Jochen wrote: > Hi all, > > I just wrote ctypes bindings to fftw3 (see > http://projects.scipy.org/pipermail/scipy-user/2009-January/019557.html > for the post to scipy). > Now I have a couple of numpy related questions: > > In order to be able to use simd instructions I > create an ndarray subclass, which uses fftw_malloc to allocate the > memory and fftw_free to free the memory when the array is deleted. This > works fine for inplace operations however if someone does something like > this: > > a = fftw3.AlignedArray(1024,complex) > > a = a+1 > > a.ctypes.data points to a different memory location (this is actually an > even bigger problem when executing fftw plans), however > type(a) still gives me <class 'fftw3.planning.AlignedArray'>.
This might help some: http://www.scipy.org/Subclasses Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
