faFieldDecomposerFields.C

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    Copyright (C) 2016-2017 Wikki Ltd
    Copyright (C) 2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
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.
 
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    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
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#include "faFieldDecomposer.H"
#include "processorFaPatchField.H"
#include "processorFaePatchField.H"
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
Foam::tmp<Foam::GeometricField<Type, Foam::faPatchField, Foam::areaMesh>>
Foam::faFieldDecomposer::decomposeField
(
    const GeometricField<Type, faPatchField, areaMesh>& field
) const
{
    // Create and map the internal field values
    Field<Type> internalField(field.internalField(), faceAddressing_);
 
    // Create and map the patch field values
    PtrList<faPatchField<Type>> patchFields(boundaryAddressing_.size());
 
    forAll(boundaryAddressing_, patchi)
    {
        const label oldPatchi = boundaryAddressing_[patchi];
 
        if (oldPatchi >= 0)
        {
            patchFields.set
            (
                patchi,
                faPatchField<Type>::New
                (
                    field.boundaryField()[oldPatchi],
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, areaMesh>::null(),
                    patchFieldDecomposerPtrs_[patchi]
                )
            );
        }
        else
        {
            patchFields.set
            (
                patchi,
                new processorFaPatchField<Type>
                (
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, areaMesh>::null(),
                    Field<Type>
                    (
                        field.internalField(),
                        processorAreaPatchFieldDecomposerPtrs_[patchi]
                    )
                )
            );
        }
    }
 
    // Create the field for the processor
    return
        tmp<GeometricField<Type, faPatchField, areaMesh>>::New
        (
            IOobject
            (
                field.name(),
                procMesh_.time().timeName(),
                procMesh_(),
                IOobject::NO_READ,
                IOobject::NO_WRITE
            ),
            procMesh_,
            field.dimensions(),
            internalField,
            patchFields
        );
}
 
 
template<class Type>
Foam::tmp<Foam::GeometricField<Type, Foam::faePatchField, Foam::edgeMesh>>
Foam::faFieldDecomposer::decomposeField
(
    const GeometricField<Type, faePatchField, edgeMesh>& field
) const
{
    labelList mapAddr
    (
        labelList::subList
        (
            edgeAddressing_,
            procMesh_.nInternalEdges()
        )
    );
    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
    // edges and edges from cyclic boundaries. This is a bit of a hack, but
    // I cannot find a better solution without making the internal storage
    // mechanism for edgeFields correspond to the one of edges in polyMesh
    // (i.e. using slices)
    Field<Type> allEdgeField(field.mesh().nEdges());
 
    forAll(field.internalField(), i)
    {
        allEdgeField[i] = field.internalField()[i];
    }
 
    forAll(field.boundaryField(), patchi)
    {
        const Field<Type>& p = field.boundaryField()[patchi];
 
        const label patchStart = field.mesh().boundary()[patchi].start();
 
        forAll(p, i)
        {
            allEdgeField[patchStart + i] = p[i];
        }
    }
 
    // Create and map the patch field values
    PtrList<faePatchField<Type>> patchFields(boundaryAddressing_.size());
 
    forAll(boundaryAddressing_, patchi)
    {
        const label oldPatchi = boundaryAddressing_[patchi];
 
        if (oldPatchi >= 0)
        {
            patchFields.set
            (
                patchi,
                faePatchField<Type>::New
                (
                    field.boundaryField()[oldPatchi],
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, edgeMesh>::null(),
                    patchFieldDecomposerPtrs_[patchi]
                )
            );
        }
        else
        {
            patchFields.set
            (
                patchi,
                new processorFaePatchField<Type>
                (
                    procMesh_.boundary()[patchi],
                    DimensionedField<Type, edgeMesh>::null(),
                    Field<Type>
                    (
                        allEdgeField,
                        processorEdgePatchFieldDecomposerPtrs_[patchi]
                    )
                )
            );
        }
    }
 
    // Create the field for the processor
    return
        tmp<GeometricField<Type, faePatchField, edgeMesh>>::New
        (
            IOobject
            (
                field.name(),
                procMesh_.time().timeName(),
                procMesh_(),
                IOobject::NO_READ,
                IOobject::NO_WRITE
            ),
            procMesh_,
            field.dimensions(),
            internalField,
            patchFields
        );
}
 
 
template<class GeoField>
void Foam::faFieldDecomposer::decomposeFields
(
    const PtrList<GeoField>& fields
) const
{
    forAll(fields, fieldi)
    {
        decomposeField(fields[fieldi])().write();
    }
}
 
 
// ************************************************************************* //