Accelerating FFT Performance Using the Cell BE Processor

The Fast Fourier Transform (FFT) is a key computational workload for seismic imaging. Acceleration of this workload can significantly reduce the run-time of seismic imaging applications. In this abstract, we describe methods for accelerating single-precision, two-dimensional, complex-to-complex, FFT calculations using the Cell Broadband Engine (BE) processor™. In particular, we focus on the Prime Factor Algorithm (PFA) FFT because of its flexibility and efficiency in handling a variety of FFT sizes. Our results demonstrate 12x to 18x improvements over state-of-the-art solutions on dual-core, Intel Woodcrest and AMD Opteron processors.

By: Jizhu Lu; Acie Nobles; Michael Perrone

Published in: RC24244 in 2007


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