Reload `nvidia-smi` without a reboot.

reload_nvidia.sh

#!/bin/bash
# Reloads `nvidia-smi` if you have had NVML/Library updates/mismatches,
# and you use a remote server which you cannot reboot for a whole host 
# of scary reasons. Ensure nothing is running on the GPU, else this fails.
# Must be run with sudo. Be careful there are no display targets on the
# It is likely safe.

set -Eeuo pipefail

if [[ $UID != 0 ]]; then
    echo "Please run this script with sudo."
    echo "sudo $0 $*"
    exit 1
fi

systemctl isolate multi-user.target

# Stop nvidia modules.
modprobe -r nvidia_uvm nvidia_modeset
modprobe -r nvidia

systemctl start graphical.target

nvidia-smi