Dear all,
As I am moving towards understanding the wrappers, I am facing a problem in
making Step 31 converge. My previous question is answered, and it compiles.
Yet, I am still wondering what kind of "pure deal.II" preconditioner I
could use in that tutorial.
Specifically, there are two in the tutorial (using Trilinos).
- PreconditionAMG is an algebraic multigrid using a Chebyshev smoother,
used to solve the stokes problem.
- PreconditionIC is an incomplete Cholesky, used to retrieve the
temperature.
Now my implementation runs (with results), but I am aware my choices are
not the best ones. Please note that I am using just deal.II without PETSc
now as I am unable to run codes that require MPI (so, no Hypre). I've
chosen to use:
- SparseILU for the stokes problem.
- IdentityPreconditioner for the temperature.
Do you have any suggestions? I could also use PETSc, but MPI is not an
option.
Thanks for your help!
Franco
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