upstream/ipython Files · docs/examples/parallel/multienginemap.py

Backport PR : ipcluster broken with any batch (PBS/LSF/SGE)...

Backport PR : ipcluster broken with any batch (PBS/LSF/SGE) I have setup ipcluster_config.py to start with LSF: ``` c.IPClusterStart.controller_launcher_class = 'LSF' c.IPClusterStart.engine_launcher_class = 'LSF' ``` But the ipcluster command fails to start the engines: ``` ipcluster start --profile=lsf -n 10 ``` The problem is fixed if I add quotes to the launch command string ```cmd``` in ```launcher.py```. ``` diff --git a/IPython/parallel/apps/launcher.py b/IPython/parallel/apps/launcher.py index e752d2a..6035303 100644 --- a/IPython/parallel/apps/launcher.py +++ b/IPython/parallel/apps/launcher.py @@ -73,7 +73,7 @@ WINDOWS = os.name == 'nt' # Paths to the kernel apps #----------------------------------------------------------------------------- -cmd = "from IPython.parallel.apps.%s import launch_new_instance; launch_new_instance()" +cmd = "\"from IPython.parallel.apps.%s import launch_new_instance; launch_new_instance()\"" ipcluster_cmd_argv = [sys.executable, "-c", cmd % "ipclusterapp"] ```

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        Thomas Kluyver
    
Update print syntax in parallel examples.

              r6455
            
      from __future__ import print_function

        MinRK
    
updates to docs and examples

              r3670
            
      from IPython.parallel import Client

      rc = Client()

      view = rc[:]

      result = view.map_sync(lambda x: 2*x, range(10))

        Thomas Kluyver
    
Update print syntax in parallel examples.

              r6455
            
      print("Simple, default map: ", result)

        MinRK
    
updates to docs and examples

              r3670
            
      ar = view.map_async(lambda x: 2*x, range(10))

        Thomas Kluyver
    
Update print syntax in parallel examples.

              r6455
            
      print("Submitted map, got AsyncResult: ", ar)

        MinRK
    
updates to docs and examples

              r3670
            
      result = ar.r

        Thomas Kluyver
    
Update print syntax in parallel examples.

              r6455
            
      print("Using map_async: ", result)

        MinRK
    
updates to docs and examples

              r3670
            
      @view.parallel(block=True)

      def f(x): return 2*x

        MinRK
    
update a few parallel examples...

              r4184
            
      result = f.map(range(10))

        Thomas Kluyver
    
Update print syntax in parallel examples.

              r6455
            
      print("Using a parallel function: ", result)

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Thomas Kluyver Update print syntax in parallel examples.	r6455	from __future__ import print_function

MinRK updates to docs and examples	r3670	from IPython.parallel import Client

		rc = Client()
		view = rc[:]
		result = view.map_sync(lambda x: 2*x, range(10))
Thomas Kluyver Update print syntax in parallel examples.	r6455	print("Simple, default map: ", result)
MinRK updates to docs and examples	r3670
		ar = view.map_async(lambda x: 2*x, range(10))
Thomas Kluyver Update print syntax in parallel examples.	r6455	print("Submitted map, got AsyncResult: ", ar)
MinRK updates to docs and examples	r3670	result = ar.r
Thomas Kluyver Update print syntax in parallel examples.	r6455	print("Using map_async: ", result)
MinRK updates to docs and examples	r3670
		@view.parallel(block=True)
		def f(x): return 2*x

MinRK update a few parallel examples...	r4184	result = f.map(range(10))
Thomas Kluyver Update print syntax in parallel examples.	r6455	print("Using a parallel function: ", result)