Re: [HTCondor-users] a question about machines in the pool and slots handling

[Thomas Hartmann <thomas.hartmann@xxxxxxx>]

Hi Julio,

you might be able to realize it with CONSUMPTION policies [1], with 
which you could set different slot types each to a specific number of 
cores but keep them partitionable to also attract smaller jobs without 
too much waste (but I am not 100% sure).

Cheers,
  Thomas

[1]
SLOT_TYPE_1 = cpu=4
SLOT_TYPE_1_PARTITIONABLE = true ## should make the slot accept jobs 
with cores between 1 and 4 ##
SLOT_TYPE_1_CONSUMPTION_POLICY = false

https://htcondor.readthedocs.io/en/latest/admin-manual/policy-configuration.html?highlight=condor_negotiator-Side%20Resource%20Consumption%20Policies%20#condor-negotiator-side-resource-consumption-policies

On 23/08/2021 11.41, Valdes, Julio wrote:
> Hello:
>
> I have a condor pool with machines having different numbers of CPUs each 
> (Ex: machine A has 16 cpus, machine B 32 cpus and so on).
>
> The scenario is that I want to be able to somehow specify that only 4 
> CPUS max must be used from machine A, 10 from machine B and so on.
>
> A more elaborated reformulation of the above would be:
>
> How could I write a ClassAd requirement indicating that from machine A I 
> want to use only slots 3, 4 and 5, from machine B slots 23, 25, 27 and 
> 28, say?.
>
> All of that, within a condor submission file.
>
> Is that possible?.
>
> If so, Could anyone provide an example of a requirement (or rank) 
> statement implementing the aforementioned specification?.
>
> I tried to google this issue in many ways, unsuccessfully. I also went 
> through the condor manuals, but I was not able either to find the answer 
> or to understand the material so that I could construct the answer myself.
>
> Any help would be much appreciated.
>
> Thank you in advance
>
> Julio J. Valdés
>
> National Research Council Canada                                    | 
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>
> Digital Technologies Research Centre                               | 
> Centre de Recherche en Technologies Numériques
>
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> julio.valdes@xxxxxxxxxxxxxx <mailto:julio.valdes@xxxxxxxxxxxxxx>
>
> tel/tél: (1)613-993-0257
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