fork download
copy 
  1. import multiprocessing as mp
  2. import time
  3. import os
  4.  
  5. def square( nums , r , t1 ) :
  6.     print ("square started at :")
  7.     print ("%.6f" % (time.perf_counter()-t1))
  8.     for n in nums :
  9.         r.append(n*n)
  10.     print ("square endeded at :")
  11.     print ("%.6f" % (time.perf_counter()-t1))
  12.  
  13. def cube ( nums , r , t1 ) :
  14.     #time.sleep(2)
  15.     print ("cube started at   :")
  16.     print ("%.6f" % (time.perf_counter()-t1))
  17.     for n in nums :
  18.         r.append(n*n*n)
  19.     print ("cube endeded at   :")
  20.     print ("%.6f" % (time.perf_counter()-t1))
  21.  
  22.  
  23. if __name__ == "__main__" :
  24.     numbers = range(1,1000000)
  25.     results1 = []
  26.     results2 = []
  27.     t1 = time.perf_counter()
  28.  
  29.     # With multiprocessing :
  30.     p1 = mp.Process(target = square , args = (numbers , results1 , t1))
  31.     p2 = mp.Process(target = cube   , args = (numbers , results2 , t1))
  32.     p1.start()
  33.     #time.sleep(2)
  34.     p2.start()
  35.     p1.join()
  36.     print ("After p1.join()   :")
  37.     print ("%.6f" % (time.perf_counter()-t1))
  38.     p2.join()
  39.  
  40.     '''
  41.     # Without multiprocessing :
  42.     square(numbers , results1 ,t1)
  43.     cube(numbers , results2 , t1)
  44.  
  45.     '''
  46.     print ("square + cube :")
  47.     print ("%.6f" % (time.perf_counter()-t1))
  48.  
  49.     # your code goes here
Success #stdin #stdout 0.33s 56752KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
square started at :
0.011400
square endeded at :
0.208859
cube started at   :
0.007489
cube endeded at   :
0.280936
After p1.join()   :
0.213874
square + cube :
0.283224
https://ideone.com/Jf2gA4
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!