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Subject: 3.06 Xeon Test Results

Author: Charles Worthington

Date: 08:52:48 04/09/03


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.
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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