[slurm-users] How to exclude nodes in sbatch/srun?

[Riebs, Andy]

In fairness to our friends at SchedMD, this was filed as an enhancement request, not a bug.

Since this is an open source project, there are 2 good ways to make it happen:


1.       Fund someone, like SchedMD, to make the change.

2.       Make the changes yourself, and submit the changes.

Alternatively, I like the “NOxxx features” approach a lot!

/s/ Speaking for myself

From: slurm-users [mailto:slurm-users-bounces at lists.schedmd.com] On Behalf Of Paul Edmon
Sent: Monday, June 22, 2020 9:33 AM
To: slurm-users at lists.schedmd.com
Subject: Re: [slurm-users] [External] How to exclude nodes in sbatch/srun?


For the record we filed a bug on this years ago: https://bugs.schedmd.com/show_bug.cgi?id=3875<https://bugs.schedmd.com/show_bug.cgi?id=3875>  Hasn't been fixed yet though everyone seems to agree it is a good idea.

Florian's suggestion is probably the best stopgap until this feature is implemented.

-Paul Edmon-
On 6/22/2020 7:11 AM, Florian Zillner wrote:
Durai,

To overcome this, we use noXXX features like below. Users can then request “8268&noGPU&EDR” to select nodes with 8268s on EDR without GPUs for example.

# scontrol show node node5000 |grep AvailableFeatures
   AvailableFeatures=192GB,2933MHz,SD530,Platinum,8268,rack25,EDR,sb7890_0416,enc2514,24C,SNCoff,noGPU,DISK,SSD

Cheers,
Florian


From: slurm-users <slurm-users-bounces at lists.schedmd.com><mailto:slurm-users-bounces at lists.schedmd.com> On Behalf Of Durai Arasan
Sent: Montag, 22. Juni 2020 11:02
To: Slurm User Community List <slurm-users at lists.schedmd.com><mailto:slurm-users at lists.schedmd.com>
Subject: [External] [slurm-users] How to exclude nodes in sbatch/srun?

Hi,

The sbatch/srun commands have the "--constraint" option to select nodes with certain features. With this you can specify AND, OR, matching OR operators. But there is no NOT operator. How do you exclude nodes with a certain feature in the "--constraint" option? Or is there another option that can do it?

Thanks,
Durai Arasan
Zentrum für Datenverarbeitung
Tübingen

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