Author: Christophe Theron
Date: 13:18:11 10/27/01
Go up one level in this thread
On October 27, 2001 at 15:11:20, Thorsten Czub wrote:
>On October 27, 2001 at 04:23:42, Uri Blass wrote:
>>I understand that thorsten is interested in the total number of nodes in a fixed
>>time and not in the number of nodes per second that is displayed by the
>>computer.
>>
>>He does not use the computer clock but an external clock when he trusts the
>>total number of nodes that is displayed by the computer.
>
>
>exactly. at least one guy understand me :-))
>
>>If I understand correctly in your example 54 Mhz is really slightly faster than
>>30 Mhz but 54 Mhz is too much and you can use 32 Mhz to get the same total
>>number of nodes when you use external clock.
>
>
>>Uri
>
>i do not think ct adds the average NPS in the total number.
>IMO it adds the REAL computed N and adds them.
To compute the NPS when the thinking is over, I divide the total number of nodes
by the total time.
I think this is as you expect it to be.
>or is christophe telling us the NPS is added each "second" in the total.
>i would not program it this way. he maybe has done. this would of course
>explain our misunderstanding.
>my palm says it makes more total nodes in an amount xyz stopped with an external
>clock. therefore i do use it at 54 mhz.
>i see no reason to stop this. why should LESS nodes be faster or as fast ?
Here is the reason: at 54MHz the total number of nodes computed in a given time
(measured with an external stopwatch) is going to be marginally higher than the
number of nodes you would have got with a more reasonable speed that does not
screw the time measurement.
On some devices, the number of nodes at 54MHz can actually be LESS (because the
PLL goes crazy).
On the other hand, the program's time management is completely screwed. The
program believes that the time is passing very slowly, so it is going to think
for much more time than what it is allowed to use.
This gives Chess Tiger an unfair advantage. For example instead of playing all
the game in 5 minutes, it is going to play it in 10 minutes.
I don't see how you can play fair matches under these conditions...
Christophe
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