Support for macOS

[Jacobfaib]

Is there any plans for supporting macOS?

I don't see any published packages on e.g. homebrew, and attempting to build from source chokes on https://github.com/openucx/ucc/blob/master/config/m4/sysdep.m4#L15-L16 among other things.

The first (finding librt) is superfluous, IIRC the realtime libraries are bundled with the compiler/os runtime libraries on macOS by default, whilst timer_create seems to need custom stubs (macOS seemingly has its own timer API that is ever so slightly different -- but not entirely incompatible).

[Sergei-Lebedev]

There are no plans to support MacOS. But imo the first thing to do in this direction is to make sure that UCX can be built on MacOS since libucs is a dependency of UCC. There were several attempts (for instance here openucx/ucx#334) but as far as I know they weren't finished.