Page History

On November XX 16 Nov 2022 Slurm on Atos AD complex was updated with Slurm to version 22.05 and the same version of Slurm was installed on AC complex on 08 Dec 2022 .. Since 28 Nov 2022 AD has been default cluster (with hpc-login and hpc-batch are being aliases for nodes on AD ) since 28 Nov complex.

The same version of Slurm 22.05 was installed on AC complex on 08 Dec 2022 .

The One change to in the new Slurm version impacts all Slurm batch jobs setting the number of OMP threads using threads with directive:

#SBATCH --cpus-per-task

...

Consequently, users Users should adjust the jobs script by exporting SRUN_CPUS_PER_TASK environmental variable manually:

export SRUN_CPUS_PER_TASK=${SLURM_CPUS_PER_TASK:-1}

or alternatively by specifying number of OMP threads as an option with run command:

srun --cpus-per-task

To reduce user impact and made job scripts compatible with the new Slurm, HPC support team has set SRUN_CPUS_PER_TASK environmental variable :

export SRUN_CPUS_PER_TASK=${SLURM_CPUS_PER_TASK:-1}

to in the user profile. However, user profile is automatically loaded only in batch jobs (jobs with first line):

#!/bin/bash

...