[petsc-dev] snes_tutorials-ex19_cuda_1

[Satish Balay]

That was a different error. This does keep coming up occasionally.
https://gitlab.com/petsc/petsc/-/issues/360#note_250063306

The current issue is:
https://gitlab.com/petsc/petsc/-/issues/360#note_314185490

Satish


On Thu, 2 Apr 2020, Karl Rupp wrote:

> 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/>
> > 
> 
>