Author: Christophe Theron
Date: 01:22:04 08/27/00
Go up one level in this thread
On August 26, 2000 at 00:17:32, Pete Galati wrote:
>On August 25, 2000 at 23:15:44, Christophe Theron wrote:
>
>>On August 25, 2000 at 15:15:52, Pete Galati wrote:
>>
>>>On August 25, 2000 at 15:05:17, Christophe Theron wrote:
>>>
>>>>On August 25, 2000 at 15:00:51, Mark Loftus wrote:
>>>>
>>>>>I think ZChess and SOS made a good showing in this tournament, very good for the
>>>>>amateurs playing with the big boys. I had never heard of Paque Expert before, I
>>>>>think that must be an amateur. I think a recent version of Little Goliath 2000
>>>>>would have been very competitive here, obviously I was a little disappointed in
>>>>>Crafty but I think Bob will have a better book worked out for the next time.
>>>>>Does anyone know the versions of the programs that played in this WMCCC?
>>>>>
>>>>>Mark
>>>>
>>>>
>>>>
>>>>The version of Chess Tiger playing in the WMCCC 2000 is 12.9
>>>>
>>>>It will be further improved before we release it as the commercial engine
>>>>"Rebel-Tiger II".
>>>>
>>>>
>>>> Christophe
>>>
>>>12.9? When you compete in a tournament like WMCCC, are you useing a Dos Tiger?
>>>
>>>Pete
>>
>>
>>Yes. We had to do that as the DLL interface has changed and so we could not use
>>the graphical interface without first adapting it.
>>
>>The result is that we have used a version of Tiger that is slightly slower as
>>the one that runs under the Windows interface. I'm using an old DOS GCC (2.7.2),
>>and it produces slightly slower code than Visual C and the new GCC, which is now
>>optimized for Pentium-class processors.
>>
>>I have focused so much in improving the engine that I did not even took the time
>>to install the new GCC compiler! :)
>
>I never took the time to find out what they changed with it. It probably
>wouldn't mean anything to me if I found out anyhow. It probably wasn't a
>problem using the old version.
They implemented Pentium-specific optimizations. It can make a significant
difference for some programs.
>>In practice the difference in speed does not matter much in such a tournament.
>>It must be only 5-10% slower.
>>
>>
>>
>> Christophe
>
>Tiger did very well. I don't think being slightly slower hurt you really. So
>you loose a search depth here and there, but I think allot of the time the next
>search depth comes up with the same move anyhow.
I agree, it does not make a big difference. In fast games it could be important,
because programs change their mind frequently.
In slow time controls, it is a very small difference.
Christophe
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