Select a GPU#
Today nabu works on a single GPU. If you have different processes requiring GPU it can be convenient to select a specific one and avoid conflicts.
You can do this either from a terminal before launching tomwer or from a ‘python script’ widget. On this example we have more n GPU (n>=0) and we want to use the first one.
From a python script widget#
import os
os.environ[”CUDA_VISIBLE_DEVICES”] = 0
From a terminal#
# define the GPU to be used
export CUDA_VISIBLE_DEVICES=0
# start tomwer canvas
tomwer canvas
Hint
You can list accessible GPU devices on a computer / slurm node by using nvidia-smi from a terminal
