Socket Closure Errors in simulink_gym Wrapper

[parisarnj]

Hello,

I'm currently training an agent using the simulink_gym wrapper with a custom Simulink model. During the training process, at the end of each episode, I receive the following messages:

INFO: Something went wrong while closing socket (('127.0.0.1', 55322), 42312)
INFO: Something went wrong while closing socket (('127.0.0.1', 55320), 42313)

I also noticed the following comment in the close function of the CommSocket class:

This catches an error appearing after some time in the training

process. It seems that the socket used to send data to the

Simulink model is closing before its close() method is called.

The reasons have to be investigated (#TBD).

The training continues despite these messages, but I'm concerned about whether this might negatively impact the training process.

• Does this comment indicate that the error I'm encountering is related to the simulink_gym wrapper code?
• Should I be concerned about how these socket errors might affect the training performance of my agent?
• Do you have any suggestions on how I can solve it?

Thank you in advance for your assistance.

[johbrust]

Hi,
this should not impact your training process since it is only occuring after the episode when the socket is to be closed anyway.

[parisarnj]

Thank you so much for your response.

Just to confirm, can we say that there won't be any interruption in transferring data between Python and MATLAB during the actual training process?

[johbrust]

Yes, that should be the case.