Name: RNTuple Format and Feature Assessment
Start: 2023-11-06T09:00:00+01:00
End: 2023-11-07T19:00:00+01:00
Location: CERN

Monday, 6 November
- Mon, 6 Nov
- Tue, 7 Nov
- RNTuple: State of Affairs 774/R-013
  
  774/R-013
  
  CERN
  
  104
  Show room on map
  
  Convener: Florine de Geus (CERN)
  - 1
    
    Workshop Introduction
    
    RNTuple Feature and Format Assessment Workshop Introduction.pdf
  - 2
    
    RNTuple: Status and Plans
    
    Speakers: Florine de Geus (CERN), Jakob Blomer (CERN), Dr Vincenzo Eduardo Padulano (CERN)
    
    RNTuple Status and Plans.pdf
  - 3
    
    Discussion
- RNTuple: State of Affairs: RNTuple Status in Experiments 774/1-079
  
  774/1-079
  
  CERN
  
  20
  Show room on map
  
  Convener: Jakob Blomer (CERN)
  - 4
    
    RNTuple in CMS
    
    Speaker: Matti Kortelainen (Fermi National Accelerator Lab. (US))
    
    20231106-RNTupleWorkshop_CMS.pdf
  - 5
    
    ATLAS Data Model Support
    
    Speaker: Marcin Jerzy Nowak (Brookhaven National Laboratory (US))
    
    ATLAS EDM & RNTuple.pdf
  - 6
    
    RNTuple in LHCb
    
    Speaker: Marco Clemencic (CERN)
    
    RNTuple_in_LHCb__Feeback_Workshop_.pdf
  - 7
    
    ALICE Input and Needs
    
    Speaker: Giulio Eulisse (CERN)
    
    ALICE Feedback on RNTuple.pdf
- RNTuple: State of Affairs: RNTuple Status in Experiments 774/1-079
  
  774/1-079
  
  CERN
  
  20
  Show room on map
  
  Convener: Dr Vincenzo Eduardo Padulano (CERN)
  - 8
    
    Use of TTree and plans for RNTuple in DUNE
    
    Speakers: Dr Michael Hudson Kirby (Fermi National Accelerator Lab. (US)), Michael Kirby (Fermi National Accelerator Laboratory)
    
    DUNE_RNTuple_discussion_and_feedback_6Nov2023.pdf
  - 9
    
    (First look at) Metadata for RNTuple and ATLAS use-case
    
    Speaker: Maciej Pawel Szymanski (Argonne National Laboratory (US))
    
    2023_11_06_Szymanski_RNTuple-4.pdf
  - 10
    
    Infrastructure needed for production workflows
    
    Speaker: Alaettin Serhan Mete (Argonne National Laboratory (US))
    
    ATLAS_Mete.pdf
- 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))
  - 11
    
    Introduction what is CCE and what are the plans for CCE2
    
    Speaker: Peter Van Gemmeren (Argonne National Laboratory (US))
    
    HEP-CCE2/SOP Indico Agenda
    
    HEP-CCE Home
    
    HEP-CCE_IOS for ROOT_RNTuple.pdf
  - 12
    
    Kick Off: Mandate CCE for the interface review
    
    Speakers: Jakob Blomer (CERN), Peter Van Gemmeren (Argonne National Laboratory (US)), Philippe Canal (Fermi National Accelerator Lab. (US))
    
    RNTuple Interface Review.pdf
  - 13
    
    Discussion: Key Questions, Experiment Liaison
    
    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))
- Dinner
  
  Cheese fondue at Auberge de Satigny
Tuesday, 7 November
- Mon, 6 Nov
- Tue, 7 Nov
- RNTuple Development Schedule 774/1-079
  
  774/1-079
  
  CERN
  
  20
  Show room on map
  
  Convener: Philippe Canal (Fermi National Accelerator Lab. (US))
  - 14
    
    Initial work with RNTuple and SoA
    
    Speaker: Amit Bashyal
    
    SoA-RNTuple-Workshop.pdf
  - 15
    
    SoA
    
    Speaker: Dr Andrea Bocci (CERN)
    
    A deeper look at SoA in CMSSW.pdf
  - 16
    
    RNTuple and DAOS, CCE plans
    
    Speaker: Rob Ross (Argonne National Laboratory)
    
    ross-rntuple-workshop-20231107.pdf
  - 17
    
    Discussion
    
    RNTuple Feedback Summary.pdf

RNTuple Format and Feature Assessment

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