[Numpy-discussion] Is numpy.convolve based on LAPACK routine?

Pauli Virtanen pav@iki...
Wed Nov 10 18:15:03 CST 2010


On Thu, 11 Nov 2010 00:43:32 +0100, LittleBigBrain wrote:
> I am wondering, is numpy.convolve based on LAPACK routine? Can it be
> speedup by using ATLAS?

LAPACK and Atlas do not AFAIK have convolution routines -- that's not 
linear algebra. MKL on the other hand would have some. The implementation 
in Numpy is the straightforward one, without SIMD etc.

For large datasets, scipy.signal.fftconvolve should be faster.

-- 
Pauli Virtanen



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