DistributedDelaunayMesh.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2012-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
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
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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::DistributedDelaunayMesh
 
Description
 
SourceFiles
    DistributedDelaunayMeshI.H
    DistributedDelaunayMesh.C
    DistributedDelaunayMeshIO.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef DistributedDelaunayMesh_H
#define DistributedDelaunayMesh_H
 
#include "DelaunayMesh.H"
#include "backgroundMeshDecomposition.H"
#include "autoPtr.H"
#include "boundBox.H"
#include "indexedVertex.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class mapDistribute;
 
/*---------------------------------------------------------------------------*\
                  Class DistributedDelaunayMesh Declaration
\*---------------------------------------------------------------------------*/
 
template<class Triangulation>
class DistributedDelaunayMesh
:
    public DelaunayMesh<Triangulation>
{
public:
 
        typedef typename Triangulation::Vertex_handle Vertex_handle;
        typedef typename Triangulation::Cell_handle   Cell_handle;
        typedef typename Triangulation::Point         Point;
 
        typedef typename Triangulation::Finite_vertices_iterator
            Finite_vertices_iterator;
        typedef typename Triangulation::Finite_cells_iterator
            Finite_cells_iterator;
        typedef typename Triangulation::All_cells_iterator
            All_cells_iterator;
 
private:
 
        autoPtr<List<boundBox>> allBackgroundMeshBounds_;
 
 
    // Private Member Functions
 
        //-
        bool distributeBoundBoxes(const boundBox& bb);
 
        //-
        bool isLocal(const Vertex_handle& v) const;
 
        bool isLocal(const label localProcIndex) const;
 
        labelList overlapProcessors
        (
            const point& centre,
            const scalar radiusSqr
        ) const;
 
        bool checkProcBoundaryCell
        (
            const Cell_handle& cit,
            Map<labelList>& circumsphereOverlaps
        ) const;
 
        void findProcessorBoundaryCells
        (
            Map<labelList>& circumsphereOverlaps
        ) const;
 
        void markVerticesToRefer
        (
            const Map<labelList>& circumsphereOverlaps,
            PtrList<labelPairHashSet>& referralVertices,
            DynamicList<label>& targetProcessor,
            DynamicList<Vb>& parallelInfluenceVertices
        );
 
        label referVertices
        (
            const labelUList& targetProcessor,
            DynamicList<Vb>& parallelVertices,
            PtrList<labelPairHashSet>& referralVertices,
            labelPairHashSet& receivedVertices
        );
 
        //- No copy construct
        DistributedDelaunayMesh
        (
            const DistributedDelaunayMesh&
        ) = delete;
 
        //- No copy assignment
        void operator=(const DistributedDelaunayMesh<Triangulation>&) = delete;
 
 
public:
 
    // Constructors
 
        //- Construct from components
        explicit DistributedDelaunayMesh(const Time& runTime);
 
        DistributedDelaunayMesh
        (
            const Time& runTime,
            const word& meshName
        );
 
 
    //- Destructor
    ~DistributedDelaunayMesh() = default;
 
 
    // Queries
 
        //- Use DelaunayMesh timeCheck function
        using DelaunayMesh<Triangulation>::timeCheck;
 
        scalar calculateLoadUnbalance() const;
 
 
    // Member Functions
 
        //- Build a mapDistribute for the supplied destination processor data
        static autoPtr<mapDistribute> buildMap(const labelUList& toProc);
 
        //-
        bool distribute(const boundBox& bb);
 
        autoPtr<mapDistribute> distribute
        (
            const backgroundMeshDecomposition& decomposition,
            List<Foam::point>& points
        );
 
        //- Refer vertices so that the processor interfaces are consistent
        void sync(const boundBox& bb);
 
        //- Refer vertices so that the processor interfaces are consistent
        void sync
        (
            const boundBox& bb,
            PtrList<labelPairHashSet>& referralVertices,
            labelPairHashSet& receivedVertices,
            bool iterateReferral = true
        );
 
        //- Inserts points into the triangulation if the point is within
        //  the circumsphere of another cell. Returns HashSet of failed
        //  point insertions
        template<class PointIterator>
        labelPairHashSet rangeInsertReferredWithInfo
        (
            PointIterator begin,
            PointIterator end,
            bool printErrors = true
        );
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
//#include "DistributedDelaunayMeshI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "DistributedDelaunayMesh.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //