fvFieldDecomposerDecomposeFields.C

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#include "fvFieldDecomposer.H"
#include <finiteVolume/processorFvPatchField.H>
#include <finiteVolume/processorFvsPatchField.H>

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

namespace Foam
{

// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

template<class Type>
tmp<GeometricField<Type, fvPatchField, volMesh> >
fvFieldDecomposer::decomposeField
(
    const GeometricField<Type, fvPatchField, volMesh>& field
) const
{
    // Create and map the internal field values
    Field<Type> internalField(field.internalField(), cellAddressing_);

    // Create and map the patch field values
    PtrList<fvPatchField<Type> > patchFields(boundaryAddressing_.size());

    forAll (boundaryAddressing_, patchi)
    {
        if (boundaryAddressing_[patchi] >= 0)
        {
            patchFields.set
            (
                patchi,
                fvPatchField<Type>::New
                (
                    field.boundaryField()[boundaryAddressing_[patchi]],
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, volMesh>::null(),
                    *patchFieldDecomposerPtrs_[patchi]
                )
            );
        }
        else
        {
            patchFields.set
            (
                patchi,
                new processorFvPatchField<Type>
                (
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, volMesh>::null(),
                    Field<Type>
                    (
                        field.internalField(),
                        *processorVolPatchFieldDecomposerPtrs_[patchi]
                    )
                )
            );
        }
    }

    // Create the field for the processor
    return tmp<GeometricField<Type, fvPatchField, volMesh> >
    (
        new GeometricField<Type, fvPatchField, volMesh>
        (
            IOobject
            (
                field.name(),
                procMesh_.time().timeName(),
                procMesh_,
                IOobject::NO_READ,
                IOobject::NO_WRITE
            ),
            procMesh_,
            field.dimensions(),
            internalField,
            patchFields
        )
    );
}


template<class Type>
tmp<GeometricField<Type, fvsPatchField, surfaceMesh> >
fvFieldDecomposer::decomposeField
(
    const GeometricField<Type, fvsPatchField, surfaceMesh>& field
) const
{
    labelList mapAddr
    (
        labelList::subList
        (
            faceAddressing_,
            procMesh_.nInternalFaces()
        )
    );
    forAll (mapAddr, i)
    {
        mapAddr[i] -= 1;
    }

    // Create and map the internal field values
    Field<Type> internalField
    (
        field.internalField(),
        mapAddr
    );

    // Problem with addressing when a processor patch picks up both internal
    // faces and faces from cyclic boundaries. This is a bit of a hack, but
    // I cannot find a better solution without making the internal storage
    // mechanism for surfaceFields correspond to the one of faces in polyMesh
    // (i.e. using slices)
    Field<Type> allFaceField(field.mesh().nFaces());

    forAll (field.internalField(), i)
    {
        allFaceField[i] = field.internalField()[i];
    }

    forAll (field.boundaryField(), patchi)
    {
        const Field<Type> & p = field.boundaryField()[patchi];

        const label patchStart = field.mesh().boundaryMesh()[patchi].start();

        forAll (p, i)
        {
            allFaceField[patchStart + i] = p[i];
        }
    }

    // Create and map the patch field values
    PtrList<fvsPatchField<Type> > patchFields(boundaryAddressing_.size());

    forAll (boundaryAddressing_, patchi)
    {
        if (boundaryAddressing_[patchi] >= 0)
        {
            patchFields.set
            (
                patchi,
                fvsPatchField<Type>::New
                (
                    field.boundaryField()[boundaryAddressing_[patchi]],
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, surfaceMesh>::null(),
                    *patchFieldDecomposerPtrs_[patchi]
                )
            );
        }
        else
        {
            patchFields.set
            (
                patchi,
                new processorFvsPatchField<Type>
                (
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, surfaceMesh>::null(),
                    Field<Type>
                    (
                        allFaceField,
                        *processorSurfacePatchFieldDecomposerPtrs_[patchi]
                    )
                )
            );
        }
    }

    // Create the field for the processor
    return tmp<GeometricField<Type, fvsPatchField, surfaceMesh> >
    (
        new GeometricField<Type, fvsPatchField, surfaceMesh>
        (
            IOobject
            (
                field.name(),
                procMesh_.time().timeName(),
                procMesh_,
                IOobject::NO_READ,
                IOobject::NO_WRITE
            ),
            procMesh_,
            field.dimensions(),
            internalField,
            patchFields
        )
    );
}


template<class GeoField>
void fvFieldDecomposer::decomposeFields
(
    const PtrList<GeoField>& fields
) const
{
    forAll (fields, fieldI)
    {
        decomposeField(fields[fieldI])().write();
    }
}


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

} // End namespace Foam

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