On Wed, Jan 25, 2012 at 12:10 PM, Dominik Szczerba <dominik at itis.ethz.ch>wrote:
> I recently realized that, independently of my explicitly partitioning > the input mesh, Petsc also employs partitioning somewhere internally. > We don't unless you tell us to. > Is my understanding correct then: > > * parmetis is the default even when other partitioners were configured > Yes. > * for MPIAIJ matrices the employed partitioner must be parallel, e.g., > parmetis or ptscotch and not sequential, e.g. chaco or party. > Yes. Matt > Thanks for any clarifications. > > PS. I can not configure petsc with --download-ptscotch on any of my > systems, will send configure.log's soon. > > Dominik -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120125/c04a7571/attachment.htm>
