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Space Robotics Challenge
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total sim time possible is very low #253

Closed osrf-migration closed 7 years ago

osrf-migration commented 7 years ago

Original report (archived issue) by dan (Bitbucket: dan77062).

24 hours real time * .16 sim/real factor -> 3.86 hours of sim time. The best you can do is 2 computers running simultaneously for 2 runs each (4 total), plus a single computer for the 5th. So you have at least 3 runs back-to-back, each run only gets 1.29 hours of sim time for all three tasks. If you are unable to run multiple computers, then you only get 3.86 / 5 = 0.77 hours of sim time per run. And you only get that if you spend zero time in the start and finish boxes.

So, with a single computer, instead of 3.5 hours of sim time we really only have a maximum of about 45 minutes of sim time for each run, or about 15 minutes per task, in order to stay under the 24 hour real time limit.

Is that right?

osrf-migration commented 7 years ago

Original comment by Balazs Kollar (Bitbucket: BalazsKollar).

For multiple parallel runs we would need fully automatic solutions, which was not a requirement. We would like to keep an eye on the sim and interfere occasionally. But then will we only be able to actually take a fraction of the task time limit?

EDIT: Based on issue #246 we have 150 hours of AWS time which is more than enough to cover the task time limits. In this case the pdf sent out yesterday might contain outdated information on the time allocation.

osrf-migration commented 7 years ago

Original comment by dan (Bitbucket: dan77062).

The 24 hour limit was changed to 300 hours. Good move.