ENH: increase coverage of bitSet support for field distributors

applications/utilities/parallelProcessing/redistributePar/parFvFieldDistributor.cxx

@@ -0,0 +1,149 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2015 OpenFOAM Foundation
+    Copyright (C) 2022-2023 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.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    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
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "parFvFieldDistributor.H"
+#include "bitSet.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+int Foam::parFvFieldDistributor::verbose_ = 1;
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+void Foam::parFvFieldDistributor::createPatchFaceMaps()
+{
+    const fvBoundaryMesh& fvb = srcMesh_.boundary();
+
+    patchFaceMaps_.resize(fvb.size());
+
+    forAll(fvb, patchi)
+    {
+        if (!isA<processorFvPatch>(fvb[patchi]))
+        {
+            // Create compact map for patch faces only
+            // - compact for used faces only (destination patch faces)
+            labelList oldToNewSub;
+            labelList oldToNewConstruct;
+
+            // Copy face map
+            patchFaceMaps_.set
+            (
+                patchi,
+                new mapDistributeBase(distMap_.faceMap())
+            );
+
+            patchFaceMaps_[patchi].compactRemoteData
+            (
+                bitSet(tgtMesh_.boundaryMesh()[patchi].range()),
+                oldToNewSub,
+                oldToNewConstruct,
+                srcMesh_.nFaces(),   // max index of subMap
+                UPstream::msgType()
+            );
+            //Pout<< "patchMap:" << patchFaceMaps_[patchi] << endl;
+        }
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::parFvFieldDistributor::parFvFieldDistributor
+(
+    const fvMesh& srcMesh,
+    fvMesh& tgtMesh,
+    const mapDistributePolyMesh& distMap,
+    const bool isWriteProc
+)
+:
+    srcMesh_(srcMesh),
+    tgtMesh_(tgtMesh),
+    distMap_(distMap),
+    dummyHandler_(fileOperation::null()),
+    writeHandler_(dummyHandler_),
+    isWriteProc_(isWriteProc)
+{
+    createPatchFaceMaps();
+}
+
+
+Foam::parFvFieldDistributor::parFvFieldDistributor
+(
+    const fvMesh& srcMesh,
+    fvMesh& tgtMesh,
+    const mapDistributePolyMesh& distMap,
+    refPtr<fileOperation>& writeHandler
+)
+:
+    srcMesh_(srcMesh),
+    tgtMesh_(tgtMesh),
+    distMap_(distMap),
+    dummyHandler_(nullptr),
+    writeHandler_(writeHandler),
+    isWriteProc_(Switch::INVALID)
+{
+    createPatchFaceMaps();
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::parFvFieldDistributor::reconstructPoints()
+{
+    // Reconstruct the points for moving mesh cases and write them out
+    distributedFieldMapper mapper
+    (
+        labelUList::null(),
+        distMap_.pointMap()
+    );
+
+    pointField newPoints(srcMesh_.points(), mapper);
+    tgtMesh_.movePoints(newPoints);
+
+    if (isWriteProc_.good())
+    {
+        if (UPstream::master())
+        {
+            tgtMesh_.write();
+        }
+    }
+    else if (writeHandler_ && writeHandler_->good())
+    {
+        auto oldHandler = fileOperation::fileHandler(writeHandler_);
+        const label oldComm = UPstream::commWorld(fileHandler().comm());
+
+        tgtMesh_.write();
+
+        writeHandler_  = fileOperation::fileHandler(oldHandler);
+        UPstream::commWorld(oldComm);
+    }
+}
+
+
+// ************************************************************************* //