Monday Morning Meeting 2/4/19

  • IP:
  • Phone: (434) 817-6524

News / Management
  • 5.4.0 and 5.4.1 patch releases coming out - fix for tclean chanchunks
  • 5.5 validation testing needs to wrap up - release in ~2 weeks
  • 5.6 requirements definition underway
  • CASA 6 ramp up - meeting TBD
  • CASA Infrastructure Modernization kickoff this week - small team to start
  • Hiring
    • Search Committee forming for SW Engineer / Assistant Scientist (2 selections)
    • New Hire - Jan-Willem Steeb expected to start in Feb. (in CV) - assigned to imaging development


  • Calibration and Flagging
    • N/A
  • Imaging
    • N/A
  • Measurement Set
    • N/A
  • Image Analysis and Casacore
    • N/A
  • Data Visualization
    • CARTA - F2F meeting in Cape Town, great discussions and assignments for version 1.1
    • Plotms - completing tickets for 5.5: CAS-11501 Ready to Validate, CAS-11927 Under Validation, CAS-12147 updated for PR, CAS-12205 scheduled
  • CASA 6
    • Regular five failing task tests
    • test_imstat has been failing for a few weeks with terminate called after throwing an instance of 'std::bad_alloc'
    • Finished with casashell module which layers CASA's shell over IPython and the casatools and casatasks modules
    • Created a relocatable python distribution which can install casashell, casatools, and casatasks via PIP (with the whole package still being relocatable)
    • Remaining Tasks
      • identify GUIs which will be supported in CASA 6 (Juergen & Ryan)
      • create tar file with the portions of CASA 6 that are available
      • add scripting to stand-alone CASAviewer and CASAplotms ( gRPC with python class)
      • create an independent build for remaining GUIs identified by Juergen and Ryan
      • integrate telemetry, crash reporting, and HPC with casashell
  • Other
    • CASR-318 "new uvcontsub implementation" - discussion and clarification of requirements. Would need feedback on the requirement "write to MODEL column".

Build / Testing

  • Infrastructure
    • N/A
  • Unit
    • N/A
  • Verification
    • Working on gaincal task level test (Neal)
    • tclean regression test work
      • Data being used from First Look at Imaging casaguide
      • Seeing differences between serial and parallel runs, as well as diffs in parallel runs themselves
      • twhya_cont_auto_clean_image.png below
        • The clean image
      • ImageDiff _serial_identical_tclean_params.png below
        • Identical serial runs, just to show the difference as expected running immath (expr='IM0-IM1')
      • ImageDiff _n7_vs_param_para_true_second_try.png below
        • Difference in images where one image is casa (serial mode), the other image is mpicasa (tclean (parallel = True)) running immath (expr='IM0-IM1')
      • ImageDiffSer _vs_mpicasa_para_false.png below
        • Difference in images where one is casa (serial mode), the other is mpicasa (tclean (parallel = False)) running immath (expr='IM0-IM1')
  • Validation
    • N/A

User Liaison Updates

  • Inline help: rearranging content so that information shows up on CASA Docs parameter pages. Example: (login required)
  • CAS-12148: When specifying a beam-size in tclean, the residual image is not scaled, which creates wrong flux values for noise and signal that has not been cleaned.
  • CAS-11833: tclean segfaults when running on multiple ms's that came out of mstransform. Only workaround solution appears to be useing task ‘oldsplitÂ’, but that needs to be deprecated for users.
  • Newsletter: ideas for contributions welcome

Pipeline Updates

  • Data Processing F2F last week at Santiago: nothing critical for Pipeline and CASA
  • CASA 5.4.0-prerelease passed to JAO. Integration to data processing infrastructure (DARED) is done. JAO will test 4 data sets to confirm fixes and then ask CASA project to create release package.
  • Pipeline confluence page is started to be in actual use.

Single Dish Development (1/31/19)
  • Wataru Kawasaki
    • CAS-12083 document validation done by Kazufumi. ticket completed.
    • CAS-11955 looking into the codes of tsdimaging, SDGrid, etc.
  • Takeshi Nakazato
    • CAS-12085 new interactive flagging mode in plotms: pull request has been merged. documentation in review.
    • reported CAS-12231: Bob immediately fixed the problem. validation done. Resolved.
    • reported CAS-12237: I think this is a Blocker for 5.5
  • Renaud Miel
    • CAS-8087
      • Fixed bug: properly handle current limitation: averaging not supported
      • Checked tester problem report: problem was in data
      • Wrote Plone documentation
  • Suminori Nishie
    • CAS-8418Higher order poinitng interpolation
      • Adding a new gtest_fixture to examin all direction-column, all antenna-id, all-row for getDirection() with interpolation. [NEW, In progress]
      • Adding 'Antenna and Pointing Access' class to simplify/reduce GTest code.
      • Simplifying Gtest code , using above the new class, delete obsoleted/duplicated code.
    • Obtaining higher C++skills, (OOD/OOP)
      • Studying "Design Pattern", "Analysis Pattern" in general. Studying basic or fundamental idea in OOP in C++
      • Obtain how to use Smart Pointer (unique_ptr<T>, shared_ptr<T>.
Topic attachments
I Attachment Action Size Date Who Comment
ImageDiffSer_vs_mpicasa_para_false.pngpng ImageDiffSer_vs_mpicasa_para_false.png manage 70 K 2019-02-04 - 09:13 AndyHale mpicasa runs difference in tclean between parallel = True and False
ImageDiff_n7_vs_param_para_true_second_try.pngpng ImageDiff_n7_vs_param_para_true_second_try.png manage 97 K 2019-02-04 - 09:08 AndyHale  
ImageDiff_serial_identical_tclean_params.pngpng ImageDiff_serial_identical_tclean_params.png manage 8 K 2019-02-04 - 09:11 AndyHale Identical serial runs, to act as a control in these results
twhya_cont_auto_clean_image.pngpng twhya_cont_auto_clean_image.png manage 31 K 2019-02-04 - 09:14 AndyHale Actual clean image from the data
Topic revision: r14 - 2019-02-04, BjornEmonts
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