Author: Robert Hyatt
Date: 20:16:56 02/06/99
Go up one level in this thread
On February 05, 1999 at 18:51:15, Eugene Nalimov wrote: >On February 05, 1999 at 18:27:42, Dann Corbit wrote: > >>On February 05, 1999 at 17:53:57, Eugene Nalimov wrote: >>[snip] >>>Here I have Dell dual PII/400 and Digital dual Alpha 21164A/500. >>>Based on my experience, those machines have almost identical >>>performance - even on Crafty, which does a lot of 64-bit operations, >>>Alpha is only marginally faster. My feelings are confirmed by >>>SpecInt95. >>> >>>I know that 21164A is slower than 21264, but Pentium/400 is not >>>the last processor from Intel, too. >>> >>>The real Alpha advantage lays in 64-bit pointers - it's ideal for >>>huge databases. But not for chess, and not with 32-bit NT. >>What about 6 piece tablebase files and 100 million position opening books? >>The greatest advances will come from things of that nature, unless some >>fundamentally new algorithm is invented. >> >>So the Alpha should be good for chess, given a 64 bit OS. > >I don't beleive *any* current machine (let alone Cray or some >1000-CPU animals) will handle 6-man tables in a near future. >Even if you'll write generator in a better way than mine was >written (I made some design decisions that simplified it, but >slowed it down and/or increased its RAM usage), it'll still >work for a month to generate simple pawnless TB. Size of the >TB will be ~55 time larger than for average 5-man TB. 10Gb >for single TB (or 100Gb for complete set - including one TB >with pawns and all promotion cases) will be too much for a >reasonable machine in the next few years. some 6 piece files have already been done on a Cray by Lewis Stiller. But they are _very_ big as you point out. But on such a machine, you use different algorithms that vectorize better... where the cray can easily be 1,000 times faster than the fastest PC ever built... > >I agree that after those years Alpha will be better suited for >handling of those huge resources than x86. But I still beleive >that Intel will resolve its problems with IA-64, as it resolved >problems with CISC that many beleived will forever harm x86. Or >that something else will happen. Five years is a very long term >when you are talking about computers. > >Eugene
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.