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Subject: Re: Differences between 0x88 ,10x12 and Bitboards!?

Author: Eugene Nalimov

Date: 09:12:37 11/20/02

Go up one level in this thread


I believe I have something like ~230Gb 6-men TBs right now. That includes
50+80Gb you have, so your disks are enough for a while.

Thanks,
Eugene

On November 20, 2002 at 11:13:12, Robert Hyatt wrote:

>On November 20, 2002 at 01:31:28, Eugene Nalimov wrote:
>
>>On November 20, 2002 at 01:23:13, Robert Hyatt wrote:
>>
>>>On November 19, 2002 at 20:23:36, Eugene Nalimov wrote:
>>>
>>>>On November 19, 2002 at 19:20:43, Uri Blass wrote:
>>>>
>>>>>On November 19, 2002 at 18:14:46, Vincent Diepeveen wrote:
>>>>>
>>>>>>On November 19, 2002 at 15:08:13, Daniel Clausen wrote:
>>>>>>
>>>>>>please mention me 1 bitboard program with a big eval.
>>>>>>  *NONE*.
>>>>>>
>>>>>>To me bitboards seems something for people who are no good
>>>>>>programmers, because they can cut'n paste from crafty and
>>>>>>go further with that.
>>>>>>
>>>>>>Optimizing gnuchess or gerbil or whatever to something real
>>>>>>fast for your needs is way more difficult of course than
>>>>>>starting with something that's working and written out in
>>>>>>detail.
>>>>>>
>>>>>>Usually people also cut'n paste the SEE and qsearch from
>>>>>>crafty then and they have something much better than they
>>>>>>can produce in a lifetime most likely.
>>>>>>
>>>>>>That's the only attractive things from bitboards IMHO for
>>>>>>several authors.
>>>>>>
>>>>>>And as long as they don't improve the evaluation a lot
>>>>>>it remains like that.
>>>>>>
>>>>>>If on the other hand you look to what representation the
>>>>>>good programmers go for, the picture is real clear.
>>>>>>
>>>>>>this has nothing to do with religion but with objective speed
>>>>>>differences. My move generator without inline assembly and
>>>>>>with general code for both sides, it is 2 times faster than
>>>>>>crafty at any x86 processor.
>>>>>>
>>>>>>That's *objective* measurements.
>>>>>>
>>>>>>My SEE is better than the one from crafty, picking up more
>>>>>>than Crafty does in the SEE. Very objectively provable.
>>>>>>
>>>>>>The list goes on and on.
>>>>>>
>>>>>>Most important thing however IMHO is that the source from
>>>>>>crafty is free. If mine was free, everyone would start with
>>>>>>DIEP and go further from there. I'm 100% sure of it.
>>>>>>
>>>>>>We saw this before.
>>>>>>
>>>>>>When GNUchess was the strongest freely available source code,
>>>>>>people started with that crap.
>>>>>>
>>>>>>I wrote nearly every byte of my move generator. *every* byte.
>>>>>>
>>>>>>It took me years to make a fast generator. Not everyone is
>>>>>>that great.
>>>>>
>>>>>If you worked years on optimizing part of the program that you use less than 1%
>>>>>of your time then it means that you are not a good programmer.
>>>>
>>>>He is not good. He is great :-)
>>>>
>>>>Thanks,
>>>>Eugene
>>>
>>>Can a "ferkin idiot" make that kind of assessment?
>>
>>That's not my conclusion. Please read his own words several lines higher:
>>
>>>>>It took me years to make a fast generator. Not everyone is
>>>>>that great.
>>
>>:-)
>>
>>>btw we are getting close to 1/2 terrabyte of space for the ftp box, soon I
>>>hope...
>>
>>Today I find out that copying 200Gb over 100mbit/s network takes some time :-)
>>
>>Thanks,
>>Eugene
>>
>
>For the record, how much "stuff" are you sending?
>
>I currently have  about 50 gigs of released tables, three, four, five and six
>piece files.
>I have about 80 gigs of stuff you have uploaded.  I am ordering 3 146 gig scsi
>drives
>to start with, with room for at least two more easily and three if I mount the
>system
>drive outside the hot-swap bay.
>
>Don't tell me you are going to blow that before I get it installed?  :)
>
>
>>>>
>>>>>Good programmers prefer to optimize the important parts.
>>>>>
>>>>>Working years to do your program 1% faster by a faster move generator seems to
>>>>>me a big mistake.
>>>>>
>>>>>Uri



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