals::push_request	(	MPI_Request	request,
		UPstream::Request *	requestPtr = `nullptr`,
		label *	requestIdx = `nullptr`
	)

inline

Transcribe MPI_Request to UPstream::Request (does not affect the stack of outstanding requests) or else push onto list of outstanding requests and (optionally) record its location.

Definition at line 102 of file PstreamGlobals.H.

References outstandingRequests_.

Referenced by UPstream_mpi_receive().

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