[Dune-devel] [GSoC 2016]

[Andreas Dedner]

Hi Christian.
We are aware of that project and agree that it has a lot of advantages
over boost python - while at the same time having a very similar
structure. We decided against it for the time being because it is a very
new project (not even a year old looking at the git repo) and we wanted
to wait to see if it remains actively maintained. You seem to have more
information on this? And where did you hear that boost python is not
being maintained or actively developed?
So while I think pybind11 looks like a great project we went with boost
python for our first attempt since there is more documentation and help
online and because we thought it would be 'safer' for now. But if you
have other information that would be great to hear.
Thanks,
Andreas


On 14/03/16 09:36, Christian Engwer wrote:
> There is one thing one should consider and it is worthwile
> investigating this as part of the junior-job.
> 
> The boost::python code is a horrible mess, as it still uses C++03. And
> as far as I know it is basically unmaintained.
> 
> There is a new "version" called pybind11. It uses C++11, which
> dramatically simplifies the code and it is header-only, which I also
> consider a big benefit.
> 
> Ciao
> Christian
> 
> On Mon, Mar 14, 2016 at 09:20:46AM +0100, Martin Nolte wrote:
>> Hi Govind,
>>
>> as promised, we have added a junior job to get in touch with writing
>> Python bindings for DUNE, namely writing example bindings for our
>> FieldVector class in boost::python.
>>
>> We think boost::python Bindings will be easier to maintain over the
>> years (after all, we are C++ programmers). The downside is that we have
>> to port or rewrite the work done in the BEM++ project. In our opinion,
>> it's worth, though, because the bindings can be slimmer. Notice,
>> however, that this is not yet a final decision and you are highly
>> welcome to make another proposal by yourself.
>>
>> Best,
>>
>> Martin
>>
>> On 03/11/2016 08:25 PM, Andreas Dedner wrote:
>>> Hi Govind,
>>> Welcome to Dune to thanks for your interest in our GSoC projects.
>>>
>>> To answer your question w.r.t. boost::python and Cython. I would think that the first step would be to 
>>> evaluate the work done within the bem++ project which is based on cython.  For dune-fem we are providing bindings for 
>>> quite high level features of our packages while the bindings in bem++ export a big part of the grid interface. So the existing
>>> cython bindings are much more low level then what we are currently working on for dune-fem and would complement what we are doing and also be potentially of great interest to the whole dune community.
>>>
>>> We will add a junior job to the list over the weekend which is more focused towards the dune-python project. Until then 
>>> checking out bempp and dune and seeing how the cython bindings work and can be accessed within python would be a great starting point.
>>>
>>> Best
>>> Andreas 
>>>
>>>
>>>
>>>
>>> On 11/03/16 12:31, Govind Sahai wrote:
>>>> Hi to all,
>>>> I am Govind Sahai, currently a 3rd year engineering student in Indian
>>>> Institute of Technology, BHU Varanasi, India pursuing Integrated Dual
>>>> Degree in Mathematics And Computing. While searching for project ideas
>>>> on your ideas
>>>> <http://users.dune-project.org/projects/gsoc2016/wiki/Project_ideas#Project-4-Python-bindings-for-the-DUNE-grid-interface> page,
>>>> I found interest in "Project 4: Python bindings for the DUNE grid
>>>> interface". I have prior experience in C++ and Python, and also have
>>>> some experience with boost::python. Also since some part of DUNE is
>>>> already been exported to Python, using Cython, and dune-fem is using
>>>> boost::python, will the new DUNE module use Cython or boost::python
>>>> (or both)?
>>>> Also, the link of *BEM++* given in *Project Description* of *Project
>>>> 4* is giving *404* on my system.
>>>>
>>>> -- 
>>>> ------------------------------------------------------------------------------------
>>>>
>>>>
>>>> Govind Sahai
>>>> Indian Institute of Technology
>>>> Mathematical Sciences
>>>> Part-III
>>>> Varanasi-221005
>>>>
>>>>
>>>>
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>>>> http://lists.dune-project.org/mailman/listinfo/dune-devel
>>>
>>>
>>>
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>>
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>