Intel Compiler AVX Instructions

Intel Compiler AVX Instructions

inteleverywhere's picture

The option QxAVX (for using AVX instructions) is not available with the evaluation version of the ICC compiler 11.1065, vs 2008. Also the header file gmmintrin.h mentioned in the help is not available when included

catastrophic error: could not open source file "gmmintrin.h"

How can we build the source with AVX intrinsics in it. Is it sufficient to use o3 (Intel specific optimization).

Is there a solution to this problem.

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For more complete information about compiler optimizations, see our Optimization Notice.
Thomas Willhalm (Intel)'s picture

In the settings, there is no check box for "QxAVX". However, you can set "/QxAVX" by adding it as a command line option.

The header file for the AVX intrinsics is called "immintrin.h".

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