EJFAT EPSCI Meeting May. 11, 2022

The meeting time is 2:00pm.

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161 203 8101

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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 - Passed Test for data_id stream horizontal reassembly with 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 equip inventory:
    • Loaners:
      • (2) switches: ejfat-sw, daq-cc-f109-sw-1
      • (3) DAQ dev machines indra-s[1-3] 129.57.29/109.23[0-2]
      • (4) DAQ Farm machines dafarm6[1-4] currently on 129.57.29.17[1-4]
      • (17) Hall-D machines - gluon120-36 129.57.172.1[20-36]
      • 10Gbs NICs
    • On Order:
      • Compute Equip.- ETA 1 June - sans 100Gbs NICs (ETA 1 July)
      • Networking Equip. - ETA 1 July 5 October
  • LAN Speed Tests (iperf3 to indra-s2)
    • indra-s3 - 30 Gbs
    • indra-s1 - 20 Gbs
    • alkaid - 17 Gbs
    • indra-s2 - 10 Gbs
• Pending:
  • Support C libraries for LB Host Control Plane - in unit test
  • ESnet smartnic open-source GitHub repo (May)
  • ESnet private, forkable Jlab P4 and simulations GitHub repo (May)
• To Do:
  • Near Term (May):
    • 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 able 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
      • Diagram
  • Downstream:
    • HOSS - June 1
      • parallelize writing of raw data files
      • distribute raw data across multiple compute nodes for calibration skims
      • 1 Gbs at hi-luminosity
      • Control Plane
        • Will interact with SLURM
        • Python based (?)
        • 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
      • Hall-D EJFAT use case
      • Hall-D EJFAT Network Diagram
    • DPDK
    • IPV6 testing
    • RT2022 - August 01-05 Conference
• AOT

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