Exp2

[uniq10]

Hi Matthew,

Prof. Shivaram had asked us to permanently remove the non HFO players. We are directly using the sample_player binary rather than the start.sh script so that we get each individual player pid's which is later used to kill the unnecessary players.

Please check if this is fine.

[mhauskn]

Thanks for the PR. The simulator runs much faster without the other agents connected!

One problem I've noticed is that games start before the player-controlled-agent has connected.

More comments to follow.

[mhauskn]

When testing on OSX, the game doesn't start because the trainer never gets past the checkIfAllPlayersConnected call. The players never report in. The problem stems from too small a wait time between starting / terminating players. See in-line comments below.

[mhauskn]

Please change to 0.2 for stability on OSX.

[uniq10]

Alright.

I wasn't able to replicate the game staring before agent connection problem on Ubuntu 15.04.

Will change the sleep value and report.

[mhauskn]

Yeah, things work correctly for me on Ubuntu. OSX is just weird... But the weirdness existed prior to this PR. So after you change the sleep values, this looks good.

[mhauskn]

Actually on Ubuntu, the following command does not work correctly:

(./bin/HFO --offense-agents=1 --offense-npcs=0 --no-sync &) && ./example/hfo_example_agent

Instead of having an offense agent, we get an offense npc. The offense agent then dies:

matthew@drogba:~/projects/HFO$ (./bin/HFO --offense-agents=1 --offense-npcs=0 --no-sync &) && ./example/hfo_example_agent
[Agent Client] Connecting to Agent Server on port 6000
[Trainer] Launching Agent 0
[Trainer] Something necessary closed (offense_agent_0), exiting
[Trainer] TotalFrames = 0, AvgFramesPerTrial = nan, AvgFramesPerGoal = nan
[Trainer] Trials             : 0
[Trainer] Goals              : 0
[Trainer] Defense Captured   : 0
[Trainer] Balls Out of Bounds: 0
[Trainer] Out of Time        : 0
[start.py] Cleaning up server and other processes
[Agent Client] ERROR Unable to communicate with server: Connection refused

On further inspection this seems to be caused by the no-sync flag.

[uniq10]

This problem is gone when I added sleep time after the agent connect too.

I noticed another common problem in this pull request and also in the master branch.
When --no-sync is set the npcs do not wait for agent connect. They start playing before the agent connects.

[mhauskn]

Cool, can you push your changes so this PR gets updated?

[mhauskn]

Hey, just wanted to make sure this thread doesn't go stale. Can you push the changes so I can verify that examples work correctly?

[uniq10]

Sorry about that was a bit busy with Sarsa. Will push it immediately.

[mhauskn]

Testing on another Ubuntu box, the basic single agent offense example is still giving me the same error described above even without --no-sync flag.

An alternative way of going about this would be to not kill the un-needed team members until after everyone has joined. I'll poke around tomorrow and see if I can figure something out...

[mhauskn]

Hey, I did some refactoring to your PR. Tried to create a PR against your
PR, but things weren't looking right. So I just made a separate PR. Can you
take a look at it and make sure everything looks alright?
#12

On Thu, Oct 8, 2015 at 2:22 PM, UNiQ10 notifications@github.com wrote:

Sorry about that was a bit busy with Sarsa. Will push it immediately.

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Reply to this email directly or view it on GitHub
#9 (comment).

[mhauskn]

Addressed by PR #12