Question Can I get n? in --num-envs=<n>

Can I get n within my Unity instances?
Want to use the index to distribute training data in a convenient and optimized way.

 

Try parsing the CLI arguments from each game for the value of

--mlagents-port

or

-logFile

name.

Looking at

environments.py

the port always starts from 5005:

Code (CSharp):

1.     # Default base port for environments. Each environment will be offset from this
2.     # by it's worker_id.
3.     BASE_ENVIRONMENT_PORT = 5005

From the Unity game you should be able to simply read the port number and subtract 5005 to derive the playerID which is the same as "n"

For instance, running the command:

mlagents-learn config/config.yaml --run-id=my_robot --env "C:\project\robot_training.exe" --num-envs 2

Launches two instance of the game.

And each instance is then passed the arguments:

Code (CSharp):

1. ['--mlagents-port', '5005', '-logFile', 'C:\\project\\results\\ai_robot\\run_logs\\Player-0.log']
2. ['--mlagents-port', '5006', '-logFile', 'C:\\project\\results\\ai_robot\\run_logs\\Player-1.log']

Using the port number or parsing the log filename are two possibilities.

 

Thank you very much! @CloudyVR

I didn't realize the Player logs were in there
so your reply has really helped me a lot! Thanks again