[SOLVED] SBatch dont generate output file

[m0rfeo]

I do sbatch on a basic script

!/bin/bash

SBATCH --job-name=JOB_ID_NAME

SBATCH --ntasks=4

SBATCH --output=/test.out

echo a

Work appears as COMPLETED but can't find the output file anywhere

[m0rfeo]

I try with #SBATCH -o ../../../../../../test.out to force to put it on / directory and still the same problem

[m0rfeo]

Its could be because output of Docker is stdout? I dont think so but could be

[m0rfeo]

Please need some help, i pass one day trying to solve this issue

[hackprime]

Hi @kikegarcia28 ,

The problem is that you trying to write the output file to the path that is accessible for the current node only. The output file must be shared between all compute nodes, the / path of axc-headnode is not.

[root@axc-headnode axc]# sinfo
PARTITION AVAIL  TIMELIMIT  NODES  STATE NODELIST
compute*     up 1-00:00:00      4   idle axc-compute-[01-04]

As you can see, only axc-compute-[01-04] are included under the slurm control as compute nodes.

If you want to write output to that path anyway, you may create a new partition that will contain the head node only. Or, include the head node to the existing "compute" partition.

For example:

• Add this to the bottom of the /etc/slurm/slurm.conf

PartitionName=Debug Nodes=axc-headnode Default=No MaxTime=00:30:00 State=UP OverSubscribe=Yes

• Restart the project: docker-compose restart
• Add #SBATCH --partition debug to your job script
• Remove #SBATCH --ntasks=4
• Run the job: sbatch /test.sh

In that way, you will see the /test.out file for sure.

[m0rfeo]

OMG, How i couldn't see before. I'm so thankful for your proyect and support!

[m0rfeo]

SOLVED, thanks you!