Author: Robert Hyatt
Date: 20:49:24 04/27/01
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On April 27, 2001 at 11:52:26, Joshua Lee wrote: >I think i am missing something important or we all are? those chips were >supposed to be 200Mhz PowerPC's in Deep Blue wouldn't they use the same but >faster in DB2? Wrong chips. DB played on an IBM SP2 which used 32 PPCs as the base cpus. Connected to each PPC was a pair of VME bus cards with 16 of Hsu's custom chess chips on each board. _those_ are the chips we are talking about when we say 20mhz and 24mhz.. > For a 20 or 24Mhz chip at .60 Microns to perform a millions of >nodes per second you would have to have a RISC design Wrong idea. The chips are not general purpose CPUS (the chess chips). They are ASICs that were designed to specifically implement the chess functions needed (included a hardware alpha/beta search). > and be at .10 then you >would need more than i can figure as far as i can tell at 20Mhz if it were like >a regular chip in a home computer it would be running at 10,000 Nodes per second >(on my 500Mhz P3 i get tops 400Knps i figure on a 100Mhz you would get 50Knps >and on 50Mhz you would get 40Knps and on a 20Mhz you would get 10Knps)but that's >just it it's not a regular chip it Only runs a chess program see what i am >saying that is just too big so without saying much further we need a real >comparison actual results with the "Chess Specific chip " >We can't compare a Quad Xeon which does millions of calculations to keep widows >from crashing, the taskbar running, time of day, Kernel32.dll, yadda yadda. >The processors we have in our computers are not even 50% efficient probably not >even that when it comes to something that is designed to do 1 thing and do it >really really well. So probably if our computers were doing one thing at their >.18 or even .60microns they would be hitting millions of nodes per second if not >1 billion. But this is just my guess as i am not an engineer.
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