Turning off Frequency Scaling for Node

[Kunal Pai]

Hi,

We are using nodes in the AMD EPYC machine in the Utah cluster. We wanted to turn off frequency scaling for a node at the BIOS level before we ran our experiments on it, but we couldn't find a good way to do it. Could you clarify whether:

1. Frequency scaling can be disabled directly through the BIOS on these nodes, or

2. If not, whether there is a recommended mechanism (e.g., through kernel parameters, cpupower, or other utilities) that ensures the cores run at a fixed frequency for the duration of the experiment?

Any guidance is appreciated!

Best,

Kunal.