A usage problem

[GaoRunz]

Hello, I recently ran into a problem with smarties.
If I want to run my ENV in parallel, train only one AGENT and run an environment, what do I do? Unlike cart_pole_distribEnv, I use multiple processes to run the same environment to improve the efficiency of the ENV, each time all processes perform the same action and return only one state and one reward。
Looking forward to your answer, thank you very much！