Code introspection recommendations/advice

General Usage
1

After some testing I obtained that calling the C FFTW library directly from julia is much faster (x5 faster) than using the FFTW julia package. Now I want to understand where this difference might be coming from, therefore I have been inspecting FFTW’s source code.

There is a lot of generated code in FFTW’s source code that I have been reading and preprocessing in my head, but I would like to print the generated functions on my screen. Any ideas on how I can do this?

I checked a similar question, but these answers don’t apply to my case. One the one hand, I can’t install Sugar.jl. Also, Base.methods(f) does not work with constructors.

2

Have you started Julia with multiple threads? FFTW. jl is sometimes very slow on small kernels due to Julia’s threading.
https://github.com/JuliaMath/FFTW.jl/issues/121

3

Thanks for the suggestion. I checked and `Base.Threads.nthreads() = 1.
I am evaluating my code further to make sure that my speed tests are comparable. I’ll share a working example if I keep observing the speed differences.