On Wednesday 04 March 2009 15:57:25 Cactus wrote: > On Mar 4, 3:49 pm, ja...@njkfrudils.plus.com wrote: > > On Wednesday 04 March 2009 15:40:04 Bill Hart wrote: > > > This is on a K10. The runs differ significantly. Interesting. > > > > > > It might have to do with the almost completely unpredictable > > > scheduling on the K10. Certainly the differences at limb n are almost > > > always made up again, or nearly so, at limb n+1, and by the end of 40 > > > limbs the times are usually within a cycle or so. On average > > > performance doesn't vary. > > > > > > Bill. > > > > My K8 is very stable, the K10(cuda1) a bit less so , and I found the > > core2 (sage.math) to be all over the place . You could try increasing the > > precision , yet again. > > > > > 2009/3/4 Jeff Gilchrist <jeff.gilchr...@gmail.com>: > > > > On Wed, Mar 4, 2009 at 10:27 AM, Bill Hart > > > > <goodwillh...@googlemail.com> > > > > wrote: > > > >> I've just noticed that the times from speed are not consistent > > > >> between runs!! I thought that was almost impossible. > > > > > > > > I did several runs on my systems and they all agreed for me, even > > > > when the system was loaded or not. > > > > > > > > Jeff. > > > > - Show quoted text - > > I do see some variation on my Core 2 portable but my Athlon X2 gives > consistent results. The variation on the Core 2 is not large enough to > worry about. > > By the way, does anyone have a theory about the mpn_mul_1 curve (2nd > to bottom) that goes up and down regularly?
thats the green line , your windows K8 mpn_mul_1 and mpn_addmul_1 on K8 are the same function(practically) , but the addmul doesn't display that behavour. > > Brian > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mpir-devel" group. To post to this group, send email to mpir-devel@googlegroups.com To unsubscribe from this group, send email to mpir-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/mpir-devel?hl=en -~----------~----~----~----~------~----~------~--~---
