processorTopology.H

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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
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Class
    Foam::ProcessorTopology
 
Description
    Determines processor-processor connection. After instantiation contains
    on all processors the processor-processor connection table.
 
    TODO: This does not currently correctly support multiple processor
    patches connecting two processors.
 
SourceFiles
    ProcessorTopology.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef processorTopology_H
#define processorTopology_H
 
#include "labelList.H"
#include "lduSchedule.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of friend functions and operators
 
class polyBoundaryMesh;
 
/*---------------------------------------------------------------------------*\
                      Class processorTopology Declaration
\*---------------------------------------------------------------------------*/
 
class processorTopology
{
    // Private Data
 
        //- Processor-processor connection table
        labelListList procNbrProcs_;
 
        //- Local map from neighbour proc to patchi. Different per processor!
        //  -1 or patchi for connection to procID
        labelList procPatchMap_;
 
        //- Order in which the patches should be initialised/evaluated
        //  corresponding to the schedule
        lduSchedule patchSchedule_;
 
 
    // Private Member Functions
 
        //- Return all neighbouring processors of this processor. Set
        //  procPatchMap_.
        labelList procNeighbours(const label nProcs, const polyBoundaryMesh&);
 
        //- Calculate non-blocking (i.e. unscheduled) schedule
        lduSchedule nonBlockingSchedule(const polyBoundaryMesh& patches);
 
 
public:
 
    // Constructors
 
        //- Construct from boundaryMesh
        processorTopology(const polyBoundaryMesh& patches, const label comm);
 
 
    // Member Functions
 
        //- Return the processor-processor connection table
        const labelListList& procNbrProcs() const
        {
            return procNbrProcs_;
        }
 
        //- Order in which the patches should be initialised/evaluated
        //  corresponding to the schedule
        const lduSchedule& patchSchedule() const
        {
            return patchSchedule_;
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //