Heh, it helps if you set the clock speed in your profiler to 2.666 GHz instead of 1.8GHz!!
Now the graph looks right: http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/polymul3.png This was a stupid mistake on my part. However it did allow me to notice that sage.math is not being detected, so it had some use. Bill. 2008/12/22 Jason Martin <jason.worth.mar...@gmail.com>: > > Well, I just got a new machine with Xeon E7450 processors in it. The > 7400 series are all using the Dunnington architecture, so I'll start > looking into it as soon as I get the machine stable. > > Agner Fog doesn't have these new cores in his guides yet... probably > he'll have them soon. > > Jason Worth Martin > Asst. Professor of Mathematics > http://www.math.jmu.edu/~martin > > > > On Sun, Dec 21, 2008 at 9:16 PM, Bill Hart <goodwillh...@googlemail.com> > wrote: >> >> The performance of both the amd64 and core2 patches seems to suck on >> this machine. >> >> Here is a graph of Magma vs FLINT at polynomial multiplication: >> >> http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/polymul.png >> >> The leftmost column of that graph is simply integer multiplication. >> That's using the core2 patches. It's worse with amd64. >> >> It's not even clear to me what this machine should be classed as. >> >> No hints from gmp-4.2.2. It didn't build for me. I'll try a later version. >> >> Bill. >> >> 2008/12/22 Bill Hart <goodwillh...@googlemail.com>: >>> >>> I just noticed that MPIR uses generic C for all functions on the new >>> sage.math. It's has Intel Xeon(R) X7460 CPU's at 2.66 GHz, however >>> config.guess says p6???-unknown-linux-gnu. As it doesn't recognise it, >>> it builds without assembly support. >>> >>> Bill. >>> > >>> >> >> > >> > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
