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scikit-hep / histbook

Versatile, high-performance histogram toolkit for Numpy.
BSD 3-Clause "New" or "Revised" License
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filling is slower with numpy 1.15 #44

Open imandr opened 6 years ago

imandr commented 6 years ago

It looks like histogram filling is about 10 times slower with numpy 1.15 than with 1.13

imandr commented 6 years ago

The histogram is simple 1-axis like this: Hist(bin("NJets", 20, 0, 20))

jpivarski commented 6 years ago

! I recently upgraded to numpy 1.5 too, and I get all sorts of mornings about binary incompatibilities. There's something going on with this release. There will be a performance at great when I replace some of the numpy calls with numexpr, but like everything that will have to wait until conferences are over.