EJFAT EPSCI Meeting May. 4, 2022

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The meeting time is 2:00pm.

Connection Info:

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Meeting URL
https://jlab-org.zoomgov.com/j/1612038101?pwd=Yk96QUcyT1NDVTRRUGNtOFVSSTdaUT09&from=addon

Meeting ID
161 203 8101

Passcode
378382

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Agenda:

  • Previous meeting
  • Situation:
    • Rec'd new f/w build 28 April
      • Specs
      • Restores Jumbo Frames
      • arp, ping - working
      • Port entropy field - working
    • Testing with End-to-end EJFAT ERSAP solution for data_id stream horizontal reassembly scaling (10 streams)
    • Using script based LB Control Plane
    • ERSAP feed end bottleneck needs investigation; Timmer's blaster may provide relief
    • EJFAT subnet VLAN 937 172.19.22.0/24
    • EJFAT loaner equip inventory:
      • (2) switches: ejfat-sw, daq-cc-f109-sw-1
      • (3) DAQ dev machines indra-s[1-3]
      • (4) DAQ Farm machines dafarm61 dafarm62 dafarm63 dafarm64 currently on 129.57.29.0/24 subnet w/ additional i/f available for EJFAT subnet
      • (17) Hall-D machines - gluon120-36
      • 10Gbs NICs
  • Pending:
    • Compute Equip.- ETA 1 June - sans 100Gbs NICs (ETA 1 July)
    • Networking Equip. - ETA 1 July 5 October
    • Support C libraries for LB Host Control Plane
    • ESnet smartnic open-source GitHub repo (April)
    • ESnet private, forkable Jlab P4 and simulations GitHub repo (April)
  • To Do:
    • Near Term:
      • Hall-B FT calorimeter and hodoscope streaming readout test - Pending OK from Sergey B.
        • May be able to use Abbott's indra-s1 setup
        • May be to use new VTP f/w with Hall-B VTP's - (Ben Raydo)
        • CODA 3.10 + ERSAP for new VTP f/w
        • CODA 2.0 for old VTP f/w
      • HOSS Hall-D EJFAT use case
        • parallelize writing of raw data files
        • distribute raw data across multiple compute nodes for calibration skims
        • 1 Gbs at hi-luminosity
        • Control Plane
          • Feedback from Compute hosts
          • Control Plane daemon for compute host
          • Demonstrate CP based flexibility/elasticity
        • Hall-D comms with DAQ 109 subnet require network customization; DAQ 29 subnet available
        • Slides
        • Netwok Diagram
    • Downstream:
  • AOT
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