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Subject: Re: Saboteur - A Java chess engine

Author: Peter Kappler

Date: 15:06:21 10/09/99

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On October 09, 1999 at 14:08:54, Josh Levine wrote:

>On October 09, 1999 at 12:41:42, Peter Kappler wrote:
>
>>
>>
>>Hi Josh,
>>
>>Glad to see somebody else is trying Java for chess programming.  :-)
>>
>>Just curious -- what version of the JDK are you using, and are you running with
>>a JIT or using HotSpot?  Also, what hardware are you using?
>>
>>--Peter
>
>I am using Borland JBuilder2 JDK for compiling (I think its 1.1.6, and jdk1.2.2
>for compiling a working version (it compiles into faster program).  As far as
>the runtime, I use the 1.2.2 VM with the built in symantec JIT.  I found that
>the hotspot compiler is actually 15% slower, but I haven't tried it for more
>than 3 or so games on fics. It seems it just never compiled all the methods and
>the overhead of trying was killing the program.
>
>Josh


Josh,

If you haven't tried IBM's JDK, you can download it from

http://www6.software.ibm.com/dl/dkw/dkw118-p

It includes IBM's JIT, which is the fastest I've used (faster than Symantec's).
Using it, my program (Grok) averages around 40-50 knps in most middlegames on a
K6-3/450.

Good luck with your program.  Java is a nice language.  :-)

--Peter




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