Hello Fellas, I am relatively new to Julia Programming. So far, Julia’s high performance has caught my attention. However, it was disappointing to see that MATLAB performs 20 times faster in executing the following program. I tested this program on two different workstations, getting consistent res…

Yup, just putting the Julia code in a function (and fixing the loop order ) makes it more than 30x faster: function doit!(T, Tₖ₋₁=copy(T); tolerance=1e-6) m, n = size(T) error = 1.0 while error > tolerance Tₖ₋₁ .= T for j = 2:m-1, i = 2:n-1 T[i, j] = 1/4*(T[i,…

[image] Elrod: The “Vectorization” in LoopVectorization is not about “vectorized form”, but about “vector” (i.e. SIMD) CPU instructions Thanks for the clarification! And @DNF too for the wiki link!

MATLAB outperforms Julia (20 times faster) running this nested loop

General Usage Performance

cmichelenstrofer January 10, 2023, 2:03am 22

Thanks for the clarification! And @DNF too for the wiki link!

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MATLAB outperforms Julia (20 times faster) running this nested loop

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