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-   -   New Whitepaper: Arithmetics on Intel's Sandy Bridge and Westmere CPUs ' not all F (http://www.nvnews.net/vbulletin/showthread.php?t=180269)

News 05-08-12 05:00 PM

New Whitepaper: Arithmetics on Intel's Sandy Bridge and Westmere CPUs ' not all F
 
http://www.blogcdn.com/www.tuaw.com/...dy-bridge.jpegA new whitepaper from Colfax International presents a new arithmetic efficiency benchmark and uses it to compare the Intel Sandy Bridge E5-2680 CPU to the Intel Westmere X5690 CPU performance.
These results lead to the conclusion that the edge of the 8-core, 2.70 GHz Sandy Bridge CPU over the 6-core, 3.46 GHz Westmere processor will be most significant in both single and double precision for linear algebra and other tasks based on addition and multiplication. Re-compilation of codes performing addition and multiplication-based tasks with AVX intrinsics instead of SSE2 should lead to additional performance benefits on Sandy Bridge. However, CPU- bound calculations heavily using the division operation and transcendental functions are likely to experience a smaller speedup from using the Sandy Bridge processor in place of Westmere. Likewise, they will benefit less from the migration from SSE2 to AVX.

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http://insidehpc.com/?ak_action=api_...9079&type=feedRelated posts:
http://feeds.feedburner.com/~ff/InsideHPC?d=yIl2AUoC8zA http://feeds.feedburner.com/~ff/Insi...8M:F7zBnMyn0Lo http://feeds.feedburner.com/~ff/Insi...8M:V_sGLiPBpWU
http://feeds.feedburner.com/~r/InsideHPC/~4/bd1ZGLaPmok

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