Author: Uri Blass
Date: 22:59:30 08/11/05
Go up one level in this thread
On August 11, 2005 at 20:57:09, Robert Hyatt wrote: >On August 11, 2005 at 14:37:56, Uri Blass wrote: > >>On August 11, 2005 at 14:00:24, Robert Hyatt wrote: >> >>>On August 11, 2005 at 13:57:36, Madhavan wrote: >>> >>>>On August 11, 2005 at 13:53:37, Robert Hyatt wrote: >>>> >>>>>On August 11, 2005 at 12:55:10, Thorsten Czub wrote: >>>>> >>>>>>1. Fruit >>>>>>2. Shredder >>>>>>3. Junior >>>>>>4. Crafty >>>>>>5. Zappa >>>>>>6. Diep >>>>>>7. Sjeng >>>>>>8. Jonny >>>>>>9. IsiChess >>>>>>10. My_fute >>>>> >>>>> >>>>>That will be a miracle. A single opteron CPU (single core) is 2x as fast as a >>>>>3.0ghz pentium. I, at least, will be running on 8 of 'em. That is a tough >>>>>disadvantage to overcome... >>>> >>>>Don't forget Fruit beta has got another 100 elo improvement. >>> >>> >>>Doesn't matter at all. a speed advantage of 16x is huge. Not insurmountable, >>>but _huge_ and very difficult to overcome. >> >>I guess that it does not gives more than 150-200 elo improvement because of >>diminishing return that means that being twice faster give only 40-50 elo >>improvement at long time control and not 70 elo. >> >>It seems that public fruit is about 150-200 elo better than public Crafty. >>I expect both WCCC fruit and WCCC Crafty to be better than the public version so >>it seems to me that fruit and Crafty have equal chances. >> >>Maybe Crafty has better chances because you could learn from Fruit's evaluation >>so you improved Crafty more than Fabien improved Fruit but only you can tell if >>looking at the source of fruit helped you to improve Crafty. > >That I can answer easily. I've not looked at the source of fruit. So there's >no way it could have helped. In fact, I haven't even seen a game fruit vs >crafty so I have no idea how the thing plays. I think that it is better if you look at the code because it probably can help you to find better ideas to improve crafty. <snipped> >Simple. Every year, every new version, "the new version is 60-80-100 elo >stronger than last year's version." Seen that over and over and over. :) For fruit it is correct so far and there is more than one version per year. Note that I do not expect fruit of today to be 100 elo better than Fruit2.1 because 2 months is too early for 100 elo improvement but I certainly expect 100 elo improvement in fruit to happen in less than a year because Fabien is better programmer than the programmers of the commercial programs(I also expect part of the commercial to improve faster thanks to learning from fruit). Fruit2.1 is from 17.6.2005 Fruit2.0 is from 24.12.2004 Fruit1.5 is from 17.06.2004 Fruit1.0 is from 17.03.2004 Based on different lists I find more than 100 elo difference between Fruit2.1 and Fruit2.0 and I remember similiar improvement with older versions of Fruit. You can say that it was not hard to improve old versions before Fruit2.0 but Fruit2.0 is already better than the public version of Crafty on one cpu and Fruit still has search bugs that fabien did not fix. Here are 2 rating lists when both fruit2.1 and fruit2.0 have more than 1000 games: http://www.miko42.de/turniere/blitzturniere/blitzrangliste.html Fruit2.1 2712 Fruit2.0 2608 http://www.husvankempen.de/nunn/rangliste.html Fruit2.1 2713 Fruit2.0 2607 Uri
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