Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: I solved the overclocking problem !

Author: Jorge Pichard

Date: 08:38:36 03/07/03

Go up one level in this thread


On March 07, 2003 at 06:30:27, Jorge Pichard wrote:

>On March 06, 2003 at 23:11:11, Mike Byrne wrote:
>
>>On March 06, 2003 at 16:56:21, Russell Reagan wrote:
>>
>>>Jorge Pichard says that on his ipaq, which runs at 500 MHz (overclocked), Pocket
>>>Fritz 2 gets around 70k-90k nps. On my Toshiba e740 (400MHz, not overclocked), I
>>>only get around 3k-4k nps.
>>>
>>>I installed Pocket Fritz 2 manually, copying the .cab file for the ARM processor
>>>to my Pocket PC and installing it from there. I read somewhere that some PDA's
>>>have "emulator" mode to support some software for other processors. Is it
>>>possible that I installed the wrong .cab file and it is running in emulator
>>>mode? Any other suggestions or ideas?
>>>
>>>Thanks,
>>>Russell
>>
>>
>>I don't have Fritz 2 and I onoy have  a 206MHz arm - but with Fritz 1 I get
>>about 5K NPS.  I would think that you should get about 9K.  What I don't
>>understand in the 90K NPS?  I wonder if the overclock application has distorted
>>the internal timings.
>>
>
>You are correct I just uninstalled the overclock on my HP Ipaq and run the same
>tests again and found to my amazement now that my Ipaq only get 7K instead of
>the previous 70K with tactical position and only 6K with normal non tactical
>position whereas it used to report 50K. You are correct to asume that the
>overclocking distorted the internal timings. This low NPS with  Pocket Fritz2
>indicate that Pocket Fritz2 has much more knowledge than Pocket Fritz1
>

 I decided to reinstall Pocket Fritz 2 and also Pocket Hack Master, and this
time I only Overclocked it to 472 Mhz instead of 500 Mhz. When I run the same
test positions again, I noticed that it gave me a 8K and run severals open
tactical positions again and received the same NPS 8K. Finally, my HP 3970 is
running stable and about 19% faster. The instruction on Pocket Hack Master give
you the impression that my HP 3970 could be safely overclock to 500 Mhz,
but for some reason it is not safe and too risky to run it that HOT.

Pichard

>
>>The way to test this is to set it on a position - search x depth deep, manually
>>time the machines and then compare the two results.  The next generation Pocket
>>PC was not going to be 20x faster than the previous.  Something sounds _wrong_.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.