Need your Inputs for improving competition

Hi all, you’ve spent some time wrangling the simulator and can now help us make the challenge better.

Please let us know what has been your major pain points so far? and, what would you like to see improved?

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Haven’t gotten up and running yet, but I had some missing libraries when installing the python packages from requirements.txt.

Specifically, I fixed it by sudo apt install libhdf5-dev libglib2.0-dev.

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I have 2 questions:

  1. Can we run the simulator in headless mode (no GUI)? I believe without rendering the training will be much faster.
  2. Can we run one simulator instance for multiple training scripts, i.e. same IP, same port?
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Hi @ducnx:

  1. The simulator runs at a fixed heartbeat which means running headless will give you some speed benefit but not necessarily a lot. Additionally, right now the arrival simulator does not support running headless.
  2. Currently not supported, but added to roadmap. Thank you!

Thank you for answering. How can I run multiple instances of the simulator with different ports on a single machine, so I can allow each training script to use one simulator instance?

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@siddha_ganju @jyotish
Hi, I found a bug in env.py, lines 689-691:

            ) + np.arctan(
                dx / dy
            ) # yaw, radians

This should be:

            ) + np.arctan2(
                dx, dy
            ) # yaw, radians

This is a bug because with arctan the car is facing the wrong way when resetted to some segments, leading to episode termination after the car starts driving. Reference: https://numpy.org/doc/stable/reference/generated/numpy.arctan2.html

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Also it would be super cool if we were allowed to cut the curbs on the track, that would just look absolutely sick :laughing:

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Good catch, this has been fixed and will be available shortly.

The cameras on the evaluation server are still not configured according to the rules in the challenge overview, as I described in this thread:

This is currently keeping me from submitting my agent. Are there any news on this topic? :thinking:

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Thanks — added to the documentation, along with some other suggestions: https://learn-to-race.readthedocs.io/en/latest/getting_started.html

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