Author: Robert Hyatt
Date: 10:31:58 02/16/04
Go up one level in this thread
On February 16, 2004 at 12:18:13, Vincent Diepeveen wrote: >On February 16, 2004 at 12:07:37, Robert Hyatt wrote: > >>On February 16, 2004 at 11:37:54, Vincent Diepeveen wrote: >> >>>On February 15, 2004 at 15:14:16, Slater Wold wrote: >>> >>>>On February 15, 2004 at 15:09:57, Bob Durrett wrote: >>>> >>>>>On February 15, 2004 at 15:06:26, Slater Wold wrote: >>>>> >>>>>>On February 15, 2004 at 14:34:08, Bob Durrett wrote: >>>>>> >>>>>>> >>>>>>>I envision a standard equipment rack with 32 or 64 Hydra cards, a power supply, >>>>>>>possibly a conventional computer for orchestration, and fans. >>>>>> >>>>>>Do you think Hydra was running on a single computer, with a single card? >>>>> >>>>>Actually, that is what I thought. What was actually done? >>>> >>>>4 Dual Xeon 2.4Ghz PCs & 8 FPGA cards (2 per PC) >>>> >>>>The PCs are probably $5k a piece. >>> >>>I agree here. >>> >>>> The cards, about $500 a piece. >>> >>>$3000 a card at least. >>> >>>Hydra gets sponsored by a FPGA company called Xilinx. >>> >>>I hope you realize that it takes at least 10 seconds for Hydra to get the 8 >>>cards to run well. >>> >>>So you can never use it in blitz in fact. Something like 30 0 is where it would >>>excel at though when having a quick operator. >>> >>>>$25k worth of hardware, just to draw Shredder 8 ($50 program) on a PC. >>>>Still think Hydra is the 'engine of the future'? :) >>> >>>Chrilly is good at peeking at 1 or 2 tournaments before people figure out how to >>>beat his creation. 1998 nimzo was very aggressive and could win by doing that >>>some games and was tactical strong because of the agressive tuning. >>> >>>2003 he has something even more aggressive. by default a passer at the 7th row >>>is worth more than a piece which usually is like 4.2+ pawns. >>> >>>Note we had a major discussion there at IPCC 2004. >>> >>>To quote it therefore in the Chrilly language, a passer at 2nd row is worth in >>>Hydra about 10 pawns. >> >>That is impossible. Because it would _never_ promote the pawn since a queen >>would then be worth less than the pawn on the 7th... > >pawn = 64 in hydra. I'm not sure why that would matter. pawn=64, 10pawns = 640, queen = 9pawns. All the same thing, when everything is relative to the value of a pawn... > >You will understand why in diep - hydra, this hydra wanted Nxd2 for white each >move giving away a knight each move. The pawn was worth more than a knight which >is like 4.2+ in Nimzo. > >> >>> >>>You will realize then very well that it will give away a piece always for such a >>>passer and therefore hydra always pushes all pawns it has, good or bad. >>> >>>Such ultra agressive play is what Hydra shows. It's a dimension more agressive >>>than nimzo98. >>> >>>Gives very interesting play, no doubt. >>> >>>But no correspondence player will be able to use it very well as it has very >>>poor hashtable management (no hashtables last 6 plies at all). So the few guys >>>who do have money to buy such creatures will not be interested. >>> >>>Therefore the only interesting thing from Hydra is when the Sheikh of the United >>>Arab Emirates sponsors it to play some matches against a strong grandmaster. >>> >>>>>> >>>>>>If so, you're wrong. >>>>>> >>>>>>>Feasible? >>>>>> >>>>>>Sure. Been done before. Google for 'Deep Blue'. >>>>>> >>>>>>>If so, what performance could be expected? >>>>>> >>>>>>'Diminishing returns' comes to mind... >>>>>> >>>>>>>Note that it might not be necessary to combine the Hydras in the most efficient >>>>>>>way possible. Maybe not SMA. >>>>>>> >>>>>>>Bob D.
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.