[petsc-dev] ML changing the number of levels

[Leo van Kampenhout]

Hello,

I was wondering if it is already possible to set the number of levels with
the ML package. I tried -pc_mg_levels and PCMGSetLevels, both do not work.

I have an 8*10^6 Poisson matrix, and so far ML has given me the best
results. However, I think with increasing the gridsize, i should also
increase the number of multigrid levels. What are your thoughts?

Thanks,

Leo



2011/3/23 Barry Smith <bsmith at mcs.anl.gov>

>
> On Mar 22, 2011, at 9:42 PM, Jed Brown wrote:
>
> > I was hoping you would just fix it. :)
>
>    I don't know how to fix it except with a hack. I'll look at as soon as
> my brain grows back, hopefully in a day or two.
>
>
>   Barry
>
> >
> >
> >> On Mar 23, 2011 3:39 AM, "Barry Smith" <bsmith at mcs.anl.gov> wrote:
> >>
> >>
> >>
> >> On Mar 22, 2011, at 7:34 PM, Jed Brown wrote:
> >>
> >> > I just fixed a few things in PCReset_ML, but t...
> >>
> >>  Right. I forgot about this issue. Maybe put a note about this in the
> code for the future.
> >>
> >>
> >>  Barry
> >>
> >
>
>
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