Trial Pending about marllib

[Theohhhu]

set num_gpus_per_worker = 0 to see if it works.
In most cases, samplers(workers) do not need GPU.

[JackYansongLi]

I tried the following configuration in ray.yaml:

num_workers: 1
num_gpus: 0
num_cpus_per_worker: 1
num_gpus_per_worker: 0

but the script terminated immediately. This seems odd to me, because the script should still work in theory if I choose not to use GPU computing.

[Theohhhu]

Is there any bug reported before the termination?

[JackYansongLi]

The issue is caused by the version of petting zoo. The API used in MARLlib does not consist with the current version of pettingzoo. Use the following command solves the problem.

pip install pettingzoo[mpe]==1.12.0

Besides, there are also some packages lost in the documentation, listed below

pip install supersuit==3.3.0
pip install icecream