decomposePar -allRegions produces different results than decomposePar -region XXX
Steps to reproduce
heatTransfer/chtMultiRegionFoam/windshieldDefrost
Set system/decomposeParDict to scotch
decomposePar -allRegions
vs
decomposePar -region exterior
decomposePar -region ice
decomposePar -region cabin
- eg
simplemethod produces exactly the same decompositions - we compile scotch with
SCOTCH_DETERMINISTIC
bug or feature of scotch?