Author: Vincent Diepeveen
Date: 09:18:13 02/16/04
Go up one level in this thread
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. 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.
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