Author: Robert Hyatt
Date: 14:49:58 04/03/02
Go up one level in this thread
On April 03, 2002 at 15:41:31, Tom Kerrigan wrote: >On April 03, 2002 at 11:44:45, Robert Hyatt wrote: > >>Again this depends on the FPGA you are looking at. DB processors ran at >>20-24mhz, and searched at 2M-2.4M nodes per second each. Hsu later reported >>that at least a factor of 15 speed-up would be possible with newer fab >>processes. He predicted 36M for .18u as a first guess... > >Uhhhh, are you clear on what an FPGA is? DB had absolutely nothing to do with >FPGAs in any way, shape, or form. You're comparing a motorcycle to a paddle >boat, and I'm not even sure what conclusions you're trying to draw from that >comparison. Yes I am aware of what an FPGA is. I believe that a SOTA (state of the art) fpga can run just as fast as the 3 micron (three micron, not .3) micron process ASICS used in the original DB hardware... 3 micron ASICS in DB only ran at 24mhz. An FPGA can certainly be run at that clock speed... > >>They've been around forever in various forms. Look up Ken's paper on >>Belle. Or his paper "An FPGA based move generator for the game of Chess" >>or any of several other publications including the second edition of >>"Chess skill in man and machine." >> >>Belle used them in 1980, for certain. I don't know how long they had been >>out by then... > >The way I remember it, Belle was a mess of PALs and TTLs. If you just meant that >Belle used programmable logic, then yeah, I'll buy that. PALs have been around >forever. > >-Tom I'm only quoting from the title of a paper Ken wrote, which was "An FPGA chess move generator" or something to that effect (I quoted the exact title elsewhere in this thread...) I think you can locate a reference to it by searching for "Belle chess machine" on Google...
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