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Subject: Re: 3.06 Xeon Test Results

Author: Yen Art Tham

Date: 11:40:51 04/10/03

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On April 09, 2003 at 11:52:48, Charles Worthington wrote:

>I ran the Deepfritzmark and Shreddermark tests with hyperthreading disabled then
>enabled with some very confusing results that I am hoping someone can help
>explain:
>
>Test set #1 Hyperthreading Disabled, 64MB Hash, Engine Parameters @ default
>
>Shredder 7.04:  Shreddermark: 2227 +- 0 (1.5s) 705kN/s
>
>Deep Fritz 7 :  Deepfritzmark: 2724 +- 44 (3.1s)  2252kN/s
>
>
>
>
>Test set #2 Hyperthreading Enabled, 64MB Hash, Engine Parameters @ Default
>
>Shredder 7.04:  Shreddermark: 2227 +- 0 (1.5s) 803kN/s
>
>Deep Fritz 7 :  Deepfritzmark: 2476 +- 0 (3.2s) 2555kN/s
>
>
>
>Test set #3: Hyperthreading Enabled, 32 MB Hash, Engine Parameters @ Default
>
>Shredder 7.04: Shreddermark: 2784 +- 0 (0.4s) 907kN/s
>
>Deep Fritz 7:  Deepfritzmark: 2476 +- 0 (3.4s) 2532kN/s
>
>
>
>Test set #4; Hyperthreading enabled, 16MB Hash, engine parameters @ default
>
>Shredder 7.04;  Shreddermark: 2784 +- 0 (0.4s) 1008kN/s
>
>Deep fritz 7:  Deepfritzmark: 2476 +- 0 (4.5s) 2544 kN/s
>
>
>
>This is somewhat confusing as Fritz scored the highest fritzmark with
>hyperthreading_disabled_ even though his kN/s were_far_lower. Shredder scored
>far better with it_enabled_ both in result, speed, and time to solution.


Shredder shows _no_ improvement in shreddermark or time to solution, according
to test 1&2


>Also Shredder seemed to benefit more from the smaller hash sizes where Fritz
>seemed relatively worsened by them. Does anyone have any insight as to these
>seemingly contradictory results? And would I be better to run Deep Fritz with
>the hyperthreading diasabled even though his kN/s is considerably lower?
>
>Charles



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