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    ROOT Project Meeting

    → Europe/Zurich
    32/1-A24 (CERN)

    32/1-A24

    CERN

    40
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    Danilo Piparo (CERN), Jakob Blomer (CERN)
    PoW Status
    Status Report Document
    Vision for ROOT7
    ROOT Team Meeting
    Zoom Meeting ID
    63815034196
    Host
    Danilo Piparo
    Alternative host
    Philippe Canal
    Useful links
    Join via phone
    Zoom URL
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    Shift handover: Lukas -> Stephan
    - Notable issues of git cloning, we've seen this on macos, then also on alma, the fix would be to have a github token to authenticate all git clone requests
        - Danilo: we currently do up to 4 clones per job, a mitigation could be to reduce the number of clones, maybe to 2
        - Staphan: has a PR to try something in this diretion

    News
    - We're at -20% in our issues backlog, at the upper limit of what was promised to the LHCC


    Meeting summaries
    - IO: investigating the CMS RNTuple use-cases that uses a lot of memory, ATLAS came with a similar issue but we identified it wasn't related to the same cause, we also concluded that we needed a backport of performance improvements so we will be carrying a patch to LLVM untill we migrate to LLVM 23
    - Python bindings: CppJIT is now released on PyPI, next is to sync the ROOT migration branch on the CppJIT released code, the branch is currently green but has a lot of patches that we are currently trying to reduce


    Proposals
    - Danilo: Having another development release next november supported until June
        - Stephan: I have a problem with the motivation being "one additional stop for deprecations", if this makes the jump to ROOT7 then I'm against, otherwise I'm for it
        - Danilo: indeed this shouldn't be used as an opportunity to stuff more things
        - many people: maybe it could be named root7 rc1 instead?
        - JR: maybe not because we can't do bug fixes only for 6 months
        - Philippe: we may end up having to do the last 6 release around the same time as 7
        - Danilo: let's wrap up, we don't decide today, we still have some days to consult experiments and make a final decision
        - Philippe: just to reinforce my POV, I don't see why not release 6.46, I think this would break expectations and make the jump to ROOT7 higher for experiments
        - Stephan: but experiments only jump from long term to long term anyway so they won't switch to 6.46 anyway, this would hoever be a good way to keep things flowing

    Liaisons
    - NTR


    Round table
    - Serguey: struggling with a functionality i call interactivity in the canvas

    There are minutes attached to this event. Show them.
      • 16:00 → 16:01
        Find notetaker 1m
      • 16:01 → 16:05
        News 4m
      • 16:05 → 16:10
        Shift Handover 5m

        Lukas --> Stephan

      • 16:10 → 16:15
        Meeting Summaries and Plans 5m

        ROOT Meetings:
        - I/O
        - Statistical Analysis Software
        - PPP
        - Python-C++ Bindings Meeting
        - Planning / Stakeholders

        Related meetings:
        - LIM

      • 16:15 → 16:45
        Topics 30m
        • Liaisons' Reports
      • 16:45 → 17:00
        Round table 15m