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Subject: Re: About qsearch...

Author: Severi Salminen

Date: 01:18:06 12/30/01

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>The pv is dependent on the depth qsearch and starting from the pv is not
>something very interesting.
>The history table is also dependent on the qsearch and if the qsearch is limited
>there is a bigger chance that the history table is going to be wrong.
>

Well, I don't do those in qsearch, so that's the reason. If you do, then
limiting will of course have an effect.

>>>0   2868842
>>>1   3611982
>>>2   997968
>>>3   1564826
>>>4   1196247
>>>5   1214999
>>>6   1184129
>>>7   1153555
>>>8   1180282
>>>9   1153618
>>>=10  1153584
>>
>>I don't quite understand the numbers (they include _all_ the nodes, right?)
>>above. 0 means actually a 7 ply search with no qsearch at all? 1 means 7 plies
>>of full width and 1 ply qsearch? How can 2 ply limit have only 997968 nodes?
>>Shouldn't the number increase when increasing the limit? I'm missing now
>>something important...
>
>It seems to be a question of luck
>The program sometimes change it's mind more often or less often but my
>impression is that limiting the qsearch does not reduce the number of nodes in
>general.

I think something might be broken. The jumps are way too big. Do you get crazy
PVs? I don't understand why limiting would increase the size. And on the other
hand: if limiting doesn't even decrease the size why on earth do you limit? But
I think something odd is happening or you don't count nodes right as the above
numbers are very strange? Where exactly do you increase node counters?

Severi



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