[aspect-devel] pressure normalization

[Timo Heister]

Thomas,

how expensive is the pressure normalization compared to say a whole
time step or an assembly loop? I am surprised that it shows up at all.
How many DoFs do you have with 2k cores?

On Fri, Aug 30, 2013 at 10:05 AM, Thomas Geenen <geenen at gmail.com> wrote:
> this time via the devel list....
>
> when i was running the code on > 2000 cores i noticed that a lot of time was
> wasted in the pressure normalization (bad load balance interior versus
> boundary subdomains). i would suggest putting it by default to off (or to
> off from 500+ cores or so) or use the volume normalization one.
>
> i do not think many models actually use the exact value of the pressure so
> my vote would be to setting it to off by default.
>
>
> cheers
> Thomas



-- 
Timo Heister
http://www.math.clemson.edu/~heister/