domainDecompositionDistribute.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
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    Copyright (C) 2011-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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    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.

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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

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#include "domainDecomposition.H"
#include "cpuTime.H"
#include "decompositionMethod.H"
#include "decompositionModel.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

void Foam::domainDecomposition::distributeCells()
{
    Info<< "\nCalculating distribution of cells" << endl;

    cpuTime decompositionTime;

    const auto& model = decompositionModel::New(*this, decompDictFile_);

    const auto& decomposer = model.decomposer();

    scalarField cellWeights;
    if (word name; model.readIfPresent("weightField", name))
    {
        volScalarField weights
        (
            IOobject
            (
                name,
                time().timeName(),
                *this,
                IOobjectOption::MUST_READ,
                IOobjectOption::NO_WRITE,
                IOobjectOption::NO_REGISTER
            ),
            *this
        );
        cellWeights = std::move(weights.primitiveFieldRef(false));
    }

    cellToProc_ = decomposer.decompose(*this, cellWeights);

    Info<< "\nFinished decomposition in "
        << decompositionTime.elapsedCpuTime()
        << " s" << endl;
}


// ************************************************************************* //