Fast Math

From Talk:XanderCat
← Thread:Talk:XanderCat/Fast Math

Jump to navigation Jump to search

Fast Math

Anyone know where to find the fast math pages/discussions? I did a search on "fast math" and couldn't find it. I know there was a number of places where alternate code for doing various trig functions was discussed, but I can't find them now.

I think it's User:Rednaxela/FastTrig.

(I didn't really notice any speed improvement when I tried adding it to Diamond, so I removed it, but maybe I screwed up or it would help other bots more.)

With Combat, profiling said all trigonometry added together were consuming about 8% CPU time. Dropped to less than 3% after fast math classes were added. Not too much of an improvement, but it was an improvement.

MN‎

You do not have permission to edit this page, for the following reasons:

The action you have requested is limited to users in the group: Users.
You must confirm your email address before editing pages. Please set and validate your email address through your user preferences.

You can view and copy the source of this page.

Thank you.  I may give it a go.  In the meantime, I've figured out how to make a few significant improvements that reduce the number of trig functions used.  In particular, I have a method in my robot predictor that calculates sin and cos for every predicted robot movement; revising it to only recalculate sin and cos when heading changes actually made a significant improvement.

Return to Thread:Talk:XanderCat/Fast Math/reply (3).

Retrieved from "http://robowiki.net/wiki/Thread:Talk:XanderCat/Fast_Math#Fast_Math_2386"