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Up Topic Rybka Support & Discussion / Rybka Support / What's the max hash with R4?
- - By Highendman (****) Date 2010-05-31 19:19
On my 12GB machine (Vista Ultimate) I can't set it to more than 3GB (both with / without large pages).
When I run it with 4GB it defaults to 3GB in the log.
Is that something with my setup, or is 3GB the limit?
Thanks.
Parent - - By Lukas Cimiotti (Bronze) [de] Date 2010-05-31 19:47
It's 8 GB, but 32 bit Fritz GUIs think, they can't use more than a total of 4GB.
In the 64 bit version of Fritz GUI that came with Zap! Chess, you can use more.
Parent - - By Highendman (****) Date 2010-05-31 19:55
Thanks! That was something I had no clue about ;)
I have the Fritz11/Rybka3 GUI I bought from chessbase a long while ago.
No matter what I do it only allows 3GB of Hash to be set.
I understand from your post there's a 64bit GUI version available for purchase from somewhere, and in it that limit is gone?
I have no clue what Zap! chess is but I'll google it up. Any more explanations are welcome :)

Btw - did you see any measurable performance improvement with say 6GB of ram (with huge-pages) vs. say just 512mb ram (with huge-pages) for short time-controls?
As there's no visibility to how much of the hash is utilized, I don't know if at all to worry about this :)
Parent - By Lukas Cimiotti (Bronze) [de] Date 2010-05-31 20:34
ZAP!CHESS was the predecessor of Zappa.
It has a very old version of the Fritz GUI, as far as I know the only 64 bit GUI by Chessbase.

I can't find it anywhere in the UK - here's a German ebay link:
http://cgi.ebay.de/ZAP-CHESS-/280507390182?cmd=ViewItem&pt=Zeitschriften&hash=item414f8b18e6
Parent - - By ernest (****) [fr] Date 2012-01-03 01:30

> I have the Fritz11/Rybka3 GUI I bought from chessbase a long while ago.
> No matter what I do it only allows 3GB of Hash to be set.


I have a friend, using Windows 7 Professional (64-bit) who has exacly the same problem.
What can be done (without getting the 64-bit Zap!Chess GUI)?

(Sorry, I asked the same question to Vempele in the ...Aquarium sub-forum! :cool:)
Parent - - By Lukas Cimiotti (Bronze) [de] Date 2012-01-03 08:13
You can make a rybka.config file like described in this thread: http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=21109
Parent - - By ernest (****) [fr] Date 2012-01-03 14:54
Thanks Lukas.
You mean that using the  rybka.config file, where Hash Size (Mb) : 4096
will override the Fritz11/Rybka3 GUI 3GHz limitation?
Parent - - By Lukas Cimiotti (Bronze) [de] Date 2012-01-03 15:51
Exactly yes.
Parent - - By CumnorChessClub (***) [gb] Date 2012-01-04 11:55
Lukas is it also possible to use the config file for other parameters like TB path, Piece value and the like...
If so an example would be much appreciated:smile:
Parent - - By Lukas Cimiotti (Bronze) [de] Date 2012-01-04 16:21
It is possible for some parameters.
Here's an example:

                          _________________________
                          \                       /
                           \       Output        /
                            \___________________/

                          Engine Name : Rybka 4.1
                    Send Text Reports : True

                          _________________________
                          \                       /
                           \    Resource Use     /
                            \___________________/

                       Hash Size (Mb) : 2048
                             Max CPUs : 4
                      Use Large Pages : True

                          _________________________
                          \                       /
                           \     Tablebases      /
                            \___________________/

                         Nalimov Path : D:\TBS\; D:\TB6\
                        Nalimov Cache : 16
              Nalimov Probe Frequency : 72

                          _________________________
                          \                       /
                           \       Logging       /
                            \___________________/

                        Log Directory : C:\Logs\
                              Log UCI : True
                         Log Analysis : True
                             Log Html : True
                 Use Big Log Diagrams : True
                   Lines Per Log Page : 141
           Diagram For Every Position : True
                   UCI Log Skip Fluff : True

                          _________________________
                          \                       /
                           \    Visualization    /
                            \___________________/

                     Visualizer Count : 1
                       Visualizer Log : True
                    Visualizer 1 Path : C:\ADR\Rybka4.1Beta5\Rybka Visualizer\Rybka Visualizer\bin\Debug\Rybka Visualizer.exe
                    Visualizer 1 Init : Name = Rybka 4.1 Visualizer; Proven Main Line Count = 3; Main Line Count = 3; Search Sample Count = 4; Search Micro Sample Count = 53; Width = 1280; Location = 1281,   0; Score Change Is New Main Line = False;
                    Visualizer 2 Path :
                    Visualizer 2 Init :
                    Visualizer 3 Path :
                    Visualizer 3 Init :
                    Visualizer 4 Path :
                    Visualizer 4 Init :
                    Visualizer 5 Path :
                    Visualizer 5 Init :
                    Visualizer 6 Path :
                    Visualizer 6 Init :
                    Visualizer 7 Path :
                    Visualizer 7 Init :
                    Visualizer 8 Path :
                    Visualizer 8 Init :
Parent - - By CumnorChessClub (***) [gb] Date 2012-01-04 16:28
Thanks Lukas, much appreciated:smile:
Parent - - By keoki010 (Bronze) [us] Date 2012-01-04 21:09
There's a thread about it Kevin, http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=21109
Parent - By CumnorChessClub (***) [gb] Date 2012-01-04 23:59
Thanks for link, but its mainly about the Visualizer settings and I wanted to know more about what parameters you could use in the Rybka config file:smile:
Up Topic Rybka Support & Discussion / Rybka Support / What's the max hash with R4?

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