Author: Robert Allgeuer
Date: 06:45:32 08/07/03
Go up one level in this thread
On August 07, 2003 at 07:53:41, Vincent Diepeveen wrote: >On August 07, 2003 at 06:30:39, Robert Allgeuer wrote: > >Dead wrong. > >You aren't running 16 bits executables at your P4 either are you? > >So stop these nonsense statements. Runnative 64 bits compiled itanium >executables at itaniums. Run 64 bits native compiled opteron executables at >opteron and run 32 bits x86 compiled exes at K7/P4. I know this as well, your posting is not particularly helpful. Still, knowing the speed-up for pure 32 bit code on an Opteron does make sense for those who might want to buy an Opteron machine for chess today, when most programs have NOT been compiled or released for 64 bit, yet. Robert > >>On August 07, 2003 at 05:30:57, Gian-Carlo Pascutto wrote: >>> >>> Opteron v Athlon Opteron vs P4 >>>SPEC 1.55 1.74 >>>Crafty 1.65 2.65 >>>Sjeng 1.70 2.05 >>> >>>When running 32 bit software (or more precisely, software using the old 8 >>>register instruction set), the Opteron is 42% and 65% faster than the Athlon >>>and P4 respectively. >>> >> >>I assume these two last figures are for general programs, i.e. from SPEC. >>How much would be the speed-up of 32 bit executables for Sjeng and Crafty on >>Opteron, which is a more relevant measure for chess programs. >> >>Robert
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.