Skip to content
Snippets Groups Projects
Commit 51f501b6 authored by mattijs's avatar mattijs Committed by Andrew Heather
Browse files

ENH: decomposition: added 'random' method for testing.

This will use a random-number generator to select for
each cell the processor. Useful for testing parallel/non-parallel
consistent behaviour.
parent 4bbd0294
Branches
Tags
No related merge requests found
......@@ -6,6 +6,7 @@ manualDecomp/manualDecomp.C
multiLevelDecomp/multiLevelDecomp.C
metisLikeDecomp/metisLikeDecomp.C
structuredDecomp/structuredDecomp.C
randomDecomp/randomDecomp.C
noDecomp/noDecomp.C
......
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2019 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
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.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "randomDecomp.H"
#include "addToRunTimeSelectionTable.H"
#include "Random.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(randomDecomp, 0);
addToRunTimeSelectionTable
(
decompositionMethod,
randomDecomp,
dictionary
);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::randomDecomp::randomDecomp(const dictionary& decompositionDict)
:
decompositionMethod(decompositionDict)
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
Foam::labelList Foam::randomDecomp::decompose
(
const polyMesh& mesh,
const pointField& points,
const scalarField& pointWeights
) const
{
Random rndGen(0);
labelList finalDecomp(mesh.nCells());
forAll(finalDecomp, celli)
{
finalDecomp[celli] = rndGen.position<label>(0, nDomains_ - 1);
}
return finalDecomp;
}
Foam::labelList Foam::randomDecomp::decompose
(
const labelListList& globalCellCells,
const pointField&,
const scalarField&
) const
{
Random rndGen(0);
labelList finalDecomp(globalCellCells.size());
forAll(finalDecomp, celli)
{
finalDecomp[celli] = rndGen.position<label>(0, nDomains_ - 1);
}
return finalDecomp;
}
// ************************************************************************* //
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2019 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
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.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::randomDecomp
Description
Decomposition according to pseudo-random number generator.
SourceFiles
randomDecomp.C
\*---------------------------------------------------------------------------*/
#ifndef randomDecomp_H
#define randomDecomp_H
#include "decompositionMethod.H"
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class randomDecomp Declaration
\*---------------------------------------------------------------------------*/
class randomDecomp
:
public decompositionMethod
{
// Private Member Functions
//- Disallow default bitwise copy construct and assignment
void operator=(const randomDecomp&);
randomDecomp(const randomDecomp&);
public:
//- Runtime type information
TypeName("random");
// Constructors
//- Construct given the decomposition dictionary
randomDecomp(const dictionary& decompositionDict);
//- Destructor
virtual ~randomDecomp()
{}
// Member Functions
//- Manual decompose does not care about proc boundaries - is all
// up to the user.
virtual bool parallelAware() const
{
return true;
}
//- Return for every coordinate the wanted processor number. Use the
// mesh connectivity (if needed)
virtual labelList decompose
(
const polyMesh& mesh,
const pointField& cc,
const scalarField& cWeights
) const;
//- Return for every coordinate the wanted processor number. Explicitly
// provided connectivity - does not use mesh_.
// The connectivity is equal to mesh.cellCells() except for
// - in parallel the cell numbers are global cell numbers (starting
// from 0 at processor0 and then incrementing all through the
// processors)
// - the connections are across coupled patches
virtual labelList decompose
(
const labelListList& globalCellCells,
const pointField& cc,
const scalarField& cWeights
) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment