[petsc-users] ML Statistics like BoomerAMG Print Statistics

[Jed Brown]

On Mon, May 2, 2011 at 18:03, Travis Austin <austin at txcorp.com> wrote:

>
> I'm looking for an option to ML that gives information about the hierarchy
> of matrices constructed by ML
> like that which is available with BoomerAMG using the
> -pc_hypre_print_boomeramg_statistics.
>
> In HYPRE one can use this to get operator complexity etc that tells you the
> cost of the AMG algorithm.
>

This estimate is mostly because Hypre gives you almost no choices about
smoothers. You can get some information by increasing -pc_ml_PrintLevel. The
hierarchy itself is managed by PETSc, so you can control all aspects of
smoothers on levels, etc., -ksp_view will show you the whole hierarchy.
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