Author: Vincent Diepeveen
Date: 08:41:14 12/28/99
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On December 28, 1999 at 11:34:49, Djordje Vidanovic wrote: >On December 28, 1999 at 10:59:03, Vincent Diepeveen wrote: > >>On December 28, 1999 at 10:20:42, Djordje Vidanovic wrote: >> >>>I got Deep Junior 6 several days ago and decided to find out more about it by >>>staging a tournament with my currently strongest engines under the Deep Junior >>>GUI. I decided on a round robin with programs playing 4 games against each >>>other. Time controls were G/25 (game in 25 minutes, sudden death), which is the >>>level most commonly used in rapid chess and the one quite likely to be used by >>>computer chess fans when playing their programs. >>> >>>The roster included two SMP programs -- Deep Junior and Crafty 16.15, and two >>>other super strong programs, Fritz (test version 6.66) and Hiarcs 7.32. The >>>venue was my dualboard PII/400 machine. Each program used 32MB hash, and the >>>Nimzo 7.32 opening book. Pondering and learning were off. >> >>Are you telling here that you are running 2 programs at 2 cpu's, >>so junior at 2 processors and crafty at 2 processors sometimes have >>a big problem that another program is eating up cpu time, thereby >>locking the whole process? >> >>Or did you use the right method involving 2 computers: >> - dual PII400 >> - single cpu computer >> >>How did you do the test? >> >>If you run a parallel program at 2 cpu's >>against another program at the same cpu's, then >>the dual version of that program is having major problems, >>as it cannot search on as a processor sometimes gets blocked by another >>process. Thereby reducing the nodes a second and plydepths a program >>running parallel gets. >> > >I tested the programs on a single computer, using a very simple method to ensure >that they can play in a more or less fair manner. Pondering was off and I >checked the CPU utilization via the Task Manager in Win 2000. There was no CPU >hogging, nor were the processes blocked. The nodes were evenly distributed, and >reached the same heights as when I used only one SMP program. Of course, you >have a point that this is not the best way to test programs. However, my other >computer is a single CPU comp and I could not test the SMP programs there. You can use AUTO232 >*** Djordje
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