On Mon, 2019-01-07 at 12:15 -0800, Keith Goodman wrote:
> Numpy uses pairwise summation along the fast axis if that axis
> contains no more than 8192 elements. How was 8192 chosen?
>
It is simply a constant used throughout the ufunc machinery (and
iteration) for cache friendliness.
However, that
Numpy uses pairwise summation along the fast axis if that axis contains no
more than 8192 elements. How was 8192 chosen?
Doubling to 16384 would result in a lot more function call overhead due to
the recursion. Is it a speed issue? Memory? Or something else entirely?
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