On 30 October 2011 21:01, Pauli Virtanen <p...@iki.fi> wrote: > 30.10.2011 21:48, mark florisson kirjoitti: >> First, I'd like to report a bug. It seems ndarray does not implement >> tp_traverse or tp_clear, so if you have a reference cycle in an >> ndarray with dtype object none of those objects will ever be >> collected. > > Indeed, this is missing. http://projects.scipy.org/numpy/ticket/1003 > > If I recall correctly, there was something painful in implementing this > for Numpy arrays, though... > >> Secondly, please bear with me, I'm not a NumPy expert, but would it be >> possible to have NumPy export an API that can be called without the >> GIL? In the upcoming Cython release 0.16 (soon to be released) we will >> have what is called typed memoryviews [1], which allow you to obtain a >> typed view on any PEP 3118 buffer, and it allows you to do a lot more >> things without the GIL. e.g. it allows you to pass these views around, >> transpose them, slice them (in the same way as in NumPy but slightly >> more restricted, it doesn't support masks and such), index them etc >> without the GIL. > > The closest thing to making this to happen is the work made on porting > Numpy to IronPython. Basically, a major part of that involved ripping > the innards of Numpy out to a more reusable C library. It's been in a > merge-limbo for some time now, however.
Ah, that's too bad. Is it anywhere near ready, or was it abandoned for ironclad? Could you point me to the code? > -- > Pauli Virtanen > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion > _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion