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Showing posts with the label Pool

Why Is Pool.map Slower Than Normal Map?

I'm trying the following code: import multiprocessing import time import random def square(x):… Read more Why Is Pool.map Slower Than Normal Map?

Python Multiprocessing Apply_async "assert Left > 0" Assertionerror

I am trying to load numpy files asynchronously in a Pool: self.pool = Pool(2, maxtasksperchild = 1)… Read more Python Multiprocessing Apply_async "assert Left > 0" Assertionerror

Criticism This Python Code (crawler With Threadpool)

how good this python code ? need criticism) there is a error in this code, some times script do pri… Read more Criticism This Python Code (crawler With Threadpool)

Optimizing Multiprocessing.pool With Expensive Initialization

Here is a complete simple working example import multiprocessing as mp import time import random … Read more Optimizing Multiprocessing.pool With Expensive Initialization

Python Multiprocessing Pool Oserror: Too Many Files Open

I have to check how much time do_something() takes in total for a pair of lists containing 30k elem… Read more Python Multiprocessing Pool Oserror: Too Many Files Open

Alternative Use Patterns For Python Multiprocessing Avoiding Proliferation Of Global State?

This (enormously simplified example) works fine (Python 2.6.6, Debian Squeeze): from multiprocessin… Read more Alternative Use Patterns For Python Multiprocessing Avoiding Proliferation Of Global State?

Profiling A Python Multiprocessing Pool

I'm trying to run cProfile.runctx() on each process in a multiprocessing pool, to get an idea o… Read more Profiling A Python Multiprocessing Pool