processorCyclicPointPatchField.C

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    Copyright (C) 2020-2025 OpenCFD Ltd.
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License
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#include "processorCyclicPointPatchField.H"
#include "transformField.H"
#include "processorPolyPatch.H"


// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //

template<class Type>
Foam::processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const pointPatch& p,
    const DimensionedField<Type, pointMesh>& iF
)
:
    coupledPointPatchField<Type>(p, iF),
    procPatch_(refCast<const processorCyclicPointPatch>(p))
{}


template<class Type>
Foam::processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const pointPatch& p,
    const DimensionedField<Type, pointMesh>& iF,
    const dictionary& dict
)
:
    coupledPointPatchField<Type>(p, iF, dict),
    procPatch_(refCast<const processorCyclicPointPatch>(p, dict))
{}


template<class Type>
Foam::processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const processorCyclicPointPatchField<Type>& ptf,
    const pointPatch& p,
    const DimensionedField<Type, pointMesh>& iF,
    const pointPatchFieldMapper& mapper
)
:
    coupledPointPatchField<Type>(ptf, p, iF, mapper),
    procPatch_(refCast<const processorCyclicPointPatch>(ptf.patch()))
{}


template<class Type>
Foam::processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const processorCyclicPointPatchField<Type>& ptf,
    const DimensionedField<Type, pointMesh>& iF
)
:
    coupledPointPatchField<Type>(ptf, iF),
    procPatch_(refCast<const processorCyclicPointPatch>(ptf.patch()))
{}


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

template<class Type>
void Foam::processorCyclicPointPatchField<Type>::initSwapAddSeparated
(
    const Pstream::commsTypes commsType,
    Field<Type>& pField
) const
{
    if (UPstream::parRun())
    {
        // Get internal field into correct order for opposite side. Note use
        // of member data buffer since using non-blocking. Could be optimised
        // out if not using non-blocking...

        sendBuf_.resize_nocopy(this->size());  // <- presize buffer
        recvBuf_.resize_nocopy(this->size());

        this->patchInternalField
        (
            pField,
            procPatch_.reverseMeshPoints(),
            sendBuf_
        );

        if (commsType == Pstream::commsTypes::nonBlocking)
        {
            UIPstream::read
            (
                commsType,
                procPatch_.neighbProcNo(),
                recvBuf_,
                procPatch_.tag(),
                procPatch_.comm()
            );
        }

        UOPstream::write
        (
            commsType,
            procPatch_.neighbProcNo(),
            sendBuf_,
            procPatch_.tag(),
            procPatch_.comm()
        );
    }
}


template<class Type>
void Foam::processorCyclicPointPatchField<Type>::swapAddSeparated
(
    const Pstream::commsTypes commsType,
    Field<Type>& pField
) const
{
    if (UPstream::parRun())
    {
        // If nonblocking, data is already in receive buffer

        if (commsType != Pstream::commsTypes::nonBlocking)
        {
            recvBuf_.resize_nocopy(this->size());  // In general a no-op

            UIPstream::read
            (
                commsType,
                procPatch_.neighbProcNo(),
                recvBuf_,
                procPatch_.tag(),
                procPatch_.comm()
            );
        }

        if (doTransform())
        {
            const auto& ppp = procPatch_.procCyclicPolyPatch();
            const tensor& forwardT = ppp.forwardT()[0];

            transform(recvBuf_, forwardT, recvBuf_);
        }

        // All points are separated
        this->addToInternalField(pField, recvBuf_);
    }
}


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