[petsc-users] GAMG speed

Matthew Knepley knepley at gmail.com
Tue Aug 13 18:26:26 CDT 2013


On Tue, Aug 13, 2013 at 6:09 PM, Michele Rosso <mrosso at uci.edu> wrote:

>  Hi Karli,
>
> thank you for your hint: now it works.
> Now I would like to speed up the solution: I was counting on increasing
> the number of levels/the number of processors used, but now I see I cannot
> do that.
> Do you have any hint to achieve better speed?
> Thanks!
>

"Better speed" is not very helpful for us, and thus we cannot offer much
help. You could

 1) Send the output of -log_summary -ksp_monitor -ksp_view

 2) Describe the operator succintly

    Matt


> Best,
> Michele
>
>
>
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