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Subject: Re: Deep Junior's Debut

Author: Vincent Diepeveen

Date: 10:02:54 12/28/99

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On December 28, 1999 at 11:44:54, Djordje Vidanovic wrote:

>On December 28, 1999 at 11:41:14, Vincent Diepeveen wrote:
>
>>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
>
>I would if I could.  My wife is using it for writing her doctoral dissertation.
>Perhaps you could try to persuade her that testing chess programs on both
>computers is normal? :))

I'm sure you can run the programs for a game or 2 during the night :)





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