Author: Robert Hyatt
Date: 10:08:21 06/19/02
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On June 19, 2002 at 10:30:39, Brian Richardson wrote: >On June 19, 2002 at 00:39:23, Robert Hyatt wrote: >>Two points: >> >>1. The 21264 runs Crafty at > 800K nodes per second using a single processor >>at 600mhz. What 32 bit single processor can run crafty that fast? Answer: >>zero. >> > >Actually, my AMD 1900MP runs Crafty slightly faster than both the single and 2 >cpu Alpha WAC nps test results, albeit at about 1600MHz, not 600. > >Of course, just having 64bits is not enough. MIPS was 64 bits in Oct 1991, but >broad industry support requires other things, like lots of software, etc. >Otherwise, Digital might have bought Compaq. > >That said, I decided to use 64 bit bitboards in Tinker (baed on Crafty) 4 years >ago in anticipation of 64 bit Intel processors. I did not figure that Intel >would be several years late. > >Brian Your single-cpu machine breaks 1.2M nodes per second? I haven't seen such results from any machine I have run on (32 bit machines anyway, limited to a single CPU)...
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