Thanks Brian! I'll take a look at weights. I want others to be able to use them and take advantage of the large memory when free. We have a preemptable partiton below that works great.
PartitionName=scavenge AllowGroups=ALL AllowAccounts=ALL AllowQos=scavenge,abc AllocNodes=ALL Default=NO QoS=scavenge DefaultTime=NONE DisableRootJobs=NO ExclusiveUser=NO GraceTime=0 Hidden=NO MaxNodes=1 MaxTime=4-00:00:00 MinNodes=1 LLN=NO MaxCPUsPerNode=UNLIMITED Nodes=...a[01-05,11-15],b[01-10],c[01-20] PriorityJobFactor=10 PriorityTier=10 RootOnly=NO ReqResv=NO OverSubscribe=NO OverTimeLimit=NONE PreemptMode=GANG,SUSPEND ... > (Added a subject) > > Tina, > > If you want group xxx to be the only ones to access them, you need to > either put them in their own partition or add info to the node > definitions to only allow certain users/groups. > > If you want them to be used last, so they are available until all the > other nodes are in use, you can add weights to the node definitions. > This would mean users could request >192GB memory, so it has to go to > one of the updated nodes, which will only be taken if the other nodes > are used up, or a job needing > 192GB is running on them. > > Brian Andrus > > On 9/4/2019 9:53 AM, Tina Fora wrote: >> Hi, >> >> I'm adding a bunch of memory on two of our nodes that are part of a >> blade >> chassis. So two computes will be upgraded to 1TB RAM and the rest have >> 192GB. All of the nodes belog to several partitons and can be used by >> our >> paid members given the partition below. I'm looking for ways to figure >> out >> how only group xxx (the ones paying for the memory upgrade) can get to >> them. >> >> PartitionName=member >> AllowGroups=ALL AllowAccounts=ALL AllowQos=xxx,yyy,zzz >> AllocNodes=ALL Default=NO QoS=N/A >> DefaultTime=NONE DisableRootJobs=NO ExclusiveUser=NO GraceTime=0 >> Hidden=NO >> MaxNodes=1 MaxTime=5-00:00:00 MinNodes=1 LLN=NO >> MaxCPUsPerNode=UNLIMITED >> Nodes=a[01-05,11-15],b[01-20] >> PriorityJobFactor=500 PriorityTier=500 RootOnly=NO ReqResv=NO >> OverSubscribe=NO >> OverTimeLimit=NONE PreemptMode=OFF >> State=UP ... >> >> Say compute a01 and a02 will have 1TB memory and I want group xxx to be >> able to get to them quickly using the partition above. >> >> Thanks, >> Tina >> >> > >
