Python: 64bit Numpy?

Question

I am currently working with numpy on a 32bit system (Ubuntu 10.04 LTS).

Can I expect my code to work fluently, in the same manner, on a 64bit (Ubuntu) system?

Does numpy have an compatibility issues with 64bit python?

Have you checked the numpy site? Why not look at their bug tracker and see if anything's shown up? — Marc B
– Marc B, Commented Jul 5, 2011 at 15:32
I've used numpy/scipy on 64-bit system with no 64-bit issues whatsoever for the past 4 years. (And it was about 35% faster doing 64-bit double math then using the core 2 duo in 32-bit mode.) — dr jimbob
– dr jimbob, Commented Jul 5, 2011 at 15:36

Ignacio Vazquez-Abrams · Accepted Answer · 2011-07-05 15:31:29Z

4

NumPy has been used on 64-bit systems of all types for years now. I doubt you will find anything new that doesn't show up elsewhere as well.

answered Jul 5, 2011 at 15:31

Ignacio Vazquez-Abrams

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VolkA · Accepted Answer · 2011-07-05 15:38:37Z

2

There are official Ubuntu packages and the installation instructions explicitly mention AMD64 as a target plattform: Installing SciPy/Linux.

The code uses type identifiers with exact size definitions (e.g. "float64") internally, so the code will also be portable between plattforms. You should notice a performance impact for the better or worse depending on the type of algorithms you run.

answered Jul 5, 2011 at 15:38

VolkA

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2 Comments

user3262424 Over a year ago

thank you. what do you mean by AMD64 as a target plattform?

Thomas K Over a year ago

@user326424: That means it can be compiled for 64 bit processors.

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