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Timetable: HEP-CCE: Scalable IO for Energy and Intensity Frontier Experiments

1404, 1405, 1406 & 1407 (Argonne - Bldg 240)

1404, 1405, 1406 & 1407

Argonne - Bldg 240

9700 Cass Ave, Lemont, IL 60439
Peter Van Gemmeren (Argonne National Laboratory), Philippe Canal (Fermilab), Samantha Tezak (Argonne National Lab), Taylor Childers (Argonne National Laboratory)
High Energy Physics experiments continue to become more data and simulation intensive. There is an expected factor of ten gap (or more) between projected computing needs for HL-LHC experiments and projected growth of current HEP resources. In the US, High Performance Computing resources are going to be growing by more than an order of magnitude by 2021/2022 with the deployment of the US DOE's first exascale supercomputers. These resources are already becoming an important piece of the HEP computing landscape and will continue to become more important.

One challenge of using leadership computing resources is reading and writing data in scalable ways that does not lead to bottlenecks or performance penalties on the shared filesystems. This Workshop aims to bring together leading IO experts in the HEP field with experts from DOE ASCR Facilities to discuss how to move forward in the next years to make HEP software more friendly to millions of parallel threads accessing files on shared disks.
Google Doc
  • Thursday, 23 August
    • 9:00 AM 10:30 AM
      Thursday Morning Intro

      Introduction to HPC IO & HEP IO

      Conveners: Mr Philippe Canal (FERMILAB), Dr Taylor Childers (Argonne National Laboratory)
      • 9:00 AM
        Brief Introduction to HPC IO 45m
        Speaker: Richard Zamora (Argonne)
      • 9:45 AM
        Intro to ROOT IO 45m
        Speaker: Mr Philippe Canal (FERMILAB)
    • 10:30 AM 11:00 AM
      Coffee Break 30m
    • 11:00 AM 2:00 PM
      Thursday Afternoon Intro
      Conveners: Mr Philippe Canal (FERMILAB), Dr Taylor Childers (Argonne National Laboratory)
      • 11:00 AM
        CMS IO Overview 40m
        Speakers: Brian Bockelman, Dr Christopher Jones (Fermilab)
      • 11:40 AM
        ATLAS IO Overview 40m
        Speaker: Dr Peter van Gemmeren (ANL)
      • 12:20 PM
        NERSC Overview 30m
        Speaker: Glen Lockwood (NERSC)
      • 12:50 PM
        OLCF Overview 30m
        Speaker: Sarp Oral (Oak Ridge)
      • 1:20 PM
        ALCF Overview 30m
        Speaker: Kevin Harms (Argonne)
    • 12:20 PM 12:50 PM
      Working Lunch 30m
    • 2:00 PM 2:30 PM
      Coffee Break 30m
    • 2:30 PM 6:00 PM
      Thursday Evening Discussion
      • 2:30 PM
        Overview of HEP Activities in IO 30m
        Speaker: Jim Kowalkowski (Fermilab)
      • 3:00 PM
        HEP/HPC Tech Discussion 1h
        Discuss pros/cons of ROOT format vs HDF5 (others?). What's the future of Object Stores? Any IO tech in the pipeline to be aware of?
        Speakers: Mr Philippe Canal (FERMILAB), Dr Taylor Childers (Argonne National Laboratory)
    • 6:45 PM 8:00 PM

      We have a reservation for 15 at The Craftsman in Naperville. Please fill out the doodle sent via email if you intend to attend.

    • 8:00 AM 10:30 AM
      Friday Morning Discussion
      • 8:00 AM
        Object Stores 1h
        Quick introduction to Object Stores which the facilities indicate will be the leading scalable IO tool for the next ten years of Exascale.
        Speaker: Glen Lockwood
      • 9:00 AM
        HEP Transient Object Store 1h 30m
        Deeper dive into R&D being done in HEP related to Object Stores. How can these solutions be generalized? How can LHC experiments utilized Object Stores to enable large scale IO on HPCs?
        Speaker: Rob Ross (Argonne)
    • 10:30 AM 11:00 AM
      Coffee Break 30m
    • 11:00 AM 2:00 PM
      Friday Afternoon Discussion
      • 11:00 AM
        Compression 1h
        This session will be focused on how compression impacts scalable IO in HEP experiments. Most experiments store their data using compression. Can we utilize non-CPU resources to do this? What would the impact be on uncompressing on CPUs if compressed on GPUs? What tools can we use? ROOT? ZLIB?
        Speakers: Brian Bockelman, David Blythe (Argonne), Dr Peter van Gemmeren (ANL)
      • 12:00 PM
        Future Directions, Proposals, Action Items. 1h 55m
        What action items have we identified. What joint projects can be tackled to prepare for Exascale use? ROOT IO? Object Stores?
      • 12:00 PM
        Working Lunch 30m

        Boxed lunches will be handed out during the last 30 minutes of Peter and Brian's discussion.