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. -- Pauli Virtanen _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
