Abstract
In this work we present a study of the vectorization of the fast Fourier transform. The algorithm we have considered is the radix r self-sorting algorithm which does not require additional data reordering stages (digit-reversal) as this process is inherently carried out during the execution of the algorithm. For obtainig the vectorized version of the algorithm we employ a formulation of the FFT in terms of an operator string. Each of the operators represents an operation over the data flow of the algorithm and will have a direct implementation on the vectorial processor. The algorithm thus obtained has been implemented on the Fujitsu VP-2400/10 vector computer, resulting in reduced execution times.
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© 1994 Springer-Verlag Berlin Heidelberg
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Amor, M., Martín, M.J., Blanco, D., Plata, O.G., Rivera, F.F., Argüello, F. (1994). Vectorization of the radix r self-sorting FFT. In: Buchberger, B., Volkert, J. (eds) Parallel Processing: CONPAR 94 — VAPP VI. VAPP CONPAR 1994 1994. Lecture Notes in Computer Science, vol 854. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-58430-7_19
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DOI: https://doi.org/10.1007/3-540-58430-7_19
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