PDA

View Full Version : New Whitepaper: Arithmetics on Intel‚??s Sandy Bridge and Westmere CPUs ‚?? not all F


News
05-08-12, 05:00 PM
http://www.blogcdn.com/www.tuaw.com/media/2010/12/intel-sandy-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.

Read the Full Story (http://research.colfaxinternational.com/post/2012/04/30/FLOPS.aspx).

http://insidehpc.com/?ak_action=api_record_view&id=29079&type=feedRelated posts:

Benchmarks: Sandy Bridge and Tesla a Powerful Combo (http://insidehpc.com/2012/03/09/benchmarks-sandy-bridge-and-tesla-a-powerful-combo/)
Video: Sneak Peak at Intel Sandy Bridge (http://insidehpc.com/2010/09/14/video-sneak-peak-at-intel-sandy-bridge/)
Intel Rolls Out Sandy Bridge E5 Processors (http://insidehpc.com/2012/03/06/intel-rolls-out-brings-sandy-bridge-ep-processors/)


http://feeds.feedburner.com/~ff/InsideHPC?d=yIl2AUoC8zA (http://feeds.feedburner.com/~ff/InsideHPC?a=bd1ZGLaPmok:ZnfwYf7ow8M:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/InsideHPC?i=bd1ZGLaPmok:ZnfwYf7ow8M:F7zBnMyn0Lo (http://feeds.feedburner.com/~ff/InsideHPC?a=bd1ZGLaPmok:ZnfwYf7ow8M:F7zBnMyn0Lo) http://feeds.feedburner.com/~ff/InsideHPC?i=bd1ZGLaPmok:ZnfwYf7ow8M:V_sGLiPBpWU (http://feeds.feedburner.com/~ff/InsideHPC?a=bd1ZGLaPmok:ZnfwYf7ow8M:V_sGLiPBpWU)
http://feeds.feedburner.com/~r/InsideHPC/~4/bd1ZGLaPmok

More... (http://feedproxy.google.com/~r/InsideHPC/~3/bd1ZGLaPmok/)