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  • Committer: Bazaar Package Importer
  • Author(s): Piotr Ożarowski
  • Date: 2011-02-15 09:08:36 UTC
  • mfrom: (2.1.2 experimental)
  • Revision ID: james.westby@ubuntu.com-20110215090836-phh4slym1g6muucn
Tags: 2.0.10.1-2
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examples/heartbeat/heart.py
 
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#!/usr/bin/env python
 
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"""This launches an echoing rep socket device,
 
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and runs a blocking numpy action. The rep socket should
 
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remain responsive to pings during this time. Use heartbeater.py to
 
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ping this heart, and see the responsiveness.
 
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Authors
 
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-------
 
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* MinRK
 
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"""
 
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import time
 
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import numpy
 
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import zmq
 
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from zmq import devices
 
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ctx = zmq.Context()
 
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dev = devices.ThreadDevice(zmq.FORWARDER, zmq.SUB, zmq.XREQ)
 
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dev.setsockopt_in(zmq.SUBSCRIBE, "")
 
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dev.connect_in('tcp://127.0.0.1:5555')
 
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dev.connect_out('tcp://127.0.0.1:5556')
 
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dev.start()
 
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#wait for connections
 
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time.sleep(1)
 
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A = numpy.random.random((2**11,2**11))
 
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print "starting blocking loop"
 
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while True:
 
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    tic = time.time()
 
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    numpy.dot(A,A.transpose())
 
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    print "blocked for %.3f s"%(time.time()-tic)
 
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