[slurm-users] Limit number of CPU in a partition

[Ole Holm Nielsen]

On 01/02/2018 12:59 PM, Nicolò Parmiggiani wrote:
> My problem is that i have for instance 100 CPU, and i want to create two 
> partition each with 50 CPU maximum usage. In this way i can submit job 
> to both partitions independently.

I wonder what you really want to achieve?  Why do you want to divide 
your 100 CPUs (nodes or CPU cores?) into 2 partitions?  The queue will 
be much more flexible if identical nodes constitute 1 partition.

If you really insist on splitting up your nodes into 2 partitions, you 
can configure that in slurm.conf, for example with 100 nodes named 
a001..a100:

PartitionName=partition1 Nodes=a[001-050]
PartitionName=partition2 Nodes=a[051-100]

If you wish, you can look at my Slurm Wiki pages for inspiration:
https://wiki.fysik.dtu.dk/niflheim/SLURM
https://wiki.fysik.dtu.dk/niflheim/Slurm_configuration

> 2018-01-02 11:29 GMT+01:00 Nicolò Parmiggiani 
> <nicolo.parmiggiani at gmail.com <mailto:nicolo.parmiggiani at gmail.com>>:
> 
>     Hi,
> 
>     how can i limit the number of CPU that a partition can use?
> 
>     For instance when a partition reach its maximum CPUs number you can
>     submit new job but they are put in queue.

/Ole