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Subject: Re: Uniform depth reporting proposal

Author: Will Singleton

Date: 20:09:57 08/26/00

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On August 26, 2000 at 15:52:38, Andrew Williams wrote:

>On August 26, 2000 at 12:44:46, Will Singleton wrote:
>
>>On August 26, 2000 at 08:06:00, Brian Richardson wrote:
>>
>>>I think the information that many programs report, such as depth, score, PV,
>>>etc) is helpful to see, and appreciate most programs doing so (particuarly when
>>>their operators are online, or even some that have lists of opponents to
>>>automatically kibitz).
>>>
>>>However, each program reports in a different manner.  I would like to propose
>>>_some_ reporting uniformity.  I am not suggesting that standardizing _all_
>>>information and formats should be attempted.
>>>
>>>In particular, the search "depth" seems like a good place to start.  Depth can
>>>mean several different things.  I would like to propose a depth reporting format
>>>as follows:
>>>
>>>ply x(y/z) where x is the last full width (normal search) ply _completed_,
>>>z is the deepest with extensions, and z is the absolute deepest ply reached
>>>(typically in q-search).
>>>
>>
>>I assume you mean y = deepest with extensions.
>>
>>I don't know about standardizing.  I sort of like to compare the different
>>formats, you get to know the idiosyncrasies of each after awhile.  Your format
>>is unique I think, kind of verbose.  Others give a single number, like d=8,
>>which is too sparse.  I like my method (surprise :)), that gives the depth
>>reached plus number of ply 1 moves examined at that depth.  That shows exactly
>>where in the ply the search terminated.
>>
>
>This isn't possible with mtd engines. Yeah, I know there aren't many.
>

Hmmm... guess I haven't been paying attention.  You mean to say that you don't
know how many root moves you've searched at a given ply?

>>I also like the score shown with a bit less resolution (1.1 rather than 1.13).
>>Less is more.  I should also fix my kib feature.
>>
>>Will
>
>I like to see the score with either + or - prepended. But I also prefer 1.13
>to 1.1 <shrug>


For my own purposes, a resolution in hundreths is hard to assign meaning to.  My
eval jumps around a bit, while yours seems more steady.  Have you tried
thousandths? :)

Will




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