2016-09-20-SwC¶

Software & Computing Issues¶

Software & Computing Issues:

• Software
  • Tracker:
    • Charge reconstruction bug: fixed, in MAUS release 2.6.0
    • NaN bug: bug identified, fix is not yet in MAUS
  • TOF:
    • Discrepancy between TOF & tracker of ~100 ps: Scott Wilbur starting to investigate by looking at TOF0-TOF1 path-length effect
  • Global:
    • Performance is slow; believed to come from propagation; Jan Greis studying
  • MC:
    • G4BL generation of pion beam libraries still pending (FD)
      • To be efficient, v1 will just generate libraries to get production going, will consider TOF0 handoff (requires testing) at next iteration
      • FD to provide G4BL generation scripts, DM will run them on GRID

• Infrastructure
  • Analysis-based geometry corrections now in CDB
    • Geometry-handling updated to pull down corrections from CDB
    • Now default in MAUS 2.6.0
  • Reconstruction quality table has been created along with API (JM)
    • Reco flags will come from a post-processing job
      • 4 bits for each detector (count 11 detectors including RFs from Cooling Demo)
    • DR has finished code implementation for TOF & EMR, awaiting code/pseudo-code for tracker
  • Changes to the reconstructed data presentation & book-keeping
    • Online reconstruction plots will now be bundled with reconstructed output

• Data reprocessing
  • Sample data processed with new MAUS 2.6.0
    • awaiting results from validation by FD before proceeding with processing all StepIV data

• Online
  • Hall probes readout in data stream & unpacked data (dead hall probes are disabled)
  • Have not been able to debug prescaled trigger with beam.
    • Unpacking of trigger board is disabled, but will test during expert-led run on 9/21