The easiest way to set the power limit permanently in ubutu with an nvidia graphics card is as follows.
#!/bin/bash
sudo nvidia-smi -pm 1
sudo nvidia-smi -pl 150 -i 0
#!/bin/bash
sudo nvidia-smi -pm 1
sudo nvidia-smi -pl 150 -i 0
#!/bin/bash sudo nvidia-smi -pm 1 sudo nvidia-smi -pl 150 -i 0
