On Tue, Mar 15, 2011 at 5:41 PM, Jed Brown <jed at 59a2.org> wrote: > On Tue, Mar 15, 2011 at 23:33, Matthew Knepley <knepley at gmail.com> wrote: > >> If it does exactly what I just said, I will. However, from my reading, it >> does not. > > > You can do it with MatNestGetSubMats(), modify one entry, > MatNestSetSubMats(). But if you plan to do this often, add > MatNestUpdateSubMat(). Hmm, seems like MatNestGetSubMats() should return the > row and column ISs for symmetry. >
That is not what I have here. I want to change a portion, but outside of that I want it to fall back to a global matrix. Matt -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20110315/7d26858a/attachment.html>
