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by jharwell
Sat Nov 16, 2019 5:52 am
Forum: How to... ?
Topic: Performance differences with float vs double for Real
Replies: 2
Views: 13988

Performance differences with float vs double for Real

Hi Carlo, Do you have any experience with seeing noticable performance gains when you use float instead of double for the Real primitive? Were the losses in simulation fidelity significant ? I haven't been able to find anything in the docs showing the conditions under which one vs. the other could/s...
by jharwell
Fri Oct 11, 2019 5:00 pm
Forum: How to... ?
Topic: Footbots moving in 3D space
Replies: 9
Views: 36946

Footbots moving in 3D space

Hello, I'm currently trying to figure out how to get the footbots to move in 3D space in ARGoS. From my reading of the code, it seems like this should fully work by simply using a 3D physics engine. What I'm currently stuck on is how to get the robots to drive UP onto something (such as a ramp). ARG...
by jharwell
Fri Oct 11, 2019 4:42 pm
Forum: How to... ?
Topic: TAMs in ARGoS?
Replies: 1
Views: 9055

TAMs in ARGoS?

Hello, I found a reference to the use of Task Abstraction Modules (TAMs) being used in conjunction with the epuck in ARGoS a few years ago. Is that something that is still a part of ARGoS? There doesn't seem to be any reference to it in the current ARGoS tree. Is there a fork of ARGoS somewhere that...
by jharwell
Fri Jun 28, 2019 8:48 pm
Forum: How to... ?
Topic: Limitations of ARGoS for 1,000,000 robots
Replies: 5
Views: 15353

Re: Limitations of ARGoS for 1,000,000 robots

So taking a look at the code, it seems I need to update space_multi_thread_balance_quantity.cpp and space_multi_thread_balance_length.cpp so that during the phase when the media are update they are done in parallel. Is this correct? So if there are 2 media (say leds +rab), then the update steps woul...
by jharwell
Fri Jun 21, 2019 2:05 pm
Forum: How to... ?
Topic: Limitations of ARGoS for 1,000,000 robots
Replies: 5
Views: 15353

Re: Limitations of ARGoS for 1,000,000 robots

How hard would it be to parallelize the media? Is that something that I could do? (i.e. does it require in depth knowledge of general ARGoS architecture, or is it fairly self-contained?). I've done a lot of computational optimization in the past, a big part of which has been parallelizing non-parall...
by jharwell
Sun Jun 09, 2019 4:52 pm
Forum: How to... ?
Topic: Limitations of ARGoS for 1,000,000 robots
Replies: 5
Views: 15353

Limitations of ARGoS for 1,000,000 robots

Hi Carlo, I'm currently contemplating trying to get some simulation results from a 1,000,000 robot swarm (I will have access to a cluster this fall with some nodes with 128 cores/256GB memory, so I think it might be possible for some simple controllers!). My question is this: are there are limitatio...
by jharwell
Sun Jun 09, 2019 4:47 pm
Forum: How to... ?
Topic: Light sensor with different colored lights
Replies: 4
Views: 26611

Re: Light sensor with different colored lights

Ah I did not realize that! Changing the light to have its position at z=0.0 worked great! Robots are able to find the lights without issue now and do phototaxis.
by jharwell
Tue Jun 04, 2019 5:50 pm
Forum: How to... ?
Topic: Light sensor with different colored lights
Replies: 4
Views: 26611

Re: Light sensor with different colored lights

Also, I have gotten the blob camera sensor to launch in ARGoS, and have enabled it in the robot controllers, BUT I am currently unable to detect ANY leds in the arena. I have a simple single light setup with the following XML: <controllers> <crw_controller id="ffc" library="libfordyca...
by jharwell
Mon Jun 03, 2019 10:50 pm
Forum: How to... ?
Topic: Light sensor with different colored lights
Replies: 4
Views: 26611

Light sensor with different colored lights

Hi Carlo! I'm currently trying to figure out how to be able to selectively diffuse towards/away from a light of a given color suspended in the air above the arena with the footbot robot. As far as I can tell, the footbot light sensor is color agnostic, so that won't work without modification to the ...
by jharwell
Thu Feb 21, 2019 5:49 pm
Forum: How to... ?
Topic: Robots escaping from physics engines
Replies: 11
Views: 24138

Re: Robots escaping from physics engines

Running with thicker walls seems to have done the trick! Thank you! I can now run with 16,000 robots without a probem.

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