Besides, we never had these discussions in the days of Cray Blitz, Mephisto, Deep Blue, or even Hydra.
Note that a hardware limitation might imply that a new Hydra or a program running on a non-MS machine (i.e. a mainframe) most likely cannot participate.
In fact I'd love to play against Hydra or any other supercomputer - I hope we'll get this chance.
Your book preparations were superb - as usual. In the last game we were out of book early with a slightly negative eval - then suddenly my CPUs showed 0% usage - i was worried and asked Hans. He told me we were back in book again - and when we came out we were clearly better :)
The game I liked most was the game against Zunami - I loved that trap for Tsunami's queen. I'm no OTB player, but this was clearly foreseeable :)
Regards,
Lukas
> The discussion about equal hardware is a bit odd. If the organisers have no specific rules about hardware, you can bring anything you like.
>
> Besides, we never had these discussions in the days of Cray Blitz, Mephisto, Deep Blue, or even Hydra.
>
> Note that a hardware limitation might imply that a new Hydra or a program running on a non-MS machine (i.e. a mainframe) most likely cannot participate.
100% agree with you. Why do so many people have a hangup over hardware?? You want even-Stevens? Go check out CEGT...
And you did right, and I'm interested in such events.
But the thread should have had the topic:
Rybka on 40 cores and with openingbook XYZ wins with perfect 9/9 score.
To use a very strong combination, and then to declare the engine as the winner, is rather amazing.
Quap
Was it with 40 PIII 400 MHz or maybe it was with 40 AMD K5 processors,...., etc?
But even then it would still be misleading since it will not specify what hash tables memory has been used, and what tablebases have been used and what exact hard disc drive has been used.
Dutch Open: Rybka 3i8 + 40 cores(Skulltrail 3.8 GHz+Skulltrail 4.2 GHz+Xeon 2x X5460 @ 3.4 GHz+Xeon 2x X5365 3 GHz+
Xeon 2x E5430 @ 3 GHz) + 40 GB DDR2 RAM hash tables + Seagate 500 GB Serial ATA Barracuda 7200 with all 5,4 tablebases + Rybka 3beta book, wins with perfect 9/9 score.
Nothing less than that for a title is misleading as it is the whole combination that won and not only Rybka.
Perhaps we could even add the hamburgers and beefsteaks and all the food the operator of Rybka ate since if he didn't eat them, he wouldn't be able open the PC for Rybka to run.
and here is Hans talking to FM Vincent Diepeveen about his cube during our game
Regards,
Lukas
> Dutch Open: Rybka 3i8 + 40 cores(Skulltrail 3.8 GHz+Skulltrail 4.2 GHz+Xeon 2x X5460 @ 3.4 GHz+Xeon 2x X5365 3 GHz+
> Xeon 2x E5430 @ 3 GHz) + 40 GB DDR2 RAM hash tables + Seagate 500 GB Serial ATA Barracuda 7200 with all 5,4 tablebases + Rybka 3beta book, wins with perfect 9/9 score.
I tried editing the title but it's cut at "Dutch Open: Rybka 3i8 + 40 cores(Skulltrail 3.8 GHz+Skulltra" :(
:-D
> Yes indeed, so the title should be something like:
> Dutch Open: Rybka 3i8 + 40 cores(Skulltrail 3.8 GHz+Skulltrail 4.2 GHz+Xeon 2x X5460 @ 3.4 GHz+Xeon 2x X5365 3 GHz+
> Xeon 2x E5430 @ 3 GHz) + 40 GB DDR2 RAM hash tables + Seagate 500 GB Serial ATA Barracuda 7200 with all 5,4 tablebases + Rybka 3beta book, wins with perfect 9/9 score.
I would have written:
"Rybka on 40 cores wins with perfect 9/9 score."
I wouldn't have mentioned the book because it was the Rybka3-book
(But I would have mentioned each book, which is not associated with Rybka)
How do you think:
If Rybka had won playing exclusivly on one of the machines on
http://de.wikipedia.org/wiki/Supercomputer, (IBM-Roadrunner looks nice, perhaps VAS can make a Compile for that machine)
should the hardware have been told of as an important information?
Or should the user be satisfied by hearing "Wow, Rybka had won again!"
;-)
Quap
> Actually this would be misleading also, since it will not specified exactly what these 40 cores were.
> Was it with 40 PIII 400 MHz or maybe it was with 40 AMD K5 processors,...., etc?
:-D
But it would show you dirctly, how that hardware is to be compared to the 'normal' machines.
It can be assumed that those important factors, which aren't mentioned (say: Processor Speed), are similar.
Quap
> To use a very strong combination, and then to declare the engine as the winner, is rather amazing.
Rybka refers to everything - the engine, the book and the cluster. Rule of thumb: if it's good, it's Rybka :)
Vas
>Rybka refers to everything - the engine, the book and the cluster. Rule of thumb: if it's good, it's Rybka :-)
Actually it's the other way around. The direction of the implication is not It's good => It's Rybka, since then you imply that there is not other good program except Rybka(for example: Suppose Hiarcs is good, then since it's good we imply that it is Rybka, so you say Hiarcs is Rybka. A contradiction so Hiarcs is not good).
So you should have said if it's Rybka, it's good.
Vas
> Rybka refers to everything - the engine, the book and the cluster.
OK, but this would result in:
"Rybka ist too expensive, I'm not able to afford this price.
I can only buy the engine. (What's her name?)"
Quap
Without names everything would be really tedious.
Vas
Next year's list of participants:
rybka
Rybka
rYbka
ryBka
...
Fruit
:-) :-P :-D
The '64' referring to the number of nodes in the cluster they're going to use. :-p
> Lol. Just like F1 championship: 9 cars, 1 with a Ferrari engine; 8 with a Lada engine. Champagne for the winner!
Very bad analogy, actually 6 cars in F1 had a Ferrari engine - the 2 Ferraris, the 2 Toro Rossos and the 2 Force Indias. The Ferrari team comfortably won the team title with 172 points, Force India scored ZERO points
So the Ferrari engine - which you are likening to 40 core Rybka - didn't help Force India now did it...
In case you want to find out about the hardware used, here's a link: http://www.csvn.nl/index.php?option=com_content&task=view&id=322&Itemid=1
Should we reduce hardware to the level of the weakest ?
In WCCC in China that would have been a mobile phone.
Overall the play was extremely clean and precise with fanatastic endgame play ... including the handling of a potential difficult bishop endgame which was handled perfectly. Seems like the little bugs in Rybka 3 have been ironed out and look forward to getting it soon. Congrats to all the Rybka team for a nice clinic of power chess.
The real problem with your proclamation is, that I also could produce most of the move on my C2D w32. On 40 cores you are more sure to make the right choice than on 8 cores and further on. Be aware: If you have a real competition, one blunder (not best move) is nearly loss! In Leiden, Rybka is so far above, that she can win three times in a game.
PS: I also noticed Rybkas good endgame play in Leiden. We have two explanations for this. First: Depth on 40 cores is good enough for good endgame play (with some Monte Carlo removals). Or second: Vas did something for better endgame play in source (mp EGTB bug, bad bishop, maybe something in rook endgames). My guess: He made both! :-)
The other explanation for this is that Dr. Hyatt is right and the method Vas chose for implementing the cluster doesn't offer much of a speedup.
PS: I also noticed Rybkas good endgame play in Leiden. We have two explanations for this. First: Depth on 40 cores is good enough for good endgame play (with some Monte Carlo removals). Or second: Vas did something for better endgame play in source (mp EGTB bug, bad bishop, maybe something in rook endgames).
More likely is that the improvement in the endgame was due to greater tree width rather than depth.
For me it´s the same like this: Depth on 40 cores is good enough for good endgame play (with some Monte Carlo removals).
PS: I see, you don´t believe, that Vas has made any bug update. I´m not sure. But you can be right. Vas has his own preferences. And history tells us, he wasn´t always wrong! :-)
And in human vs. engine matches, we compare Joule vs Watt; energy consumption must be equal! :-)
And in human vs. engine matches, we compare Joule vs Watt; energy consumption must be equal!
Sure Roland. In human chess match: one player gets 2 hours, the other 8 hours! Energy consumption must be equal!!
Have a nice/day/week
PS: Maybe the smartest will survive (in chess). But I don´t like this idea.
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