On Wed, Dec 1, 2010 at 18:29, Barry Smith <bsmith at mcs.anl.gov> wrote:
> We need a really good entry in the FAQ for solving Stokes problems with > PETSc or a solid section in the users manual. This question comes up fairly > often (usually phrased as something like ILU sucks for my problem, what is > wrong with PETSc). I think the users manual deserves a section on solving generalized saddle-point problems. There is one last quirk with FieldSplit that I think we need to address in order to have a good API for this (how to pipe preconditioning information into the bowels of FieldSplit-Schur, I'm settling on a way to do this). Explaining how to do coupled 1-level DD is easier in some ways, but does involve the inf-sup condition. Coupled multigrid is probably the hardest of all of these options, it would help quite a bit if we could provide a generic Vanka smoother. Jed -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20101201/8e7618a1/attachment.html>
