Author: Uri Blass
Date: 11:36:52 05/06/01
Go up one level in this thread
On May 06, 2001 at 13:51:16, Vincent Diepeveen wrote: >On May 06, 2001 at 09:38:05, Uri Blass wrote: > >>On May 06, 2001 at 09:12:17, Vincent Diepeveen wrote: >> >>>On May 05, 2001 at 21:44:48, stuart taylor wrote: >>> >>>>On May 05, 2001 at 08:32:31, Jorge Pichard wrote: >>>> >>>>>According to this performance rating of this match, the previous Deep Fritz had >>>>>a performance rating of 2683. If the newer version of Fritz 7 gain an additional >>>>>45 rating points in strength, plus the advantage of being able to use faster >>>>>hardware for the actual Kramnik match, then we could conclude that Fritz 7 could >>>>>well be rated over 2750. >>> >>>So at a 8 processor Xeon according to this PR nonsense it would >>>be rated like 3000 :) >> >>I do not see how did you get 3000 >>The 2683 performance of Fritz also was not tournament time control but at 1 >>hour/game. >> >>It is clear that Fritz like other known programs has no chance against kramnik >>and I do not see the point of playing against him. >> >>Deep Fritz is a known identity and I do not believe in the ability of chessbase >>to do big productive changes in Fritz after Deep Fritz. >> >>It will be more interesting to see Kramnik playing against a program that he >>even does not know the name of it when the program can be changed between the >>games when the only thing that he can know is that he is playing against a >>computer and that the organizers decided about the exact program that he plays >>before every game. >> >>These are the only conditions when a match against kramnik may be interesting. >>I believe that even at these condition the public will see kramnik as a >>favourite. >> >>Uri > >Oh well we completely agree on the outcome of a match, >nevertheless a 8 processor Xeon is 5.6Ghz in total. > >Versus a K6-2 450 is just 450Mhz and has very little RAM usual. > >At SSDF programs that run on 2 times faster hardware, >Let's quote the list: > >I see fritz 5.32 at K6-2 450 rated at 2547 >and the same program at a 200MMX rated 2477 > >Now we can argue long about relative speeds, but for >Fritz the k6-2 is about 2 times faster. whether it's 1.8 or 2.1 >is not that interesting. > >The difference is a full 70 points. >For junior 5.0 the difference is 100 points, though >probably a good reason to explain it would be that junior is in C++ >and fritz in assembly. > >Anyway, let's take the average and round it downwards. 80 points. > >Now i do not know how fast or slow a K6-2 with 128mb RAM is for >Fritz, but i know it's dead slow For DIEP. L2 cache is at busspeed >even (100Mhz only!) > >Now compare that to the huge shared hashtable at a 8 processor Xeon. >Even if we don't take that into account, then it's not hard to imagine >that with this new xeon core the machine is 14 times faster. Can be 10 >can be 16. For me it's not comparable the speed. More like 20 times. >For fritz it's less as that as it's in assembly but it also profits >from the new intel processor bigtime, so 14 times looks like >a cool rounded down estimate. > >So if we take deep fritz rating which by hand has been tuned down: > 1 Deep Fritz 128MB K6-2 450 MHz 2650 > >14 times faster if we take the 2 log out of that. then that's 3.58 > >If i multiply that with 80 rating points then > 2650 + 3.58 x 80 = 2650 + 287 = 2937 > >Closer to 3000 as to Kramnik's FIDE rating :) > >Now of course it's all a rude estimate. I do not believe speed >brings something for Fritz, but if we extrapolate speed and >search depth then OBVIOUSLY kramnik should lose the match with >BIG numbers. I am sure speed brings somrthing for Fritz. Speed helps all programs but I believe in diminishing returns so I do not believe that Fritz can get 2937 ssdf rating even with 8 processors. I guess 2850 ssdf rating for Deep Fritz with 8 processors. ssdf rating is of course not eqvivalent to human rating. Uri
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