On Sun, May 15, 2011 at 15:23, Henning Sauerland <uerland at gmail.com> wrote:
> Unfortunately, I don't have any practical experience with multigrid > methods, but I'm afraid that the conventional part won't make a good coarse > level. Depending on the test case (large density ratios between the phases) > the standard approximation won't do well. Anyway, I'll take a closer look at > the multigrid topic. > Perhaps there is a homogenized problem for which the conventional method is a good approximation for long-range interaction? For example, if XFEM basis functions could be clipped and then eliminated locally. If you find a method in the literature that you would like to try, let us know and we can give advice for implementation. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110515/59828334/attachment-0001.htm>
