multiprocessing python

Question

What are the simplest way to use all cores off a computer for a python program ? In particular, I would want to parallelize a numpy function (which already exists). Is there something like openmp under fortran in python ?

Answer 1

Check out the multiprocessing library. It even allows to spread work across multiple computers.

Answer 2

It depends on what you want to do and how numpy is compiled on your machine (in some cases, some multicore use will be automatic). See this page for details.