Hi Mikhail, On 18/09/17 15:41, Mikhail Kuzminsky wrote:
> Is it possible to use diffenent slurm versions on different worker nodes > of cluster (w/other slurmctld and slurmdbd versions on head node) ? If > this is possible in principle (to use different slurmd versions on > different worker nodes), what are the most important restrictions for this? The best info is in the "Upgrading" section of the Slurm quickstart guide: https://slurm.schedmd.com/quickstart_admin.html # Slurm daemons will support RPCs and state files from the two # previous minor releases (e.g. a version 16.05.x SlurmDBD will # support slurmctld daemons and commands with a version of 16.05.x, # 15.08.x or 14.11.x). [...] # # If the SlurmDBD daemon is used, it must be at the same or higher # minor release number as the Slurmctld daemons. In other words, # when changing the version to a higher release number (e.g from # 16.05.x to 17.02.x) always upgrade the SlurmDBD daemon first. # [...] # # The slurmctld daemon must also be upgraded before or at the same # time as the slurmd daemons on the compute nodes. Generally, # upgrading Slurm on all of the login and compute nodes is # recommended, although rolling upgrades are also possible # (i.e. upgrading the head node(s) first then upgrading the # compute and login nodes later at various times). Also see # the note above about reverse compatibility. [...] I don't know how well you'd go with differing versions across compute nodes, I'd suggest if you are going to do that you have a partition per version as I would guess an older version will not like talking to a new version. So basically you could have (please double check this!): slurmdbd: 17.02.x slurmctld: 17.02.x slurmd: 17.02.x & 16.05.x & 15.08.x or: slurmdbd: 17.02.x slurmctld: 16.05.x slurmd: 16.05.x & 15.08.x or: slurmdbd: 16.05.x slurmctld: 16.05.x slurmd: 16.05.x & 15.08.x or: slurmdbd: 16.05.x slurmctld: 15.08.x slurmd: 15.08.x or: slurmdbd: 15.08.x slurmctld: 15.08.x slurmd: 15.08.x Good luck! Chris -- Christopher Samuel Senior Systems Administrator Melbourne Bioinformatics - The University of Melbourne Email: sam...@unimelb.edu.au Phone: +61 (0)3 903 55545 _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
