Re: physics

marc breuer wrote:

> well, as i said, I've tried many kinds of settings, including 32ms 
> step simulation. the "run real time" option was always enabled. I 
> guess I could write my own 5s limit using the system time. using 32ms 
> steps actually seemed to be totally different to the 
> contest-simulation and caused far more crashes, a reason why I 
> switched to 16ms steps. but I'll stick to your recomendation and hope 
> that i get more accurate results while testing. Is it possible that 
> the simulation varies from computer to computer, depending on 
> processor speed and graphic-card power?

Yes, this is always possible, but normally if your computer is powerful 
enough, i.e., if the CPU usage is not 100% want your run a simulation in 
"real time" mode, the behavior from a computer to another should 
theoretically be the same.

-Olivier

>     ----- Original Message -----
>     *From:* Olivier Michel <mailto:[email protected]>
>     *To:* [email protected]
>     <mailto:[email protected]>
>     *Sent:* Wednesday, November 26, 2003 6:38 PM
>     *Subject:* Re: [webots-contest] physics
>
>     Hi,
>
>     I would recommand you to use a basic simulation step of 32 ms (as
>     this
>     is the value used for the contest matches). You may experience
>     different
>     behaviors in the contest rounds because the robot controllers run
>     asynchronously with the simulator. Hence I would recommand you to
>     check
>     the "run real time" option as well, so that you will be as close as
>     possible to the contest conditions (this is especially useful to take
>     into account the 5 seconds limit).
>
>     Using these options, you local simulation should run almost the
>     same as
>     on the contest server. Providing a "contest mode" wouldn't help
>     much I
>     think...
>



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