98246a438e
- combined most of the unweighted and weighted decomposition routines such that an empty weight field is treated as uniform weighting. This allows default parameters and cuts down on the number of decompose methods. - for topology-driven decomposition, it is now possible to pass in the owner/neighbour connectivity as a CompactListList directly instead of first creating a labelListList (which was internally repacked into a CompactListList in many cases). However, multiLevelDecomp still uses unpacking (to avoid a larger reworking of code). - support direct creation of some methods (eg, random, scotch etc) without a dictionary - fix incorrect neighbour face weighting (fixes #3019) ENH: relocate calcCellCells from decompositionMethod to globalMeshData - makes it more universally available
158 lines
4.2 KiB
C
158 lines
4.2 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) 2017-2023 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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Application
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checkDecomposePar
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Group
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grpParallelUtilities
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Description
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Check decomposition from kaffpa (KaHIP) output.
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foamToMetisGraph was likely used for producing the kaffpa input.
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\*---------------------------------------------------------------------------*/
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#include "OSspecific.H"
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#include "fvCFD.H"
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#include "cpuTime.H"
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#include "IFstream.H"
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#include "regionProperties.H"
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#include "globalMeshData.H"
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#include "decompositionInformation.H"
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#include "decompositionModel.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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argList::addNote
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(
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"Check decomposition from kaffpa (KaHIP) output"
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);
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argList::noParallel();
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argList::noBanner();
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#include "addAllRegionOptions.H"
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argList::addVerboseOption
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(
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"more information about decomposition"
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);
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argList::addArgument("kaffpa-output-file");
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// Include explicit constant options, have zero from time range
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timeSelector::addOptions(true, false);
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#include "setRootCase.H"
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const auto decompFile = args.get<fileName>(1);
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// Set time from database
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#include "createTime.H"
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// Allow override of time
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instantList times = timeSelector::selectIfPresent(runTime, args);
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// Allow override of decomposeParDict location
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const fileName decompDictFile =
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args.getOrDefault<fileName>("decomposeParDict", "");
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// Get region names
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#include "getAllRegionOptions.H"
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labelList cellToProc;
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forAll(regionNames, regioni)
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{
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const word& regionName = regionNames[regioni];
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// const word& regionDir = polyMesh::regionName(regionName);
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Info<< "\n\nDecomposing mesh " << regionName << nl << endl;
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Info<< "Create mesh..." << flush;
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fvMesh mesh
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(
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IOobject
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(
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regionName,
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runTime.timeName(),
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runTime,
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IOobject::MUST_READ,
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IOobject::NO_WRITE,
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IOobject::NO_REGISTER
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)
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);
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Info<< " nCells = " << mesh.nCells() << endl;
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// Expected format is a simple ASCII list
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cellToProc.setSize(mesh.nCells());
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{
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IFstream is(decompFile);
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forAll(cellToProc, celli)
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{
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cellToProc[celli] = readLabel(is);
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}
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}
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const label nDomains = max(cellToProc) + 1;
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CompactListList<label> cellCells;
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globalMeshData::calcCellCells
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(
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mesh,
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identity(mesh.nCells()),
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mesh.nCells(),
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false,
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cellCells
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);
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decompositionInformation info
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(
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cellCells,
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cellToProc,
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nDomains
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);
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if (args.verbose())
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{
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info.printDetails(Info);
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Info<< nl;
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}
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info.printSummary(Info);
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}
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Info<< "\nEnd\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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