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From Tianqi Chen <tqc...@cs.washington.edu>
Subject Re: MXNet C++ package improvements
Date Fri, 23 Mar 2018 19:11:42 GMT
+1 for hour-glass CAPI design. It is there for very good reason. For
example, if you are windows user an want to build your app using mingw,
current way works. While the raw c++ approach won’t due to the fact cuda is
only supported by MSVC.

The argument that c++ api itself is more elegant and fast is not
necessarily valid. Always remember Amdahl’s Law, the additional overhead
saved by directly using are not the bottleneck.

The effectiveness of core engine, on the other hand will be on the critical
path, and we rely on constantly improving this which can mean break
backward compatibility if C++ api layer is exposed

Tianqi


On Fri, Mar 23, 2018 at 11:45 AM Eric Xie <jxie@apache.org> wrote:

> I see several issues with the design. I've commented in the document but
> for record here:
>
> 1. cpp-package is almost only used for inference. since you are planning a
> rewrite that's almost certainly non-backward-compatible, we might as well
> create a new interface that's inference only.
>
> 2. The hour-glass CAPI design should be kept.
>
> On 2018/03/14 18:07:49, Anton Chernov <mechernov@gmail.com> wrote:
> > Dear MxNet Community,
> >
> > please find here
> > <
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=75976112>
> the
> > design document for the proposed MXNet C++ package improvements for
> review
> > and consideration.
> >
> > Feedback is welcome and highly appreciated. Thank you!
> >
> > BR
> > Anton
> >
>

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