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Example of two-level batching event builder (BEB) in the FEB and KCU:

FEB segment a batch"a" event-build for event 1 with two detector segments a,b and a timestamp t1: t1,d1a,d1b event-built into "f1a"
FEB segment b batch"b" event-build for event 1 with two detector segments c,d and a timestamp t1: t1,d1c,d1d event-built into "f1b"

KCU batch event-build for event 1: f1a,f1b (static size for HR, UHR, but variable for sparkPIX).  Note that this is a partial event-build because other detector segments will be connected to other KCUs.  Existing LCLS software does that high-level event-build.

Note: will always get a packet from sparkpix from empty payload

July 1, 2024

• we think gpu can write to kcu, but Jeremy will try to confirm that this is really the case.  we think kcu to gpu is broken.
• Mudit will work on TDet firmware
• Jeremy and TID will use rdsrv419
• LCLS should find another machine where we can control the root-complex topology better.  lab3 daq-tst-dev06?
  • could be that the CPU datadev driver is incompatible with the GPU datadev driver
  • should probably find a different machine.  a fee-alcove machine?
• chris and gabriel on vacation July 6-20
• Jeremy unavailable July 8-10