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harshadkhadilkar
Harshad Khadilkar

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Multi-Agent Reinforcement Learning on Trains

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graded 97761
graded 97760
graded 97744

Multi Agent Reinforcement Learning on Trains.

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Multi-Agent Reinforcement Learning on Trains

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Participant Rating

Flatland

πŸš‡ 5 days left! Final tips & tricks for the home stretch

12 months ago

Do you know when the official results will be confirmed?

πŸš‡ 5 days left! Final tips & tricks for the home stretch

About 1 year ago

A little bit nit-picky, but what does the deadline indicate? Is it (a) last instant at which a valid submission can be uploaded, or (b) the last instant at which a valid submission must complete its evaluation?

Broken Pipeline error

About 1 year ago

Yes, worked in debug mode just now. Ran out of my normal 5 slots.

In case anyone else runs into this issue: please ask them to enforce h5py==2.10.0 in the yml file.

Broken Pipeline error

About 1 year ago

I think this is the issue (see link below). A new version of the h5py library was released 22 hours ago as of now. This library is used to load/save keras models, among other things. Will try with a specific version requirement in the yml file.

Broken Pipeline error

About 1 year ago

Update: A debug mode submission showed an error in the load model statement. This could be a keras/tensorflow version mismatch - was the standard docker image changed recently?

Broken Pipeline error

About 1 year ago

Hi @jyotish, @MasterScrat, @shivam: I’m not sure if this is a related issue, but all my submissions seem to be failing since this morning. They move from image creation to β€œevaluation pending”, and then directly to β€œfailed” without starting the evaluation. Looking at the Submissions page, a lot of other people may also be facing the same issue.

In case this is a technical fault, please re-queue my Saturday submissions. Thank you!

Broken Pipeline error

About 1 year ago

Thanks @jyotish. However, I am now out of submission slots for today - it looks like the failed submissions got counted?

Broken Pipeline error

About 1 year ago

I am getting a [32] broken pipeline error when submitting. Is anyone else facing this issue?

🏁 Round 1 has finished, Round 2 is starting soon!

About 1 year ago

Is the evaluation portal down, until round 2 starts? I submitted a solution today which succeeded in the image building step, but the evaluation failed with the following error:

2020-09-01T08:16:14.853289803Z Collecting git+http://gitlab.aicrowd.com/flatland/flatland.git@325_eval_step_timeout
2020-09-01T08:16:14.854575078Z Cloning http://gitlab.aicrowd.com/flatland/flatland.git (to revision 325_eval_step_timeout) to /tmp/pip-req-build-f4qpaosv
2020-09-01T08:16:14.854850024Z Running command git clone -q http://gitlab.aicrowd.com/flatland/flatland.git /tmp/pip-req-build-f4qpaosv
2020-09-01T08:16:14.859971742Z ERROR: Error [Errno 2] No such file or directory: β€˜git’: β€˜git’ while executing command git clone -q http://gitlab.aicrowd.com/flatland/flatland.git /tmp/pip-req-build-f4qpaosv
2020-09-01T08:16:14.860988008Z ERROR: Cannot find command β€˜git’ - do you have β€˜git’ installed and in your PATH?
2020-09-01T08:16:15.280559332Z Traceback (most recent call last):
2020-09-01T08:16:15.280606385Z File β€œ./run.py”, line 1, in
2020-09-01T08:16:15.280615333Z import numpy as np
2020-09-01T08:16:15.280621989Z ModuleNotFoundError: No module named β€˜numpy’

Question about submission confidentiality

Over 1 year ago

Sure, that’s fair! Thanks for the clarification.

Question about submission confidentiality

Over 1 year ago

Dear organizing team, I am hoping to submit an RL submission to this competition, but I have a corporate affiliation. Is it possible to keep the source code of my submission private (even after the competition ends)? My company is happy to have the full source code submitted for review purposes (but not for public viewing).

πŸš‰ Questions about the Flatland Environment

Over 1 year ago

Thanks for the prompt response! It turned out to be a joblib version issue. I had an older version installed, which was mismanaging the object references.

πŸš‰ Questions about the Flatland Environment

Over 1 year ago

Hi, I’m trying to parallelise the RL training by running multiple episodes simultaneously. Do you know if other people have successfully tried this out? Something is going wrong for me - the environment does not seem to be creating independent instances of itself. My threads appear to be writing to each other’s memory locations.

NeurIPS 2020: Procgen Competition

Submission failed : [Errno 32] Broken pipe

About 1 year ago

I’m getting this error too. @MasterScrat, any tips?

harshadkhadilkar has not provided any information yet.