Top "Multiprocessing" questions

Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system.

Show the progress of a Python multiprocessing pool imap_unordered call?

I have a script that's successfully doing a multiprocessing Pool set of tasks with a imap_unordered() call: p = multiprocessing.…

python multiprocessing
What exactly is Python multiprocessing Module's .join() Method Doing?

Learning about Python Multiprocessing (from a PMOTW article) and would love some clarification on what exactly the join() method is …

python multiprocessing
multiprocessing.Pool: What's the difference between map_async and imap?

I'm trying to learn how to use Python's multiprocessing package, but I don't understand the difference between map_async and …

python multiprocessing python-multiprocessing
Using 100% of all cores with the multiprocessing module

I have two pieces of code that I'm using to learn about multiprocessing in Python 3.1. My goal is to use 100% …

python python-3.x multiprocessing
Multiprocessing : use tqdm to display a progress bar

To make my code more "pythonic" and faster, I use "multiprocessing" and a map function to send it a) the …

python multiprocessing progress-bar tqdm
Sharing a complex object between Python processes?

I have a fairly complex Python object that I need to share between multiple processes. I launch these processes using …

python process multiprocessing sharing
Keyboard Interrupts with python's multiprocessing Pool

How can I handle KeyboardInterrupt events with python's multiprocessing Pools? Here is a simple example: from multiprocessing import Pool from …

python multiprocessing pool keyboardinterrupt
Multiprocessing - Pipe vs Queue

What are the fundamental differences between queues and pipes in Python's multiprocessing package? In what scenarios should one choose one …

python performance queue multiprocessing pipe
Use numpy array in shared memory for multiprocessing

I would like to use a numpy array in shared memory for use with the multiprocessing module. The difficulty is …

python numpy multiprocessing shared
Python multiprocessing safely writing to a file

I am trying to solve a big numerical problem which involves lots of subproblems, and I'm using Python's multiprocessing module (…

python io multiprocessing mutex