On Sun, Jan 16, 2022 at 9:16 AM Sandro Tosi <sandro.t...@gmail.com> wrote:

> Hello,
> i'm preparing 1.22.1 for inclusion in Debian, and noticed how the new
> numpy has a git submodule to include numpy/SVML in its source tree.
>
> We are basing the debian package on the github tarball, and that does
> not include any submodule, so i'm wondering how important it is to
> have the SVML files around when building the packages.
>

Not using SVML means you're throwing away performance for your users, and
using a non untested config on 64-bit Linux. The latter isn't going to be a
problem in practice, since SVML was recently introduced. But I'd prefer for
Debian to include it.

You are using the wrong tarball I believe. I just checked
numpy-1.22.1.tar.gz
<https://github.com/numpy/numpy/releases/download/v1.22.1/numpy-1.22.1.tar.gz>
from our GitHub Releases page, and it does include SVML (at
numpy/core/src/umath/svml). If you instead grabbed the
autogenerated-by-github "Source code" tarball, that is the wrong one. We'd
delete it if we could, but unfortunately that is not possible.



> Given it's not immediately possible to include an external set of
> files, i'm just trying to balance the effort to inject them and their
> usefulness.
>
> At the same time, i'm wondering if
> https://github.com/numpy/numpy/pull/20695 (the PR that introduced
> NPY_DISABLE_SVML, also probably
> https://github.com/numpy/numpy/pull/20741 for the doc) should be
> backported to the 1.22.x branch, so that we can start using it in the
> release that introduced that feature.
>

I followed up on this on the PR. Thanks for pointing out this issue.

Cheers,
Ralf


>
> Thanks,
> --
> Sandro "morph" Tosi
> My website: http://sandrotosi.me/
> Me at Debian: http://wiki.debian.org/SandroTosi
> Twitter: https://twitter.com/sandrotosi
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