Issues

• num_threads not documented for plan_fft!

  JuliaMath/FFTW.jl#343 · Filter by author jgreener64 opened on Jul 20, 2026

• Applying a complex in-place plan via '*' to a real vector should throw

  JuliaMath/FFTW.jl#341 · Filter by author j-fu opened on Jul 17, 2026
  1

• Possible Runtime Collision Between FFTW.jl and an External Threaded FFTW Library on Linux

  JuliaMath/FFTW.jl#337 · Filter by author grincis opened on May 28, 2026
  2

• Would fftw_destroy_plan free the cache in fftw and slow down the creation of plan?

  JuliaMath/FFTW.jl#331 · Filter by author songjhaha opened on Jan 14, 2026

• mul!(A,FFT_plan,B) modifies the input B

  JuliaMath/FFTW.jl#326 · Filter by author cyanescent opened on Nov 6, 2025
  1

• Strided output

  JuliaMath/FFTW.jl#324 · Filter by author maximilian-gelbrecht opened on Sep 13, 2025
  4

• Unresolved calls when compiling with juliac and --trim

  JuliaMath/FFTW.jl#319 · Filter by author Yuan-Ru-Lin opened on Aug 7, 2025
  11

• support for FFTW with MPI

  JuliaMath/FFTW.jl#309 · Filter by author jsjie opened on Nov 8, 2024
  4

• Crash on Windows when explicitly setting number of threads

  JuliaMath/FFTW.jl#306 · Filter by author ludvigak opened on Aug 21, 2024
  3

• Consider adding inv_kind and logical_size to public API?

  JuliaMath/FFTW.jl#304 · Filter by author nick4f42 opened on Jul 3, 2024

• very slow on apple silicon?

  JuliaMath/FFTW.jl#279 · Filter by author AshtonSBradley opened on Nov 23, 2023
  10

• Julia crash when using fft_plan

  JuliaMath/FFTW.jl#277 · Filter by author JuhaHeiskala opened on Sep 8, 2023
  4

• Access Violation with multithreading

  JuliaMath/FFTW.jl#275 · Filter by author judober opened on Jul 6, 2023
  4

• Cannot install FFTW on Apple M2-MAX chip, libmkl_rt_path not defined

  JuliaMath/FFTW.jl#274 · Filter by author xiang-yu opened on Jul 2, 2023
  10

• add chainrules for r2r, dct

  JuliaMath/FFTW.jl#272 · Filter by author vpuri3 opened on Jun 14, 2023
  3

• Memory unsafety after deepcopy of plan

  JuliaMath/FFTW.jl#261 · Filter by author kbarros opened on Mar 1, 2023
  14

• plan_rfft eltype should be Complex

  JuliaMath/FFTW.jl#256 · Filter by author dlfivefifty opened on Dec 6, 2022

• support split complex arrays (separate real/imag arrays)

  JuliaMath/FFTW.jl#255 · Filter by author photor opened on Nov 11, 2022
  7

• Implementing features from FFTW++

  JuliaMath/FFTW.jl#248 · Filter by author 30609844 opened on Aug 17, 2022

• FFTW.nextfftlen(n)

  enhancement
  JuliaMath/FFTW.jl#247 · Filter by author JakeZw opened on Aug 3, 2022

• Error when using pmap and plan_fft!

  JuliaMath/FFTW.jl#243 · Filter by author Lightup1 opened on May 21, 2022
  7

• Allocations when multi-threading

  JuliaMath/FFTW.jl#240 · Filter by author Lightup1 opened on May 15, 2022
  5

• PATIENT and EXHAUSTIVE plans v slow compared to MEASURE

  JuliaMath/FFTW.jl#239 · Filter by author AshtonSBradley opened on May 13, 2022
  1

• Segmentation fault with threaded FFTW FFTW.set_num_threads(n) and julia --threads=k where k, n > 1

  JuliaMath/FFTW.jl#236 · Filter by author JakobAsslaender opened on Apr 12, 2022

• Is it possible to get the current number of active FFTW threads?

  JuliaMath/FFTW.jl#234 · Filter by author IanButterworth opened on Mar 26, 2022