142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Description
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Write primitive and binary block from OPstream
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\*---------------------------------------------------------------------------*/
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#include "mpi.h"
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#include "OPstream.H"
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#include "PstreamGlobals.H"
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::OPstream::~OPstream()
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{
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if (commsType_ == nonBlocking)
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{
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// alloc nonBlocking only if empty buffer. This denotes the buffer
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// having been transfered out.
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if (bufPosition_ > 0)
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{
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FatalErrorIn("OPstream::~OPstream()")
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<< "OPstream contains buffer so cannot be used with nonBlocking"
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<< " since destructor would destroy buffer whilst possibly"
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<< " still sending." << Foam::abort(FatalError);
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}
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}
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else
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{
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if
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(
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!write
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(
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commsType_,
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toProcNo_,
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buf_.begin(),
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bufPosition_
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)
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)
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{
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FatalErrorIn("OPstream::~OPstream()")
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<< "MPI cannot send outgoing message"
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<< Foam::abort(FatalError);
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}
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}
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::OPstream::write
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(
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const commsTypes commsType,
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const int toProcNo,
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const char* buf,
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const std::streamsize bufSize
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)
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{
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bool transferFailed = true;
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if (commsType == blocking)
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{
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transferFailed = MPI_Bsend
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(
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const_cast<char*>(buf),
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bufSize,
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MPI_PACKED,
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procID(toProcNo),
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msgType(),
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MPI_COMM_WORLD
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);
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}
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else if (commsType == scheduled)
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{
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transferFailed = MPI_Send
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(
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const_cast<char*>(buf),
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bufSize,
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MPI_PACKED,
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procID(toProcNo),
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msgType(),
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MPI_COMM_WORLD
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);
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}
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else if (commsType == nonBlocking)
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{
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MPI_Request request;
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transferFailed = MPI_Isend
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(
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const_cast<char*>(buf),
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bufSize,
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MPI_PACKED,
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procID(toProcNo),
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msgType(),
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MPI_COMM_WORLD,
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&request
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);
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PstreamGlobals::outstandingRequests_.append(request);
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}
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else
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{
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FatalErrorIn
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(
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"OPstream::write"
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"(const int fromProcNo, char* buf, std::streamsize bufSize)"
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) << "Unsupported communications type " << commsType
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<< Foam::abort(FatalError);
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}
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return !transferFailed;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// ************************************************************************* //
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