CPU and Memory Usage
After job is submitted, user is allowed to use ssh for connecting compute node on which job is running.
ssh username@compute_node
After ssh to compute node, user can use following commands to check memory and cpu usage of submitted job.
ps: lists all processes.
ps -u username -o %cpu,rss,args
this will give you instantaneous usage every time you run command. Memory usage is in kilobytes.
top/htop: runs interactively and show live usage statistics.
htop -u username
Note: https://gridpane.com/kb/how-to-use-the-top-command-to-monitor-system-processes-and-resource-usage/
https://gridpane.com/kb/how-to-use-the-htop-command-to-monitor-system-processes-and-resource-usage/
nvidia-smi: shows GPU parameters and GPU memory usage.
[root@it04 ~]# nvidia-smi Wed Oct 27 09:14:33 2021 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 470.57.02 Driver Version: 470.57.02 CUDA Version: 11.4 | |-------------------------------+----------------------+----------------------+ | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |===============================+======================+======================| | 0 Tesla V100-PCIE... Off | 00000000:3B:00.0 Off | 0 | | N/A 37C P0 59W / 250W | 607MiB / 32510MiB | 24% Default | | | | N/A | +-------------------------------+----------------------+----------------------+ +-----------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=============================================================================| | 0 N/A N/A 390761 C namd2 603MiB | +-----------------------------------------------------------------------------
607MiB / 32510MiB is how much GPU you use, consider if you need this much GPU or not.