08/19/2014 Notes

DocDB Event


Pengfei, Matthew, Zukai, Alec, Craig G., Yuri, and Martin (taking notes)


  • The shutdown will indeed start on Friday 9/5 and go through October.
  • Yuri and I will be out on vacation most of September.
  • Before we can test the new DDT features, some DAQ work needs to happen first to get multipoint in.
  • I will bring this up at the next DAQ meeting to see what Peter's plan is.

Global Trigger

  • Alec has been working on GT.
  • Once he has something ready to test, we'll try it out on NDOS, so that it is ready for FD once the shutdown starts.
  • How to record throttled events?
    • Andrew's preference would be the DAQ status block.
    • In the meantime, we could record this information in the prescale field.
  • Throttles need to be configurable:
    • Alec will update the GT XSD file to show what new variables he wants.
    • I will then implement these fields downstream in the DAQ configuration.
  • Different throttle levels:
    • We will be able to throttle by each trigger (e.g. DDT NuMu).
    • We will be able to throttle by each trigger group (e.g. DDT).
    • Andrew and Alec will next work on an overall global trigger throttle as a fail-safe for the whole GT system.
  • There will now be trigger subtypes that various triggers.
  • There has also been progress on the SNEWS trigger and it would be nice to get Jan back on it, but (un)fortunately he is enjoying Scotland for another 3 weeks.

Fast Monopole Trigger

  • Zukai showed his linked tech note and Andrew requested a xz/yz distribution of the events that fail the cuts.