Improve cython performance#7
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zingale merged 1 commit intosbu-python-class:mainfrom Apr 25, 2024
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On my machine, with Cython 0.29.37, this runs the test case in 80ms, significantly better than numba and f2py at ~120ms.
zingale
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Apr 25, 2024
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np.abs(z[i, j])calls into Python unnecessarily, and usingabs(z[i, j])instead gives much better results. On my machine with Cython 0.29.37, this runs the test case in 80ms. This is significantly better than numba and f2py, which are tied for second place at ~120ms.Curiously, I get worse performance (~140ms) with Cython 3.0.5.
I used
cythonize -a mandel.pyxto find the slowdown. Before:and after: