On Dec 25, 2009, at 11:37 AM, Dag Sverre Seljebotn wrote:
> Michael G wrote:
>> Hello,
>>
>> I was wondering if there has been any consensus regarding the openMP
>> implementation (see http://wiki.cython.org/enhancements/parallel). I
>> would put my vote for proposal 6 or 7 simply because they seem to
>> allow for the most control over shared/private variables and the
>> scheduler openMP is using. On the other-hand, the comments based
>> implementations would be very easy to code!
>>
>> So the question is: what are people doing right now to implement
>> openMP in their code?
>
> Not using Cython. All the OpenMP I have heard of has been using C
> and just
> wrapping the code in Cython. Doing so would be a terrible experience.
>
> If you want to help make this happen let us know. As far as I know,
> none
> of the existing Cython developers have any personal interest in
> OpenMP for
> their own projects.
>
> BTW, my vote is for a more or less direct mapping of OpenMP into the
> Cython language first time around (through e.g. magic functions in a
> magic
> cython.openmp namespace). There's loads of features which can't be
> mapped
> directly to a single for-loop. Then, once one has some experience
> using
> OpenMP and Cython together and common patterns emerges, one can look
> into
> http://wiki.cython.org/enhancements/parallel.
+1
OpenMP could probably be supported directly from Cython with a cdef
extern block and a special cython.cpragma("any string") that gets spit
out right to the C source.
- Robert
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