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ENH: ptscotchDecomp: handle locally zero cells

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This commit is contained in:
mattijs
2014-04-04 11:07:16 +01:00
committed by Andrew Heather
parent dfd957514d
commit fbb80e2373
1 changed files with 17 additions and 6 deletions
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23
src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
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@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2014 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -532,12 +532,23 @@ Foam::label Foam::ptscotchDecomp::decompose
if (maxWeights > minWeights)
{
// Convert to integers.
velotab.setSize(cWeights.size());
forAll(velotab, i)
if (cWeights.size())
{
velotab[i] = int((cWeights[i]/minWeights - 1)*rangeScale) + 1;
// Convert to integers.
velotab.setSize(cWeights.size());
forAll(velotab, i)
{
velotab[i] = int((cWeights[i]/minWeights - 1)*rangeScale) + 1;
}
}
else
{
// Locally zero cells but not globally. Make sure we have
// some size so .begin() does not return null pointer. Data
// itself is never used.
velotab.setSize(1);
velotab[0] = 1;
}
}