icon/25.2: Use Python 3.11

[havogt]

No description provided.

[havogt]

cscs-ci run alps;system=santis;uarch=gh200;uenv=icon:25.2

[havogt]

cscs-ci run alps;system=santis;uarch=gh200;uenv=icon:25.2

[leclairm]

We still need cdo for validation. What would you like it removed?

[msimberg]

Would you mind adding:

Suggested change

	- nccl-tests
	- nccl-tests
	- aws-ofi-nccl

?

Version will likely be very old, but better than nothing as a start.

[leclairm]

cscs-ci run alps;system=santis;uarch=gh200;uenv=icon:25.2

[leclairm]

@havogt @msimberg Is this PR still a thing?

• If you need cdo removed, we'll need to create a different uenv, not remove it from icon/25.2.
• I don't see any issue for adding aws-ofi-nccl as long as the original libfabric is still picked by default when we build icon. Otherwise, same as for cdo, we need a new uenv.

[msimberg]

I can't speak for cdo, but for aws-ofi-nccl I can wait for a uenv based on spack 1 with newer package versions (and creating a new 25.2 with old versions of nccl etc. is not useful to me anymore).

[havogt]

cdo is only removed because installation is broken (I guess in main), but I don't want to spend time fixing it. Unrelated, I will try Python 3.13 and if that works would like to get a new uenv with that version as default for icon4py use-cases.

[havogt]

cscs-ci run alps;system=santis;uarch=gh200;uenv=icon:25.2

[havogt]

cscs-ci run alps;system=santis;uarch=gh200;uenv=icon:25.2