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Author Zahari.Dim
Recipients Zahari.Dim, docs@python
Date 2015-06-19.17:05:37
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The documentation never makes clear what a "task" in the context of At best, it says:

"This method chops the iterable into a number of chunks which it submits to the process pool as separate tasks. The (approximate) size of these chunks can be specified by setting chunksize to a positive integer."

in the map documentation. However it does not say how this chunks are calculated by default, making the maxtasksperchild argument not very useful. The fact that a function evaluated by map is not a "task" should be much clearer in the documentation.

Also, in the examples, such as:

 with multiprocessing.Pool(PROCESSES) as pool:
        # Tests

        TASKS = [(mul, (i, 7)) for i in range(10)] + \
                [(plus, (i, 8)) for i in range(10)]

        results = [pool.apply_async(calculate, t) for t in TASKS]
        imap_it = pool.imap(calculatestar, TASKS)
        imap_unordered_it = pool.imap_unordered(calculatestar, TASKS)

TASKS are not actually "tasks" but rather "task groups".
Date User Action Args
2015-06-19 17:05:37Zahari.Dimsetrecipients: + Zahari.Dim, docs@python
2015-06-19 17:05:37Zahari.Dimsetmessageid: <>
2015-06-19 17:05:37Zahari.Dimlinkissue24475 messages
2015-06-19 17:05:37Zahari.Dimcreate