H3 vs Cluster Rybka

Discussion of computer chess matches and engine tournaments.

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kinderchocolate
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Re: H3 vs Cluster Rybka

Post by kinderchocolate »

After the match, who would still rent the cluster?
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Graham Banks
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Re: H3 vs Cluster Rybka

Post by Graham Banks »

Leto wrote:If Houdini wins the third game we might have to wonder whether the Rybka cluster could even draw a single game...
Looking at the play in the first two games, I think that Rybka might be lucky if it manages to salvage a couple of draws, but I'd be surprised if it won a single game. :shock:
Just a gut feeling of course, as one shouldn't make a definitive judgement based on just two games.
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Modern Times
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Re: H3 vs Cluster Rybka

Post by Modern Times »

kinderchocolate wrote:After the match, who would still rent the cluster?
People who don't have access to a 16 core Xeon box ?
S.Taylor
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Re: H3 vs Cluster Rybka

Post by S.Taylor »

Modern Times wrote:
kinderchocolate wrote:After the match, who would still rent the cluster?
People who don't have access to a 16 core Xeon box ?
I imagine this may deal a terrible blow.

Only someone who is desperate for extremely quick analysis or preparation, and has no access to own strong computer, might consider renting.
Mystique might not be there anymore.
kinderchocolate
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Re: H3 vs Cluster Rybka

Post by kinderchocolate »

Modern Times wrote:
kinderchocolate wrote:After the match, who would still rent the cluster?
People who don't have access to a 16 core Xeon box ?
I doubt. The rental is quite expensive. If I can buy a machine better than the cluster with a normal PC price, I wouldn't even click into the rental page. If the cluster isn't the strongest in the world, there is no point.
Modern Times
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Re: H3 vs Cluster Rybka

Post by Modern Times »

kinderchocolate wrote:
Modern Times wrote:
kinderchocolate wrote:After the match, who would still rent the cluster?
People who don't have access to a 16 core Xeon box ?
I doubt. The rental is quite expensive. If I can buy a machine better than the cluster with a normal PC price, I wouldn't even click into the rental page. If the cluster isn't the strongest in the world, there is no point.
Since when is a 16 core Xeon "normal PC price" ??? They are hugely expensive.

In a way, these matches are completely pointless. If you can't afford to rent the cluster, then you can't afford to buy and run a 16-core Xeon.

Much better would have been a true "normal" (but higher spec) PC - say a single socket 6-core core Intel 3930K or similar - running Houdini 3. If THAT machine could consistently beat the cluster then I agree with you, the cluster is dead. The only exception might be if, on 296 cores, it is world-beater and you have a few million in the bank.
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Houdini
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Re: H3 vs Cluster Rybka

Post by Houdini »

Modern Times wrote:Since when is a 16 core Xeon "normal PC price" ??? They are hugely expensive.

In a way, these matches are completely pointless. If you can't afford to rent the cluster, then you can't afford to buy and run a 16-core Xeon.

Much better would have been a true "normal" (but higher spec) PC - say a single socket 6-core core Intel 3930K or similar - running Houdini 3. If THAT machine could consistently beat the cluster then I agree with you, the cluster is dead. The only exception might be if, on 296 cores, it is world-beater and you have a few million in the bank.
Clemens' expensive 16-core dual Xeon runs at about 30,000 kN/s.
To obtain the same Elo strength with 6 cores you'd need about 23,500 kN/s.
That's not a lot higher than the typical 18,000 to 20,000 kN/s reached by an overclocked i7-3930K. The $500 6-core CPU delivers 80% of the performance of the $4000 16-core dual CPU.

Robert
Lion
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Re: H3 vs Cluster Rybka

Post by Lion »

I have seen some 3930k at over 21'500 kn/s

Are you sure that a 30'000 kn/s 16 cores is about = to an 6 cores at 21'500 kn/s ?

If its the case, spending so much money for (23.5/21.5) only 9.3% faster cpu is not worth it..... imo

rgds
Modern Times
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Re: H3 vs Cluster Rybka

Post by Modern Times »

Houdini wrote:Clemens' expensive 16-core dual Xeon runs at about 30,000 kN/s.
To obtain the same Elo strength with 6 cores you'd need about 23,500 kN/s.
That's not a lot higher than the typical 18,000 to 20,000 kN/s reached by an overclocked i7-3930K. The $500 6-core CPU delivers 80% of the performance of the $4000 16-core dual CPU.

Robert
In which case, that is what should have been used for the match. We can speculate how much better the 16-core is over the 6-core, but speculating inconclusively. Better to have used the overclocked 6-core in the first place. Much better promotion for Houdini as well...
S.Taylor
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Re: H3 vs Cluster Rybka

Post by S.Taylor »

Lion wrote:I have seen some 3930k at over 21'500 kn/s

Are you sure that a 30'000 kn/s 16 cores is about = to an 6 cores at 21'500 kn/s ?

If its the case, spending so much money for (23.5/21.5) only 9.3% faster cpu is not worth it..... imo

rgds
I don't see what's bad with i7-3770 either. It's only 4 cores, at 3.4 Mhz each, and can either be overclocked or not, and much cheaper and it's the latest... for high end users (Ivy Bridge).
I do not overclock mine (at the momment), and the whole computer tower stays almost completely cold, day and night, AND it's not such a slow timing is it?