EJFAT EPSCI Meeting Apr. 13, 2022

From epsciwiki
Jump to navigation Jump to search

The meeting time is 2:00pm.

Connection Info:

You can connect using ZoomGov Video conferencing (ID: 161 203 8101). (Click "Expand" to the right for details -->): 

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

Meeting ID
161 203 8101

Passcode
378382

Want to dial in from a phone?

Dial one of the following numbers:
US: +1 669 254 5252 or +1 646 828 7666 or +1 551 285 1373 or +1 669 216 1590 or 833 568 8864 (Toll Free)

Enter the meeting ID and passcode followed by #

Connecting from a room system?
Dial: bjn.vc or 199.48.152.152 and enter your meeting ID & passcode

Agenda:

  • Previous meeting
  • Situation:
    • Testing with End-to-end EJFAT ERSAP solution on FPGA LB
    • Jumbo Frames - indra-s2,s3, alkaid, fpga
    • Linux IP stack buffer size increased
    • Using script based LB Control Plane
    • Control Plane Gratuitous Arp cache updating (Scapy)
    • Benchmarking
    • Successfully Testing Calendar Epoch Advances
    • RT2022 - April 08 submission - August 01-05 Conference
    • ERSAP feed end bottleneck needs investigation; Timmer's blaster may provide relief
    • EJFAT subnet
      • VLAN 937 172.19.22.0/24
      • 10Gbs NIC, but need cables (copper twinX will do)
    • DAQ Farm machines dafarm61 dafarm62 dafarm63 dafarm64 currently on 129.57.29.0/24 subnet w/ additional i/f available for EJFAT subnet
    • Testing newly received FPGA load
      • Support for arp, and ping
      • Support for the port entropy field (Data_id <-> reassembly port mapping for powers-of-two ports per host)
    • Peter Nugent/LBNL: LDRD LBNL+JLAB combines JLAB streaming + LBNL compute
  • Pending:
    • Compute Equip.- ETA 1 June - currently on track
    • Networking Equip. - ETA 1 July
    • 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 (scheduled for week of 04/10 or 04/17)
        • 2 crates for FT calorimeter, furnished with fADC250s. Total 332 channels.
        • 1 crate for the hodoscope that has 12 fADC (total 192 channels)
        • Update firmware on all 3 VTPs to send fADC aggregated data frames in the EVIO format, through UDP.
        • Design ERSAP FE application containing an actor that receives VTP frames through UDP, extracts information about the source/data ID and frame number (tick), and sends it to the EJFAT packetizing engine.
        • Stage 1 testing: single stream/data-ID
          • EJFAT LB + reassembly (RA) engine overall performance data-rate dependence.
          • EJFAT LB + RA engine performance dependence from the EJFAT packetizing engine MTU settings
        • Stage 2 testing: multi-stream/data_ID
          • Use EJFAT LB firmware that supports load balancing of multiple source/data_IDs.
          • EJFAT LB + RA engine performance as an event builder (i.e. source ID aggregator), a capability to send all available data_ID's with the same tick (time frame) to a single destination. NB Hall-B FT calorimeter and hodoscope setup is capable of sending up to 12 data streams.
      • C-based control plane
        • Feedback from Compute hosts design
        • Control Plane daemon for compute host
    • Downstream:
  • AOT
Retrieved from "https://wiki.jlab.org/epsciwiki/index.php?title=EJFAT_EPSCI_Meeting_Apr._13,_2022&oldid=1714"