Author: Robert Hyatt
Date: 07:08:31 04/28/01
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On April 27, 2001 at 23:49:24, Robert Hyatt wrote: >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.. > That is wrong. Each PPC processor communicated with only 16 chess procesors, not 32. Not sure where I got 32 other than it was late and I was tired... > >> 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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