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- PID: Process ID.
- USER: The owner of the process.
- PR: Process priority.
- NI: The nice value of the process.
- VIRT: Amount of virtual memory used by the process. On our servers, currently, the maximum virtual memory a job can use is 25% of the total memory. Which means 64 GB on most of our servers.
- RES: Amount of resident memory used by the process. This is the actual memory your process is using!!!
- SHR: Amount of shared memory used by the process.
- S: Status of the process. (See the list below for the values this field can take).
- %CPU: The share of CPU time used by the process since the last update. Can go up to a little more than 100%. When using shared memory parallelism (OpenMP) this value can go up to 100% times the number of shared memory processes.
- %MEM: The share of physical memory used.
- TIME+: Total CPU time used by the task in hundredths of a second.
- COMMAND: The command name or command line (name + options).
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