Author: Sandro Necchi
Date: 04:11:35 02/27/05
Go up one level in this thread
On February 27, 2005 at 06:22:42, George Tsavdaris wrote: >On February 27, 2005 at 06:09:15, Sandro Necchi wrote: > >>On February 27, 2005 at 06:00:06, Kurt Utzinger wrote: >> >>>On February 27, 2005 at 05:54:35, Rex wrote: >>> >>>>With all that was learned out of IPCCC I sure would like a "free" update. >>>> >>>>Enjoy >>> >>> I am almost sure that there will be no such update. >>> At Paderborn an experimental version of Shredder 9 >>> is participating and nobody knows about the real >>> playing strength of it. >>> Kurt >> >> >>No, we have used the same 9.0 version. >> >>We only used a modified book for the tournament...an intermediate version for >>the next WCCC or match against Hydra hoping someone can arrange it. >> > > I really hope a match between Shredder and Hydra, now that you know the huge >strength of the second and you will be prepared properly. Yes, last year we could not prepare properly also because I was very busy with my work and to move to Lucca. Now we are more and I am planning to make more work too even if I am moving to another house this summer, still in Lucca. Also the bug problem, which I discovered, "made me crazy" trying to change the book to avoid problems without having the time to do it. With a reliable version is different as I can use the material which is ready and add more to it. >But i would like a 14 >or more games match, for having a good indication of the strength..... > > Since many believe that hardware differences is not so important as we think, >while i believe that in this high level even small hardware differences can make >the difference, can you give an approximation of the expected ELO difference >between: >"Shredder+Dual" , "Shredder+Quad" , "Shredder+8 CPU's" , "Shredder+16 >CPU's"....? Well, we need to improve this as only 2 processors are used fully and the others partially only. Stefan did not have time enough to work on this, so he can improve this a lot spending time enough. I believe what follows, comparing with one processor only: 1. Dual = +30 Elo 2. Quad = +40 Elo 3. 8 cpus = +50 Elo (we did not used this harware yet) 4. 16 cpus = are not supported yet as the max is 8. P.N. 1. these are estimates by me as I have no data to support this rather than my impression looking the games. 2. These data are referred to a 32 bit program version, and not fully optimized to use more than 2 processors. This means that there is a lot of room for improvements. 3. The program strenght does not improve very much because if Shredder does not find a solution in a reasonable time it will take very long to find it. This can be improved too. > >I would like to hear your opinion and your guesses about this....... There you have it. Ciao Sandro
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