I've moved two nodes to a different controller. The nodes are wired and the controller is networked via wifi. I had to open up ports 6817 and 6818 between the wired and wireless sides of our network to get any connectivity.
Now when I do srun -N2 hostname the jobs show connection timeouts on the nodes: [2020-02-06T14:24:37.183] launch task 60.0 request from UID:1000 GID:1000 HOST:10.204.18.232 PORT:19602 [2020-02-06T14:24:37.183] lllp_distribution jobid [60] implicit auto binding: cores, dist 8192 [2020-02-06T14:24:37.183] _task_layout_lllp_cyclic [2020-02-06T14:24:37.183] _lllp_generate_cpu_bind jobid [60]: mask_cpu, 0x0101 [2020-02-06T14:24:37.184] _run_prolog: run job script took usec=6 [2020-02-06T14:24:37.184] _run_prolog: prolog with lock for job 60 ran for 0 seconds [2020-02-06T14:24:45.224] [60.0] error: connect io: Connection timed out [2020-02-06T14:24:45.224] [60.0] error: IO setup failed: Connection timed out [2020-02-06T14:24:45.225] [60.0] error: job_manager exiting abnormally, rc = 4021 [2020-02-06T14:24:59.538] [60.0] error: _send_launch_resp: Failed to send RESPONSE_LAUNCH_TASKS: Connection timed out [2020-02-06T14:24:59.551] [60.0] done with job That node used port 19602 and the other node was using port 12496. When I did the srun again the jobs showed two different ports on the nodes (58040 and 32392). How can I configure a network if srun is going to grab different ports each time?
