a9ffcab5af
Within decomposeParDict, it is now possible to specify a different decomposition method, methods coefficients or number of subdomains for each region individually. The top-level numberOfSubdomains remains mandatory, since this specifies the number of domains for the entire simulation. The individual regions may use the same number or fewer domains. Any optional method coefficients can be specified in a general "coeffs" entry or a method-specific one, eg "metisCoeffs". For multiLevel, only the method-specific "multiLevelCoeffs" dictionary is used, and is also mandatory. ---- ENH: shortcut specification for multiLevel. In addition to the longer dictionary form, it is also possible to use a shorter notation for multiLevel decomposition when the same decomposition method applies to each level.
78 lines
2.4 KiB
C
78 lines
2.4 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) 2011-2016 OpenFOAM Foundation
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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
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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 "domainDecomposition.H"
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#include "decompositionMethod.H"
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#include "cpuTime.H"
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#include "cellSet.H"
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#include "regionSplit.H"
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#include "Tuple2.H"
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#include "faceSet.H"
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#include "decompositionModel.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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void Foam::domainDecomposition::distributeCells()
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{
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Info<< "\nCalculating distribution of cells" << endl;
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cpuTime decompositionTime;
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const decompositionModel& method = decompositionModel::New
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(
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*this,
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decompDictFile_
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);
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word weightName;
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scalarField cellWeights;
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if (method.readIfPresent("weightField", weightName))
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{
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volScalarField weights
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(
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IOobject
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(
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weightName,
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time().timeName(),
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*this,
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IOobject::MUST_READ,
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IOobject::NO_WRITE
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),
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*this
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);
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cellWeights = weights.primitiveField();
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}
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cellToProc_ = method.decomposer().decompose(*this, cellWeights);
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Info<< "\nFinished decomposition in "
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<< decompositionTime.elapsedCpuTime()
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<< " s" << endl;
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}
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// ************************************************************************* //
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