Author: Joachim Rang
Date: 13:39:05 10/02/02
Go up one level in this thread
On October 02, 2002 at 15:24:46, Robert Hyatt wrote: >On October 02, 2002 at 13:49:25, Joachim Rang wrote: > >>On October 02, 2002 at 11:10:36, Robert Hyatt wrote: >> >>>On October 02, 2002 at 08:17:39, Joachim Rang wrote: >>> >>>>On October 02, 2002 at 07:12:38, George Sobala wrote: >>>> >>>>>On October 02, 2002 at 05:00:41, T. Opas wrote: >>>>> >>>>>>It is Deep Fritz 7, but the version is unclear, because there is an agreement, >>>>>>that Kramnik got the same version as used in the match three month before the >>>>>>match, means latest on the 4th of july. But the official release of DF7 for >>>>>>public was about the 15th of august! >>>>>>Hardware should be 8 x 900 MHz Compaq wizh 4 GB RAM. >>>>>> >>>>>>Best, >>>>>> Torsten >>>>> >>>>>So - 8x900MHz? Given the problems of non-linearity between number of processors >>>>>and "real" speedup, wouldn't a spanking new dual 2.4 or 2.8GHz P4 be as fast (or >>>>>even faster)? >>>> >>>>name me a better (available) system. >>>>There is no. Please Robert, clear up! >>> >>> >>>Maybe or maybe not. >>> >>>IE for example, using a rough performance estimate for crafty 8 x 900mhz would >>>theoretically like a 7200mhz machine. But in reality, it would run like a >>>(1 + 7*.7*)900 = 5.9 * 900 =5300 mhz roughly >>> >>>using a quad 2.2ghz machine would in theory provide 8800 mhz, but with crafty >>>would be closer to (1+3*.7)*2200 == 3.1*2200 = 6800mhz, which is significantly >>>faster... >> >> >>but, the Quad-system would use the new Xeon-CPUs, with the reduced >>operations/cycle (like the P4-CPU), which are for chess about 30% slower than >>the old PIII-CPU's, aren't they? >> >>The Xeon-System would be equal to a 4410 MHz PIII-Mhz. >> >>Am I right? > > >That I really don't know. I have not tried a P4 xeon as of yet so I don't have >any >data from personal experience... Here are some data for Chessbaseproducts: http://h-j-s-.bei.t-online.de/page5.html In the last column are the values for P4-1.8 Ghz which show a performance like an Athlon XP with 30% lesser CPU-Speed.
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