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Subject: Re: Could someone explain this?

Author: Gordon Rattray

Date: 04:35:16 08/16/01

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On August 16, 2001 at 05:54:50, Terje Vagle wrote:

>On August 16, 2001 at 05:21:51, Bertil Eklund wrote:
>
>>On August 16, 2001 at 03:16:59, Terje Vagle wrote:
>>
>>>Hi all,
>>>
>>>When I run Fritz 6 or Junior 6 in infinite mode over night, the NPS drop from
>>>approx. 600KNS from when I start it to approx 75KNS when it has been running for
>>>about 8-10 hours. The clock also starts to blink.
>>>
>>>BUT, when I run Fritz 5.32 in the same conditions, it continues the analysis
>>>with the same KN/s even after several days!
>>>
>>>WHY?
>>>
>>>Thanks in advance.
>>>
>>>Regards
>>>
>>>Terje Vagle
>>
>>Hi!
>>
>>Check the HD activity! It is some kind of overflow of the memory.
>>Try to lower the hash-tables a bit.
>>
>>Bertil
>
>
>Hi,
>
>No Bertil, that is not it I think. I have 512 MB ram on my PC and hashsize of
>128 MB.


I have seen the same problems.  Like yourself, I am sure that there is no
endgame tablebases or other disk access coming into effect.  My hashtable size
was 256Mb on a 512Mb RAM machine and it was no where near to being an endgame
position.  I had just put it down to some sort of bug or weakness or the
program?!

As an aside, I have found, Shredder 5 shows bizarra NPS and "hash used" figures
after a significant period of time.  Tiger can show a negative position total.
Once again, I put it down as a bug.

Gordon



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