[SciPy-user] Numarray vs. Numeric for adding doubles

Stephen Walton stephen.walton at csun.edu
Mon Aug 2 15:25:28 CDT 2004


On Sun, 2004-08-01 at 10:44, bulatov at cs.orst.edu wrote:
> I did a microbenchmark to time how long it takes to add up an array of 10
> million doubles.

Over on the numpy-discussion list, I and a couple of others have been
exchanging ways of building Numeric (and Numarray) so that they use the
ATLAS tuned BLAS/LAPACK routines instead of the generic ones shipped
with the packages.  Depending on the platform, factors of 3 to 10
speedups in solving large linear systems with solve_linear_equations
from the LinearAlgebra package have been seen.

-- 
Stephen Walton <stephen.walton at csun.edu>
Dept. of Physics & Astronomy, Cal State Northridge



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