How fast GMP can be on Opterons?

Guillermo Ballester Valor
Tue, 22 Apr 2003 23:52:47 +0200

On Tuesday 22 April 2003 23:39, Torbjorn Granlund wrote:

> I expect it to be more than 4 times faster, thanks to the 8 added
> registers, r8...r15.  Perhaps we could reach 2 cycles/limb for
> the critical operation mpn_addmul_1.  That would imply an 8-fold
> speedup, clock-for-clock compared to Athlon.

Oh!, I see it will be even better than I tought :-).


Guillermo Ballester Valor
Ogijares, Granada  SPAIN