The Xeon 2.66 GHz figures (from sage.math) seem to be missing. Did I give those?
Anyhow, the Apple is certainly 65 nm. Don't know about the other. I think it is Jeff's machine. But the clock speed would seem to indicate that. Bill. 2009/3/4 <ja...@njkfrudils.plus.com>: > > > Looking at addmul_1 for the core2 we have glitch at 11-14 limbs , this is > caused by a branch mispredict on a threshold changeover , may be worth > removing it or changing the threshold. Notice that it only seems to effect > the Apple core2 2.66 and the Xeon E5405 2.00 but not the other two core2 > cpus. Are these older cpus ? different model numbers.I mean cpuid model > numbers either 15,22 or 29 ? and the graphs look like they are diverging > - Show quoted text - > > > On Wednesday 04 March 2009 13:39:31 Cactus wrote: >> Hi All, >> >> Jeff kindly sent me figures on the performance of the assembler code >> on two kore architectures, both Core 2, one Linux and one Vista. So I >> have uploaded a number of graphs giving the results for the six >> architectures we now have reports on. I would be most grateful if you >> folk who understand these architectures could take a look at these >> graphs and let me know what you think. >> >> If any of you think that there are six processors listed and only five >> graphs, it turns out that Jeffs Core 2 Vista figures and my Core2 >> Vista figures are identical on most graphs and overlay each other. >> >> I am not sure what this means. It could mean that the code is working >> differently on Windows and is sometimes slower. Or it could mean that >> my port of speed is not working properly on Windows. Or it could mean >> that the two processors in question really are close to identical in >> performance. >> >> My thanks to everyine who has reported results. >> >> 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 -~----------~----~----~----~------~----~------~--~---
