upstream/ipython Files · docs/examples/newparallel/helloworld.py

don't use zmq.select due to bug in pyzmq 2.1.7...

don't use zmq.select due to bug in pyzmq 2.1.7 pyzmq's zmq.select timeout has the wrong units in 2.1.7, resulting in a timeout of 1 waiting for 1000s before raising. Use zmq.Poller instead, which doesn't have this bug.

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      """

      A Distributed Hello world

      Ken Kinder <ken@kenkinder.com>

      """

      from IPython.parallel import Client

      rc = Client()

      def sleep_and_echo(t, msg):

          import time

          time.sleep(t)

          return msg

      view = rc.load_balanced_view()

      world = view.apply_async(sleep_and_echo, 3, 'World!')

      hello = view.apply_async(sleep_and_echo, 2, 'Hello')

      print "Submitted tasks:", hello.msg_ids, world.msg_ids

      print hello.get(), world.get()

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				"""
				A Distributed Hello world
				Ken Kinder <ken@kenkinder.com>
				"""
				from IPython.parallel import Client

				rc = Client()

				def sleep_and_echo(t, msg):
				import time
				time.sleep(t)
				return msg

				view = rc.load_balanced_view()

				world = view.apply_async(sleep_and_echo, 3, 'World!')
				hello = view.apply_async(sleep_and_echo, 2, 'Hello')
				print "Submitted tasks:", hello.msg_ids, world.msg_ids
				print hello.get(), world.get()