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How to run C++ binaries with python in parallel?

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  How to run C++ binaries with python in parallel? Pony <lingyu.ma.fu@googlemail.com> - 2011-06-08 12:06 -0700
    Re: How to run C++ binaries with python in parallel? Chris Rebert <clp2@rebertia.com> - 2011-06-08 12:15 -0700

#7250 — How to run C++ binaries with python in parallel?

Hi all,

I'm a newbie with python, and I have a question about running parallel
C++ binaries with python.

Suppose I have a C++ binary named "test" and it takes two inputs, if I
want to run below three commands in bash:
test a b
test c d
test e f

What's the best way to run it parallel with python?
Can anyone give an example code for doing this?

Is there something similar to OpenMP in C++?

Thanks in advance!

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#7251

On Wed, Jun 8, 2011 at 12:06 PM, Pony <lingyu.ma.fu@googlemail.com> wrote:
> Hi all,
>
> I'm a newbie with python, and I have a question about running parallel
> C++ binaries with python.
>
> Suppose I have a C++ binary named "test" and it takes two inputs, if I
> want to run below three commands in bash:
> test a b
> test c d
> test e f
>
> What's the best way to run it parallel with python?

Use the `subprocess` module.

> Can anyone give an example code for doing this?

from subprocess import Popen
cmds = [['test', 'a', 'b'], ['test', 'c', 'd'], ['test', 'e', 'f']]
processes = [Popen(cmd) for cmd in cmds]
for proc in processes:
    proc.wait()

Cheers,
Chris
--
http://rebertia.com

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