PC22072015¶

Wednesday 22nd July 2015 at 15:00 BST
Room CR09 RAL

• Table of contents
• PC22072015
  • Summary of Actions
  • Agenda
    • Release status
    • Schedule
    • Detectors
    • Global Reconstruction
    • Unpacking
    • Infrastructure
    • Online
    • Performance
    • Documentation
    • AOB
  • International Toll-Free Dial-in numbers
  • Notes
    • Attendance
    • Detectors
    • Global Reconstruction
    • Unpacking
    • Infrastructure
    • Online
    • Performance
    • Miscellaneous

Summary of Actions¶

• ACTION: Look into TRefArray limits (A. Dobbs)
• ACTION: Fix tracker unpacking and digitisation (E. Overton, P. Kyberd) - Done?
• ACTION: Flag low pt for downstream tracker reconstruction (A. Dobbs) Done in personal dev branch, needs testing before merge
• ACTION: Optimize momentum residuals for final tracks (C. Hunt) - Done for straights
• 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: Restructure TOF Digitisation and incorporate MapCppTrigger (D. Rajaram)
• ACTION: Pursue uncertainties from TOF and global coordinate transform (A. Dobbs)

Agenda¶

Release status¶

• Current release = 0.9.7
• Targets for release 0.9.8:
  • Add KL output updates
  • SciFi speedup
  • MAUS speed up
  • Fix memory leaks
  • execute_against_data.py should be always make a tarball

• Targets for future release:
  • Trigger MC
  • Tracker -- Kalman updates

Schedule¶

• attachment:2015-07-08_MAUS-Schedule.ods -> attachment:2015-07-08_MAUS-Schedule_updated.ods

Detectors¶

• Detector integration (D. Rajaram)
  • Reconstruction quality flags (A. Dobbs to make requests to detector groups) #1585
• Tracker (P. Kyberd)
  • Space-point, track-finding efficiency studies partly blocked by lack of trigger #1182
  • ACTION: Tracker unpacking and digitisation fix (E. Overton, A. Dobbs)
  • ACTION: Flag low pt for downstream tracker reconstruction (A. Dobbs) Done in personal dev branch, needs testing before merge
  • ACTION: Optimize momentum residuals for final tracks (C. Hunt)
  • ACTION: Fix close to paraxial tracks producing nan output (C. Hunt)
  • ACTION: Update online plots (P. Kyberd)
  • ACTION: Update Schedule (P. Kyberd)

• TOF (D. Rajaram)
  • Restructure TOF MC Digitizer - part of trigger MC (D. Rajaram)
• EMR (F. Drielsma)
  • MC #1033
    • ACTION: Refactor code to remove extra recon events (F. Drielsma) Done, in trunk
• KL (M. Bogomilov)
  • STANDING: MC validation, optimization, tuning, #1411
• CKOV (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)
    • See #1631
  • ACTION: Need uncertainties from detector reconstructions: on positions, momenta, tof time (A. Dobbs) Update - emailed detector owners, CKOV replied, EMR now implemented and in trunk, no other responses
    • Will also need data structure modifications once we understand how to get the uncertainties

Unpacking¶

• Need to roll out SL6 to Jenkins nodes (P. Franchini)
• ACTION Fix tracker unpacking and digitisation (E. Overton, P. Kyberd)
• DAQ channel maps to DB (D. Rajaram) #1375, blocked by #994

Infrastructure¶

• Geometry/MC (S. Ricciardi, R. Bayes)
  • Speed improvements (R. Bayes)
• Monte Carlo
  • ACTION: Upload script feature (R. Bayes)
• GRID and Batch Production (C. Rogers, J. Martyniak)
  • Running 0.9.7
  • Fix memory leaks
  • execute_against_data.py
• Code deployment
• Documentation
• Data Structure

Online¶

• Online reconstruction (A. Dobbs)
• Have prototype GUI and prototype ROOT-based document DB to replace maus-web-app and django #1312 (C. Rogers)
• Software On Call (A. Dobbs)
  • http://micewww.pp.rl.ac.uk/projects/maus/wiki/Software_on-call (SOC wiki)

Performance¶

• Speed improvements
  • Fix memory leaks - preventing GRID runnning (A. Dobbs, D. Rajaram, C. Rogers)
  • No more passing JSON between modules, as string conversions are expensive, only use JSON for configuration data and input / output (A. Dobbs, D. Rajaram, C. Rogers)
    • Extensive refactor work
  • 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

Documentation¶

• Finish MAUS workbook (A. Dobbs)

AOB¶

• MAUS paper draft - developers please review and supply input where required launchpad

International Toll-Free Dial-in numbers¶

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

Notes¶

Attendance¶

Detectors¶

• Detector Integration
• KL
• Ckov
• EMR
• Tracker
  Lots happening, PK will update schedule when things calm down
  Every now and then (~0.4% of time) see a corrupt event due to ADC saturation. Now accounted for in code.
  Full recon now working for straight tracks. PatRec and Kalman both seem to be doing well.
  EO will be going over tracker electronics trying to make improvements.
  Progress being tracked in #1696 - plots available here.
  AD updated real data digitisation, mapping now slightly more efficient. Next up investigate SciFiEvent copy constructor (AD, CHunt)
  New actions added.
• TOF

Global Reconstruction¶

• Quite a lot of Jan's stuff blocked by dE/dx
• Quite a lot of Celeste's stuff blocked by lack of Global coordinate output from detectors

Unpacking¶

Infrastructure¶

• Geometry
• MC
• G4BL
• GRID

Online¶

Performance¶

• Speed up
• Nearly there on API, etc, memory leaks now major issue.
  Celery needs strings - slower than not fanning out to multiple nodes in the first place -> dump online recon celery system in favour of one fast machine

Miscellaneous¶