Hi, the kernels are type specific. However, if you want a dot product:
a = \sum_{i=0}^{N-1} b[i]c[i],
https://github.com/gnuradio/volk/blob/main/kernels/volk/volk_32fc_x2_dot_prod_32fc.h
A [i] += B [i] * C [i], for i = 0...N-1
This would implement the above formula: 1. https://github.com/gnuradio/volk/blob/main/kernels/volk/volk_32fc_x2_multiply_32fc.h 2. https://github.com/gnuradio/volk/blob/main/kernels/volk/volk_32fc_x2_add_32fc.hIt would be interesting to see how much faster an integrated kernel would be.
The ipp `AddProduct function: https://www.intel.com/content/www/us/en/develop/documentation/ipp-dev-reference/top/volume-1-signal-and-data-processing/essential-functions/arithmetic-functions/addproduct.html I assume ipp aims for: https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#ig_expand=3202,3202,3202,3206,3206,3206&text=_mm256_fmadd_ps Which version are you looking for? Cheers Johannes
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