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Subject: Re: Aspiration window

Author: Antonio Dieguez

Date: 07:36:57 01/22/02

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On January 22, 2002 at 01:33:37, Antonio Dieguez wrote:

>On January 21, 2002 at 19:27:29, Antonio Dieguez wrote:
>
>>On January 20, 2002 at 20:03:45, Bas Hamstra wrote:
>>
>>>Using PVS, I don't use an aspiration window for quite a while now. As far as I
>>>can see it hardly matters. How is your experience? Data?
>>
>>now i have data. Yes, it hardly matters. It is about equal, I saw just 1% worse
>>in average in the positions i tried by some reason.
>>
>>Thanks for the surprise, my only excuse to not seen it is that i dont use only
>>pvs, altough using 10 times larger windows only makes my default alphabeta-pvs
>>mix search 4% more nodes in average (not that bad, also a surprise)
>
>argh what a bad memory I have (no kidding, lately...), I actually had planned
>add a 0 at the end of the numbers of the windows, but for some reason what i
>finally did was adding a 2 at the beginning, so they got multiplied by a factor
>beetween 3 and 7.
>

I keep trying, but I got the same, pvs with small windows and pvs with big
windows are about the same for me, less than 1% difference. And my current
search ouperforms them by almost 4%. It would be a mistake from my side to do
the same as you just for simplicity. I will keep trying a little bit more...
This makes such a small difference anyway... well...

best wishes.



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