.. _f-fastparallelfctmr:

module ``fctmr.fast_parallel_fctmr``
====================================







Short summary
+++++++++++++

module ``sparkouille.fctmr.fast_parallel_fctmr``

Simple parallelization of *mapper* and *reducer* based on :epkg:`numba`.
:epkg:`Python` does not easily allow to parallelize functions
as the :epkg:`GIL` blocks most of the tentatives by imposing
a single tunnel for all allocations, creation of :epkg:`python`
objects. The language implements it but in practice it is not.
This file is just a tentative to use :epkg:`numba` to parallelize
a mapper but the number of round trip between :epkg:`python`
and compiled :epkg:`C` makes it difficult to write something
generic.


:githublink:`%|py|14`






Functions
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+-------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| function                                                                                  | truncated documentation                                                                                                                                                     |
+===========================================================================================+=============================================================================================================================================================================+
| :func:`create_array_numba <sparkouille.fctmr.fast_parallel_fctmr.create_array_numba>`     | Creates an array of size nb knowing its signature.                                                                                                                          |
+-------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :func:`fast_parallel_mapper <sparkouille.fctmr.fast_parallel_fctmr.fast_parallel_mapper>` | Parallelizes a mapper based on :epkg:`numba` and more specifically `Automatic parallelization with @jit <https://numba.pydata.org/ numba-doc/dev/user/parallel.html>`_. ... |
+-------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+








Documentation
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.. automodule:: sparkouille.fctmr.fast_parallel_fctmr
    :members:
    :special-members: __init__
    :show-inheritance: