I am trying to run a trial in RayTune, for which I want to test how the number of cores I throw at the problem affects calculation times. I tried ray.init(num_cpus=foo), but it just utilises all cores on the machine nonetheless, regardless of the number I put in there.
I can't try the tune.with_resources(), as I am working with RLlib and need to specify the trainable as a string name of the algorithm (e.g. "PPO"). The documentation is also quite nontransparent on the topic. How can I overcome this?
