Author: Aaron Gordon
Date: 08:46:12 02/18/02
Go up one level in this thread
Actually you can hit 1M nps in Crafty on a regular old AMD Thunderbird at 1.65GHz. That means you'd need ~330GHz to hit 200mnps. Of course if you were to run a system such as this (say, 256 cpu's) in a cluster then you'd lose a heck of a lot of NPS. Also lets say we used Myrinet and TTL_Papers and 'total' gained a speedup of 128 x one cpu with 256 cpu's. I'm not sure how realistic that number is but it 'seems' alright if you consider using an experienced cluster designer along with good code. This will of course put you at 128mnps using the 1.65GHz tbirds. By the time you get something like this built there will be 2GHz AMD Thoroughbred cpu's (0.13 micron AthlonXP's). If you figure 1 * 2 / 1.65 then that 2GHz XP would put you at 1.21212~Mnps. That x 128 = 155.15Mnps. While not as fast as Deep Blue I think most of todays programs should outplay Deep Blue with a little tuning (like cutting back on the selectivity/pruning a bit). In the case of CT14 & Fritz7 actually running at this sort of nps then most definately it will exceed Deep Blue strength. Perhaps even around 50-80mnps. Crafty at ~155mnps should be very close Deep Blue also. If anyone tried to compare Crafty with 1M nps at 2500 ELO they're nuts. I've seen people doing this for years now in ELO lists (perhaps as a baseline). I've seen people using old crafty's on slow hardware & rate it 2500.. later on they get faster hardware & a newer, stronger crafty.. guess what? 2500. Now we've got 1GHz+ cpu's and Crafty 18.13 destroy's 16.19 for example... yet guess what? Still 2500. I don't think so. At 1M nps 18.13 must be at the very least 2600. From what Hyatt says Deep Thought was ~2650 at 2M nps. If you consider a 50-60 increase with Crafty going from 1M to 2M nps thats 2650-2660 right there. Aside from the math this is my opinion. I would love to hear any replies on this matter, suggestions perhaps, etc. On February 17, 2002 at 23:07:02, Robert Hyatt wrote: >>11. also if you say 10 is true, could you just speculate on what mhz it would >>take using the type of processors we are used to today(amd and intel)(not sun or >>alpha), to be able to play on the Deep Blue level? > >I really can't say. For example, 2.0 ghz is enough to get Crafty to 1M >nps or so. Therefore, assuming everything scales linearly (memory speed >and so forth) then 400ghz would get me to that 200M nodes per second. That >is a _long_ way off. If it actually happens >>read. >>kburcham
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