Author: Vincent Diepeveen
Date: 08:37:54 02/16/04
Go up one level in this thread
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. 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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