[slurm-users] Chaining srun commands

[Doug Meyer]

Hi,

I read the problem differently.  Might also want to look at heterogeneous
jobs.
Slurm Workload Manager - Heterogeneous Job Support (schedmd.com)
<https://slurm.schedmd.com/heterogeneous_jobs.html>

Doug

On Tue, Feb 28, 2023 at 3:27 PM Jake Jellinek <jakejellinek at outlook.com>
wrote:

> Hi Brian
>
> Thanks for your response
>
> > I am guessing you are using srun to get an interactive session on a
> node. That approach is being deprecated and you get a shell by default with
> salloc
> This is exactly what I'm trying to do .... I didn’t know about the salloc
> thing
>
> Let me do some more testing and I'll see if you've just resolved my issue.
>
> Will be in touch very soon
> Jake
>
> -----Original Message-----
> From: slurm-users <slurm-users-bounces at lists.schedmd.com> On Behalf Of
> Brian Andrus
> Sent: 28 February 2023 18:47
> To: slurm-users at lists.schedmd.com
> Subject: Re: [slurm-users] Chaining srun commands
>
> Jake,
>
> It may help more to understand what you are trying to do accomplish rather
> than find out how to do it the way you expect.
>
> I am guessing you are using srun to get an interactive session on a node.
> That approach is being deprecated and you get a shell by default with salloc
>
> If you are trying to start new jobs on other nodes, you would want to use
> salloc/sbatch to launch them.
> If you are wanting to have multiple nodes on a single job, IIRC, you would
> request them with the initial salloc and then use options to srun to launch
> appropriately.
>
> What specifically do you want to get (resource-wise) and how do you want
> to use them?
>
> Brian Andrus
>
> On 2/28/2023 9:49 AM, Jake Jellinek wrote:
> > Hi all
> >
> > I come from a SGE/UGE background and am used to the convention that I
> can qrsh to a node and, from there, start a new qrsh to a different node
> with different parameters.
> > I've tried this with Slurm and found that this doesn’t work the same.
> >
> > For example, if I issue an 'srun' command, I get a new node.
> > However if I then try to start a new srun session to a different node
> type (different resource requirements), it just puts me back on the same
> box.
> >
> > I did find a post from 12 years ago that suggested that this was by
> design but am hoping that this has now changed or that there is a config
> option which turns off this feature.
> >
> > Thank you
> > Jake
>
>
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