[petsc-dev] PetscObjectViewFromOptions() pull request 1005 1006

[Lisandro Dalcin]

On Fri, 29 Jun 2018 at 17:20, Boyce Griffith <griffith at cims.nyu.edu> wrote:
>
>
> FWIW, we implemented some Vanka-type multigrid smoothers for the incompressible Stokes equations, and we found that ~15% of total runtime was spent dealing with options on real (or at least real-ish) test problems. The configure-time flag turning off the viewers dropped that down to ~1%. I don't know what PCPATCH is, but it sounds like it may be doing something similar.
>

That sounds like a more realistic number.


-- 
Lisandro Dalcin
============
Research Scientist
Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
Extreme Computing Research Center (ECRC)
King Abdullah University of Science and Technology (KAUST)
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