Author: Anthony Cozzie
Date: 07:17:37 07/28/04
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On July 28, 2004 at 04:44:51, Tord Romstad wrote: >On July 27, 2004 at 13:52:49, Anthony Cozzie wrote: > >>Perhaps that is a bit extreme :) There really aren't that many parallel >>programs out there: >> >>The Baron (dual only), Crafty, Diep, Fritz, Junior, Sjeng, Shredder, SOS, Zappa >>(very little testing) > >Amy, Hydra, Nejmet. I am sure there are others, but I can't remember any at >the moment. Hmm, I didn't know Amy and Nejmet were parallel. Do you know what method they use? >I don't doubt that it is very difficult (although "one of the most difficult >programming tasks out there" is a pretty extreme claim) Well, first we must define "programming task" :) I do not include algorithms in this description. In other words, I mean: given an algorithm, create machine code (through compilers if necessary) that implements it. In my opinion, parallel algorithms are many times more difficult than serial algorithms, and alpha beta search is one of the more difficult ones. , but I think the >small number of parallel programs has to do with lack of interest as well as >difficulty. How many programmers have tried to parallelize their engines? >I doubt that the list would be much longer than the list of successful >implementations above. I think that is mainly due to a lack of access to dual machines. Most of the people who tried have been the ones with reasonably strong programs already, and no one who failed would be talking about it ;) anthony
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