[petsc-dev] field split/schur complement, incompressible flow

[Chris Kees]

Hi,

I noticed that the FieldSplit functionality is now in the latest  
release, but I've been having trouble finding examples of how to use  
it. I'm using fairly standard stabilized equal order P1 and P2  
tetrahedral elements for variable viscosity/density incompressible  
flow with the DOF end to end (p0p1p2...u0u1u2...not interleaved) so I  
think I need to use the general PCFieldSplitSetIS.  Would anybody be  
willing to point me to some example code that uses the current field  
split functionality? Is it basically finished in the latest release or  
is there still reason to use petsc-dev if that's what I'm working on?

Thanks,
Chris