[slurm-users] need to use unused cores | wherein all compute nodes are ALLOC
cap at nsc.liu.se
Mon Apr 27 09:36:50 UTC 2020
On Mon, 27 Apr 2020 14:51:01 +0530
Sudeep Narayan Banerjee <snbanerjee at iitgn.ac.in> wrote:
> Dear All,
> I have 360 cpu cores in my cluster; 9 compute nodes with 20core x 2
> sockets each.
> I have slurm.18.08.7 version and have multifactor (fair share) and
> backfill enabled.
> I am running jobs with less ntasks_per_node in the script and at some
> point all my compute nodes are ALLOC (with overall 300 cores). but
> since I have not used all the cores, around around 60 ntasks are
> still unused (distributed all over the 9 nodes).
> Question: how can I still submit another job that gets those unused
> cores to run? I know the status of all such nodes will be changed in
> MIX. so, what options has to be tweaked in slurm.conf file.
> Currently the status shows (Resources) as Reason for not getting in
> the scheduler.
Start by looking at the difference between --exclusive and not (shared).
More information about the slurm-users