Hi Paul, Marcus, Thank you for your replies. Using partition priority all makes sense. I was thinking of doing something similar with a set of nodes purchased by another group. That is, having a private high priority partition and a lower priority "scavenger" partition for the public. In this case scavenger jobs will get killed when preempted.
In the present case , I did wonder if it would be possible to do something with just a single partition -- hence my question.Your replies have convinced me that two partitions will work -- with preemption leading to re-queued jobs. Best regards, David On Fri, Feb 15, 2019 at 3:09 PM Paul Edmon <ped...@cfa.harvard.edu> wrote: > Yup, PriorityTier is what we use to do exactly that here. That said > unless you turn on preemption jobs may still pend if there is no space. We > run with REQUEUE on which has worked well. > > > -Paul Edmon- > > > On 2/15/19 7:19 AM, Marcus Wagner wrote: > > Hi David, > > as far as I know, you can use the PriorityTier (partition parameter) to > achieve this. According to the manpages (if I remember right) jobs from > higher priority tier partitions have precedence over jobs from lower > priority tier partitions, without taking the normal fairshare priority into > consideration. > > Best > Marcus > > On 2/15/19 10:07 AM, David Baker wrote: > > Hello. > > > We have a small set of compute nodes owned by a group. The group has > agreed that the rest of the HPC community can use these nodes providing > that they (the owners) can always have priority access to the nodes. The > four nodes are well provisioned (1 TByte memory each plus 2 GRID K2 > graphics cards) and so there is no need to worry about preemption. In fact > I'm happy for the nodes to be used as well as possible by all users. It's > just that jobs from the owners must take priority if resources are scarce. > > > What is the best way to achieve the above in slurm? I'm planning to place > the nodes in their own partition. The node owners will have priority access > to the nodes in that partition, but will have no advantage when submitting > jobs to the public resources. Does anyone please have any ideas how to deal > with this? > > > Best regards, > > David > > > > -- > Marcus Wagner, Dipl.-Inf. > > IT Center > Abteilung: Systeme und Betrieb > RWTH Aachen University > Seffenter Weg 23 > 52074 Aachen > Tel: +49 241 80-24383 > Fax: +49 241 80-624383wag...@itc.rwth-aachen.dewww.itc.rwth-aachen.de > >
