Transforming a linear algebra core to an FFT accelerator

@article{Pedram2013TransformingAL,
  title={Transforming a linear algebra core to an FFT accelerator},
  author={Ardavan Pedram and John D. McCalpin and Andreas Gerstlauer},
  journal={2013 IEEE 24th International Conference on Application-Specific Systems, Architectures and Processors},
  year={2013},
  pages={175-184}
}
This paper considers the modifications required to transform a highly-efficient, specialized linear algebra core into an efficient engine for computing Fast Fourier Transforms (FFTs). We review the minimal changes required to support Radix-4 FFT computations and propose extensions to the micro-architecture of the baseline linear algebra core. Along the way, we study the critical differences between the two classes of algorithms. Special attention is paid to the configuration of the on-chip… CONTINUE READING

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