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c++ Programming Glossary: fog'scpu dispatcher for visual studio for AVX and SSE http://stackoverflow.com/questions/15406658/cpu-dispatcher-for-visual-studio-for-avx-and-sse Edit Okay I think I isolated the problem. I'm using Agner Fog's vector class and I have defined three source files as file sse2.cpp.. long as I don't have another source file with AVX. Agner Fog's manual says There is no advantage in using the 256 bit floating..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code caches memory hierarchies and proper programming Agner Fog's page . In his excellent documents you can find detailed examples..
http://stackoverflow.com/questions/661338/sse-sse2-and-sse3-for-gnu-c nice coverage of intrinsics and vectorization in Agner Fog's optimization PDFs thanks although it's a bit spread about e.g..
How can adding code to a loop make it faster? http://stackoverflow.com/questions/688325/how-can-adding-code-to-a-loop-make-it-faster If you want to read on the branch prediction give Agner Fog's excellent web site a try http www.agner.org optimize This pdf..
Using AVX CPU instructions: Poor performance without “/arch:AVX” http://stackoverflow.com/questions/7839925/using-avx-cpu-instructions-poor-performance-without-archavx result of expensive state switching. See page 102 of Agner Fog's manual http www.agner.org optimize microarchitecture.pdf Every..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle complete on most of the modern Intel cpu's see e.g. Agner Fog's 'Instruction Tables' . Due to pipelining one can get a throughput..
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