EPSCI Group Meeting Aug. 3, 2020

The meeting time is 10:00am.

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253 300 597

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Agenda:

1. Previous meeting
2. Announcements
   • Beam delivery for physics starting now
     • David on shift 8/18, 8/19, 8/28, 8/29, 9/11, 9/12
     • Thomas on shift 7/29, 7/30, 8/20, 8/21, 8/30, 8/31, 9/9, 9/10
   • Streaming Data Scientist job posting (almost..?)
3. Graham's Project
4. GUI for Calorimeter calibration scripts (Hall-D Request)
5. Ongoing Activities
   • Offsite Computing
     • NERSC, PSC
     • OSG
   • JLab Common Environment (CE) + SPACK
   • EVIO-6
   • A.I.
     • ENP + CST Meeting week of 8/24 projects list
     • GlueX-EIC-PANDA ML workshop Sep. 21-25
   • JANA2
     • GlueX port
     • A.I. support
     • ESCalate in SoLID
   • SRO
     • EIC SRO Meeting today @11:00
     • NO EPSCI SRO Meeting this week
     • ERSAP
     • Hall-B/D TriDAS
6. Publications
   • Fortnight Papers
7. AOT

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Minutes:

Attendees: David L.(chair), Carl T., Nathan B., Thomas B., Vardan G., Kishan R.

Announcements

• Bluejeans now has virtual backgrounds

GUI For Calorimeter Calibration System in Hall-D

• Thomas working on at request from Igal
• Front end done
• Gave 1 year time scale
• Some evidence Igal's workflow is heavily burdening hallddb.jlab.org

NERSC

• Processing of GlueX Spring 2020 dataset has started
• Job throughput is very modest
• May need to consider bundling jobs
• Perlmutter will change situation dramatically in 1 year. (how much to invest?)

OSG

• Multiple distribution technologies
  • cvmfs oasis - useful for code distributions - using both JLab VO and GlueX VO
  • stash cache - useful for larger files (e.g. random triggers) that could be used at multiple sites - federated storage that relies on xrootd
  • xrootd - used for transporting data (e.g. raw data)
• Running OSG jobs onJLab SciComp farm
  • head node is being stood up now
  • still 1 month or so away from functioning
• Collector at JLab still not fully functional due to network issues
  • UCSD still in use as primary for the moment

SPACK

• Space on JLab CUE is being set up
• Web server is process of being set up. (Sherman now in charge of web servers)
• JLab CE replacement still about 1 month out. Oct. may be more realistic

EVIO-6

• Full C++ port of Java code is complete
• Testing phase has started

A.I.

• Hydra deployed in Hall-D with live web interface

SRO

• ERSAP Prototype
  • Multi-threaded I/O services working
  • Demo 10GB/s from 12 simulated streams through data lake (all on same node so no network hardware involved yet)
  • Redis data lake issue resolved by reconfiguring to use multiple threads
  • Vardan will report at EIC meeting immediately following this one

JANA2

• GlueX Port
  • Merged numerous changes required of JANA2 into master
  • Working on test cases
• Documentation
  • Investigated using ReadTheDocs. Breathe is tool that can help convert existing DOxygen documentation to ReadTheDocs (Sphinx) format.
• A.I. support
  • Considering OpenCV over Tensorflow for C++ interface
  • Issues calling python interpreter from JFactory
    • Python interface is one option for inferring on GPU from JANA
    • GIL may be related to the issue