Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: 6-man endgame databases

Author: Robert Hyatt

Date: 20:13:31 02/28/03

Go up one level in this thread


On February 28, 2003 at 19:09:38, Ed Panek wrote:

>On February 28, 2003 at 15:32:38, Ed Panek wrote:
>
>>On February 28, 2003 at 14:38:58, Robert Hyatt wrote:
>>
>>>On February 28, 2003 at 13:39:55, Ed Panek wrote:
>>>
>>>>On February 28, 2003 at 12:16:20, Robert Hyatt wrote:
>>>>
>>>>>On February 28, 2003 at 11:30:58, Ed Panek wrote:
>>>>>
>>>>>>On February 28, 2003 at 11:29:31, Robert Hyatt wrote:
>>>>>>
>>>>>>>On February 28, 2003 at 10:49:04, fabio calamassi wrote:
>>>>>>>
>>>>>>>>     Hi,
>>>>>>>>    I read about the size of 6-man endgame databases; it will be 200 GB or
>>>>>>>>more!! But now, how big are its five files i can to find on the web for
>>>>>>>>download? Thanks for your reply to all the people. Fabio
>>>>>>>
>>>>>>>
>>>>>>>I don't know what you mean by "size of its five files".  There are currently
>>>>>>>about 300
>>>>>>>6-piece files on my ftp machine, with more coming.
>>>>>>
>>>>>>
>>>>>>Bob,
>>>>>>
>>>>>>what types of average search speeds do you see on your Dual 2.8 Xeon? Just
>>>>>>curious
>>>>>>
>>>>>>
>>>>>>Ed
>>>>>
>>>>>
>>>>>a low of just under 2.0M in the opening, around 2.5M in the middlegame, and
>>>>>without
>>>>>endgame tables I have seen over 3M in the endgame.
>>>>
>>>>
>>>> Much higher than my dual 2600+ running crafty 18.3
>>>>
>>>> I get 1.5 opening, 1.8 middle and 2.0 endgame
>>>
>>>
>>>What about the bench command with no .craftyrc?  Crafty produces 2.1M (actually
>>>2.16M if
>>>I recall accurately).  That's a pretty good way to compare since we are talking
>>>about the same
>>>positions searched to the same depth.
>>
>>
>>I shall try it this weekend when Im home and let you know
>>
>>
>>Ed
>
>I just tried it. Crafty 18.6 with 2 processors and no crafty.rc I get 1.86
>
>
>Ed


Here is my dual xeon 2.8 output:

Total nodes: 104415743
Raw nodes per second: 2130933
Total elapsed time: 49
SMP time-to-ply measurement: 13.061224



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.