[AstroPy] Plan to port astropy to python3?

[Bridgman, William T.]

Yes, I should have said 'multiprocessing' instead of 'threading'.   
I've had some successful experiments with python 2.6 & 2.7 using  
multiprocessing but my understanding is that Python 3 improves on this.

I have encountered weirdness when reading/writing .npz files in  
multiple processes but could not reliably reproduce it.

Tom
On Jun 7, 2011, at 12:00 PM, Peter Erwin wrote:

>
> On Jun 7, 2011, at 5:39 PM, Perry Greenfield wrote:
>
>>
>> On Jun 7, 2011, at 11:22 AM, Bridgman, William T. wrote:
>>
>>> This is the first I've heard that my main components of interest are
>>> ALL working on Python 3.
>>>
>>> Which means I will probably try a test installation of Python 3 on  
>>> one
>>> of my systems this summer.
>>>
>>> I want to make more use of threading on multi-core systems since
>>> graphical rendering is a lot of 'embarrassingly parallel' type
>>> processing.
>>> http://en.wikipedia.org/wiki/Embarrassingly_parallel
>>>
>>> Tom
>>>
>> Threading in Python won't necessarily exploit multi-core systems very
>> well. You may want to look at other alternatives in Python.
>>
>
>
> I believe the multiprocessing library (introduced in Python 2.6) is  
> designed to
> take advantage of mulitple cores (it spawns & communicates with  
> separate processes,
> rather than Python threads, which have to coexist within the parent  
> Python
> process).
>
> (I haven't tried using it yet, though.)
>
> =============================================================
> Peter Erwin                   Max-Planck-Insitute for Extraterrestrial
> erwin at mpe.mpg.de              Physics, Giessenbachstrasse
> tel. +49 (0)89 30000 3695     85748 Garching, Germany
> fax  +49 (0)89 30000 3495     http://www.mpe.mpg.de/~erwin
>
>
>
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--
Dr. William T."Tom" Bridgman               Scientific Visualization  
Studio
Global Science & Technology, Inc.          NASA/Goddard Space Flight  
Center
Email: William.T.Bridgman at nasa.gov         Code 610.3
Phone: 301-286-1346                        Greenbelt, MD 20771
FAX:   301-286-1634                        http://svs.gsfc.nasa.gov/