Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: An Experiment that disproves Hyatt's 1000X NPS Theory

Author: Ryan B.

Date: 22:07:07 09/17/05

Go up one level in this thread


On September 18, 2005 at 00:34:50, Robert Hyatt wrote:

>On September 18, 2005 at 00:28:19, Ryan B. wrote:
>
>>On September 17, 2005 at 23:49:59, Robert Hyatt wrote:
>>
>>>On September 17, 2005 at 23:32:46, Ryan B. wrote:
>>>
>>>>On September 17, 2005 at 21:53:26, Robert Hyatt wrote:
>>>>
>>>>>On September 17, 2005 at 12:49:06, Ryan B. wrote:
>>>>>
>>>>>>I thought this rediculess theory was proven wrong with the Crafty vs Rebel thing
>>>>>>a long time ago.  It is far more complicated than just the NPS loss in move
>>>>>>ording, pruning, reduction checks, and extention checks that all can improve a
>>>>>>program while reducing the NPS.  As well what is known by the eval function and
>>>>>>how it is used can be much more valuable than even another few ply searched but
>>>>>>causing a very large loss in NPS.  Hiarcs on slow hardware vs GNU Chess on fast
>>>>>>hardware should show a good example of this.
>>>>>
>>>>>
>>>>>What was proven wrong?
>>>>>
>>>>>We played exactly one game with crafty vs rebel, with the time handicap.  Ed
>>>>>later played another match with a _completely_ different result (his chess 2010
>>>>>or whatever it was.
>>>>>
>>>>>I'd say that shredder is clearly better than current crafty.  Anyone want to
>>>>>give me 1000:1 time odds and play a match?
>>>>>
>>>>>Just name the when/where...
>>>>>
>>>>>I _know_ how such a match will turn out...
>>>>
>>>>Take null move out and I know the result as well.  You might get shocked....
>>>>again.
>>>
>>>I've not been shocked the _first_ time yet.
>>>
>>>And I also have no idea what null-move has to do with this.  Should I also take
>>>out search extensions?  The evaluation?  Endgame tables?  Should I just play
>>>using a text editor?
>>>
>>>Again, two programs that are reasonable, if one goes way faster, it will win way
>>>more.  And nothing is going to shock that out of me...
>>
>>
>>How could the Rebel vs craft game even if just one game not shock you?  Also I
>>would like to know why a person with your experiance and enducation would say
>>"if one that goes way faster" knowing "way faster" can be defined in many
>>differant ways and you are destine to be taken out of context with such a
>>comment.
>
>10x faster is a significant advantage.  100x is more significant.  1000x is more
>significant.  What is ambiguous about that?
>
>
>
>>  If you mean much faster hardware than you have a solid but not
>>flawless statment
>
>This has _always_ been about faster hardware.  Not lobotomizing a chess engine
>which would make absolutely no sense in any sort of "scientific test".
>

Good to know we are on the same page here.  "IF" NPS was all that matterd
lobotomizing a chess engine would help its play.  I think we should all know
this is not the case.

>
>>  If you mean much higher NPS your statment is simply wrong.
>
>
>Nope.  Faster hardware _always_ equals faster NPS for a given program.   So it
>isn't "simply wrong".  If you want to somehow imagine that I said that taking
>two programs on the same computer, and the faster NPS program will win, then you
>are free to do so.  But I certainly never said, nor implied such a thing.  Feel
>free to dig up a context-complete quote where I did, of course, although I know
>such a thing can't be found.
>

I did not know we where talking about the same program vs itself on differant
hardware.

>
>>If you mean something else please explain.
>
>
>I meant exactly what I said.

And it was worth clerifying, I felt what I read was unclear.  People will take
you out of context if you let them.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.