[Numpy-discussion] Openmp support (was numpy's future (1.1 and beyond): which direction(s) ?)

Neal Becker ndbecker2@gmail....
Sat Mar 22 12:43:17 CDT 2008


James Philbin wrote:

> Personally, I think that the time would be better spent optimizing
> routines for single-threaded code and relying on BLAS and LAPACK
> libraries to use multiple cores for more complex calculations. In
> particular, doing some basic loop unrolling and SSE versions of the
> ufuncs would be beneficial. I have some experience writing SSE code
> using intrinsics and would be happy to give it a shot if people tell
> me what functions I should focus on.
> 
> James

gcc keeps advancing autovectorization.  Is manual vectorization worth the
trouble?



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