[SciPy-Dev] building scipy with umfpack and amd

[Robert Kern]

On Wed, Jul 16, 2014 at 10:55 AM, Sai Rajeshwar <rajsai24 at gmail.com> wrote:
> hi,
>
>    im running  a code which uses scipy.signal.convolve and numpy.sum
> extensively. I ran the code on two machines. One machine took very less time
> compared to other with same configuration,  i checked the scipy
> configuration in that machine. i found scipy in that is built with umfpack
> and amd..
>
> is this the reason behind it..  in what way umfpack and amd aid scipy
> operations..?

They are not involved in either scipy.signal.convolve() or
numpy.sum(). They are involved in linear algebra operations on sparse
matrices.

-- 
Robert Kern