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An OpenMP Implementation of Parallel FFT and Its Performance on IA-64 Processors

  • Daisuke Takahashi
  • Mitsuhisa Sato
  • Taisuke Boku
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2716)

Abstract

In this paper, we propose an OpenMP implementation of a recursive algorithm for parallel fast Fourier transform (FFT) on shared-memory parallel computers. A recursive three-step FFT algorithm improves performance by effectively utilizing the cache memory. Performance results of one-dimensional FFTs on the DELL PowerEdge 7150 and the hp workstation zx6000 are reported. We successfully achieved performance of about 757MFLOPS on the DELL PowerEdge 7150 (Itanium 800MHz, 4CPUs) and about 871MFLOPS on the hp workstation zx6000 (Itanium2 1GHz, 2CPUs) for 224-point FFT.

Keywords

Fast Fourier Transform Large Problem Size Fast Fourier Transform Algorithm Point Fast Fourier Transform OpenMP Directive 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Daisuke Takahashi
    • 1
  • Mitsuhisa Sato
    • 1
  • Taisuke Boku
    • 1
  1. 1.Institute of Information Sciences and ElectronicsUniversity of TsukubaTsukuba, IbarakiJapan

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