[slurm-users] requesting resources and afterwards launch an array of calculations

[Aaron Knister]

Alfredo,

I’m assuming the resources are used initially in some sort of tightly-coupled parallel task, or at least some workload where all the tasks finish at about the same time. I’m wondering and also assuming that the tasks you’re looking to run afterwards as part of an array are less tightly coupled. Does this mean there might be significant variation in the runtime of those tasks? I’m curious if your desire here is to have those array jobs treated as individual allocations so that resources can free up as tasks complete (e.g so that you’re not holding up 30 processors if just one of the tasks takes significantly longer to complete than the others). 

Sent from my iPhone

> On Dec 18, 2018, at 12:03, Alfredo Quevedo <maquevedo.unc at gmail.com> wrote:
> 
> Dear slurm users,
> 
> I would like to know if it is possible to prepare a slurm submission script in a way that initially CPU resources are requested (lets say 30 CPUs), and afterwards, the assigned resources are used to launch an array of 30 single CPU jobs array? I would greatly appreciate any hint in this respect
> 
> Thanks in advance
> 
> Alfredo
> 
>