Ah, I see. Well, I guess the best place to start is to do a little benchmarking, to see if the initial partitioning has a significant effect. We may be talking about a few percentage points here.
On Dec 16, 2010, at 7:32 PM, Wolfgang Bangerth wrote: > >> I wouldn't even describe my case as problematic. The partitioning works >> fine, it just struck me as unusual. My only thought would be to >> pre-partition the coarse mesh using, e.g., METIS, and then perform a >> Cuthill-McKee ordering within the partitions. Are there any continuity >> requirements for the space filling curve, or can we rearrange coarse cells >> arbitrarily? > > We can arrange them as we want. But pre-partitioning with METIS doesn't work > because different coarse mesh cells will be refined differently, and so the > coarse-mesh partitions will be wildly ill-partitioned once you adaptively > refine. > > Best > W. > > ------------------------------------------------------------------------- > Wolfgang Bangerth email: [email protected] > www: http://www.math.tamu.edu/~bangerth/ _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
