Author: Mike Byrne
Date: 21:00:48 12/25/04
Go up one level in this thread
On December 25, 2004 at 18:00:21, Javier Gamero wrote: >Thanks for the useful answers. > >I have looked in "Selective Search" ratings and Shredder 7.04 is around 2700 at >1000MHz (it seems a bit high), so in your dual machine (2x1.7GHz) it must be >around 2800, and then Crafty at full speed must be about 2600. It is probably a >bit high, you did a "wild" estimation of 2550 USCF ant it could be aprox 2450 >(FIDE). So I "prefer" your 2450 value as a first approx. > >I have a problem with "intensity" scaling. At int=1 and at int=50 you think >Crafty is performing 1200-1300 and 1500-1600 respectively. It translate nicely >at the usual rule 100 points per treble speed. Being 1500-1600 similar to your >own ELO, I'd put pretty much confidence in those values (being aware that they >are approximations anyway). > >The problem is the jump from int=50 to int=10000 (full strength?). It *doesn't* >translate nearly well to Crafty's real ELO. If int=50 is ~1550 ELO, int=10000 >would be around 2080 ELO, hundreds of point below its real full strength. This >suppose almost 200 ELO per treble speed! (or almost 120 ELO for double speed!). >It looks unreasonable, something is "happening" here. Let's backup -- my numbers are estimates - if int==1 and 1200 elo, then when int==50, Crafty must be really close to 1800/1900 on my machine and when int=10000, then 2500/2600. I problaby underestimated Crafty when int==50 because I generally do not not play with mt=2 when using int and I'm "used" to playing Crafty and perhaps I do better than I should at the lower levels. Other people have told me that Crafty is stronger than my estimates at the lower levels. Your arguments supports that theory and I tend to agree with that as well now. > >Why is so much difference between int=50 and int=10000? That diff is too big for >being explained just by any slowness the new "intensity" code can produce even >at 10000. Do you have any data about the nodes-per-sec Crafty is doing at those >intensity values? (In my GUI, Crafty doesn't show NPS count when using >"intensity"). > >My ELO is similar to 1600 as well, so I cannot test usefully what level of >strength Crafty has with int=10000, but I can try a doubly approximative >estimation using some CM personalities :-) . But I know two chained >approximations can lead at one coarse result.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.