295 lines
8.2 KiB
C
295 lines
8.2 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | foam-extend: Open Source CFD
|
|
\\ / O peration | Version: 4.0
|
|
\\ / A nd | Web: http://www.foam-extend.org
|
|
\\/ M anipulation | For copyright notice see file Copyright
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of foam-extend.
|
|
|
|
foam-extend 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.
|
|
|
|
foam-extend 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Application
|
|
surfaceRedistributePar
|
|
|
|
Description
|
|
(Re)distribution of triSurface. Either takes an undecomposed surface
|
|
or an already decomposed surface and redistribute it so each processor
|
|
has all triangles that overlap its mesh.
|
|
|
|
Note
|
|
- best decomposition option is hierarchGeomDecomp since
|
|
guarantees square decompositions.
|
|
- triangles might be present on multiple processors.
|
|
- merging uses geometric tolerance so take care with writing precision.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "treeBoundBox.H"
|
|
#include "FixedList.H"
|
|
#include "argList.H"
|
|
#include "objectRegistry.H"
|
|
#include "foamTime.H"
|
|
#include "polyMesh.H"
|
|
#include "distributedTriSurfaceMesh.H"
|
|
#include "mapDistribute.H"
|
|
#include "triSurfaceFields.H"
|
|
#include "Pair.H"
|
|
|
|
using namespace Foam;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
// Print on master all the per-processor surface stats.
|
|
void writeProcStats
|
|
(
|
|
const triSurface& s,
|
|
const List<List<treeBoundBox> >& meshBb
|
|
)
|
|
{
|
|
// Determine surface bounding boxes, faces, points
|
|
List<treeBoundBox> surfBb(Pstream::nProcs());
|
|
{
|
|
surfBb[Pstream::myProcNo()] = treeBoundBox(s.points());
|
|
Pstream::gatherList(surfBb);
|
|
Pstream::scatterList(surfBb);
|
|
}
|
|
|
|
labelList nPoints(Pstream::nProcs());
|
|
nPoints[Pstream::myProcNo()] = s.points().size();
|
|
Pstream::gatherList(nPoints);
|
|
Pstream::scatterList(nPoints);
|
|
|
|
labelList nFaces(Pstream::nProcs());
|
|
nFaces[Pstream::myProcNo()] = s.size();
|
|
Pstream::gatherList(nFaces);
|
|
Pstream::scatterList(nFaces);
|
|
|
|
forAll(surfBb, procI)
|
|
{
|
|
const List<treeBoundBox>& bbs = meshBb[procI];
|
|
|
|
Info<< "processor" << procI << endl
|
|
<< "\tMesh bounds : " << bbs[0] << nl;
|
|
for (label i = 1; i < bbs.size(); i++)
|
|
{
|
|
Info<< "\t " << bbs[i]<< nl;
|
|
}
|
|
Info<< "\tSurface bounding box : " << surfBb[procI] << nl
|
|
<< "\tTriangles : " << nFaces[procI] << nl
|
|
<< "\tVertices : " << nPoints[procI]
|
|
<< endl;
|
|
}
|
|
Info<< endl;
|
|
}
|
|
|
|
|
|
// Main program:
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
argList::validArgs.append("triSurfaceMesh");
|
|
argList::validArgs.append("distributionType");
|
|
|
|
argList::validOptions.insert("keepNonMapped", "");
|
|
# include "setRootCase.H"
|
|
# include "createTime.H"
|
|
runTime.functionObjects().off();
|
|
|
|
fileName surfFileName(args.additionalArgs()[0]);
|
|
Info<< "Reading surface from " << surfFileName << nl << endl;
|
|
|
|
const word distType(args.additionalArgs()[1]);
|
|
|
|
Info<< "Using distribution method "
|
|
<< distributedTriSurfaceMesh::distributionTypeNames_[distType]
|
|
<< " " << distType << nl << endl;
|
|
|
|
bool keepNonMapped = args.options().found("keepNonMapped");
|
|
|
|
if (keepNonMapped)
|
|
{
|
|
Info<< "Preserving surface outside of mesh bounds." << nl << endl;
|
|
}
|
|
else
|
|
{
|
|
Info<< "Removing surface outside of mesh bounds." << nl << endl;
|
|
}
|
|
|
|
|
|
if (!Pstream::parRun())
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "Please run this program on the decomposed case."
|
|
<< " It will read surface " << surfFileName
|
|
<< " and decompose it such that it overlaps the mesh bounding box."
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
|
|
# include "createPolyMesh.H"
|
|
|
|
Random rndGen(653213);
|
|
|
|
// Determine mesh bounding boxes:
|
|
List<List<treeBoundBox> > meshBb(Pstream::nProcs());
|
|
{
|
|
meshBb[Pstream::myProcNo()] = List<treeBoundBox>
|
|
(
|
|
1,
|
|
treeBoundBox
|
|
(
|
|
boundBox(mesh.points(), false)
|
|
).extend(rndGen, 1E-3)
|
|
);
|
|
Pstream::gatherList(meshBb);
|
|
Pstream::scatterList(meshBb);
|
|
}
|
|
|
|
IOobject io
|
|
(
|
|
surfFileName, // name
|
|
//runTime.findInstance("triSurface", surfFileName), // instance
|
|
runTime.constant(), // instance
|
|
"triSurface", // local
|
|
runTime, // registry
|
|
IOobject::MUST_READ,
|
|
IOobject::NO_WRITE
|
|
);
|
|
|
|
const fileName actualPath(io.filePath());
|
|
fileName localPath(actualPath);
|
|
localPath.replace(runTime.rootPath() + '/', "");
|
|
|
|
if (actualPath == io.objectPath())
|
|
{
|
|
Info<< "Loading local (decomposed) surface " << localPath << nl <<endl;
|
|
}
|
|
else
|
|
{
|
|
Info<< "Loading undecomposed surface " << localPath << nl << endl;
|
|
}
|
|
|
|
|
|
// Create dummy dictionary for bounding boxes if does not exist.
|
|
if (!isFile(actualPath / "Dict"))
|
|
{
|
|
dictionary dict;
|
|
dict.add("bounds", meshBb[Pstream::myProcNo()]);
|
|
dict.add("distributionType", distType);
|
|
dict.add("mergeDistance", SMALL);
|
|
|
|
IOdictionary ioDict
|
|
(
|
|
IOobject
|
|
(
|
|
io.name() + "Dict",
|
|
io.instance(),
|
|
io.local(),
|
|
io.db(),
|
|
IOobject::NO_READ,
|
|
IOobject::NO_WRITE,
|
|
false
|
|
),
|
|
dict
|
|
);
|
|
|
|
Info<< "Writing dummy bounds dictionary to " << ioDict.name()
|
|
<< nl << endl;
|
|
|
|
ioDict.regIOobject::writeObject
|
|
(
|
|
IOstream::ASCII,
|
|
IOstream::currentVersion,
|
|
ioDict.time().writeCompression()
|
|
);
|
|
}
|
|
|
|
|
|
// Load surface
|
|
distributedTriSurfaceMesh surfMesh(io);
|
|
Info<< "Loaded surface" << nl << endl;
|
|
|
|
|
|
// Generate a test field
|
|
{
|
|
const triSurface& s = static_cast<const triSurface&>(surfMesh);
|
|
|
|
autoPtr<triSurfaceVectorField> fcPtr
|
|
(
|
|
new triSurfaceVectorField
|
|
(
|
|
IOobject
|
|
(
|
|
surfMesh.searchableSurface::name(), // name
|
|
surfMesh.searchableSurface::instance(), // instance
|
|
surfMesh.searchableSurface::local(), // local
|
|
surfMesh,
|
|
IOobject::NO_READ,
|
|
IOobject::AUTO_WRITE
|
|
),
|
|
surfMesh,
|
|
dimLength
|
|
)
|
|
);
|
|
triSurfaceVectorField& fc = fcPtr();
|
|
|
|
forAll(fc, triI)
|
|
{
|
|
fc[triI] = s[triI].centre(s.points());
|
|
}
|
|
|
|
// Steal pointer and store object on surfMesh
|
|
fcPtr.ptr()->store();
|
|
}
|
|
|
|
|
|
// Write per-processor stats
|
|
Info<< "Before redistribution:" << endl;
|
|
writeProcStats(surfMesh, meshBb);
|
|
|
|
|
|
// Do redistribution
|
|
Info<< "Redistributing surface" << nl << endl;
|
|
autoPtr<mapDistribute> faceMap;
|
|
autoPtr<mapDistribute> pointMap;
|
|
surfMesh.distribute
|
|
(
|
|
meshBb[Pstream::myProcNo()],
|
|
keepNonMapped,
|
|
faceMap,
|
|
pointMap
|
|
);
|
|
faceMap.clear();
|
|
pointMap.clear();
|
|
|
|
Info<< endl;
|
|
|
|
|
|
// Write per-processor stats
|
|
Info<< "After redistribution:" << endl;
|
|
writeProcStats(surfMesh, meshBb);
|
|
|
|
|
|
Info<< "Writing surface." << nl << endl;
|
|
surfMesh.searchableSurface::write();
|
|
|
|
Info<< "End\n" << endl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|