On Wed, Aug 8, 2012 at 8:48 AM, Colin McAuliffe <cjm2176 at columbia.edu>wrote:
> Hello all, > > When using PCFieldSplitSetIS to define splits within splits, should the IS > contain indices in the original matrix or in the next highest split level? > The next highest split level. You might consider using a DM if you have some structure (like discretization on a mesh). This should handle all the index-wrangling for you. It is new, but intended for just this kind of thing. Also, my matrix is in aij format but one of the sub fields has a block > diagonal structure. Is it still possible use block jacobi on this field? > Yes. Matt > Thanks and all the best > Colin > > > > > -- > Colin McAuliffe > PhD Candidate > Columbia University > Department of Civil Engineering and Engineering Mechanics > -- 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-users/attachments/20120808/33ff26f7/attachment.html>
