[petsc-users] Multi level DM Shell

[Luc Berger-Vergiat]

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140203/4a124a1c/attachment.html>