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Subject: Re: Uniform depth reporting proposal

Author: Peter McKenzie

Date: 23:01:37 08/26/00

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On August 26, 2000 at 23:03:49, Will Singleton wrote:

>On August 26, 2000 at 16:12:45, Peter McKenzie 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.
>>
>>I prefer to show DEPTH COMPLETED, plus the number of root moves searched at the
>>next depth.  I think that depth completed is a pretty universal thing.  Alot of
>>programs don't show how much has been done at the next search depth, partly
>>because this can be complicated by re-searches etc.
>>
>>In general, I think it would be great to agree on a standard format and a
>>standard set of information to be presented.
>>
>
>Sure, if possible.  But it may be that different folks see what's important in
>different ways.
>
>So, when you display 7.10 depth, that means you've searched seven full ply, plus
>10 root moves of the eighth ply?

Correct

>  When I display 7/10 depth, it means I've
>searched six full ply, plus 10 root moves of the seventh ply.  That is, I
>terminated the search at ply 7, move 10.  That seems like the proper way to do
>it.

I was under the impression that the convention was the opposite, and that people
were most interested in completed ply.

>
>Will



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