[petsc-users] Trying to apply FieldSplitPC by reading bloc matrix

[Jed Brown]

Gilles Steiner <gilles.steiner at epfl.ch> writes:

> Hello Petsc Users,
>
> I have an issue trying to use FiledSplitPC in parallel.
>
> My goal : I want to get a linear system from petsc binary files and 
> solve this in parallel with the FieldSplitPC.
>
> The problem I want to solve is an FE approximation of the Stokes equations.

What FE discretization?  We don't recommend using files as part of your
workflow, but if you're just experimenting, you could start with

src/ksp/ksp/examples/tests/ex11.c which solves a Q1-P0 Stokes problem
From Underworld by reading the blocks in as matrices.  So start there
and let us know how it goes.
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