------ The most dangerous phrase in the language is, "We've always done it this way."
- Grace Hopper On 31 August 2016 at 21:07, Christof Koehler < [email protected]> wrote: > Hello everybody, > > If I understand the slurm documentation correctly the usual configuration > in slurm would be to allocate resources (i.e. whole nodes) exclusively > to a single job only. Setting select/cons_res (and subsequent > configuration of consumables) as well as OverSubscribe Yes would in > principle enable a user to decide whether to allow sharing of resources > by setting "--share/-s" or "--exclusive" as options to sbatch. > > Is this correct so far ? How is the resource usage calculated then ? I don't believe it's 100% necessary to use OverSubscribe Yes. We have select/cons_res and CR_CPU, on nodes that look like NodeName=stpr-res-compute[01-02] CPUs=40 RealMemory=385000 Sockets=2 CoresPerSocket=10 ThreadsPerCore=2 State=UNKNOWN Our users can share nodes. In this conf, there are 40 cpus/node, and resources are distributed as per each user's request. The CPUs aren't shared, but there's 40 of them per node, so that doesn't really matter so much. Also, have you found this page? http://slurm.schedmd.com/mc_support.html I only found last week, but made things a lot clearer in my head. Cheers L.
