Fast evaluation of a time-domain non-linear cochlear model on GPUs

Doron Sabo, Oded Barzelay, Shlomo Weiss, Miriam Furst

Research output: Contribution to journalArticlepeer-review

Abstract

We present a parallel algorithm that solves a time-domain non-linear mathematical model of the cochlea. The previously known serial solution of the cochlear model is based on LU decomposition in the longitudinal dimension and is iterative in the time dimension. These two characteristics of the serial solution limit parallelism and prevent efficient computations on a massively parallel processor. We introduce a novel parallel algorithm that successfully overcomes the challenges posed by the cochlear model. We present performance results of a parallel implementation of the algorithm that shortens the computation time by a typical factor of 160-180, which makes the proposed algorithm of practical value for applications such as clinical audiological diagnosis.

Original languageEnglish
Pages (from-to)97-112
Number of pages16
JournalJournal of Computational Physics
Volume265
DOIs
StatePublished - 15 May 2014

Keywords

  • Cochlea
  • Computational acoustics
  • Computational biophysics
  • GPU
  • Parallel computing

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