Author: Michael Fuhrmann
Date: 19:17:19 05/17/00
Go up one level in this thread
On May 17, 2000 at 18:00:51, Robert Hyatt wrote: >On May 17, 2000 at 16:00:42, Joshua Lee wrote: > >>I was wondering the Ratings of the Different Mainframe computers of the past >>like Deep Blue 1 and 2 and Deep Thought and how many ply they looked ahead? >>Also What Clock Speed would a PC need to be equivalent? These below are what i >>have found while the Processor speed if on a PC is my Guess. >> >>I have found different things on the internet. Here is my list: >> Deeper Blue 1997 15 Ply 2817 (USCF) 200 Million NPS >>2.048Thz > >The above is wrong, based on their output posted on their web site. They >were searching (typically) 10-11 plies in software, plus another 5-7 plies >in hardware. IE the very minimum depth they would see was maybe 15 plies, >but more common numbers were 17-18. Look at the IBM web site, under the >Deep Blue section, and notice the depths, which are given like this: >11(6). That means 11 plies in software + another 6 plies in hardware, for >17 plies total. > > > >> Deep Blue 1996 12 Ply (*)14 Ply 2642(FIDE?) >>(*2535) 100 Million NPS 1.024Thz > >See above. DB2 was about 2x faster, although it had a much bigger evaluation >than DB1. The depths were fairly close, with DB 2 at best going 1 ply deeper. > > >> Deep Thought II 1991 6-7 Million NPS 64Ghz >> Hiarcs 7.32 2009 6.272.000-6.308.000 >>64Ghz >> Cray Blitz T90 ???? 5-7 Million NPS > >Cray Blitz could hit this number on the T932, which was first delivered maybe >5 years ago or so. We didn't play many games, but did see search depths of >11-12 plies in the middlegame... We didn't use recursive null-move R=2 which >would likely have added at least 2 plies to that figure. > > > > >> Hiarcs 7.32 2008 3.136.000-3.172.000 >>32Ghz >> Deep Thought 1989 2480-2500 (FIDE) 2 Million NPS >>20Ghz? >> Hiarcs 7.32 2006 1.568.000-1.604.000 >>16Ghz >> Cray Blitz C90? 1995 1.5 Million NPS > >About right. depth of 10-11 plies. the T90 added about 1 ply. > > >> Hiarcs 7.32 2005 784,000-820,000 8Ghz >> Deep Thought 0.02 1988 2551(USCF) 2451(FIDE?) 750,000 NPS* >>7.453Ghz >> Deep Thought 0.01 1988 720,000 NPS >> Chiptest-M 1987 500,000 NPS >> Hiarcs 7.32 2003 392,000-428,000 4Ghz >> Hitech 1995 200,000 NPS >> Hiarcs 7.32 2001 196,000-232,000 2Ghz >> Hitech 1988 2413(USCF) 2363 or 2313FIDE 175,000 NPS >> Hitech 1985 2350 >> Belle 1983 2263 160,000 >> Hiarcs 7.32 2000 98,000-134,000 1Ghz >> Hiarcs 7.32 2000 2660(LCTII)2460(FIDE EST) 87,000-123,000Nps >>Middlegame >> Chiptest 1985 50,000 Nodes Per Sec >> Belle 1978 >> >> ELO and Ply Depth >> 2650 15Ply >> 2625 14Ply Only this deep in >>the Endgame (Deep Blue in the Middlegame) This >>Matches elo - Ply >> 2600 13Ply >> 2575 12Ply Deep Thought 1989 >>this Matches elo-ply >> 2550 11Ply Sometimes 11Ply in the >>Middlegame >> 2525 10Ply >> 2500 9Ply But Usually 8 or 9 >> 2475 8Ply Hiarcs Looks atleast 8 >>Complete Ply in The Middlegame (this matches LCT II -200 (2690- 200 =2490) >> 2450 7Ply >> 2425 6Ply >> 2400 5Ply >> 2375 4Ply >> 2350 3ply Hitech 1988 However >>this doesn't match up obviously not everybody is playing with the same Ply hehe >>haha... >>I've heard before how much doubling clock speed results in but it was an SSDF >>thing(which must be atleast 150points too high??) but against humans this is a >>different story. >> >>Some of the things i've run across online have mentioned the experiments to >>figure out ply in relation >>to elo they said sometimes 1Ply deeper meant like 80-192elo >>and that knowledge meant 200-300 more elo but i am not sure about this i just >>want to hear other opinions. Thankyou >> >> >> > >doubling the cpu speed is generally said to produce 50-60 rating points. >Since the typical effective branching factor is around 3.0, every time the >speed is tripled, we get another ply, and using the 60 point figure above, >a ply would be about 90 rating points, roughly. But there is nothing that >says that as we go deeper this doesn't taper off. Nor is there anything that >says that as we go deeper, the gain doesn't actually get larger... > > Do you have a hunch which is true? > > >> >> >> >>*according to the Deeper Blue - Kasparov Match article in Chess Life >>http://www.frc.ri.cmu.edu/~hpm/book97/ch3/ >>http://mitpress.mit.edu/e-books/Hal/chap5/five4.html >>http://www.geocities.com/SiliconValley/Lab/7378/comphis.htm >>http://foxnet.cs.cmu.edu/people/spot/frg/Berliner.txt >>see also Dejanews search for FAQ WWW Hypertext Edition (rgc Groups FAQ) >>In 1988 DEEP THOUGHT and Grandmaster Tony Miles shared first place in the U.S. >>Open championship. DEEP THOUGHT had a 2745 performance rating. This matches up >> 2745-180 = 2565 >> >>In 1985 HITECH achieved a performace rating of 2530 >>2530-180 = 2350 >> >>In 1983 Belle became the first computer to beat a master in tournament play and >>the first computer to gain a master rating (2263) > >This is wrong. Belle became the first program with an established rating of >over 2200. (2208 was the number.) They were awarded the title "life master" >by the USCF at the 1983 WCCC event in NY. Cray Blitz beat a master in 1981 to >win the Mississippi State Chess Championship. The master it beat was Joe >Sentef, and the game was published in Chess Life in late 1981 or early 1982.
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