On Wed, Jun 26, 2013 at 7:30 AM, mark florisson <markflorisso...@gmail.com>wrote:
> On 26 June 2013 09:05, Dag Sverre Seljebotn <d.s.seljeb...@astro.uio.no> > wrote: > > On 06/25/2013 04:21 PM, Frédéric Bastien wrote: > >> > >> Hi, > >> > >> I wasn't able to attend this year Scipy Conference. My tutorial proposal > >> was rejected and other deadline intefered with this conference date. > >> > >> Will the presentation be recorded? If not, can you make the slide > >> available? > >> > >> What is your opinion on this question: > >> > >> - Should other lib like NumPy/Theano/Cython/Numba base their elemwise > >> implemention (or part of it) on dynd or minivect? I know cython and > >> Numba do it, but it was before dynd and I don't know where dynd fit in > >> the big picture. Do dynd reuse minivect itself? > > > > > > Actually, I think the Cython branch with minivect support was in the end > not > > merged, due to lack of interest/manpower to maintain support for > > vectorization in the long term (so it was better to not add the feature > than > > have a badly supported feature). > > > > My understanding is that Numba is based on minivect and not on dynd, so > it's > > more of a competitor. > > > > Perhaps Mark Florisson will be able to comment. > > > > Dag Sverre > > Hey Dag, > > Indeed, numba uses it for its array expression support, but it will > likely remove the minivect dependency and generate a simple loop nest > for now. I'm working on pykit now > (https://github.com/ContinuumIO/pykit) which similarly to minivect > defines its own intermediate representation, with array expressions in > the form of map/reduce/scan/etc functions. The project has a broader > scope than minivect, to be used by projects like numba, what but a > "minivect baked in". > > As such, minivect isn't really maintained any longer, and I wouldn't > recommend anyone using the code at this point (just maybe some of the > ideas :)). > Hi, thanks for the information. I checked the repo rapidly and didn't found information on how to use it the way I expect to use it. I would like to be able to take a small Theano graph (like just elemwise operation) and make a graph in it to have it generate the c code. Do you have some tests/tests/doc that demonstrate something in that direction? Ideally I would like to be able to implement something like this simple example: (x ** 2).sum(1) or (x ** 2).sum() Is pykit or Numba IR ready for that? thanks Frédéric
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