Indeed, thanks Jason for showing how to improve the code in this way. I will definitely return to these tips for my next Sage project.
Thanks once more to Niles for making his original Hopf fibration code (http://www.nilesjohnson.net/hopf-production.html) public and for helping Ihechukwu and I with this project. Bruce Bartlett On Friday, September 14, 2012 1:12:06 AM UTC+2, jason wrote: > On 9/13/12 5:06 PM, Jason Grout wrote: > > > > > I think there is still a lot of room for speeding this up more, if > > > someone wanted a fun project. > > > > And I got another factor of 2 by making the inner function a Cython > > "class" [1]: > > > > http://aleph.sagemath.org/?q=8b878cda-030d-4433-9d11-a10153d9d9a3 > > > > Okay, that's it for now. But I still think there is room for > > improvement. On my computer, the initial version took 20 seconds to do > > the above benchmark, and the Cython version takes .37s, so a speedup of > > about 50x or so. I don't see that same speedup on aleph, and I'm not > > sure why. Anyways, now it sort of works as an interact: > > http://aleph.sagemath.org/?q=3d4f343c-323e-43f6-a8a8-149cfd7217dc > > > > Jason > > > > [1] > > https://github.com/jasongrout/hopf_fibrations/commit/9c88cc0e3242ef3e50e311f65ba4300a5a4e5446 -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To post to this group, send email to sage-devel@googlegroups.com. To unsubscribe from this group, send email to sage-devel+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en.
