automatic multiprocessing

Cheng Soon Ong chengsoon.ong at inf.ethz.ch
Tue Jul 7 17:08:20 CEST 2009


Hi all,

I'm trying to automate the use of multiprocessing when it is available. The 
setting I have is quite simple, with a for loop where the operations inside are 
independent of each other. Here's a bit of code. function_inputs is a list of 
dictionaries, each of which match the signature of function_handle.

     if multiprocessing_present:
         # Passing keyword arguments to map still doesn't work
         cpus = multiprocessing.Pool()
         function_outputs = cpus.map(function_handle, function_inputs)
     else:
         function_outputs = []
         for kwargs in function_inputs:
             cur_out = function_handle(**kwargs)
             function_outputs.append(cur_out)

Am I missing something here? I cannot seem to get map to pass on keyword arguments.

Thanks in advance,
Cheng Soon



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