Tis a pleasure, Paul. have no experience with Cython vs Boost.Python benchmarking, but a real world user of the latter had something to say at http://www.python.org/about/quotes/ (last review).
On Sun, Oct 17, 2010 at 11:29 PM, Paul <paula...@gmail.com> wrote: > Thank you all for your kind suggestions. It seem that cython and > boost.python both look like a good suggestions; SWIG seems like a good > tool, but may not meet my requirements. > Quick google seems to suggest that boost.python is 7 times slower [1], > however. Any thoughts about speed performance between the two? > > [1] > http://blog.chrischou.org/2010/02/28/simple-benchmark-between-cython-and-boost-python/ > > Thank you, > Paul > > And a link I found today. > [2] > http://koichitamura.blogspot.com/2008/06/various-ways-to-integrate-python-and-c.html > > On Sun, Oct 17, 2010 at 1:56 PM, Sithembewena Lloyd Dube > <zebr...@gmail.com> wrote: > > Also have a look at Boost.Python: > > > > http://www.boost.org/doc/libs/1_44_0/libs/python/doc/index.html > > > > On Fri, Oct 15, 2010 at 11:29 PM, Paul <paula...@gmail.com> wrote: > >> > >> Hi there, > >> > >> I've been using C/C++ for many years (python, just reading about it). > >> > >> I have a software written in C/C++ but considering porting most of it > >> to python, as it seems like it's a better choice for decision making > >> portion of the code. I'm also thinking about having a 'matlab' like > >> interface for reading, processing, and writing. > >> > >> In my current C++ code, I would read data into a vector of structs > >> (which contains other simple vectors, strings, and structs) and it can > >> be as large as 500MB to 2GB. The data gets processed (requires random > >> access). The result is then written out. > >> > >> I would like to make modules for python. The problem is that the > >> vector of structs that is very large. First, is it possible to pass > >> such structures around to and from python and C/C++? What would be > >> the overhead cost of having a large structure that needs to be passed > >> to and from the C/C++ modules? > >> > >> # I imagine I'd use the newly written software this way: > >> >>> import c_stuff # my C/C++ module > >> >>> largestuff = c_stuff.read(file) # read from disk > >> >>> c_stuff.process(largestuff, someparams1) # processing, requires > >> >>> random access to the vector > >> >>> c_stuff.process(largestuff, someparams2) > >> ... > >> >>> c_stuff.process(largestuff, someparams10000) # the whole thing may > >> >>> take a few minutes to days > >> >>> > >> >>> import python_stuff # some module written in python to process the > >> >>> data as well > >> >>> > >> >>> python_stuff.process(largestuff, otherparams1) # It's important > that > >> >>> this data can be read (and I hope written) by python code > >> >>> python_stuff.process(largestuff, otherparams2) > >> >>> > >> >>> c_stuff.write(largestuff) #write result > >> > >> Thank you in advance, > >> Paul > >> _______________________________________________ > >> Tutor maillist - Tutor@python.org > >> To unsubscribe or change subscription options: > >> http://mail.python.org/mailman/listinfo/tutor > > > > > > > > -- > > Regards, > > Sithembewena Lloyd Dube > > http://www.lloyddube.com > > > -- Regards, Sithembewena Lloyd Dube http://www.lloyddube.com
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