I have two machines. When I run "srum hostname" on one machine (it's both a controller and a node) then I get the hostname fine but I get socket timed out error in these two situations:
1) "srun hostname" on 2nd machine (it's a node) 2) "srun -N 2 hostname" on controller
"scontrol show node" shows both mach2 and mach4. "sinfo" shows both nodes too. Also the job gets stuck forever in CG state after the error. Here is the output:
$ srun -N 2 hostname mach2 srun: error: slurm_receive_msgs: [[mach4]:6818] failed: Socket timed out on send/recv operation srun: error: Task launch for StepId=2222.0 failed on node hpc4: Socket timed out on send/recv operation srun: error: Application launch failed: Socket timed out on send/recv operation srun: Job step aborted
Output form "squeue" 3 seconds apart
Tue Jun 11 05:09:56 2024 JOBID PARTITION NAME USER ST TIME NODES NODELIST(REASON) 2222 poxo hostname arnuld R 0:19 2 mach4,mach2
Tue Jun 11 05:09:59 2024 JOBID PARTITION NAME USER ST TIME NODES NODELIST(REASON) 2222 poxo hostname arnuld CG 0:20 1 mach4