[slurm-users] Managing Local Scratch/TmpDisk

Fulcomer, Samuel samuel_fulcomer at brown.edu
Tue Mar 31 21:19:28 UTC 2020

If you use cgroups, tmpfs /tmp and /dev/shm usage is counted against the
requested memory for the job.

On Tue, Mar 31, 2020 at 4:51 PM Ellestad, Erik <Erik.Ellestad at ucsf.edu>

> How are folks managing allocation of local TmpDisk for jobs?
> We see how you define the location of TmpFs in slurm.conf.
> And then how the amount per host is defined via TmpDisk.
> Then the request for srun/sbatch via --tmp=X
> However, it appears SLURM only checks the defined TmpDisk amount when
> allocating tmp, not the actual space available on disk.
> That is to say, for example, if during the course of its run, a job uses
> more of the TmpDisk space than it requests initially, SLURM doesn't check
> the actual disk space available for other jobs.
> The only notification that you will get is when your jobs run out of space
> or the defined TmpFs is full.
> Thanks!
> Erik
> ---
> Erik Ellestad
> Wynton Cluster SysAdmin
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