[slurm-users] number of tasks that can run on a node without oversubscribing

[Hanu Pathuri]

Hi,
Here is my node information. I am confused with the terminology w.r.t CPU vs CORE.
NodeName=hpathuri-linux CPUs=8 RealMemory=15833 Sockets=1 CoresPerSocket=4 ThreadsPerCore=2 State=UNKNOWN.

I am unable to schedule more than 4 tasks without over subscribing even through my configuration looks like this:

SchedulerType=sched/backfill
#SchedulerPort=7321
SelectType=select/cons_res
SelectTypeParameters=CR_Core
PreemptMode=suspend,GANG

Could help clarify what is going on?

I was expecting to schedule 8 tasks.

Thanks
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