Author: leonid
Date: 15:25:31 07/26/00
Go up one level in this thread
On July 26, 2000 at 17:12:02, blass uri wrote: >On July 26, 2000 at 16:59:35, leonid wrote: > >>On July 26, 2000 at 13:40:32, Tom Kerrigan wrote: >> >>>On July 26, 2000 at 09:18:41, leonid wrote: >>> >>>>Hi! >>>> >>>>How ask Fritz execute brute force search? I have Fritz 6 but if it is possible >>>>for some other version (even better DOS version), please say me. >>>> >>>>Recently I went to see Fritz nodes per second performance. Very impressive! Only >>>>maybe I am missing exact numbers. NPS tend to grow when search is done by brute >>>>force. This is why I try to find where Fritz numbers stays in real. But Fritz, >>>>in dispite of its performance, is not exactly open minded piece of software. >>>>Even its NPS I was able to see only through my Hiarcs 7.32 program. >>>> >>>>Thanks in advance, >>>>Leonid. >>> >>>My search is selective only because of null-move. I believe this is also the >>>case with Fritz. >>> >>>With null move on, my program searches 634k NPS. (BK, short searches) >> >> >>On what hardware do you have 634k? I was very impressed with Fritz numbers only >>because they were between 220 and 320k on AMD 400Mhz. Your numbers are almost >>twice as fast. >> >>On the same hardware average NPS for other best programs were, for similar >>positions, between 140 and 180k. I see that you are more that lucky with >>numbers. >> >> >>>With null move off, it searches 655k NPS. >>> >>>The difference is 3.3%. >> >>Good to know that this difference is negligeable. >> >> >>>Basically, I wouldn't worry how much faster Fritz is without null move, for >>>three reasons: >>>1) The difference is probably pretty insignificant >>>2) You'd never want to run Fritz without null move in real-world situations >>>3) You didn't write Fritz >> >>With few exceptions (Hiarcs is the most flagrant one) I found that NPS is good >>indicative of the strength of the chess program. Inside of Hiarcs package (tried >>only few positions) Crafty had the best NPS immediately after Fritz. It is >>probably the most strong engin after Fritz as well. > >Junior searches more nps than Crafty but there are other strong programs with >less nps(Chessmaster6000 or shredder4 are good examples). > >Uri Is the Junior engin, like Crafty, or complet program, like Rebel? Leonid.
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