[slurm-users] constraints question

[Douglas Jacobsen]

I think you'll need to update to 18.08 to get this working, constraint
arithmetic and knl were not compatible until that release.
----
Doug Jacobsen, Ph.D.
NERSC Computer Systems Engineer
Acting Group Lead, Computational Systems Group
National Energy Research Scientific Computing Center <http://www.nersc.gov>
dmjacobsen at lbl.gov

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On Sun, Nov 11, 2018 at 12:27 AM Chris Samuel <chris at csamuel.org> wrote:

> On Tuesday, 6 November 2018 11:06:43 PM AEDT Tina Friedrich wrote:
>
> > So what am I doing wrong with the 'or'?
>
> I don't have node features defined (other than for KNL nodes), so I can't
> test
> your scenario, but I do see similar as I get the error:
>
> $ srun -C "broadwell|haswell" --pty /bin/bash
> srun: error: Unable to allocate resources: Invalid KNL configuration
> (MCDRAM
> or NUMA option)
>
> but when using and I get:
>
> $ srun -C "broadwell&haswell" --pty /bin/bash
> srun: error: Unable to allocate resources: Invalid feature specification
>
> Just a rough guess as I don't have time to try and trace the code, but the
> ESLURM_INVALID_KNL error only occurs in the KNL plugin, whereas
> ESLURM_INVALID_FEATURE occurs in slurmctld code so I'm wondering if the
> main
> code tries to satisfy the constraints and (for me) fails, and so drops
> through
> to the KNL plugin to check that and that gets the last say on what the
> Slurm
> error number could be.
>
> That would imply that for some reason your node features aren't getting
> properly processed, either by the presence of the KNL plugin or for some
> other
> reason.   It would be worth trying to disable the KNL plugin and see what
> effect that has.
>
> Best of luck!
> Chris
> --
>  Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC
>
>
>
>
>
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