[slurm-users] slurm job_container/tmpfs

Roberto Monti Roberto.PolverelliMonti at jax.org
Tue Nov 21 14:03:13 UTC 2023

From the perspective of the job, those directories are mapped to /tmp (and others, depending on your job_container.conf). There's no need for the user to be aware of the basepath that is specified in the conf file.

You can easily verify it is working by writing files to /tmp from a new slurm job, and running `find /scratch/<JOBID>` as root on the same node (while the job is still running).


Roberto P. Monti
DevOps Engineer I
roberto.monti at jax.org

The Jackson Laboratory
United States | China | Japan

-----Original Message-----
From: slurm-users <slurm-users-bounces at lists.schedmd.com> On Behalf Of Arsene Marian Alain
Sent: Tuesday, November 21, 2023 7:53 AM
To: Slurm User Community List <slurm-users at lists.schedmd.com>
Subject: [EXTERNAL]Re: [slurm-users] slurm job_container/tmpfs

Hi Ward, 

You're right. 

[root at node01 scratch]# pwd
[root at node01 scratch]# ll
total 0
drwx------ 3 root root 30 nov 21 13:41 1809
[root at node01 scratch]# ls -la 1809/
total 0
drwx------  3 root  root 30 nov 21 13:41 .
drwxrwxrwt. 3 root  root 18 nov 21 13:41 ..
drwx------  2  thais root  6 nov 21 13:41 .1809
-r--r--r--  1 root  root  0 nov 21 13:41 .ns

But how can user write or access the hidden directory .1809 if he doesn't have read/write permission on  main directory 1809?


-----Mensaje original-----
De: slurm-users <slurm-users-bounces at lists.schedmd.com> En nombre de Ward Poelmans Enviado el: martes, 21 de noviembre de 2023 13:12
Para: slurm-users at lists.schedmd.com
Asunto: Re: [slurm-users] slurm job_container/tmpfs

Hi Arsene,

On 21/11/2023 10:58, Arsene Marian Alain wrote:

> I just give my Basepath=/scratch (a local directory for each node that 
> is already mounted with 1777 permissions) in job_container.conf. The 
> plugin automatically generates for each job a directory with the 
> "JOB_ID", for example: /scratch/1805
> The only problem is that directory 1805 is generated with root owner and permissions 700. So the user who submitted the job cannot write/read inside directory 1805.

If I look on our system, there should be hidden directory under that directory which is owned by the correct user.

Our job_container.conf has:

which gives directories like:

The hidden one is owned by the user of the job.


The information in this email, including attachments, may be confidential and is intended solely for the addressee(s). If you believe you received this email by mistake, please notify the sender by return email as soon as possible.

More information about the slurm-users mailing list