Manuel, You may want to instruct your users to use ‘-c’ or ‘—cpus-per-task’ to define the number of cpus that they need. Please correct me if I’m wrong, but I believe that will restrict the jobs to a singe node whereas ‘-n’ or ‘—ntasks’ is really for multi process jobs which can be spread amongst multiple nodes.
Mike From: slurm-users <slurm-users-boun...@lists.schedmd.com> on behalf of "Holtgrewe, Manuel" <manuel.holtgr...@bihealth.de> Reply-To: Slurm User Community List <slurm-users@lists.schedmd.com> Date: Friday, May 8, 2020 at 03:28 To: "slurm-users@lists.schedmd.com" <slurm-users@lists.schedmd.com> Subject: [External] [slurm-users] Defining a default --nodes=1 CAUTION: This email originated from outside of the Colorado School of Mines organization. Do not click on links or open attachments unless you recognize the sender and know the content is safe. Dear all, we're running a cluster where the large majority of jobs will use multi-threading and no message passing. Sometimes CPU>1 jobs are scheduled to run on more than one node (which would be fine for MPI jobs of course...) Is it possible to automatically set "--nodes=1" for all jobs outside of the "mpi" partition (that we setup for message passing jobs)? Thank you, Manuel -- Dr. Manuel Holtgrewe, Dipl.-Inform. Bioinformatician Core Unit Bioinformatics – CUBI Berlin Institute of Health / Max Delbrück Center for Molecular Medicine in the Helmholtz Association / Charité – Universitätsmedizin Berlin Visiting Address: Invalidenstr. 80, 3rd Floor, Room 03 028, 10117 Berlin Postal Address: Chariteplatz 1, 10117 Berlin E-Mail: manuel.holtgr...@bihealth.de Phone: +49 30 450 543 607 Fax: +49 30 450 7 543 901 Web: cubi.bihealth.org www.bihealth.org www.mdc-berlin.de www.charite.de
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