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ENH: use broadcasting Pstreams for one-to-all sends

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This commit is contained in:
Mark Olesen
2022-02-22 13:40:07 +01:00
committed by Andrew Heather
parent d37cb64efe
commit 1348cd7e7b
5 changed files with 93 additions and 131 deletions
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30
applications/utilities/parallelProcessing/redistributePar/loadOrCreateMesh.C
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@ -6,7 +6,7 @@
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2012-2017 OpenFOAM Foundation
Copyright (C) 2015-2021 OpenCFD Ltd.
Copyright (C) 2015-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -88,25 +88,23 @@ Foam::autoPtr<Foam::fvMesh> Foam::loadOrCreateMesh
);
Pstream::parRun(oldParRun);
}
// Send patches
for (const int slave : Pstream::subProcs())
if (Pstream::parRun())
{
if (Pstream::master())
{
OPstream toSlave(Pstream::commsTypes::scheduled, slave);
toSlave << patchEntries;
// Broadcast: send patches
OPBstream toAll(Pstream::masterNo());
toAll << patchEntries;
}
else
{
// Broadcast: receive patches
IPBstream fromMaster(Pstream::masterNo());
fromMaster >> patchEntries;
}
}
else
{
// Receive patches
IPstream fromMaster
(
Pstream::commsTypes::scheduled,
Pstream::masterNo()
);
fromMaster >> patchEntries;
}
// Dummy meshes