Dear Slurm User list,

I would like to startup all ~idle (idle and powered down) nodes and check programmatically if all came up as expected. For context: this is for a program that sets up slurm clusters with on demand cloud scheduling.

In the most easiest fashion this could be executing a command like srun FORALL hostname which would return the names of the nodes if it succeeds and an error message otherwise. However, there's no such input value like FORALL as far as I am aware. One could use -N{total node number} as all nodes are ~idle when this executes, but I don't know an easy way to get the total number of nodes.

Best regards,
Xaver