[Numpy-discussion] Numpy Benchmarking
robert.kern at gmail.com
Tue Jun 27 22:40:46 EDT 2006
Keith Goodman wrote:
> Scipy computes the inverse of a matrix faster than numpy (except if
> the dimensions of x are small). But scipy is slower than numpy for
> eigh (I only checked for symmetric positive definite matrices):
Looks like scipy uses *SYEV and numpy uses the better *SYEVD (the D stands for
divide-and-conquer) routine. Both should probably be using the RRR versions
(*SYEVR) if I'm reading the advice in the LUG correctly.
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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