On Wed, Mar 14, 2012 at 07:47, Matthew Knepley <knepley at gmail.com> wrote:
> I thought MatSchurComplement() made the original matrix available? > Not sure what you mean. The submatrices are inside a MatSchurComplement. But the user doesn't get access to the Schur complement to set near-null spaces. > I still disagree with this for > MatGetSubMatrix() since it will create a nightmare for references. I am > still tracking down a > reference bug in FS when you use a custom preconditoner for Schur. > FieldSplit in petsc-dev has some new bugs, Jungho is working on them. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120314/fbe84bb7/attachment.htm>
