Author: Christophe Theron
Date: 09:53:11 01/17/04
Go up one level in this thread
On January 16, 2004 at 22:39:57, Mike Byrne wrote:
>On January 16, 2004 at 14:08:49, Christophe Theron wrote:
>
>>On January 16, 2004 at 01:14:50, Mike Byrne wrote:
>>
>>>On January 16, 2004 at 00:41:45, ERIQ wrote:
>>>
>>>>in ssdf or fide.
>>>
>>>on a 400 Mhz Palm -- it is my belief that it is near 2450 ( I would say that teh
>>>chances are excellent that it will fall in somewwere from 2375 to about 2500
>>>with my best guess at 2440) ...the pocket pc version will be about the same
>>>....on both machines it can see over 100K nps in certain positions which is
>>>fantastic for handheld device...
>>
>>
>>
>>You seem to be very impressed by the NPS, but you should know that in computer
>>chess NPS is definitely not a measure of strength.
>
>I agree with you.
>
>>
>>As a matter of fact I could make a few quick changes that would double or triple
>>Chess Tiger's NPS. But the program would be weaker then.
>>
>>Maybe a high NPS was impressive in the '70. Now it's obsolete...
>>
>
>I only mention nps because of Genuis NPS on non arm / non xscale machines
>compared to Genius nps on arm/xscale -- it is quite impressive when comparing
>apple (Genius older processors) to Apples ( Genius code for new proccessors).
>NPS is only woth mentioning when comparing identical program to identical
>program running on perhaps different processors with different optimizations.
You are not comparing apples to apples.
1) older versions of Chess Genius for Palm did not show the nps. So you cannot
compare to that. Even if you could, you are comparing a 68K assembly of 1987
with a C code of 2004. The programs are probably very different.
2) as far as I know, only the latest version of Chess Genius for PC displays the
NPS. I don't have this one, but I have older versions that did not display it
anyway. The PC version of Genius is, as far as I know, written in x86 assembly.
And it is a totally different program that the one (writen in C said Richard)
that runs natively on Palm. They are probably not searching the same tree at
all.
So there are things that you cannot compare because of lack of data, and there
are things that you should not compare because they are totally different
engines.
That makes any consideration of NPS in this case even more useless than it is
usually.
Christophe
>For example on this position (link below) , running a Dell Axim (oc to 600 Mhz)
>it will see exactly the same number of positions in just 31 seconds or 103K nps.
>
>http://www.chessgenius.com/palm/faq.htm
>
>I would to love see CT optimize for the Pocket PC - any chance of that
>happening?
>
>
>
>
>Best,
>
>Michael
>
>
>>
>> Christophe
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