Author: leonid
Date: 18:51:14 07/26/00
Go up one level in this thread
On July 26, 2000 at 21:44:06, Jason Williamson wrote: >On July 26, 2000 at 21:20:33, leonid wrote: > >>On July 26, 2000 at 21:03:27, Jason Williamson wrote: >> >>>On July 26, 2000 at 19:45:15, leonid wrote: >>> >>>>On July 26, 2000 at 18:29:36, Torstein Hall wrote: >>>> >>>>>On July 26, 2000 at 18:22:47, leonid wrote: >>>>> >>>>>>On July 26, 2000 at 17:26:01, Tom Kerrigan 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. >>>>>>> >>>>>>>Pentium III/800. On a K-6/400 I figure I'd get 350k NPS or so. And that's for BK >>>>>>>positions; if I did a 5 second run of WAC, I'd get 780k NPS or so. >>>>>>> >>>>>>>-Tom >>>>>> >>>>>>If I am not missing there something, your numbers are better that the Fritz >>>>>>have. If you could someday check at what speed Fritz 6 goes on your hardware and >>>>>>send me the numbers (best with some concret position), it will be very nice. Or >>>>>>just put them here. If you numbers are so good, like I see them, you should be >>>>>>really proud to say them in public. >>>>>> >>>>>>Leonid. >>>>> >>>>>What are you talking about? Its more to a chess program than a high NPS! Even >>>>>when doing a brute force search. Perhaps the Fritz eval is more complex etc. >>>>>etc. The proof is in the the chess game it plays, not the NPS. >>>>>Torstein >>>> >>>>If you will see all the best programs you will find that biggest part of them >>>>have surprisingly close NPS, leaving aside few exceptions. When you will write >>>>your program as amateur (and ever more on C) there are very few chances that >>>>your NPS will come even close to those numbers. If your NPS is actually not only >>>>close but even better that the best monsters numbers, you have good chance to >>>>reach them all later. >>>> >>>> >>>>I was amazed by 650K on 800Mhz with a reason. Recently I found that numbers of >>>>NPS for this computers should be around 2 000 000 NPS for minimax. Only around >>>>25% of those numbers should be really reachable when all the advanced technics >>>>of search is used. It give around 400K for 800Mhz Pentium. Raaching 650K is more >>>>that simply good performance. >>>> >>>>Leonid. >>> >>>On my machine: >>> >>>Junior 6a roughly 250-300K NPS Rating 2650 >>>Fritz 6a roughly 300-350K nps Rating 2650 >>>Crafty 17.x 180-200K nps Rating 2550-2600 >>>Hiarcs 7.32 50-75K nps Rating 2600 >>>Little Goliath 2000 300-500k nps Rating 2500-2550 >>>Phalanx roughly 50k nps Rating 2500 >>> >>>and so on. Arg NPS I see is roughly 100-200k on my machine by the strong >>>amateurs and around 200K+ with the exception of Hiarcs. Yet the difference in >>>speed isn't much between the top amateurs engines and top commercials engines, >>>so where does the strength lie? In the evaluation functions. Don't worry about >>>nps, it has about as much meaning as BOGOMips do in linux. >>> >>>Jason >> >>Thanks for numbers! But on what computer? >> >>Leonid. > >Using one of my 2 Celeron 400s. (Dual Celeron 400 system.) Thanks! Leonid.
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