[yakubin]

> Not an expert, but it is my understanding that Julia is becoming an ever more serious competitor day by day.

And Julia uses BLAS which is written in Fortan.

[ChrisRackauckas]

Not necessarily. All of the DifferentialEquations.jl defaults use pure Julia BLASes which outperform the Fortran BLASes. Mainly, RecursiveFactorization.jl and Octavian.jl, which tend to match or outperform MKL and OpenBLAS on our benchmarking computers, form our workhorse.

https://raw.githubusercontent.com/JuliaLinearAlgebra/Octavia...

https://github.com/JuliaLinearAlgebra/Octavian.jl

https://github.com/YingboMa/RecursiveFactorization.jl