particleTracksSamplerTemplates.C

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2022 OpenCFD Ltd.
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License
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#include "objectRegistry.H"
#include "ListOps.H"

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

template<class Type>
void Foam::particleTracksSampler::createTrackField
(
    const UList<Type>& values,
    List<DynamicList<Type>>& trackValues
) const
{
    List<Type> allValues(cloudGather_.gather(values));

    const label nTracks = trackValues.size();

    forAll(allValues, i)
    {
        const label globalId =
            origParcelAddr_.toGlobal(origProcIds_[i], origParcelIds_[i]);

        if (globalId % stride_ == 0)
        {
            const label trackId = globalId/stride_;

            if
            (
                trackId < nTracks
             && trackValues[trackId].size() < maxPositions_
            )
            {
                trackValues[trackId].append(allValues[i]);
            }
        }
    }
}


template<class Type>
Foam::label Foam::particleTracksSampler::setTrackFields
(
    const objectRegistry& obr,
    HashTable<List<DynamicList<Type>>>& fieldTable
) const
{
    // First time - obtain field names and populate storage locations
    if (fieldTable.empty())
    {
        wordList fieldNames = obr.names<IOField<Type>>();

        Pstream::combineReduce(fieldNames, ListOps::uniqueEqOp<word>());

        for (const word& fieldName : fieldNames)
        {
            fieldTable(fieldName).resize(nTracks());
        }
    }

    // Process in parallel-consistent order
    for (const word& fieldName : fieldTable.sortedToc())
    {
        auto& output = fieldTable[fieldName];

        const auto* ptr = obr.cfindObject<IOField<Type>>(fieldName);

        this->createTrackField
        (
            ptr ? static_cast<const UList<Type>&>(*ptr) : UList<Type>::null(),
            output
        );
    }

    return fieldTable.size();
}


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