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

[Brian Andrus]

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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