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Subject: Re: Pro Deo [clear hash table always/never]

Author: Joachim Rang

Date: 00:16:35 11/16/04

Go up one level in this thread


On November 16, 2004 at 01:46:47, Kurt Utzinger wrote:

>On November 15, 2004 at 15:42:01, Albert Silver wrote:
>
>>On November 15, 2004 at 13:37:01, Kurt Utzinger wrote:
>>
>>>Nunn2 match (60m+10s) 40 games
>>>Pro Deo 1.0 vs Fritz 8.0.0.26
>>>http://www.utzingerk.com/pro_deo.htm
>>>
>>>A little test should show the influence of the option [clear hash table =
>>>always] and [clear hash table = never]. Below the result against Fritz 8 as Pro
>>>Deo had the worst result against this engine:
>>>
>>>Option [Clear Hash Table = Always]
>>>PD = 32.5 %
>>>13.0 - 27.0
>>>
>>>[Clear Hash Table = Never]
>>>PD = 36,2 %
>>>14.5 - 25.5
>>
>>I ran some Nunn2 blitz matches as you know, with and without, and the results
>>were not clear. Against Aristarch and Ruffian the results were better, and
>>against List, PD scored 1 point less.
>>
>>                                          Albert
>
>
>      Hi Albert
>      Is it worth to replay all remaining 280 games
>      at time control 60m+10s with clear hash table
>      = never http://www.utzingerk.com/pro_deo.htm
>      Kurt


why should clear Hash Table = Never be an improvement? ProDeo looses important
information when it clears the hashtable? Why is this option tested? Did Ed
mention that he is not clear whether it helps or not?

regards Joachim



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