[SciPy-dev] [SciPy-user] some benchmark data for numarray, Numeric and scipy-newcore
oliphant.travis at ieee.org
Sat Dec 3 14:25:01 CST 2005
Gerard Vermeulen wrote:
>I have benchmarked some array manipulations using the default
>Numeric and numarray on my Mandrake-10.2 and a recent snapshot
>of the new scipy core.
Thanks for the benchmarks. There definitely may be additional
code-optimizations we can do. I would like to figure out why those
specific lines you mention are taking longer --- it may be some simply
The other thing to keep in mind is the buffer size. SciPy core has a
user-settable buffer size that determines when "mis-behaved" arrays (or
type-cast-needed arrays) are copied and when they aren't. Playing with
that size can make a difference on a per-platform basis. I just picked
a default size that seemed reasonable.
There are definitely some other optimizations that could be applied.
Benchmarks like these can help us find them. If there is really
something inherently slow in the ufunc algorithm then that needs to be
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