Author: Frank Quisinsky
Date: 12:52:05 12/18/00
Go up one level in this thread
On December 18, 2000 at 13:43:41, Vincent Diepeveen wrote: >On December 17, 2000 at 14:24:13, Frank Quisinsky wrote: Hi Vincent, we speak about a Chess-Base engine !! All is not a problem ! I can adjust threads = 1 and Deep Fritz used 1 processor on my dual machine. So I can play with ponder engine/engine matches without any problems. Program A and Deep Fritz (program B in this example) get 1 processor ! The reason for me is to see how good is the new version, because Frans say to me in Leiden that the new version (in Leiden T26 or T27) is much better (also with 1 processor). I saw in my test games that Deep Fritz is better ! Please check my News Ticker Page 42 for more information. Here you can find a picture from the engine settings of Deep Fritz. Best Frank > >I don't know how Frans implemented his parallellism, >but it doesn't sound like a good idea to run it parallel with >another engine playing against it, unless the >other program runs on a different computer. > >With 2 processors running 3 program threads/processes means >that one process in turn will not get system time and will >get blocked. In about 50% of the total time that will be one >of the parallel engines. If a parallel engine gets blocked >very likely real soon locks inside the engine will prevent >the other process from getting further too. > >Running a processor dual means you definitely NEED 2 free cpu's >(free of work load) otherwise the parallellism works against you. > >If you run diep dual on a single cpu for example then the first 30 >seconds it will search like a couple of hundreds of nodes. > >Only when the locks are near the root and the search depth is huge, >then the problem gets a lot smaller as both can search without >locking each other too much. > >>Hi, >>in the next 3 months I play with 5 new engines in my CCE tourney >>(biggest computer chess tourney). >> >>01. Tourney "B": WB LambChop 10.x (very strong, I think 2.425 - 2.525 ELO). >>02. Tourney "B": WB Insomniac 0.69a (older version with 2.450 - 2.475 ELO). >>03. Tourney "A": CB The Crazy Bishop (I believe 2.375 - 2.425 ELO). >>04. Tourney "A": CB Nimzo 8 (I believe 20 - 40 ELO stronger as Nimzo 7-32). >>05. Tourney "A": CB DeepFritz (I believe 20 - 40 ELO stronger as Fritz 6a). >> >>We will see ... >>New results daily ! >> >>Dual Pentium III 733 MHz, Ponder = on, 64 MB Hash-Tables, 40 moves in 40 >>minutes, 4-piece nalimov TBs with 4 MB cache ! >> >>More information on my webpage ! >>http://amateurschach.in-trier.de >> >>Have a nice day ! >> >>Best >>Frank
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