[petsc-dev] GAMG MatSetValues error

[Matthew Knepley]

On Mon, Sep 24, 2012 at 9:48 PM, John Mousel <john.mousel at gmail.com> wrote:

> I'm having a problem with GAMG causing a MatSetValues() is [some non-zero
> number] after
>

I do not see any errors in your output.

  Matt


> [0] PCSetUp(): Setting up new PC
>
>  I don't get this with either ILU or HYPRE/BoomerAMG. I've attached the
> output of -info. I see there is a recent change to some pre-allocation for
> GAMG here:
>
> http://petsc.cs.iit.edu/petsc/petsc-dev/rev/fe806009181b
>
> I'm not sure if that has anything to do with it, but my blocksize is 1.
> I'm running with the following options.
>
> -ksp_type bcgsl -pc_type gamg -pc_gamg_threshold 0.01 -mg_levels_ksp_type
> richardson -mg_levels_pc_type sor -mg_coarse_ksp_type richardson
> -mg_coarse_pc_type sor -mg_coarse_pc_sor_its 4 -pc_gamg_type agg
> -pc_gamg_agg_nsmooths 1 -pc_gamg_sym_graph true -info
> -ksp_monitor_true_residual
>
> Thanks,
> John
>
>
>
>
>
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20120925/dc8fbf46/attachment.html>