[Numpy-discussion] New NEP: merging multiarray and umath

[Gregor Thalhammer]

Hi,

long time ago I wrote a wrapper to to use optimised and parallelized math functions from Intels vector math library 
geggo/uvml: Provide vectorized math function (MKL) for numpy <https://github.com/geggo/uvml>

I found it useful to inject (some of) the fast methods into numpy via np.set_num_ops(), to gain more performance without changing my programs.

While this original project is outdated, I can imagine that a centralised way to swap the implementation of math functions is useful. Therefor I suggest to keep np.set_num_ops(), but admittedly I do not understand all the technical implications of the proposed change.

best
Gregor
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