Author: Robert Hyatt
Date: 09:07:37 02/16/04
Go up one level in this thread
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... > >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.