[petsc-dev] DMComplex and PCFieldSplit

[Matthew Knepley]

On Fri, Feb 24, 2012 at 1:58 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> http://petsc.cs.iit.edu/petsc/petsc-dev/rev/518ff70e8a0a
>
> Matt, I want to get rid of these conditionals, not add more. We should
> have a DM base interface for getting fields on which to split, that common
> interface should _replace_ the DMComposite specialization.
>

I agree. However, I won't put anything in until I do it by hand once.

Also, I was tempted to just promote DMGetGlobalISes(), but its not quite
right. I am planning
to put the IS method in PetscSection. I am hoping eventually DMDA uses
PetscSection for
layout.

   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
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