How do you *get* the number of threads for BLAS operations in Julia?

Question

Julia's blas library has a function set_num_threads() which sets the threads for BLAS operations.

How do I get the number of threads being used by default, or currently?

Answer 1

As of Julia 1.6, you can use LinearAlgebra.BLAS.get_num_threads(). So the following code will do the trick:

using LinearAlgebra
BLAS.get_num_threads()