Hi:
Thanks for your feedback guys :).
We continue to find srun behaving properly re: core placement.
BTW, we've further established that only MVAPICH (and therefore also Intel MPI)
jobs are encountering the OOM issue.
==
Paul Brunk, system administrator
Georgia Advanced Resource Computing Cent
We also noticed the same thing with 21.08.5. In the 21.08 series
SchedMD changed the way they handle cgroups to set the stage for cgroups
v2 (see: https://slurm.schedmd.com/SLUG21/Roadmap.pdf). The 21.08.5
introduced a bug fix which then caused mpirun to not pin properly
(particularly for olde
Hi Paul,
On 10/02/2022 14:33, Paul Brunk wrote:
Now we see a problem in which the OOM killer is in some cases
predictably killing job steps who don't seem to deserve it. In some
cases these are job scripts and input files which ran fine before our
Slurm upgrade. More details follow, but th
Hello all:
We upgraded from 20.11.8 to 21.08.5 (CentOS 7.9, Slurm built without
pmix support) recently. After that, we found that in many cases,
'mpirun' was causing multi-node MPI jobs to have all MPI ranks within
a node run on the same core. We've moved on to 'srun'.
Now we see a problem in w
