This example program of using the multiprocessing is crashing my i7 4 core windows7 64 bit computer (32 bit enthought Python 2.7), but is running fine in virtual machine Ubuntu with 4 cores assigned. Can anyone run it in their commputer in Windows7. My system memory (8 GB) is totally eaten by the program and mouse moves but I can not do anything with computer, even ctrl-alt-del to get to task manager.
# -*- coding: utf-8 -*- from numpy import arange,sqrt, random, linalg from multiprocessing import Pool global counter counter = 0 def cb(r): global counter print counter, r counter +=1 def det(M): return linalg.det(M) po = Pool() for i in xrange(1,300): j = random.normal(1,1,(100,100)) po.apply_async(det,(j,),callback=cb) po.close() po.join() print counter
Edited by pyTony