simpleGeomDecomp.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011 OpenFOAM Foundation
    Copyright (C) 2018-2021 OpenCFD Ltd.
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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.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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    You should have received a copy of the GNU General Public License
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Class
    Foam::simpleGeomDecomp
 
Description
    Simple geometric decomposition, selectable as \c simple
 
    Method coefficients:
    \table
        Property  | Description                             | Required | Default
        n         | (nx ny nz)                              | yes |
        order     | order of operation (unused)             | no  | xyz
        delta     | delta (jitter) for rotation matrix      | no  | 0.001
        transform | cartesian coordinate transformation     | no  |
    \endtable
 
SourceFiles
    simpleGeomDecomp.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef simpleGeomDecomp_H
#define simpleGeomDecomp_H
 
#include "geomDecomp.H"
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                      Class simpleGeomDecomp Declaration
\*---------------------------------------------------------------------------*/
 
class simpleGeomDecomp
:
    public geomDecomp
{
    // Private Member Functions
 
        static void assignToProcessorGroup
        (
            labelList& processorGroup,
            const label nProcGroup
        );
 
        static void assignToProcessorGroup
        (
            labelList& processorGroup,
            const label nProcGroup,
            const labelList& indices,
            const scalarField& weights,
            const scalar summedWeights
        );
 
        labelList decomposeOneProc(const pointField& points) const;
 
        labelList decomposeOneProc
        (
            const pointField& points,
            const scalarField& weights
        ) const;
 
 
public:
 
    //- No copy construct
    void operator=(const simpleGeomDecomp&) = delete;
 
    //- No copy assignment
    simpleGeomDecomp(const simpleGeomDecomp&) = delete;
 
    //- Runtime type information
    TypeName("simple");
 
 
    // Constructors
 
        //- Construct given decomposition dictionary and optional region name
        explicit simpleGeomDecomp
        (
            const dictionary& decompDict,
            const word& regionName = ""
        );
 
 
    //- Destructor
    virtual ~simpleGeomDecomp() = default;
 
 
    // Member Functions
 
        //- Simple sends all points to the master for decomposition.
        virtual bool parallelAware() const
        {
            return true;
        }
 
        //- Decompose with uniform weights.
        virtual labelList decompose(const pointField& points) const;
 
        //- Return for every coordinate the wanted processor number.
        virtual labelList decompose
        (
            const pointField& points,
            const scalarField& weights
        ) const;
 
        //- Decompose with uniform weights.
        virtual labelList decompose
        (
            const polyMesh& mesh,
            const pointField& points
        ) const
        {
            checkDecompositionDirections(mesh.geometricD());
            return decompose(points);
        }
 
        //- Return for every coordinate the wanted processor number.
        virtual labelList decompose
        (
            const polyMesh& mesh,
            const pointField& points,
            const scalarField& weights
        ) const
        {
            checkDecompositionDirections(mesh.geometricD());
            return decompose(points, weights);
        }
 
        //- Explicitly provided connectivity
        virtual labelList decompose
        (
            const labelListList& globalCellCells,  // unused
            const pointField& cc,
            const scalarField& cWeights
        ) const
        {
            return decompose(cc, cWeights);
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //