[slurm-users] Can I set dynamic weighting for nodes?

[Russell Smithies]

That's a great idea Brian, I'll give it a go  😊

--Russell

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Message: 3
Date: Thu, 15 Sep 2022 17:06:26 -0700
From: Brian Andrus <toomuchit at gmail.com>
To: slurm-users at lists.schedmd.com
Subject: Re: [slurm-users] Can I set dynamic weighting for nodes?
Message-ID: <129a545f-c48c-0b81-46c3-4eb2f2cb21d7 at gmail.com>
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You can dynamically modify the weight of nodes with:

 ??? scontrol update nodename=<nodename> weight=<weight>

So, in theory, you could do that periodically to adjust the weights you may want.

Brian Andrus

On 9/15/2022 4:27 PM, Russell Smithies wrote:
>
> Can I set dynamic or calculated ??weights? for nodes based on server
> load, memory free, keyboard idle time etc?
>
> The reason I want to do this is sometimes servers are busy running
> non-slurm jobs so load can be high, and in this case I don?t want them
> to accept slurm tasks.
>
> Also (I think) if no weights are set then nodes appear to be assigned
> ?alphabetically?? i.e. node_1 seems to do most of the work even if
> it?s older and slower.
>
> I recall that this was possible with Condor via Requirements in the
> ClassAd but is there a similar method for slurm?
>
> Have I overlooked something obvious? Is this something slurm can do?
>
> Thanx,
>
> Russell Smithies
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