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RNTuple Format and Feature Assessment

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774/1-079 (CERN)

774/1-079

CERN

20
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Live notes
RNTuple API Review sign-up sheet
RNTuple Format Specification v0.2
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Participation at the RNTuple-Experiments workshop
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  • Monday 6 November
    • 09:00 → 10:30
      RNTuple: State of Affairs 774/R-013

      774/R-013

      CERN

      104
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      Convener: Florine de Geus (CERN)
    • 11:00 → 12:30
      RNTuple: State of Affairs: RNTuple Status in Experiments 774/1-079

      774/1-079

      CERN

      20
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      Convener: Jakob Blomer (CERN)
    • 14:00 → 15:00
      RNTuple: State of Affairs: RNTuple Status in Experiments 774/1-079

      774/1-079

      CERN

      20
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      Convener: Dr Vincenzo Eduardo Padulano (CERN)
      • 14:00
        Use of TTree and plans for RNTuple in DUNE 20m
        Speakers: Dr Michael Hudson Kirby (Fermi National Accelerator Lab. (US)), Michael Kirby (Fermi National Accelerator Laboratory)
        DUNE_RNTuple_discussion_and_feedback_6Nov2023.pdf
      • 14:20
        (First look at) Metadata for RNTuple and ATLAS use-case 15m
        Speaker: Maciej Pawel Szymanski (Argonne National Laboratory (US))
        2023_11_06_Szymanski_RNTuple-4.pdf
      • 14:35
        Infrastructure needed for production workflows 15m
        Speaker: Alaettin Serhan Mete (Argonne National Laboratory (US))
        ATLAS_Mete.pdf
    • 15:30 → 17:30
      RNTuple Feature and Format Assessment 774/1-079

      774/1-079

      CERN

      20
      Show room on map

      Discussion topics

      • Agreement on the feature set and the development timeline esp. which features need to be ready by end of 2024
      • Experiment liaison persons to provide us one or a few experiment tasks that we should use for the large-scale validation (in addition to the Analysis Grand Challenge).
      • Terms of the interface review planned to be conducted by CCE
      • Meta-data support
      • I/O for SOA data structures.
      • Review of the use of low-precision floats (Float16_t etc): are the ROOT provided mechanisms matching experiments needs
      • Support for object stores, esp. DAOS

      Feature mismatch between TTree and RNTuple:

      • Dynamic polymorphism
      • Raw pointers and networks thereof
      • TRef
      • TTree::Draw
      Convener: Peter Van Gemmeren (Argonne National Laboratory (US))
      • 15:30
        Introduction what is CCE and what are the plans for CCE2 20m
        Speaker: Peter Van Gemmeren (Argonne National Laboratory (US))
        HEP-CCE2/SOP Indico Agenda
        HEP-CCE Home
        HEP-CCE_IOS for ROOT_RNTuple.pdf
      • 16:00
        Kick Off: Mandate CCE for the interface review 20m
        Speakers: Jakob Blomer (CERN), Peter Van Gemmeren (Argonne National Laboratory (US)), Philippe Canal (Fermi National Accelerator Lab. (US))
        RNTuple Interface Review.pdf
      • 16:30
        Discussion: Key Questions, Experiment Liaison 20m

        1) What do the experiments expect to see / get done in ROOT in order to entrust their data to RNTuple?
        2) What is the experiment schedule for the RNTuple deployment once RNTuple 1.0 is there?
        3) To what degree is ROOT supporting TTree writing after RNTuple is deployed?

        Identify experiment liaison persons to provide us one or a few experiment tasks that we should use for the large-scale validation (in addition to the Analysis Grand Challenge).

        Speakers: Jakob Blomer (CERN), Peter Van Gemmeren (Argonne National Laboratory (US)), Philippe Canal (Fermi National Accelerator Lab. (US))
    • 19:30 → 22:00
      Dinner

      Cheese fondue at Auberge de Satigny

  • Tuesday 7 November
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