[SciPy-user] how to build in fftw3 support?
Thu May 22 12:41:40 CDT 2008
Thanks for the reply. I made sure that scipy/fftpack/_fftpack.so
depends on libfftw3. Now if I
from scipy import fftpack
then I got fftpack (probably using fftw3).
Here're some confusions I'd like to get clarified:
1. What's scipy's fft() function in relation to scipy.fftpack package?
2. What're numpy's fft package (from numpy import fft) and fftpack
package (from numpy.fft import fftpack)? are they related to
scipy.fftpack at all?
On Wed, May 21, 2008 at 7:21 PM, Robert Kern <firstname.lastname@example.org> wrote:
> On Wed, May 21, 2008 at 9:17 PM, Lin Shao <email@example.com> wrote:
> > Hello
> > I have fftw3 installed and setup.py seems to have found it:
> > fftw3_info:
> > libraries fftw3 not found in /usr/local/lib
> > libraries fftw3 not found in /opt/lib
> > FOUND:
> > libraries = ['fftw3']
> > library_dirs = ['/usr/lib']
> > define_macros = [('SCIPY_FFTW3_H', None)]
> > include_dirs = ['/usr/include']
> > But I don't see fftw3 in my scipy build.
> There is no scipy.fftw3 package, if that is what you were looking for.
> Everything is under scipy.fftpack. In particular, you can use the
> program ldd to double-check that the file scipy/fftpack/_fftpack.so is
> linked to libfftw3.
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