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Computational SIMD framework: split-radix SIMD-FFT algorithm, derivation, implementation and performance

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3 Author(s)
Rodriguez V, P. ; ivPCL Lab., New Mexico Univ., Albuquerque, NM, USA ; Pattichis, M.S. ; Jordan, R.

A general framework to develop efficient single instruction multiple data (SIMD) compliant algorithms was previously proposed. In this paper a split-radix SIMD-FFT algorithm is derived under this framework and compared against the radix-2 SIMD-FFT algorithm, proven to have very efficient implementation. Regardless of the intrinsic irregular pattern present in the split-radix algorithm, it is shown that its performance improvement, when compared to the radix-2 algorithm, ranges from 2.5% up to 8.1%.

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Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on  (Volume:2 )

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