Author: Christophe Theron
Date: 20:10:41 10/15/03
Go up one level in this thread
On October 15, 2003 at 15:28:11, Peter Skinner wrote:
>On October 15, 2003 at 13:25:59, Aaron Tay wrote:
>
>>On October 15, 2003 at 11:11:34, Peter Skinner wrote:
>>
>>>On October 15, 2003 at 10:23:56, Thorsten Czub wrote:
>>>
>>>>it is as old as computerchess, we were able to measure it in the old times
>>>>of dedicated chess computers, and it has IMO not changed on the PC:
>>>>
>>>>chess programs do profit from time DIFFERENT.
>>>>
>>>>some are better on fast levels. others are better on slow time controls.
>>>>
>>>>As far as i remember there are only a few people outside believing that
>>>>the programs strength is linear increasing function concerning time controls /
>>>>cpu-speed.
>>>
>>>In Chess Tiger's case I have matched it against itself using two different sets
>>>of hardware to see how well it scaled.
>>>
>>>I used a PIII 900 vs a PIV 2.6 Ghz. The match of 200 blitz games ended in a dead
>>>draw. The reason I did the test was that I have used Tiger since version 11.9,
>>>and my hardware gets upgraded atleast once a year. I have noticed no rating
>>>difference while playing online when using different hardware.
>>>
>>>Other programs like Crafty, Ruffian, Gandalf do indeed profit more from better
>>>hardware. I just don't think that Tiger is one of them. This could possibly be
>>>the reason for Christophe's thoughts on the time control difference.
>>
>>>Peter.
>>
>>The last doesn't make sense, if Tiger does not gain from time control
>>differences, but it's opponents do, then Tiger's relative performace would vary,
>>and Christophe would indeed notice :)
>
>What I meant was when I upgrade my hardware, and everyone else's stays the same
>(for a small time atleast) I do not see an increase of strength.
>
>Take two computers with different MHz, search for the same position and the no
>matter what.. each computer comes up with the same. The nodes may vary, but the
>time it took to search did not. I have done this many times with Tiger. There is
>no real strength gain when using bigger hardware, or none that can be very
>noticable.
I don't understand what you mean.
If you don't get better solution times and better results when you upgrade your
hardware, well, do I need to say it? You have a problem somewhere...
Christophe
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