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Optional support for fftw in place of fftpack (compile-time flag) - #19

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qianglbl merged 1 commit into
impact-lbl:masterfrom
ken-lauer:fftw
Aug 21, 2026
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Optional support for fftw in place of fftpack (compile-time flag)#19
qianglbl merged 1 commit into
impact-lbl:masterfrom
ken-lauer:fftw

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@ken-lauer

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(Mirrors my changes with this PR from IMPACT-T: impact-lbl/IMPACT-T#34)

  • Adds the fftw backend, which can be compiled in optionally by way of the flag USE_FFTW
  • Adds a bit of info in the README for compilation options
  • Adds fftw to the CI suite
  • Initial benchmarks indicate significant speedup

@ken-lauer
ken-lauer marked this pull request as ready for review August 20, 2026 21:00
@qianglbl
qianglbl merged commit fb1d9d7 into impact-lbl:master Aug 21, 2026
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