[slurm-users] QoS and Preemption

[Vladimir Daric]

I Would be interested too if somebody have a solution. 


Vladimir Daric 

----- Mail original -----

De: "Sérgio Almeida" <sergio.almeida at tecnico.ulisboa.pt> 
À: slurm-users at lists.schedmd.com 
Envoyé: Lundi 19 Mars 2018 20:30:19 
Objet: [slurm-users] QoS and Preemption 

Greetings, 

I will try and over simplify what we are trying to achieve in one of our 
clusters. 

The current setup has four QoS groups, A, B, C and D. 

QoS A can use the whole the cluster's resources and preempts over QoS B, 
C and D. 

QoS B can use half the cluster's resources and preempts over QoS D. 

QoS C can use half the cluster's resources and preempts over QoS D. 

QoS D can use the whole cluster's resources and can't preempt over any 
other QoS. D is the default QoS. 

The intended behaviour is to have both B and C to be able to use the 
whole cluster whenever possible and preempt each other but just up to 
half the cluster's resources. At the moment, both B and C are limited to 
half the cluster's resources at all times. 

How can one achieve this kind of behaviour with slurm? 

Thanks! 

Cheers, 
Sérgio 


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