Blas is an interface, All performant blas libraries need to written to specifically take advantage of modern hardware. Things like NetLib exists as reference i

Blas is an interface, All performant blas libraries need to written to specifically take advantage of modern hardware. Things like NetLib exists as reference implementations, they are not high performance. The point I am trying to make is that Numpy is unlikely to still be using the exact same code that was written in the 1970's unless its performance isn't critical. It is making the same function calls but the actual code will look pretty different.