Several people on the discourse have recently suggested I use views to improve my code’s performance. However, for some reason, it actually slows down my code when I use them. To test this, I wrote the following MWE: using FFTW function with_views(N, M) ψ = Array{Complex{Float64}}(undef, M, N…

Using views slows down my code

pablosanjose October 23, 2020, 6:54am 5

I don’t think the allocations are coming from FFTW. Try

@views ψ[i+1, :] .= T2(ψ[i,:],W, 1.0/M, F, F̃)

(note the .=)

3 Likes

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