multiLevelDecomp.H

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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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    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::multiLevelDecomp
 
Description
    Decomposition given using consecutive application of decomposers.
 
SourceFiles
    multiLevelDecomp.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef multiLevelDecomp_H
#define multiLevelDecomp_H
 
#include "decompositionMethod.H"
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                      Class multiLevelDecomp Declaration
\*---------------------------------------------------------------------------*/
 
class multiLevelDecomp
:
    public decompositionMethod
{
    // Private Data
 
        dictionary methodsDict_;
 
        PtrList<decompositionMethod> methods_;
 
 
    // Private Member Functions
 
        //- Given connectivity across processors work out connectivity
        //  for a (consistent) subset
        void subsetGlobalCellCells
        (
            const label nDomains,
            const label domainI,
            const labelList& dist,
 
            const labelListList& cellCells,
            const labelList& set,
            labelListList& subCellCells,
            labelList& cutConnections
        ) const;
 
        //- Decompose level methodI without addressing
        void decompose
        (
            const labelListList& pointPoints,
            const pointField& points,
            const scalarField& pointWeights,
            const labelList& pointMap,  // map back to original points
            const label levelI,
 
            labelField& finalDecomp
        );
 
 
public:
 
    //- Runtime type information
    TypeName("multiLevel");
 
 
    // Constructors
 
        //- Construct given the decomposition dictionary
        multiLevelDecomp(const dictionary& decompositionDict);
 
        //- Disallow default bitwise copy construction
        multiLevelDecomp(const multiLevelDecomp&) = delete;
 
 
    //- Destructor
    virtual ~multiLevelDecomp()
    {}
 
 
    // Member Functions
 
        //- Inherit decompose from decompositionMethod
        using decompositionMethod::decompose;
 
        //- Return for every coordinate the wanted processor number. Use the
        //  mesh connectivity (if needed)
        virtual labelList decompose
        (
            const polyMesh& mesh,
            const pointField& points,
            const scalarField& pointWeights
        );
 
        //- Return for every coordinate the wanted processor number. Explicitly
        //  provided connectivity - does not use mesh_.
        virtual labelList decompose
        (
            const labelListList& globalCellCells,
            const pointField& cc,
            const scalarField& cWeights
        );
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const multiLevelDecomp&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //