EPSCI SRO Meeting May. 17, 2021

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The meeting time is 2:00pm.

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Agenda:

1. Previous Meeting
2. Announcements
3. ERSAP development
   • INDRA VTP setup
   • INDRA SAMPA setup
     • INDRA-ASTRA - meeting June 9 @ 2pm (bluejeans)
4. VTP Data Format
5. CLAS12 TriDAS & ERSAP - vCHEP talk Wed. @ 11:53 (zoom (must be registered))
6. AOT

Useful References

• SRO Meetings
• CLAS12 SRO page
• ERSAP Document
• Vardan's WMS draft
• Vardan's SRO sketch
• Graham's Paper describing SRO
• Dave Abbott's slides on data format

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Minutes:

Attendees: Mike G., David A., Carl T., Jie C., Vardan G

• INDRA lab
  • VTP
    • FPGA TCP stack being improved, however the current firmware has a limited control over TCP/IP configuration.
    • For the resource utilization studies software stream-source was used (contains real hardware payloads).
  • SAMPA
    • Ed sent Vardan detailed instructions how to operate the SAMPA setup.
    • Vardan started the readout and recorded data from 5 front-end cards in 10 separate files (2 stream per card).
• Data Lake
  • The problem reported while increasing the depth of the data lake. Chris is working on it.
• Data format
  • David described the EVIO based streaming data format.
  • EVIO-6 data format was proposed to use as a streaming data format, while safely ignoring the "index array" and the "user header" sections of the data-format.
  • Carl will setup a meting with Hall-B to discuss if the suggested change will affect them ( note that Hall-B is not yet switched using the EVIO-6 as their off-line data format).