Difference between revisions of "EJFAT Group Meeting Apr. 28, 2022"

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** Near Term:
 
** Near Term:
 
*** Hall-B FT calorimeter and hodoscope streaming readout test - Pending OK from Sergey B.
 
*** Hall-B FT calorimeter and hodoscope streaming readout test - Pending OK from Sergey B.
**** 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. 
 
 
**** May be able to use Abbott's indra-s1 setup
 
**** 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)
 
**** May be to use new VTP f/w with  Hall-B VTP's - (Ben Raydo)
**** CODA 3.10 + ERSAP
+
**** CODA 3.10 + ERSAP for new VTP f/w
*** Control Plane
+
**** CODA 2.0 for old VTP f/w
**** Feedback from Compute hosts
+
*** [https://www.epj-conferences.org/articles/epjconf/abs/2021/05/epjconf_chep2021_04005/epjconf_chep2021_04005.html HOSS Hall-D EJFAT  use case]
**** Control Plane daemon for compute host
+
**** parallelize writing of raw data files
**** [https://www.epj-conferences.org/articles/epjconf/abs/2021/05/epjconf_chep2021_04005/epjconf_chep2021_04005.html HOSS Hall-D EJFAT  use case]
+
**** distribute raw data across multiple compute nodes for calibration skims
***** parallelize writing of raw data files
+
**** 1 Gbs at hi-luminosity
***** distribute raw data across multiple compute nodes for calibration skims
+
**** Control Plane
***** 1 Gbs at hi-luminosity
+
***** Feedback from Compute hosts
 +
***** Control Plane daemon for compute host
 
***** Demonstrate CP based flexibility/elasticity
 
***** Demonstrate CP based flexibility/elasticity
***** Hall-D comms with DAQ 109 subnet require network customization; DAQ 29 subnet available
+
**** Hall-D comms with DAQ 109 subnet require network customization; DAQ 29 subnet available
***** [https://docs.google.com/presentation/d/1m3rFm-1GymYv8zGimlAjL1NmWtXVfyIQdGzhx_j_BKE/edit?usp=sharing Slides]
+
**** [https://docs.google.com/presentation/d/1m3rFm-1GymYv8zGimlAjL1NmWtXVfyIQdGzhx_j_BKE/edit?usp=sharing Slides]
***** [https://jeffersonlab-my.sharepoint.com/personal/bmorris_jlab_org/Documents/Microsoft%20Teams%20Chat%20Files/JLab%20Network%20-%20HallD-to-EJFAT.png Netwok Diagram]
+
**** [https://jeffersonlab-my.sharepoint.com/personal/bmorris_jlab_org/Documents/Microsoft%20Teams%20Chat%20Files/JLab%20Network%20-%20HallD-to-EJFAT.png Netwok Diagram]
 
** Downstream:
 
** Downstream:
 
*** [http://www.dpdk.org DPDK]
 
*** [http://www.dpdk.org DPDK]

Revision as of 14:37, 28 April 2022

The meeting time is 11:00am.

Connection Info:

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Meeting URL
 https://jlab-org.zoomgov.com/j/1610125238?pwd=QnEvcjV6VFFndWZsQW15SmJKU0RJZz09&from=addon

Meeting ID
161 012 5238

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503371

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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
    • 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
      • Specs
      • arp, ping - working
      • Issues:
        • Port entropy field - currently broken, update pending
        • MTU size restricted to max 1500, update pending
        • Possibly incorrect control message responses being investigated
      • Rec'd new f/w build 28 April
  • 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

Minutes: