e11fde900c
- the internal data are contiguous so can broadcast size and internals directly without an intermediate stream. ENH: split out broadcast time for profilingPstream information STYLE: minor Pstream cleanup - UPstream::commsType_ from protected to private, since it already has inlined noexcept getters/setters that should be used. - don't pass unused/unneed tag into low-level MPI reduction templates. Document where tags are not needed - had Pstream::broadcast instead of UPstream::broadcast in internals
87 lines
2.6 KiB
C
87 lines
2.6 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 | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2022 OpenCFD Ltd.
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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
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the Free Software Foundation, either version 3 of the License, or
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(at your 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, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "UPstream.H"
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#include "PstreamGlobals.H"
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#include "profilingPstream.H"
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#include <mpi.h>
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::UPstream::broadcast
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(
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char* buf,
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const std::streamsize bufSize,
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const label communicator,
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const int rootProcNo
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)
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{
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if (!UPstream::parRun() || UPstream::nProcs(communicator) < 2)
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{
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// Nothing to do - ignore
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return true;
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}
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//Needed? PstreamGlobals::checkCommunicator(communicator, rootProcNo);
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if (debug)
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{
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Pout<< "UPstream::broadcast : root:" << rootProcNo
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<< " comm:" << communicator
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<< " size:" << label(bufSize)
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<< Foam::endl;
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}
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if (UPstream::warnComm != -1 && communicator != UPstream::warnComm)
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{
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Pout<< "UPstream::broadcast : root:" << rootProcNo
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<< " comm:" << communicator
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<< " size:" << label(bufSize)
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<< " warnComm:" << UPstream::warnComm
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<< Foam::endl;
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error::printStack(Pout);
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}
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profilingPstream::beginTiming();
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bool failed = MPI_Bcast
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(
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buf,
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bufSize,
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MPI_BYTE,
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rootProcNo,
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PstreamGlobals::MPICommunicators_[communicator]
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);
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profilingPstream::addBroadcastTime();
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return !failed;
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}
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// ************************************************************************* //
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