Re: [matplotlib-devel] [Matplotlib-devel] Make matplotlib running on GPU/CUDA

[Francesco F. <f.f...@gm...>]

Thank you, Ben.

unfortunately I don't have experience developing opengl neither, but I'd
like to make an attempt riesuming this subject.

I am starting from this: https://github.com/ChrisBeaumont/mplgl

Can anyone confirm this is the last update we have for this project?

Francesco Faccenda

2017-09-13 16:21 GMT+02:00 Benjamin Root <ben...@gm...>:

> A bit of background regarding efforts in this area...
>
> A long time ago, some experiments were done to see if an opengl backend
> could be made for matplotlib. The results weren't that great, particularly
> for text rendering, so the effort was dropped. The core developers all
> agree that an opengl backend would be neat to have, but we all have
> limited, if any, experience developing opengl. Furthermore, such a backend
> would likely require a lot of rapid development and trial-n-error. So, we
> encouraged others to go develop a package or two separately, with the eye
> for bringing it back into matplotlib when it was ready. Glumpy and a few
> other projects were born from that prodding.
>
> VisPy was an attempt to consolidate the development efforts for those
> projects. The matplotlib devs had very fruitful discussions with some VisPy
> devs back at SciPy 2015, but the project became non-responsive shortly
> afterwards.
>
> Ben Root
>
>
> On Wed, Sep 13, 2017 at 3:31 AM, Francesco Faccenda <
> f.f...@gm...> wrote:
>
>> Thank you Chris for your reply.
>>
>> I have to admit I already stumbled on VisPy while doing my research on
>> the web. Still, I've got a lot of code already working with *matplotlib*.
>> Indeed, not only I plot data with it, but i manage a lot of *mpl events*
>> to provide the users usefool tools, like lines picking, tooltips, lines
>> copy/paste, square selectors for multiple selections, context menu and so
>> on. Moreover, I got matplotlib *embedded *on *wxpython *as well. While
>> at the beginning few lines were managed and noone complained, now that big
>> amout of data has to be displayed, the non-GPU core of the library is
>> starting to show its limits.
>>
>> Since matplotlib is a reference library for this kind of  applications, I
>> thought it deserved an update in this direction. If anyone is willing to do
>> so, I'm available to discuss possible solutions and also provide any help I
>> can give.
>>
>> Best regards,
>> Francesco Faccenda
>>
>> 2017-09-13 0:46 GMT+02:00 Chris Barker <chr...@no...>:
>>
>>> On Tue, Sep 12, 2017 at 8:47 AM, Francesco Faccenda <
>>> f.f...@gm...> wrote:
>>>
>>>> But there’s a good news, I have a nice GPU available (an NVIDIA Tesla
>>>> K40c), so I’d like to know if there is a way to make matplotlib run on it,
>>>> or maybe wrap it on some GPU/CUDA wrapper and make it run smoothly.
>>>>
>>>
>>> I tihnk you want VisPy:
>>>
>>> https://vispy.readthedocs.io/en/latest/
>>>
>>> It's a plotting package with a kinda like  matplotlib API, built on
>>> OpenGL.
>>>
>>> Unfortunately, it doesn't look like it's been updated in a while -- from
>>> teh docs. But the gitHub project is active:
>>>
>>> https://github.com/vispy/vispy
>>>
>>> So maybe it's only the docs that haven't been updated!
>>>
>>> But probably  a much better option than trying to shoehorn GPU rendering
>>> into MPL.
>>>
>>> The problem is that while MPL was designed to be "backend" independent
>>> -- so it is "easy" to plug in an alternative renderer, the rendering model
>>> is not really well suited to GPU rendering -- it would take a lot of
>>> refactoring to really be able to take advantage of the graphics card.
>>>
>>> -CHB
>>>
>>>
>>> --
>>>
>>> Christopher Barker, Ph.D.
>>> Oceanographer
>>>
>>> Emergency Response Division
>>> NOAA/NOS/OR&R            (206) 526-6959   voice
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>>>
>>> Chr...@no...
>>>
>>
>>
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