Calling python from C with OpenMP
Øystein Schønning-Johansen
oysteijo at gmail.com
Fri May 13 16:16:58 EDT 2016
On Friday, May 13, 2016 at 7:12:33 PM UTC+2, MRAB wrote:
> Every PyGILState_Ensure call must be matched with a PyGILState_Release
> call. The way it's currently written, it won't call PyGILState_Release
> if ret is NULL.
Yeah, that's tiny bug, however it is not the main problem...
> However, I don't think you'll gain much here because you can gain from
> multi-threading only if the threads can run in parallel. You need to
> hold the GIL while making Python calls, and only 1 thread can hold the
> GIL at any time.
In addition to the fact that it still does not work, what you here point out, is the main problem. I actually think I'm giving up for now. Maybe I'm able to solve this later.... (when python does not use a GIL anymore...?)
Thanks to Sturla and MRAB anyway!
-Øystein
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