On Thu, Sep 23, 2010 at 16:41, Leo van Kampenhout <lvankampenhout at gmail.com> wrote: > > Thank you both. The solvers are the same, I double checked that. It could be > the case that the type of partitioning plays a role here, since i'm indeed > using a DA. However, why is it that for example a run on 2 processors the > number of iterations is higher than on 8?
Does this also happen with direct subdomain solves? -sub_pc_type lu > Both use DA-partitioning in this > case. To specify subdomains manually, where do i start? PCASMSetLocalSubdomains (use ASM with overlap 0 for this: -pc_type asm -pc_asm_overlap 0). Jed
