[Tutor] Python on multicore machines

[Stefan Behnel]

Kent Johnson, 27.11.2009 14:38:
> On Fri, Nov 27, 2009 at 4:57 AM, OkaMthembo wrote:
>> Is there a python implementation that takes advantage of all cores on modern
>> multicore machines?
> 
> Presumably you mean something like, "Is there a python implementation
> that can run multiple compute-bound processes on multiple cores
> concurrently."
> 
> Some options:
> - the multiprocessing module in the std lib - here is an example of
> using it with numpy:
> http://folk.uio.no/sturlamo/python/multiprocessing-tutorial.pdf

In case this is about some kind of numeric computation that doesn't require
Python object types, another option is to use Cython and put the compute
intensive code into a "nogil" function that you can run multi-threaded.

If the above doesn't apply, it may be quite possible that the GIL is not
even the limiting factor. Unless the OP provides more insight, this is
impossible to answer.

Stefan