[Numpy-discussion] manylinux upgrade for numpy wheels

[Nathaniel Smith]

Pretty sure the 2010 and 2014 images both have much newer compilers than
that.

There are still a lot of users on CentOS 6, so I'd still stick to 2010 for
now on x86_64 at least. We could potentially start adding 2014 wheels for
the other platforms where we currently don't ship wheels – gotta be better
than nothing, right?

There probably still is some tail of end users whose pip is too old to know
about 2010 wheels. I don't know how big that tail is. If we wanted to be
really careful, we could ship both manylinux1 and manylinux2010 wheels for
a bit – pip will automatically pick the latest one it recognizes – and see
what the download numbers look like.

On Tue, Feb 4, 2020, 13:18 Charles R Harris <charlesr.harris at gmail.com>
wrote:

> Hi All,
>
> Thought now would be a good time to decide on upgrading manylinux for the
> 1.19 release so that we can make sure that everything works as expected.
> The choices are
>
> manylinux1 <https://www.python.org/dev/peps/pep-0513/> -- CentOS 5,
> currently used, gcc 4.2 (in practice 4.5), only supports i686, x86_64.
> manylinux2010 <https://www.python.org/dev/peps/pep-0571/> -- CentOS 6,
> gcc 4.5, only supports i686, x86_64.
> manylinux2014 <https://www.python.org/dev/peps/pep-0599/> -- CentOS 7,
> gcc 4.8, supports many more architectures.
>
> The main advantage of manylinux2014 is that it supports many new
> architectures, some of which we are already testing against. The main
> disadvantage is that it requires pip >= 19.x, which may not be much of a
> problem 4 months from now but will undoubtedly cause some installation
> problems. Unfortunately, the compiler remains archaic, but folks interested
> in performance should be using a performance oriented distribution or
> compiling for their native architecture.
>
> Chuck
>
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