[petsc-dev] snes_tutorials-ex19_cuda_1

[Karl Rupp]

The fluctuations in this example have been fixed a few months ago; the 
issue was the use of multiple streams instead of a single one. Maybe 
additional CUDA streams have been reintroduced recently?

Best regards,
Karli


On 4/2/20 5:02 AM, Junchao Zhang wrote:
> I could not reproduce it locally. Even in the CI, it is random.
> 
> --Junchao Zhang
> 
> 
> On Wed, Apr 1, 2020 at 7:47 PM Matthew Knepley <knepley at gmail.com 
> <mailto:knepley at gmail.com>> wrote:
> 
>     I saw Satish talking about this on the CI Tracker MR.
> 
>         Matt
> 
>     On Wed, Apr 1, 2020 at 8:36 PM Lisandro Dalcin <dalcinl at gmail.com
>     <mailto:dalcinl at gmail.com>> wrote:
> 
>         Well, my request will not fix the problem:
>         https://gitlab.com/petsc/petsc/-/jobs/495147366#L5231
> 
>         On Thu, 2 Apr 2020 at 03:26, Lisandro Dalcin <dalcinl at gmail.com
>         <mailto:dalcinl at gmail.com>> wrote:
> 
>             Can anyone messing with CPUs please update test
>             snes_tutorials-ex19_cuda_1 to use -ksp_monitor_short and
>             update its output with REPLACE=1 ?
> 
>             Please do it in maint, or cherry-pick if already fixed in
>             master.
> 
>             Regards,
> 
>             -- 
>             Lisandro Dalcin
>             ============
>             Research Scientist
>             Extreme Computing Research Center (ECRC)
>             King Abdullah University of Science and Technology (KAUST)
>             http://ecrc.kaust.edu.sa/
> 
> 
> 
>         -- 
>         Lisandro Dalcin
>         ============
>         Research Scientist
>         Extreme Computing Research Center (ECRC)
>         King Abdullah University of Science and Technology (KAUST)
>         http://ecrc.kaust.edu.sa/
> 
> 
> 
>     -- 
>     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
> 
>     https://www.cse.buffalo.edu/~knepley/
>     <http://www.cse.buffalo.edu/~knepley/>
>