[petsc-users] Partitioning meshes with DMPlex

Jed Brown jedbrown at mcs.anl.gov
Wed Oct 23 10:43:55 CDT 2013

Cedric Doucet <cedric.doucet at inria.fr> writes:

> Hello, 
> what is the best way to partition unstructured meshes stored with DMPlex? 

You can use DMPlexCreatePartition, which supports metis and chaco.

Matt, DMPlexCreatePartition documentation has left out the partitioner "name".

> Does one have to create an adjacency matrix and use MatPartitioning routines? 
> I do not want to partition the mesh graph (by cutting edges) but having a true domain decomposition (sets of cells per processor). 
> Thank you very much for your help! 
> Best regards, 
> Cédric Doucet 
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