Monday Morning Meeting : 7 Oct 2019

  • IP:
  • Phone: (434) 817-6524
News / Management
  • CASA Users Committee met last week ( CUC meeting presentations )
    • Highlights (Jen?)
  • VLA data reduction workshop this/next week.
  • Ryan, Bjorn, George and Brian G. are at ADASS this week ( GM for VLBI in CASA, BE for CASA update, RR for CASA6/CNGI, BG for CNGI partners? )
  • Jen preparing for an ASAC meeting in two weeks, to report on CASA's part of ALMA's efforts to prevent/catch bugs of the kind that trigger major ALMA re-processing efforts.


  • Mid-term infrastructure work topics : Please look at this Confluence Page for context and to add items the list.
    • These development topics should be do-able in a year or so, and solve issues that are critical for continued operations of casa6 through about 2025+.

  • Simulating Measurement Sets for development and verification testing :
    • Example Simulator scripts (using casa6) : Simulation_Script_Demo.ipynb . (UR will add notes and plots and will post it on the 5.7 dev Confluence page. Others with sim scripts, please send interesting pieces to add to this list. )
    • Topics in need of test data and scripts (for which the above scripts are a starting point) :
      • fixvis (uvw phase rotation, test with MSs phased up at and away from a source, with/without imaging phasecenter)
      • heterogenous array simulation for ngVLA to test if our prescription to users actually works or not.
      • flagdata time averaging : demonstrate its use on the use case of interest (weak RFI that autoflag cannot catch at native time/freq resolution but which shows up clearly after OTF averaging).
      • Other areas (as needed) : Generation of MSs with interesting field/spw setups to test all visibility manipulation and metadata-confusion areas.

  • Calibration and Flagging
    • An ALMA Tsys normalization issue is under investigation (GM is leading the analysis and R&D required for a solution).
  • Imaging
    • KG : mpicasa for cube parallelization ( update on plans/test ? )
    • KG : experimentation with parallel writes (with FMP) using Adios2
    • JWS : Implications on runtime vs memory of major/minor cycle separation.
  • Data Visualization
    • Image-analysis into CARTA via C++ ? Update from Pam/Dave ?
      • (Pam) I cannot get this to build on the Mac. The build is based on the casatools build instructions. This problem is not the ia build specifically, but would fail for the full casatools install as well. The issues are with the java version and python, but the carta backend and casacode/imageanalysis are C++. I installed python 3.6 but now it fails in configure.
  • Import / Export
    • Does anyone understand uvfits details ? At least one ticket is held up because no one seems to know what to do or who to ask about a specific conversion between keywords.
    • BG : Recent VLA change ? Update ?
  • Infrastructure
    • comebinespw in vi2 : update from EG ?
  • Simulation
    • ngVLA wants to simulate. scripts have been provided to them.
  • CASA 6
    • Next week (Oct 14), Darrell will give more instructions on casa6 build/dev branches, etc.

Build / Testing

  • Infrastructure
    • N/A
  • Unit
    • N/A
  • Verification
    • N/A
  • Validation
    • N/A

User Liaison Updates

  • N/A

Pipeline Updates

  • N/A

Single Dish Development

  • Wataru Kawasaki
  • Takeshi Nakazato
  • Renaud Miel
  • Suminori Nishie
-- UrvashiRV - 2019-10-02
Topic revision: r6 - 2019-10-07, UrvashiRV
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