On Fri, 02 Mar 2012 12:43:46 William Stein wrote: > On Fri, Mar 2, 2012 at 12:42 PM, Francois Bissey > > <fbis...@slingshot.co.nz> wrote: > > On Fri, 02 Mar 2012 11:17:55 William Stein wrote: > >> Hi, > >> > >> I thought that if I rendered a 3d scene using viewer='tachyon', then > >> it would use the multiple cores of my computer to render the scene > >> more quickly. However, I was just rendering a complicated 3d scene > >> for my class (that takes about 30 seconds), and in top I see the > >> attached screenshot -- in particular, there is only 1 thread. > >> I'm using a Core i7 OS X 10.7 laptop that has at least 2 processors > >> (and "4 hardware threads", I think), and Sage Version 5.0.beta2. > >> > >> Anyway, I'm very surprised. Is this a new bug or just something we > >> never enabled or what? > > > > I'd have to check but I think you cannot have threading and opengl at > > the same time. We may have chosen opengl over threading in sage. > > This makes no sense to me at all. I have no idea how or why opengl is > relevant to the question. Can you elaborate. > My mistake, opengl is only available with threads, I thought I remembered from a long time ago that they were mutually exclusive options. I also discover that I am actually clueless about the targets available for OS X which is where we need to look.
Francois -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
