Re: [slurm-users] Time-based partitions
On Tuesday, 13 March 2018 5:46:09 AM AEDT Keith Ball wrote: > 1.) For a “night” partition, jobs will only be allocated resources one the > “night-time” window is reached (e.g. 6pm – 7am). Ideally, the jobs in the > “night” partition would also have higher priority during this window (so > that they would preempt jobs in the "day" partition that were still > running, if there were resource contention). > > 2.) During the “day-time” window (7am-6pm), jobs in the “day” queue can be > allocated resources, and have higher priority than jobs in the “night” > partition (that way, preemptive scheduling can occur if there is resource > contention). If you are willing to give up preemption then could you do that by having repeating reservations on each of the partitions that are accessible to nobody (just root) during the times that you don't want each of them used? https://slurm.schedmd.com/reservations.html Best of luck! Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC
Re: [slurm-users] Time-based partitions
We do this at LLNL using cron jobs to modify slurm limits for evening and weekends. From: slurm-users on behalf of Keith Ball Reply-To: Slurm User Community List Date: Monday, March 12, 2018 at 12:01 PM To: "slurm-users@lists.schedmd.com" Subject: [slurm-users] Time-based partitions Hi All, We are looking to have time-based partitions; e.g. a"day" and "night" partition (using the same group of compute nodes). 1.) For a “night” partition, jobs will only be allocated resources one the “night-time” window is reached (e.g. 6pm – 7am). Ideally, the jobs in the “night” partition would also have higher priority during this window (so that they would preempt jobs in the "day" partition that were still running, if there were resource contention). 2.) During the “day-time” window (7am-6pm), jobs in the “day” queue can be allocated resources, and have higher priority than jobs in the “night” partition (that way, preemptive scheduling can occur if there is resource contention). I have so far not seen a way to define a run or allocation time window for partitions. Are there such options? What is the best (and hopefully least convoluted) way to achieve the scheduling behavior as described above in Slurm? Thanks, Keith
Re: [slurm-users] Time-based partitions
You could probably accomplish this using a job submit lua script and some crafted QoS's. It would take some doing but I imagine it could work. -Paul Edmon- On 03/12/2018 02:46 PM, Keith Ball wrote: Hi All, We are looking to have time-based partitions; e.g. a"day" and "night" partition (using the same group of compute nodes). 1.) For a “night” partition, jobs will only be allocated resources one the “night-time” window is reached (e.g. 6pm – 7am). Ideally, the jobs in the “night” partition would also have higher priority during this window (so that they would preempt jobs in the "day" partition that were still running, if there were resource contention). 2.) During the “day-time” window (7am-6pm), jobs in the “day” queue can be allocated resources, and have higher priority than jobs in the “night” partition (that way, preemptive scheduling can occur if there is resource contention). I have so far not seen a way to define a run or allocation time window for partitions. Are there such options? What is the best (and hopefully least convoluted) way to achieve the scheduling behavior as described above in Slurm? Thanks, Keith
