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Up Topic Rybka Support & Discussion / Rybka Discussion / Cluster Rybka games
- - By Lukas Cimiotti (Bronze) Date 2008-11-11 16:48
Now that everyone is discussing playing strenght of Ryka cluster I decided to select some games so everyone can have a closer look.
I only took games aginst very strong opponents - all but 2 equipped with 8 core computers. I also took games by "Wallybal" who has got a 4 GHz QX9650 - his book preparations are usually really good and of course I took game against Nick Carlin - he's using a very good remote Linux setup (so you don't see real processor speed) that is equal in strength to a Skulltrail. I didn't leave out the games I lost - as you can see.
Btw. my book preparations cost me only few minutes - I took very good publicly available books - but I did small but very radical changes to avoid those typical Playchess B90 Sicilian Najdorf games.


Parent - By Fulcrum2000 (****) Date 2008-11-11 18:44
Thanks for the games! :)
Parent - By Bouddha (****) Date 2008-11-11 18:46
Thanks 4 the games
Parent - By Lukas Cimiotti (Bronze) Date 2008-11-11 21:07

I took these measures to avoid B90 from game 8 on - before I used an unchanged book
Parent - - By M ANSARI (*****) Date 2008-11-12 15:37
Hmmm ... looking quickly at the games it seems that Vas has decided that the Master should be Rybka Human and not Rybka Default.  I wonder if Rybka Default has been tried as a Master?  It seems that a few moves are inferior to what non cluster Rybka Default would have played.

r2b2k1/3nq1pp/p2N4/1p1Pp3/1Q3n2/8/PPP4P/2KR1B1R w - - 0 22

In this position Rybka Cluster plays c3? and ended up losing... according to my Rybka 3 Default on 8 cores 4.2Ghz and same depth the correct move was Qa3!  The only Rybka I have that can contemplate c3 is Rybka 3 Human.
Parent - By Vasik Rajlich (Silver) Date 2008-11-18 08:16
Normal Rybka (default) is used in the master and all slaves. The playing style of the cluster can be quite different though, you'll get moves that the normal Rybka won't play.

Parent - - By stephanie (**) Date 2008-11-12 17:25
How much elo difference in a 2 quad core cluster computer match versus an single octa or two duos vs a quad? Will clustering hurt the performance compared to smp?
Parent - By Vasik Rajlich (Silver) Date 2008-11-18 08:17
This we don't know.

Parent - - By ptobler (**) Date 2008-11-12 21:31
Hi - how do I access these CBH games? I have Deep Fritz and have just downloaded CB Light.
Parent - - By Debaser (***) Date 2008-11-12 21:54
Extract the packed file

In Fritz, F12 and then File-Open Database and browse to the folder. Or File-Open Database two times ;)

In CB Light, just File-Open Database
Parent - - By ptobler (**) Date 2008-11-13 00:03
Thanks for your help. What do you use to extract the packed file?
Parent - - By Uly (Gold) Date 2008-11-13 00:15
Parent - - By Not the real Kasparov (***) Date 2008-11-15 23:59
What format can the games be viewed in?
Parent - By Vempele (Silver) Date 2008-11-16 07:51
cbh (ChessBase).
Up Topic Rybka Support & Discussion / Rybka Discussion / Cluster Rybka games

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