[Numpy-discussion] Speed performance on array constant set
ndarray at mac.com
Thu Jan 19 19:53:02 CST 2006
On 1/19/06, Mark Heslep <mark at mitre.org> wrote:
> A >10x hit. Am I using the preferred / optimal NumPy method here? I
> scanned the earlier Scalar posts but thought that was boolean type
> only issue.
On my system:
> python -m timeit -s "import numpy as na; a = na.zeros((1000,1000))" "a[:,:] = 7"
100 loops, best of 3: 17.1 msec per loop
> python -m timeit -s "import numpy as na; a = na.zeros((1000,1000))" "a.fill(7)"
100 loops, best of 3: 6.28 msec per loop
You can also use empty instead of zeros, but that wont affect the
timings that you presented.
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