On Jul 9, 2013, at 12:40 PM, Cody Permann <codyperm...@gmail.com> wrote:
> While I'm on the subject of partitioners, does anyone know of a way to make > the Metis partitioner less sporadic in moving the partitions around? With > each time step of this PF simulation, the set of elements owned by a specific > process is almost completely disjoint. The partitions look good but they > move around in a seemingly random fashion which is why I was using the > centroid partitioner instead. My intention was to make a movie of the > partitions overlaid with a "grain-tracking" capability that I've developed. For parmetis, and metis as well I think, there is an "adaptive repartitioning" scheme which seeks to improve a portioning with a diffusion algorithm (again, IIRC) thereby minimizing movement. I believe we tap into that in the parmetis interface because the expectation is it is important for ParallelMesh, but we've always opted for the highest quality partitioning for the SerialMesh and not worrying about the redistribution aspects. So I'd say (1) try Parmetis if the erratic behavior bothers you, and (2) we could consider implementing the same scheme inside metis. -Ben ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Libmesh-devel mailing list Libmesh-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-devel
