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Subject: Re: Singular Extension Crafties

Author: Bernhard Bauer

Date: 01:03:00 09/12/01

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On September 11, 2001 at 10:32:54, Robert Hyatt wrote:

>On September 11, 2001 at 03:39:52, Bernhard Bauer wrote:
>
>>On September 10, 2001 at 15:53:36, Robert Hyatt wrote:
>>
>>>On September 10, 2001 at 15:46:38, Robert Hyatt wrote:
>>>
>>>>On September 10, 2001 at 13:46:10, Dann Corbit wrote:
>>>>
>>>>>On September 10, 2001 at 13:35:19, Robert Hyatt wrote:
>>>>>[snip]
>>>>>>BTW crafty generally gets 299/300 on a 750mhz machine.  If you are using an
>>>>>>800 and getting 295/300 something seems amiss...
>>>>>
>>>>>I only allow 5 seconds per position.  If your version can do that on 750 MHz, it
>>>>>will rule the world.
>>>>>;-)
>>>>
>>>>
>>>>OK... didn't see the 5 seconds.  I do know of at least one program that
>>>>used to get 'em all at 5 seconds.  :)
>>>
>>>
>>>I just checked my log files.  A 600mhz 21264 gets 298/300 in 5 seconds, and
>>>gets 299 in 10 seconds, and gets them all in 60 seconds.  Single-cpu.  Tim Mann
>>>ran the test last year some time.
>>>
>>>nice box.  :)
>>>
>>>Actually that 21264 will get 298 in 3 seconds/move
>>
>>Here are some benchmarks from SPEC including the time for the crafty part.
>>Sortet by Crafty-time, Int-peak and Ftp-peak.
>>The Alpha 21264C has a small advantage.
>>							SORT
>>SPEC	benchmark suite	MHz	Fp base	Fp peak	Int base	Int peak	Crafty time	Time /
>>Ghz
>>Compaq	Alpha 21264C	1001	585	756	561	621	124	124,12
>>AMD	Athlon	1400	426	458	495	554	126	176,4
>>AMD	Athlon MP	1200	433	481	495	522	144	172,8
>>Compaq	Alpha 21264A	833	571	644	511	533	156	129,95
>>Dell	Pentium 4	1800	615	631	599	619	170	306
>>Dell	Pentium 3	1000	329	340	454	462	191	191
>>
>>						SORT
>>SPEC	benchmark suite	MHz	Fp base	Fp peak	Int base	Int peak	Crafty time	Time /
>>Ghz
>>Compaq	Alpha 21264C	1001	585	756	561	621	124	124,12
>>Dell	Pentium 4	1800	615	631	599	619	170	306
>>AMD	Athlon	1400	426	458	495	554	126	176,4
>>Compaq	Alpha 21264A	833	571	644	511	533	156	129,95
>>AMD	Athlon MP	1200	433	481	495	522	144	172,8
>>Dell	Pentium 3	1000	329	340	454	462	191	191
>>
>>
>>
>>				SORT
>>SPEC	benchmark suite	MHz	Fp base	Fp peak	Int base	Int peak	Crafty time	Time /
>>Ghz
>>Compaq	Alpha 21264C	1001	585	756	561	621	124	124,12
>>Compaq	Alpha 21264A	833	571	644	511	533	156	129,95
>>Dell	Pentium 4	1800	615	631	599	619	170	306
>>AMD	Athlon MP	1200	433	481	495	522	144	172,8
>>AMD	Athlon	1400	426	458	495	554	126	176,4
>>Dell	Pentium 3	1000	329	340	454	462	191	191
>>
>>BTW testing with WAC will not lead to any progress!
>>
>>Kind regards
>>Bernhard
>
>
>I disagree to your last comment on two grounds:
>
>1.  new programs will _definitely_ improve as their WAC scores improve.  Getting
>the right extensions to solve these quickly is the fastest way to eliminating
>the ugly tactical blunders likely in newer programs.
>

I wasn't refering to new programs. For new programs anything may be good.
I was thinking about crafty and how to make it even better.
Crafty has reached a high standard and solves 290+ positions. Improvements for
playing better may not be visible by running test with very short time.

>2.  running WAC after significant changes will _also_ help a lot.  If you
>start missing some that you were getting instantly, you have broken something
>important.

I guess you know wac very well from many years and if you mean that it helps a
lot to see that nothing serios is broken, I agree.

BTW crafty was always very good in solving the famous Ortueta-Sanz position.
The latest versions do not so well. This shows that you have changed something,
but is anythin´g broken?
Here is the position.
[D]8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1/ b
Kind regards
Bernhard



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