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Subject: Re: significant math

Author: Robert Hyatt

Date: 17:06:00 11/19/02

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On November 19, 2002 at 19:13:39, Vincent Diepeveen wrote:

>On November 19, 2002 at 16:55:55, Alessandro Damiani wrote:
>
>>On November 19, 2002 at 16:31:15, Russell Reagan wrote:
>>
>>>On November 19, 2002 at 16:24:36, Gian-Carlo Pascutto wrote:
>>>
>>>>On November 19, 2002 at 16:22:14, Russell Reagan wrote:
>>>>
>>>>>You can't prove either to be clearly better than the other, but you can give >evidence that they are comparable in terms of performance.
>>>>
>>>>You haven't done that. You've shown that they reach similar NPS.
>>>>
>>>>NPS =/= performance
>>>
>>>You need to clearly define what the hell you want then. Vincent too. You two sit
>>>there and demand proof or evidence without providing any of your own, and then
>>>when someone provides what you ask for you say "That's not what I asked for." or
>>>"that isn't valid" or whatever the excuse of the day is. Make it clear what you
>>>want, or don't ask.
>>>
>>>Sounds an awfully lot like what goes on at r.g.c.c to me. People responding with
>>>stupid things like, "No..." with no "evidence" to support it.
>>
>>It is easier to say "no, this doesn't work." than trying to do the work oneself.
>>Some politicians behave the same way. It is cheap.
>>
>>Alessandro
>
>A good definition of bitboards.
>
>My move generator is 2.0 times faster than the one of crafty,
>so there is no 'religion' here which i'm talking about. It's a simple
>measurement which can be done. DIEP is no exception then however.
>
>There are more non bitboarders over 2 times faster, like Yace.
>
>I bet Christophe is too.
>
>Best regards,
>Vincent

What would be your point?  That 10% of your code is twice as fast?  That doesn't
say much for the other 90%.  I spend under 10% in move generation, so I haven't
spent much time at all tweaking that as it is wasted effort.

Yace isn't two times faster, by the way.  It seems to be pretty comparable in
speed
to Crafty.  _overall_.  Which is the only _important_ measure...




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