[CIG-CS] Variable viscosity Stokes solver

[Walter Landry]

Wolfgang Bangerth <bangerth at math.tamu.edu> wrote:
> 
>> As for which parts of Trilinos are used, I am not sure.  I believe it
>> uses BoomerAMG.  Wolfgang would know best.  I am using Debian's
>> package which includes everything.
> 
> deal.II can use hypre/BoomerAMG along with the native PETSc vector
> and matrix classes, and ML along with the native Trilinos vector and
> matrix classes (i.e.  the Epetra package).
> 
> That said, both PETSc and Trilinos are optional for deal.II, and the
> variable viscosity solver you have uses neither.

Now I am a bit confused.  You sent a me a modified version of step-32
which uses Trilinos explicitly, but the falling block test does not.
So, are they using the same type of solver?

Cheers,
Walter Landry
walter at geodynamics.org