Wheel versions

[msyriac]

Is there a reason that the glibc version was updated from 2.17 to 2.28 here?

ducc/.github/workflows/wheels_64bit_linux.yml

Line 23 in 2f969ac

CIBW_MANYLINUX_X86_64_IMAGE: manylinux_2_28

This makes wheels unavailable on systems using glibc 2.17, forcing one to compile from source.

[mreineck]

It's mostly the desire to have newer compilers (gcc 12 vs gcc 10) available, which have fewer bugs and can deliver better code. Also I plan to switch to C++20 at some point, which will require recent compilers. And since glibc 2.28 was released six years ago, I hoped to e on the safe side ...
Also please note that I strongly recommend compiling from source anyway, since that will typically give you a packages that runs twice as fast in many circumstances. The prebuilt wheels only assume SSE2 instructions to be present; when compiling from source, everything up to AVX512 will be used.

[msyriac]

Ok, good, I guess this is a question for my HPC admins, why they're running glibc from 6 years ago..

[mreineck]

Well, on HPC this is probably not so uncommon, if the basic OS is not replaced during the lifetime of the machine.
Still, on this kind of machine, using a custom-compiled package is even more important :-)

[msyriac]

Agreed!