What are some basic examples of multiprocessing in Python?

What are some basic examples of multiprocessing in Python?

Multiprocessing in Python allows you to run multiple processes simultaneously. A basic example is using the multiprocessing module to create a simple parallel computation.

Can you show me a code example?

Sure! Here's a simple example:

import multiprocessing

def square(n):
    return n * n

if __name__ == '__main__':
    with multiprocessing.Pool() as pool:
        results = pool.map(square, [1, 2, 3, 4, 5])
    print(results)  # Output: [1, 4, 9, 16, 25]

What does the Pool class do?

The Pool class in the multiprocessing module allows you to manage a pool of worker processes. It can distribute tasks to these workers and collect results.

Are there any limitations to using multiprocessing?

Yes, some limitations include increased memory usage, complexity in sharing data between processes, and potential overhead from process creation.