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1. yuvalbs
   

   Member
   Joined: Apr '14
   Posts: 2

   dose any of the binaries can make use of the AVX instructions,
   or do I have to compile one my self?

   Posted 10 years ago #

2. Jiri Jaros
   

   Developer
   Joined: Feb '12
   Posts: 115

   Hi yuvalbs,

   The binaries only support the SSE2 extension in order to run on a wide range of CPUs.
   If you want to use AVX, you need to build the codes by yourself.

   1) It is necessary to build FFTW with the AVX support
   ./configure --enable-avx (other necessary parameters)

   2) Find the DimensionSizes.h file in the Utils folder and change
   const int SSE_ALIGNMENT = 16;
   to
   const int SSE_ALIGNMENT = 32;

   3) Modify k-Wave's makefile by adding -mavx flag to the g++ compiler, or -xavx to the intel compiler

   Jiri

   Posted 10 years ago #

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