client.py :  » Development » Pyro » Pyro-3.10 » examples » distributed-computing » Python Open Source

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Python Open Source » Development » Pyro 
Pyro » Pyro 3.10 » examples » distributed computing » client.py
import Pyro.core
import Pyro.errors
import Pyro.util
import tasks.md5crack
import tasks.sorting
import time


Pyro.config.PYRO_MOBILE_CODE=1    # Enable mobile code (for the tasks)

Pyro.core.initClient()

selected_task = raw_input("What task do you want to run (md5 or sorting; m/s): ")

if selected_task in ('m','md5'):
  UIClass = tasks.md5crack.UserInterface
  TaskClass = tasks.md5crack.CrackTask
elif selected_task in ('s','sorting'):
  UIClass = tasks.sorting.UserInterface
  TaskClass = tasks.sorting.SortTask
else:
  raise ValueError("invalid task chosen")
    
ui=UIClass()
arguments = ui.begin()
task = TaskClass(arguments)
ui.info(task)
  
choice=input("Do you want sequential/normal (1) or distributed processing (2) ? ")
if choice==1:
  print "(using normal sequential local processing)"
  start=time.time()
  tasks=task.split(3)        # just for the fun of it
  
  while tasks:
    t=tasks.pop()
    print "(local) running task",t
    t.run()
    if task.join(t):
      break
  print "(local) gathering result"
  result=task.getResult()
  duration=time.time()-start

elif choice==2:
  print "(using distributed parallel processing)"
  dispatcher = Pyro.core.getProxyForURI("PYRONAME://:Distributed.Dispatcher")
  start=time.time()
  try:
    result=dispatcher.process(task)        # the interesting stuff happens here :)
  except Exception,x:
    print "".join(Pyro.util.getPyroTraceback(x))
  duration=time.time()-start
    
ui.result(result)
print "It took %.3f seconds." % duration
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