On Tue, 24 Oct 2006 06:37:09 -0500, David Harvey  
<[EMAIL PROTECTED]> wrote:

>
>
> On Oct 24, 2006, at 12:34 AM, Bill Hart wrote:
>
>> Now MAGMA uses SS/FFT down to degree 16 at least, for 1000 bit.
>>
>> But now they really screwed up their algorithm, because I can use
>> MAGMA
>> to multiply 2400 degree polynomials considerably faster than they
>> do it
>> themselves.
>
> I think part of the problem may be that they only tune their
> algorithm crossover points for a specific architecture, and hope that
> these are sensible settings for other architectures too. But this is
> just speculation.

That could be.  If so, though, for various reasons I strongly suspect that
architecture would be AMD Opterons, i.e., what sage.math is.

William

--~--~---------~--~----~------------~-------~--~----~
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://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/
-~----------~----~----~----~------~----~------~--~---

Reply via email to