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

[Renfro, Michael]

Literal job arrays are built into Slurm: https://slurm.schedmd.com/job_array.html

Alternatively, if you wanted to allocate a set of CPUs for a parallel task, and then run a set of single-CPU tasks in the same job, something like:

  #!/bin/bash
  #SBATCH --ntasks=30
  srun --ntasks=${SLURM_NTASKS} hostname

is one way of doing it. If that’s not what you’re looking for, some other details would be needed.

-- 
Mike Renfro, PhD / HPC Systems Administrator, Information Technology Services
931 372-3601     / Tennessee Tech University

> On Dec 18, 2018, at 11:03 AM, 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
> 
>