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Subject: Re: Hash probe success rate

Author: Robert Hyatt

Date: 17:37:25 06/30/04

Go up one level in this thread


On June 30, 2004 at 20:12:06, Andrew Wagner wrote:

>On June 30, 2004 at 15:13:17, Robert Hyatt wrote:
>
>>On June 30, 2004 at 14:19:02, Andrew Wagner wrote:
>>
>>>I have a single transposition table, replace-always. I count a success when I
>>>get back a score which allows me to return immediately, without making a move.
>>>About what percent should my success rate be?
>>
>>
>>maybe 10% in middlegame or less.
>>
>>
>>>
>>>Currently, my success rate starts around 5%, then drops turn-by-turn, until it's
>>>0, then jumps back up and starts falling again. Any suggestions what might be
>>>causing this? I've tested all my keys with generating them from scratch, and
>>>have no problems there. My code is modelled after the TT code on bruce morelan's
>>>site. Any suggestions appreciated....
>>>
>>>Andrew
>>
>>
>>
>>
>>
>>
>>Always replace will never be as effective as an "intelligent decision" on what
>>to replace...
>>
>>That's the first place to start...
>
>Are you saying you think it's bug-free as written? That this is normal behavior?
>I'd like to get something simple working before doing something more
>complicated...


Wasn't meaning to say that at all.  Your question is very difficult to answer
remotely.  IE what happens on fine 70 position???




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