EJFAT Group Meeting Feb. 9, 2023

The meeting time is 11:00am Eastern/USA.

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161 182 8967

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Agenda:

1. Previous meeting

2. Announcements:
   1. NERSC-ESnet-JLab on-site workshop Jan 31 - Feb 1
   2. Final version of RT2022 EJFAT/IEEE-TNS submitted 02/07/2023
3. NERSC Test set-up:
   1. Data Source: JLAB, CLAS12, pre-event aggregated - 1 channel
   2. ESnet/JLab CP designs have diverged:

CP Designs

Item	JLab	ESnet
PID	resident in RE	resident in CP
Comms	RE pushes gRPC messages to CP	CP pulls gRPC messages from RE
Build	Carl's C++ simulated CP + Mike's C++ schedule density adjustment simulation + Stacey's C++ sn-p4-cli	GoLang server

1. 1. 1. JLab Design:
         1. PID resident in RE
         2. RE pushes gRPC messages to CP
         3. Proposed protobuf schema
         4. CP = Carl's C++ simulated CP + Mike's C++ schedule density adjustment simulation + Stacey's C++ sn-p4-cli
      2. ESnet Design:
         1. PID resident in CP
         2. CP pulls gRPC messages from RE
         3. Proposed protobuf schema
         4. CP = GoLang server
   2. Derek Howard (ESnet) to build CP for EJFAT and Perlmutter at NERSC with JLab assisting
      1. Week of 2/6: Other ESnet projects - mtg 4PM Thursday
      2. Week of 2/13:
         1. Finish mock API server
         2. create an internal representation of the load balancer calendar
         3. implement the algorithm specified in "EJFAT Load Balancer Schedule Density from Reassembly Engine PID control"
      3. Week of 2/20: Other ESnet projects
      4. Week of 2/27: Add integration for the SmartNIC P4 Controller, synchronizing the internal state of the gRPC server with the P4 tables.
      5. Week of 3/6: Other ESnet projects
      6. Week of 3/13: Start work on integration test tooling.
   3. Data Sink:
      1. Perlmutter
      2. ERSAP
2. ACAT2022 Paper due March 5, 2023
3. Resources:
   1. HPDF
   2. CP gRPC i/f to RE PID: Non-streaming / Peer-to-Peer (Note on gRPC Publish/Subscribe)
   3. CP PID signal -> LB Schedule Density transform (Draft C++ algorithm completed)
   4. Proposed Changes to RE Meta-Data
   5. CP gRPC i/f to LB (pending)
4. Status
5. AOT

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