Assuming all node need to run the same task once...

How about -n num_of_nodes --ntasks-per-node=1 ?

Otherwise if it is more deployment related I would use ansible to do that.

S. Zhang

On 2025/02/19 2:37, John Hearns via slurm-users wrote:

I am running single node tests on a cluster.

I can select named nodes using the -2 flag with sbatch. However - if I want to submit perhaps 20 test jobs is there any smart way to run only one time on a node? I know I could touch a file with the hostname and test for that file. I am just wondering if there is a smarter way to do this.\

I should point out that the tests take a few minutes to run, so if a node finishes a test run it could become idle and run the tests again.