Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: perft records

Author: Uri Blass

Date: 08:25:49 09/06/04

Go up one level in this thread


On September 06, 2004 at 11:04:59, Peter Fendrich wrote:

>On September 06, 2004 at 09:34:40, Uri Blass wrote:
>
>>On September 06, 2004 at 09:21:36, Peter Fendrich wrote:
>>
>>>On September 06, 2004 at 09:06:06, Reinhard Scharnagl wrote:
>>>
>>>>On September 06, 2004 at 07:43:51, Peter Fendrich wrote:
>>>>
>>>>>What free programs have the fastest perft and what are the figures?
>>>>>Please, If you give figures also add processor, compiler and environment!
>>>>>
>>>>>I want to compare with a new concept that isn't coded yet...
>>>>>/Peter
>>>>
>>>>Hi Peter,
>>>>
>>>>see some of my (Smirf) results (still improved after measuring) at:
>>>>
>>>>a) without TT: [http://www.chessbox.de/Down/CRC_Test_03.txt]
>>>>b) with    TT: [http://www.chessbox.de/Down/CRC_Test_04.txt]
>>>>
>>>>Regards, Reinhard.
>>>
>>>Hi Reinhard,
>>>I'm not sure how to read this. A few questions:
>>>It says break time 75 sec but in the table I find 166 sec. Is it 166 that
>>>I should count as the ply 7 result?
>>
>>Yes
>>
>>It seems that the program calculate perft 1 perft 2,... and stop when it finds
>>perft that takes more than 75 seconds.
>>
>>>
>>>That will get 3195901860/166 = 19252421 n/sec  Correct?
>>>Pretty fast!
>>
>>Yes smirf is very fast
>>Probably faster than movei(I do not use hash for perft and
>>was not interested in making it faster after it was fast enough).
>>
>>I will check later the speed of perft with the latest version with fast
>>hardware.
>
>Please do!
>/Peter

I see that I have 5.875 seconds and 5.891 seconds for perft 6 on A3000 with the
latest versions and it was not meant to be the fastest version(it calculates a
lot of unrelated evaluation stuff during makemove).

Uri



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.