Hi Peter,you could create a reservation with scontrol and put only the root user or any other testuser(s) in the 'users' section, e.g.
scontrol create reservation=test nodes=<nodename> starttime=<starttime> duration=<how-long> users=root
Then you need to put the reservation name to your sbatch definition or commandline for your testjob.
Cheers, Carsten Am 29.07.2021 um 11:59 schrieb Peter Schmidt:
Hello everyone,I have a Slurm GPU cluster that I'm administrating and from time to time I need to run test jobs. The issue is that my users allocate all GPUs as soon as they become available, which makes testing for me impossible. I could drain a node and wait until all jobs are finished, but as soon as I enable it again to run my test job the queued user jobs will be scheduled for that node. Is there a way to drain a node and still be able to schedule jobs for select users (e.g. root)? I currently don't have any kind of priority system in my cluster.Thank you in advance and best regards
-- Carsten Beyer Abteilung Systeme Deutsches Klimarechenzentrum GmbH (DKRZ) Bundesstraße 45a * D-20146 Hamburg * Germany Phone: +49 40 460094-221 Fax: +49 40 460094-270 Email: be...@dkrz.de URL: http://www.dkrz.de Geschäftsführer: Prof. Dr. Thomas Ludwig Sitz der Gesellschaft: Hamburg Amtsgericht Hamburg HRB 39784
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