5 Replies Latest reply on May 2, 2013 10:22 AM by chipf

    ACML FFT SIMD

    stuart.rogers

      Does the ACML FFT take advantage of SIMD instructions? If it does, why doesn't the input array memory need to be SIMD aligned? In order for FFTW to use SIMD, the input array must be SIMD aligned in memory via the fftw_malloc function: http://www.fftw.org/doc/SIMD-alignment-and-fftw_005fmalloc.html.