[petsc-users] Multi level DM Shell

Matthew Knepley knepley at gmail.com
Mon Feb 3 15:59:38 CST 2014



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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140203/6ea2d778/attachment-0001.html>

More information about the petsc-users mailing list