[petsc-users] Multi level DM Shell

[Matthew Knepley]

Yes

  Matt


On Mon, Feb 3, 2014 at 3:32 PM, Luc Berger-Vergiat <lb2653 at columbia.edu>wrote:

> I'm fairly sure I know the answer to this question after looking up the
> source code but is it possible to create sub-splits while using a DMShell?
> To be more specific I have a matrix which I decompose into 4 fields and I
> would like to do something like
>
> -ksp_type gmres
> -pc_type fieldsplit
> -pc_fieldsplit_type schur
> -pc_fieldsplit_schur_factorization_type full
> -pc_fieldsplit_schur_precondition self
> -pc_fieldsplit_0_fields 0,1
> -pc_fieldsplit_1_fields 2,3
> ...
>
> Best,
> Luc
>



-- 
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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