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ENH: redistributePar - detect if reconstruct is required (#2092)

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This commit is contained in:
Mattijs Janssens
2021-05-17 16:21:18 +00:00
committed by Mark Olesen
parent 0df219d1b3
commit 4028738327
1 changed files with 35 additions and 3 deletions
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38
applications/utilities/parallelProcessing/redistributePar/redistributePar.C
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@ -2639,7 +2639,39 @@ int main(int argc, char *argv[])
haveAddressing = true;
}
if (!returnReduce(haveAddressing, andOp<bool>()))
// Additionally check for master faces being readable. Could
// do even more checks, e.g. global number of cells same
// as cellProcAddressing
bool haveUndecomposedMesh = false;
if (Pstream::master())
{
Info<< "Checking " << baseRunTime.caseName()
<< " for undecomposed mesh" << endl;
const bool oldParRun = Pstream::parRun(false);
faceCompactIOList facesIO
(
IOobject
(
"faces",
facesInstance,
meshSubDir,
baseRunTime,
IOobject::NO_READ
)
);
haveUndecomposedMesh = facesIO.headerOk();
Pstream::parRun(oldParRun);
}
Pstream::scatter(haveUndecomposedMesh);
if
(
!haveUndecomposedMesh
|| !returnReduce(haveAddressing, andOp<bool>())
)
{
Info<< "loading mesh from " << facesInstance << endl;
autoPtr<fvMesh> meshPtr = loadOrCreateMesh
@ -2662,8 +2694,8 @@ int main(int argc, char *argv[])
// Determine decomposition
// ~~~~~~~~~~~~~~~~~~~~~~~
Info<< "Reconstructing mesh for time " << facesInstance
<< endl;
Info<< "Reconstructing mesh for time "
<< facesInstance << endl;
label nDestProcs = 1;
labelList finalDecomp = labelList(mesh.nCells(), Zero);