Playing with Python Multiprocessing

playing-with-python-multiprocessing.py

import multiprocessing
import time

from multiprocessing import Pool

def f(x):
  return x**2

print("Number of CPUs available: ", multiprocessing.cpu_count())

print("Start parallel computation")
start = time.clock()
with Pool() as p:
  l = p.map(f, range(0, 10000000))
end = time.clock()
print("End parallel computation: %.2gs" % (end - start))

print("Start sequential computation")
start = time.clock()
list(map(f, range(0, 10000000)))
end = time.clock()
print("End parallel computation: %.2gs" % (end - start))