Thanks Jed. Then I should be doing something wrong. I'm trying a simple graph and counting the number of edge cuts manually but the numbers don't match. I'll keep looking into it.
Mohammad On Mon, Feb 13, 2012 at 4:22 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote: > On Mon, Feb 13, 2012 at 18:17, Mohammad Mirzadeh <mirzadeh at gmail.com>wrote: > >> When using -mat_partitioning_view flag, PETSc reports number of edge >> cuts. Is this the number of edge cuts in the graph for the new partitioning >> (i.e. using new global numbering)? >> > > yes > > >> >> Also, does the partitioning favors minimizing the edge cuts over having >> equal number of points per processor? If so, how can this be altered? >> > > Metis and ParMetis balance the partitions "equally" (within 1 vertex), > then tries to minimize the edge cut. Assuming that is the partitioner you > are using, that is what you will get. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120213/f4554543/attachment.htm>
