Author: Robert Hyatt
Date: 14:30:32 10/02/02
Go up one level in this thread
On October 02, 2002 at 16:39:28, Vincent Diepeveen wrote: >On October 02, 2002 at 08:21:06, Joachim Rang wrote: > >>On October 02, 2002 at 07:41:19, Jorge Pichard 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)? >>> >>> >>>I agree that if they can get theit hands on a dual 2.8 Ghz it would be a little >>>bit faster than 8x 900Mhz. >>> >>>Pichard. >> >>On this machine DF7 makes 2950Knodes/s. Name me a Dual-Board with this speed. >>Don't forget the speed for chessprograms of the P4 is approximately 30% slower >>than PIII or AMD. > >But you can only run it 4 cpu's at that 8 processor machine. >So it's more like 4 x 450k nps = 1800k nps. minus some loss = 1600k nps. > >note that non-commercial deep fritz is faster than commercial deepfritz >*perhaps*. Just guessing. It seems at dual K7 at least. > >Perhaps it is my imagination that Frans got more nps at world champs than >deepfritz (6) got at my dual k7 :) > >I heard some rumours about cache line length and writing within the same >cache line (64 bytes at DDR ram and 128 at dual P4 and 32 at old dual P3). > >Anyway. 8 processor Xeon 933Mhz ==> 1.6MLN nodes a second *at most*. It should go faster than that. I go 1.6M nodes per second on a quad 700 xeon. 2M L2 might help even more on the 8-way box... > >2 processor K7 ==> 2.2 MLN a second > >Best regards, >Vincent
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