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Subject: Re: search depth/time results comparing 2800mhz vs 3066mhz

Author: Slater Wold

Date: 21:46:39 10/11/01

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On October 12, 2001 at 00:35:44, K. Burcham wrote:

>
>these are two examples of slates upgrade from 2x1400mhz,  to 2x1533mhz.
>
>
>out of the three tests, one of the tests had the analysis shown at different
>  times and different depths, didnt seem to be a good comparison.

That's the beauty of SMP.  :)

>
>but the two tests below are close enough to see a difference, since the
>time and depth were pretty close in the analysis.

I already did this, for myself.  But I guess this shows everyone here the
difference.

>
>i added the kns. value.     first test gain of 137kns.
>     second test gain of 171kns.  first test was accessing egtbs

Crafty gained 100k nps.  And the EGTB's slow down nps.  (Obviously.)

It's roughly a 9% gain.  (According to the tests I've ran.)

>
>
>
>2800 mhz
>
>+-  (3.02)   Depth: 27   00:02:02  169000kN, tb=6750
>1.b7 Re8 2.Ba7 Be1 3.b8Q Rxb8 4.Bxb8 Bb4 5.Bd5 Kh5 6.Bf7+ Kh6 7.Bc7
>  +-  (3.02)   Depth: 29   00:07:10  672750kN  1564kns    tb=28655
>
>3066 mhz
>
> +-  (3.02)   Depth: 27   00:01:53  169393kN, tb=6762
>1.b7 Re8 2.Ba7 Be1 3.b8Q Rxb8 4.Bxb8 Bb4 5.Bd5 Kh5 6.Bf7+ Kh6 7.Bc7 Kg7 8.Bd5
>Kf6
>  +-  (3.02)   Depth: 29   00:06:36  673858kN  1701kns     tb=28699
>
>
>
>
>2800 mhz
>
>1.Nxg5 Bxd1 2.Nxe6 Qb8 3.Nxg7+ Kd8 4.Kxd1 b5 5.Bf5 b4 6.Ne6+ Kc8 7.Bd2 Qb6 8.Kc2
>  ²  (0.68)   Depth: 18   00:03:52  363925kN
>1.Nxg5 Bxd1 2.Nxe6 Qb8 3.Nxg7+ Kd8 4.Kxd1 b5 5.Bf5 b4 6.Kc2 a5 7.Ne6+ Kd7 8.Bh6
>a4 9.cxb4
>  ±  (0.72)   Depth: 20   00:07:17  757031kN   1732kns
>
>3066 mhz
>
>1.Nxg5 Bxd1 2.Nxe6 Qb8 3.Nxg7+ Kd8 4.Kxd1 b5 5.Bf5 b4 6.Ne6+ Kc8 7.Bd2 Qb6 8.Kc2
>  ²  (0.68)   Depth: 18   00:03:32  361911kN
>1.Nxg5 Bxd1 2.Nxe6 Qb8 3.Nxg7+ Kd8 4.Kxd1 b5 5.Bf5 b4 6.Kc2 a5 7.Ne6+ Kd7 8.Bh6
>a4 9.cxb4
>  ±  (0.72)   Depth: 20   00:06:54  787819kN   1903kns
>
>(thanks to slate)

No problem.

>kburcham



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