FYI, when I computed bernoulli(10^7+4), I did so from sage -gp -- not from the sage interface to gp.
On Mon, 9 Jun 2008, David Harvey wrote: > > Hi, > > This is on an 8-core 2GHz xeon running debian. (Tom Boothby's machine.) > > In a clean build of sage-3.0.2: > > sage: time x = bernoulli(40000) > CPU times: user 4.19 s, sys: 0.01 s, total: 4.20 s > Wall time: 4.20 s > sage: time x = bernoulli(40000) > CPU times: user 3.18 s, sys: 0.01 s, total: 3.18 s > Wall time: 3.19 s > sage: time x = bernoulli(40000) > CPU times: user 3.18 s, sys: 0.00 s, total: 3.19 s > Wall time: 3.19 s > sage: time x = bernoulli(40000) > CPU times: user 3.18 s, sys: 0.00 s, total: 3.19 s > Wall time: 3.19 s > > Then I tried building my own PARI/GP. I first built gmp 4.2.1 with > jason martin's core 2 patches. Then I built pari/gp. I get: > > ? # > timer = 1 (on) > ? x = bernfrac(40000); > time = 1,972 ms. > ? x = bernfrac(40000); > time = 1,317 ms. > ? x = bernfrac(40000); > time = 1,316 ms. > ? x = bernfrac(40000); > time = 1,316 ms. > > Why is the sage version three times slower than the gp version? > > david > > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
