[petsc-users] FIELDSPLIT fields

Matthew Knepley knepley at gmail.com
Wed Aug 15 20:17:53 CDT 2018


On Wed, Aug 15, 2018 at 8:42 PM Griffith, Boyce Eugene <boyceg at email.unc.edu>
wrote:

> Is it permissible to have overlapping fields in FIELDSPLIT? We are
> specifically thinking about how to handle DOFs living on the interface
> between two regions.
>

There is only 1 IS, so no way to do RASM, or any other thing on the
overlap. This sort of things was supposed to be handled by GASM.
I am not sure that works. If you want blocks that are not parallel, then
you can probably use PCPATCH as soon as I get it merged.

   Matt


> Thanks!
>
> — Boyce



-- 
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

https://www.cse.buffalo.edu/~knepley/ <http://www.caam.rice.edu/~mk51/>
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