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The execution time of an algorithm on a given piece of hw is going to be whatever it is going to be. I assume that you want a simplified/theoretical guideline for picking either hw or algorithm. If you are using a dsp or SoC, I guess that you are going to use SIMD. The general picture is that a SIMD unit is n bits wide (eg 128 bits), and the capability for ...


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First, if there's a more formal way to do this than what I'm going to show, I don't know it. Call out the MAC operations along with data path widths. I.e., "the FFT algorithm used takes $4 n \log n$ operations with 24-bit wide data paths" A corollary to this would be that sometimes you may have different precision in your coefficients and your ...


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