[petsc-users] parallel ILU

[Jed Brown]

On Mon, 15 Feb 2010 12:45:21 -0500, Craig Tanis <craig-tanis at utc.edu> wrote:
> It is possible to do ILU-k preconditioning on an MPI matrix, right?

Note that ILU (regardless of fill) scales very poorly, so it really only
makes sense on a small number of cores, and even then, only if you can't
find anything else that works.  As Matt says, build with Hypre, then

   -pc_type hypre -pc_hypre_type euclid -pc_hypre_euclid_levels k

Jed