parLagrangianDistributor.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2015 OpenFOAM Foundation
    Copyright (C) 2018-2023 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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    the Free Software Foundation, either version 3 of the License, or
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    You should have received a copy of the GNU General Public License
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Class
    Foam::parLagrangianDistributor

Description
    Lagrangian field redistributor.

    Runs in parallel. Redistributes from fromMesh to toMesh.

SourceFiles
    parLagrangianDistributor.cxx
    parLagrangianDistributor.txx
    parLagrangianDistributorFields.cxx

\*---------------------------------------------------------------------------*/

#ifndef Foam_parLagrangianDistributor_H
#define Foam_parLagrangianDistributor_H

#include "fvMesh.H"

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

namespace Foam
{

// Forward Declarations
class mapDistributePolyMesh;
class mapDistributeBase;
class IOobjectList;
class passivePositionParticleCloud;

/*---------------------------------------------------------------------------*\
                    Class parLagrangianDistributor Declaration
\*---------------------------------------------------------------------------*/

class parLagrangianDistributor
{
    // Private Data

        //- Source mesh reference
        const fvMesh& srcMesh_;

        //- Destination mesh reference
        const fvMesh& tgtMesh_;

        //- Distribution map reference
        const mapDistributePolyMesh& distMap_;

        //- For every src cell the target processor
        labelList destinationProcID_;

        //- For every src cell the target cell
        labelList destinationCell_;


public:

    //- Output verbosity when writing
    static int verbose_;


    // Generated Methods

        //- No copy construct
        parLagrangianDistributor(const parLagrangianDistributor&) = delete;

        //- No copy assignment
        void operator=(const parLagrangianDistributor&) = delete;


    // Constructors

        //- Construct from components
        parLagrangianDistributor
        (
            const fvMesh& srcMesh,
            const fvMesh& tgtMesh,
            const label nOldCells,
            const mapDistributePolyMesh& distMap
        );


    // Static Functions

        //- Find all clouds (on all processors) and for each cloud all
        //- the objects. Result will be synchronised on all processors
        static void findClouds
        (
            const fvMesh&,

            wordList& cloudNames,

            boolList& haveClouds,

            List<wordList>& objectNames
        );

        //- Pick up any fields of a given type
        template<class Type>
        static wordList filterObjects
        (
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        );

        //- Read and store all fields of a cloud
        template<class Container>
        static label readFields
        (
            const passivePositionParticleCloud& cloud,
            const bool haveCloud,
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        );

        //- Read and store all fields for known cloud field types
        static label readAllFields
        (
            const passivePositionParticleCloud& cloud,
            const bool haveCloud,
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        );


    // Member Functions

        //- The source mesh
        const fvMesh& sourceMesh() const noexcept { return srcMesh_; }

        //- The destination mesh
        const fvMesh& targetMesh() const noexcept { return tgtMesh_; }

        //- Redistribute and write lagrangian positions
        autoPtr<mapDistributeBase> distributeLagrangianPositions
        (
            passivePositionParticleCloud& cloud
        ) const;

        //- Read, redistribute and write lagrangian positions
        autoPtr<mapDistributeBase> distributeLagrangianPositions
        (
            const word& cloudName
        ) const;

        //- Redistribute all fields for known cloud field types
        label distributeAllFields
        (
            const mapDistributeBase& lagrangianMap,
            const word& cloudName,
            const bool haveCloud,
            const IOobjectList& cloudObjs,
            const wordRes& selectedFields
        ) const;

        //- Redistribute and write all stored lagrangian fields
        label distributeAllStoredFields
        (
            const mapDistributeBase& lagrangianMap,
            passivePositionParticleCloud& cloud
        ) const;


        //- Read, redistribute and write all/selected lagrangian fields
        template<class Type>
        label distributeFields
        (
            const mapDistributeBase& map,
            const word& cloudName,
            const bool haveCloud,
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        ) const;

        //- Read, redistribute and write all/selected lagrangian fieldFields
        template<class Type>
        label distributeFieldFields
        (
            const mapDistributeBase& map,
            const word& cloudName,
            const bool haveCloud,
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        ) const;

        //- Redistribute and write stored lagrangian fields.
        //  Note: does no reading so no need to check for existence
        //  of lagrangian files
        template<class Container>
        label distributeStoredFields
        (
            const mapDistributeBase& map,
            passivePositionParticleCloud& cloud
        ) const;
};


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

} // End namespace Foam

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

#ifdef NoRepository
#   include "parLagrangianDistributor.txx"
#endif

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

#endif

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