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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2018 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Description
Write primitive and binary block from OPstream
\*---------------------------------------------------------------------------*/
#include "UOPstream.H"
#include "PstreamGlobals.H"
#include <mpi.h>
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::UOPstream::write
(
const commsTypes commsType,
const int toProcNo,
const char* buf,
const std::streamsize bufSize,
const int tag,
const label communicator
)
{
if (debug)
{
Pout<< "UOPstream::write : starting write to:" << toProcNo
<< " tag:" << tag
<< " comm:" << communicator << " size:" << label(bufSize)
<< " commsType:" << UPstream::commsTypeNames[commsType]
<< Foam::endl;
}
if (UPstream::warnComm != -1 && communicator != UPstream::warnComm)
{
Pout<< "UOPstream::write : starting write to:" << toProcNo
<< " tag:" << tag
<< " comm:" << communicator << " size:" << label(bufSize)
<< " commsType:" << UPstream::commsTypeNames[commsType]
<< " warnComm:" << UPstream::warnComm
<< Foam::endl;
error::printStack(Pout);
}
PstreamGlobals::checkCommunicator(communicator, toProcNo);
bool transferFailed = true;
if (commsType == commsTypes::blocking)
{
transferFailed = MPI_Bsend
(
const_cast<char*>(buf),
bufSize,
MPI_BYTE,
toProcNo, // procID(toProcNo),
tag,
PstreamGlobals::MPICommunicators_[communicator]
);
if (debug)
{
Pout<< "UOPstream::write : finished write to:" << toProcNo
<< " tag:" << tag << " size:" << label(bufSize)
<< " commsType:" << UPstream::commsTypeNames[commsType]
<< Foam::endl;
}
}
else if (commsType == commsTypes::scheduled)
{
transferFailed = MPI_Send
(
const_cast<char*>(buf),
bufSize,
MPI_BYTE,
toProcNo, // procID(toProcNo),
tag,
PstreamGlobals::MPICommunicators_[communicator]
);
if (debug)
{
Pout<< "UOPstream::write : finished write to:" << toProcNo
<< " tag:" << tag << " size:" << label(bufSize)
<< " commsType:" << UPstream::commsTypeNames[commsType]
<< Foam::endl;
}
}
else if (commsType == commsTypes::nonBlocking)
{
MPI_Request request;
transferFailed = MPI_Isend
(
const_cast<char*>(buf),
bufSize,
MPI_BYTE,
toProcNo, // procID(toProcNo),
tag,
PstreamGlobals::MPICommunicators_[communicator],
&request
);
if (debug)
{
Pout<< "UOPstream::write : started write to:" << toProcNo
<< " tag:" << tag << " size:" << label(bufSize)
<< " commsType:" << UPstream::commsTypeNames[commsType]
<< " request:" << PstreamGlobals::outstandingRequests_.size()
<< Foam::endl;
}
PstreamGlobals::outstandingRequests_.append(request);
}
else
{
FatalErrorInFunction
<< "Unsupported communications type "
<< UPstream::commsTypeNames[commsType]
<< Foam::abort(FatalError);
}
return !transferFailed;
}
// ************************************************************************* //
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