On Sat, Mar 2, 2013 at 1:17 AM, Jie Chen <jiechen at mcs.anl.gov> wrote:
> For the former case, you are not trying to squeeze one subdomain to one > compute node, are you? Why is it memory limited? > That's what I had in mind. Yes, you can use subdomains much larger than one process, but it's easy to use smaller subdomains, and then the Galerkin coarse operator becomes somewhat sparse. Is there a demonstration of deflation providing significant benefit for problems that are _not_ amenable to multigrid? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20130302/fcc4d5e2/attachment-0001.html>
