Author: Gian-Carlo Pascutto
Date: 14:54:03 09/17/04
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On September 17, 2004 at 17:49:50, Dann Corbit wrote: >On September 17, 2004 at 16:56:52, Gian-Carlo Pascutto wrote: > >>Abstract: >> >>"In this project it is examined how the use of a specific data structure called >>a bitboard affects the performance of parallel search." >> >>Conclusions: >> >>"Our experiments showed that speedup was not near ideal using many processors. >>Whether or not this was due to the use of bitboards is unclear." >> >>So, what was the goal of this research again? :) >> >>Kudos for including your source in any case - at least your results can be >>verified and further investigated, even if you didn't really manage to produce >>much useful results... > >I think everyone is being a little harsh. > >Similar to the paper by Marcel V.K., it is an interesting piece of work. It is >easy to read and understand. > >Of those people who have managed to accomplish a parallel implementation of a >chess engine (I am guessing that there are less than 10 in the world) only a few >have bothered to explain what they are doing, and only Dr. Hyatt and Mr. >Rasmussen have given out their source code. > >Writing a parallel chess engine is not trivial in the least, since it definitely >requires an understanding of multithreaded programming which is also fairly >unusual. > >In addition, truthful scientific research should often end with "We're not too >sure what we really have demonstrated here." when that is the real end result. > >If someone wants to write a multithreaded chess engine, where would you send >them? > >I would point them to this paper, straight away. Sure, but what has it got to do with "bitboards and parallelism"? It seems he set his goal too high. Just a well-working parallel program is already quite hard. I believe this may have been discussed before the paper started even, as he was a poster here? I won't argue that these people are doing good things but to call this scientific seems to be quite far-fetched to me. -- GCP
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