nvmon

A fancy NVIDIA GPU monitor for the terminal. Single Python file, no dependencies.

On a wide terminal, eight GPUs go into two columns:

Install

uv tool install nvmon    # or: pipx install nvmon

No uv? pip install nvmon works too, inside whichever environment you use.

On a server without internet, copy nvmon.py over and run it with any Python 3.6+.

Usage

nvmon              # Esc, q or Ctrl+C to quit
nvmon -i 1         # refresh every second (default: 0.5)
nvmon -g 0,2,4-7   # only these GPUs
ssh -t HOST nvmon  # over ssh: -t gives it a terminal

What it shows

• GPU: share of time any kernel ran. cores / tensor (H100 and newer): share of SMs busy and Tensor Core activity. A GPU can read 100 % while its cores sit at 30 %.
• MEM, PCIe traffic in each direction against the link's top speed, power, temperature, fan and clock.
• Processes on each GPU with run time and memory, grouped by account and conda environment (your own account unlabelled), script names for Python.
• Warnings only when something is off: SLOWED: power cap | too hot | hw brake when the clock is held back, PCIe DEGRADED: x16 -> x8 when the card runs on fewer lanes than it supports.

Notes

• Needs an NVIDIA driver and a truecolor terminal. In tmux, add set -ag terminal-overrides ",*:RGB" to ~/.tmux.conf.
• On Windows, run it in Windows Terminal; Git Bash's default window is not a terminal to Python.

License

MIT