[petsc-dev] Stokes and saddle point solvers in PETSc?

[Jed Brown]

On Wed, Jun 15, 2011 at 02:53, Barry Smith <bsmith at mcs.anl.gov> wrote:

>  It seems we should provide a DMSDA that is built specifically for
> staggered grids, with the correct number of "slots" in the correct
> "locations", it would have appropriate grid hierarchies and
> interpolation/restriction. Not terribly hard but a bit of basic plumbing
> code. I would rather have this then try to "tack on" the current DA a bunch
> more stuff.


Yeah, though there are many different staggered discretizations so this
could end up being a big project. Not conceptually hard, just a lot of code.
DMDA is already not especially small.
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