[IPython-User] distributed arrays
Tue Mar 8 10:27:23 CST 2011
I've managed to install ipythondistarrays with fftw-3.3.alpha1. My problem
is that I get an error when trying to run a simple test:
>>> import distarray as da
---> 16 from distarray.fft import py_fftw
ImportError: libfftw3_mpi.so.3: cannot open shared object file: No such file
This happens when the module tries to import py_fftw.so. I've checked that I
have libfftw3_mpi.so.3 in /usr/include/lib. Am I missing something? I've
tried loading the library directly with
ctypes.cdll.LoadLibrary('fftw3_mpi.so.3') but that didn't work either.
On 4 March 2011 18:05, Brian Granger <firstname.lastname@example.org> wrote:
> > First of all thanks for IPython, which I think is a fantastic software. I
> > used to work with Matlab but I have switched to Python a couple of years
> > and never looked back.
> > I'm a postdoc working in fluid dynamics and acoustics and have to compute
> > Fourier transforms on very big arrays (~ 4GB). I've stumbled upon this
> > http://www.youtube.com/watch?v=Sa3SHmiXxbw which demos distributed
> arrays in
> > Python. It shows how to distribute an array seemlessly over several
> > processors, and how to carry out sevral operations (including the fft). I
> > was really impressed. This is exactly what I would need.
> > However I haven't been able to find more information on this. I've only
> > found this old Trac repository
> > but I don't know how to download or clone it. Is the project still
> > I'd be happy to help revive this.
> The distributed array stuff has not moved forward at all and has quite
> a few bugs in it. But, here is the latest code:
> I would also check out the following:
> I am sure these have fftw support, but they are much more stable and
> it might be easy to add FFTW support.
> > Any pointers would be much appreciated.
> > Sam
> > _______________________________________________
> > IPython-User mailing list
> > IPython-User@scipy.org
> > http://mail.scipy.org/mailman/listinfo/ipython-user
> Brian E. Granger, Ph.D.
> Assistant Professor of Physics
> Cal Poly State University, San Luis Obispo
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