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PC02092015

Wednesday 2nd September 2015 at 15:00 BST
Room CR09 RAL

Summary of Actions

  • ACTION: Fix tracker geometry plane ordering bug (C. Hunt)
  • ACTION: Look into TRefArray limits (A. Dobbs)
  • ACTION: Optimize residuals for final tracks (C. Hunt) - Done for straights
  • ACTION: Get detector output in global coordinate system (C. Heidt, C. Hunt)
  • ACTION: Fix close to paraxial tracks producing nan output (C. Hunt)
  • ACTION: Update tracker online plots (M. Uchida)
  • ACTION: Update tracker schedule (P. Kyberd)
  • ACTION: Update ConfigurationDefaults with tracker optimum parameters (P. Kyberd)
  • ACTION: Set HelicalPR on or off depending on CDB value of magnetic field (C. Hunt)
  • ACTION: Restructure TOF Digitisation and incorporate MapCppTrigger (D. Rajaram)
  • ACTION: Make current beamline geometry available in CDB (R. Bayes)
  • ACTION: Implement dE/dx in Runge-Kutta (J. Greis)
  • ACTION: Need C++ Reducer example (A. Dobbs) C. Rogers will provide one
  • ACTION: Need MAUS Schedule for Alan Grant by next time (CKOV: A.Liu, TOF: D. Rajaram, MC: D. Rajaram, Global: J. Greis)
  • ACTION: Fix geometry test which randomly produces large SOAP error (R. Bayes)

Agenda

Release status

  • Current release = 1.0.0
  • Targets for release 1.1:
    • execute_against_data.py should be always make a tarball
    • Support for gcc 4.9
    • Updates to Geometry handling
    • EMR reducer
    • Updated tracker noise
    • Workbook added
  • Targets for future release:
    • Trigger MC
    • Fix memory leaks
    • Tracker -- Kalman updates

Schedule

Detectors

  • Detector integration (D. Rajaram)
    • Reconstruction quality flags (A. Dobbs to make requests to detector groups) #1585
  • Tracker (P. Kyberd)
    • PRIORITY INTERRUPT C. Hunt email 18-08-2015:
      _"After a lot of playing around, and seeing how the tracker reconstruction correlates to the TOF reconstruction, it seems that the output from the track reconstruction is incorrect and requires a rotation of 120 degrees and a sign flip to correct it. If you sit and think for a while you can justify this as being the result of the planes being in the wrong order. However as the data is not specifically sensitive to the plane ordering it could be one of 3 things:
      • Construction differs to design
      • Recon geometry differs to construction
      • Mapping differs to construction and recon geometry"_
        K. Long keen we pursue as matter of urgency.
      • Also observe that tracks when visualised do not appear to line up between trackers, in both position and slope - same issue?
    • Space-point, track-finding efficiency studies partly blocked by lack of trigger #1182
    • ACTION: Optimize residuals for final tracks (C. Hunt)
    • ACTION: Fix close to paraxial tracks producing nan output (C. Hunt)
    • ACTION: Update tracker online plots (P. Kyberd)
    • ACTION: Update tracker schedule (P. Kyberd)
    • ACTION: Update ConfigurationDefaults with tracker optimum parameters
    • ACTION: Set HelicalPR on or off depending on CDB value of magnetic field (C. Hunt)
    • Flag low pt for downstream tracker reconstruction? (A. Dobbs)
  • TOF (D. Rajaram)
    • Restructure TOF MC Digitizer - part of trigger MC (D. Rajaram)
  • EMR (F. Drielsma)
  • KL (M. Bogomilov)
    • STANDING: MC validation, optimization, tuning, #1411
  • CKOV (A. Liu, Drews, Winter, D. Rajaram)
  • Monte Carlo trigger (D. Rajaram) #1182
    • ACTION: Restructure TOF Digitisation and incorporate MapCppTrigger (D. Rajaram)

Global Reconstruction

  • Tracking (J. Greis)
  • PID (C. Pidcott)
  • Detector output
    • ACTION: Get detector output in global coordinate system (C. Heidt, C. Hunt)
    • ACTION: Need uncertainties from detector reconstructions: on positions, momenta, tof time (A. Dobbs)
  • ACTION: Implement dE/dx in Runge-Kutta (M. Uchida)
  • Need uncertainties from detector reconstructions: on positions, momenta, tof time (A. Dobbs)

Unpacking

  • Need to roll out SL6 to Jenkins nodes (P. Franchini)
  • DAQ channel maps to DB (D. Rajaram) #1375, blocked by #994

Batch Reconstruction

  • GRID running 1.0.0
    • Enable MC GRID running again #1739
    • execute_against_data.py to always produce tarball
  • Fix memory leaks

Infrastructure

  • Geometry/MC (S. Ricciardi, R. Bayes)
    • ACTION: Make current beamline geometry available in CDB (R. Bayes)
  • Need C++ Reducer example (A. Dobbs)
  • Documentation

Online

Performance

  • Speed improvements
    • Fix memory leaks - preventing GRID runnning (A. Dobbs, D. Rajaram, C. Rogers)
    • YK proposes parallelising MAUS with C++11 multi-threading, at the mapper level, see #1638 (A. Dobbs, D. Rajaram, C. Rogers, Y. Karadzhov)
      • Extensive refactor work
  • Beam generation excessive resource usage
    • Query analysis group requirements (in particular how many G4BL beams we need)
    • Consider alternative upstream beam generation code

Tools

  • Add V. Blackmore event visualiser to MAUS

Documentation

  • Finish MAUS workbook (A. Dobbs)

AOB

International Toll-Free Dial-in numbers

  • Switzerland: 0800705351
  • UK: 08004960576
  • US: 1-866-740-1260
  • Other numbers
  • Access Code: 5673390

Notes

Attendance

R. Bayes, A. Dobbs, C. Heidt, F. Drielsma, J. Gries, A. Liu, D. Rajaram, C. Rogers, C. Pidcott

Apologies: P. Kyberd, M. Uchida

Release

  • D. Rajaram will merge A. Liu's CKOV work, together with updates to various modules to pass MAUS::Data*
  • Otherwise just need last updates to Geometry (R. Bayes)

Detectors

  • Detector Integration
  • KL
  • Ckov
    • A. Liu presented report on CKOV MC digitiser work, good progress
    • A. Liu suggest greater verbosity in ObjectProcessor-inl.hh and MiceModules - agreed to implement himself
    • C. Rogers requests on behalf of Analysis Group that mass is handled properly, not just left at 0, A. Liu agrees
  • EMR
  • Tracker
    • Plane ordering ambiguity is a major issue, need to resolve ASAP (stands, C. Heidt keen to get involved, C. Hunt back in a week or so)
    • PK will send schedule update to AD (stands)
  • TOF

Global Reconstruction

  • J. Greis has taken over RK dE/dx - Schedule will be updated further when he has a feel for work involved
  • C. Pidcott holding off on committing updates until track matching is ready
  • C. Rogers emphasises his desire to see global pid and tracking working soon

Unpacking

Batch Reconstruction

  • C. Rogers emphasises importance of getting MC GRID processing back up and running ASAP

Infrastructure

  • Geometry
    • R. Bayes gave presentation present status of Step IV as built geometry work - last issue is test requiring large (up to 4 - 4.5GB) memory
    • Large SOAP error remains a problem, adding as ACTION item
    • Concern expressed over how to know detector positions accurately in hall - detector positions themselves relative to the survey nests. Notes that this is responsibility of individual detectors groups. R. Bayes will talk to M. Uchida about tracker in particular.
  • MC
  • G4BL
  • Other

Online

  • C. Rogers has pushed back deadline for updates to online reconstruction until mid-September, waiting on more tracker plots from M. Uchida
  • A. Dobbs repeated call for people to sign up to SOC shifts

Performance

Tools

  • V. Blackmore has produced a nice MAUS event visualiser using Qt, needs to be added into MAUS (A. Dobbs)

Miscellaneous

Updated by Dobbs, Adam over 5 years ago · 22 revisions