[Python-Dev] GIL removal question
Sturla Molden
sturla at molden.no
Sun Aug 14 03:53:15 CEST 2011
Den 13.08.2011 17:43, skrev Antoine Pitrou:
> These days we have PyGILState_Ensure():
> http://docs.python.org/dev/c-api/init.html#PyGILState_Ensure
>
With the most recent Cython (0.15) we can just do:
with gil:
<suite>
to ensure holding the GIL.
And similarly from a thread holding the GIL
with nogil:
<suite>
to temporarily release it.
There are also some OpenMP support in Cython 0.15. OpenMP is much easier
than messing around with threads manually (it moves all the hard parts
of multithreading to the compiler). Now Cython almost makes it look
Pythonic:
http://docs.cython.org/src/userguide/parallelism.html
Sturla
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