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Subject: Shredder 7.04 SMP implementation hosed?

Author: Keith Ian Price

Date: 11:39:11 07/16/03

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On July 15, 2003 at 07:55:56, Pavel Blokhine wrote:

>I am downloading Shredder 7.04 from chessbase but I am having problme with it.
>It has an erratic kN/s and often showss 100 kN/s, 70 and then jumps to 1000,
>then goes back to 16 kN/s.I have dual xeon 3.06 ghz so I know i should never get
>those 16 kN/s even in endgames. So why isn't the the kN/s more steady even at
>the beginning of the game? Also, when I am downloading it, it's not showing
>immediately in my C:\program files\chessbase\engines.


I have noticed the same, and with Shredder 7, as well. Also, if I limit it to
one thread, the average kNs drops from 750 to 450, but the search reaches on
average 1/2 ply deeper. I am wondering if the SMP implementation is hosed in
Shredder, or is there no correlation betweem ply and kNs in normal SMP?

kp



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