Author: Robert Hyatt
Date: 08:43:10 05/02/01
Go up one level in this thread
On May 02, 2001 at 02:32:27, Chessfun wrote: > > >>A SMP version of Tiger exists. Actually existed last year. >>A friend of mine went on a long hollyday last year, and instead of leaving his >>dual system unused at home, he lent it to me. >>I developped a SMP version on top of Chess Tiger 12.2. >>But as I already told several times SMP was not a priority for me. So once I had >>SMP working, I disabled the code in Tiger's source code. I did not erase it of >>course, I just deactivated the relevant parts of code. >>Since then, Tiger has evolved on many points, including a different internal >>move coding and a different hash table structure. >>So now I cannot just reactivate the SMP code. It will not work directly. I need >>to reactivate it and adapt it to what has changed in the latest Tiger engines. > >>It's not a lot of work. The principle of the SMP algorithm does not have to be >>rewritten, it's just a matter of adapting the code. > >>I just asked for a little delay in order to do that and to double check that >>everything was working. > >>You can have your doubts about this SMP version, but after all if I send a SMP >>Tiger that crashes in Cadaques, I will be the one to look stupid, not the >>organizers of the Kramnik match. I'm willing to let a lot of hype slip by, but not _everything_. It seems you are saying you developed an SMP search over a weekend. I have too much experience with parallel search to believe that. I don't think I could even steal my SMP code and move it into something like gnuchess in a single weekend, and get it working reliably. Believe me, this is _not_ a weekend task. It is not a month task. It is really not a year task. I would not ever believe there is an SMP Rebel until there is a windows version of Rebel. DOS is _not_ capable of running on an SMP platform itself, much less managing threads in any way... I have a _really_ hard time believing that a robust SMP algorithm is a week-end project, unless I am a far worse programmer than I believe. And unless _everybody_ else that has done one is also pretty incompetent as well... > >Actually I have seen to many of your ideas these past few months actually come >to pass to doubt either your word that one existed, or that you could have got >it working with the additional changes since 12.2 within a stated timeframe. > >It is a shame if one had existed that after April 8 at CSS the organizers were >not contacted immediately. > > >>Completing the DF-DJ match has taken a full week, and that was the amount of >>time I have asked for. It was possible to run the DF-DJ match, and then let the >>winner play against SMP Tiger. > >That really don't sound right as that implies Tiger gets a bye into the final. >Naturally you could have run a tourney of 24 games then insert Tiger to play >both the Deeps. > I agree. The "last entry" has the best chance. > >>Some people have said that I have kept a "secret" around the SMP Tiger. That's >>not really the spirit. I have no plan to commercialize the SMP Tiger in the near >>future, so I was not trying to keep a secret in order to create a surprise. > > >No I understand what your saying. You have always said SMP wasn't something you >were in a rush to get done. But now what we actually have is a working 12.2 that >you say you could have got ready in 2 weeks. One week prior to the match between >the Deeps then it would be ready. > >With you previous statements on SMP what made you originally spend the time >implementing it in 12.2? > >>Actually I am currently working on another project, which has a higher priority >>for me, and this one can be called a secret. It will not be a secret anymore in >>a few days. Actually I think a few people can already guess what I am working >>on. > >My guess. A Tiger for Palm ! > >Sarah. I _really_ dislike this argument. "I am not telling anybody what I am doing, but I am certainly going to be pissed if they exclude me because they didn't ask, not that I would have told them anyway." I think the exclusion of Ferret is a _far_ more serious issue that seriously damages any credibility this "qualifier" might possibly have had...
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