Monday Morning Meeting - 3 August 2015

• DIAL-IN NUMBERS & PASSCODES:
• USA Toll Free Number: 866-901-8266
• USA Toll Number: +1-203-566-3863
• PARTICIPANT PASSCODE: 725760

Attendance

• Socorro: Jeff, Lindsey, Urvashi, Sanjay, Pam, Martin, Tak, Kumar
• CV: Akeem, Andy, Mark, Darrell
• Garching: Dirk, Julian
• SCO:

News / Meetings / Visitors

• CASA Users Committee: Oct 14,15

Build, Release, Testing

• Fixes in build infrastructure
• Release Status:
  • Ephemeris Objects:
    • Internal vs. External issues
    • UVW Calculation: Work around in place
      • To double check that this made it into tarball
    • Issue with shadow flagging, has now been fixed
  • Has built optimized FFTW package: Bring in immediately after release
    • Need to have some predictive test of performance improvement: Should expect to see improvement in mosaic
  • visstat implementation is going slow: moving to next release
  • plotms bugs
  • tclean: * cube selection is in place * parallel testing has not been done * Real-gridder is coming in today * Virtual concat is checked in: * real physical concatenation * image left in place * images moved to subdirectory * images copied to subdirectory * Make the sorted subtable in memory rather than on disk * Issue with clearmod in clean (need to remove) * Old imager had 2 clark cleans: * Being worked on * Why can't we do Hogbom?
  • gainfield = nearest
  • some descoping on VI2 in solve

Architecture

• Technical Forums:

HPC

Development

• Begin thinking about CASA-4.6 planning

Pipeline

• ALMA / EVLA C3R1 acceptance
• work on development targets for pipeline C3R3 release, ALMA QA0 flags support, tclean integration, AQUA report generation

AOB

Developer Reports

Monday Meeting

• Sanjay Bhatnagar
• Sandra Castro
• Lindsey Davis
  • Prototyped the ALMA AQUA report generator
  • Followed up on pipeline / CASA tclean deconvolver='clark' / 'clark2' issues with Dirk M., Urvashi, Crystal
  • Followed up on various pipeline / ephemeris table integration issues
• Pam Ford
  • Testing and investigating bugs in plotms for upcoming release 4.5
    • Tested CAS-7315 - Phase center shift implemented
    • Tested CAS-7505 and 7506. Significant speedup (for example, 49s -> 5s elapsed time for exported plot) with Justo's changes in which vis cube not averaged when not requested.
    • Tested CAS-7699; used debugger to investigate plotms crash involving memory allocation with spw selection -- assigned to Justo
    • CAS-7733 plotms seg fault with shared axes on a grid - appears in RH6 tarball but cannot reproduce in developer Debug or Release build; worked on Mac build but no seg fault with developer Debug or Release build or with tarball.
  • SD tickets RTT: CAS-7761, CAS-7762 axis/datacolumn selections for SD MS
• Kumar Golap
  • virtual concat on spectral axis of images done and allowing it to be movable
  • Working on a task interface for msuvbin
  • worked on a float gridder for GridFT which will be used to calculate imaging weights
  • Looking into a complaint of Steve that tclean crashes in consecutive runs while self calibrating
  • Was surprised to learn that there was an executive decision (CAS 6660) that systemic frame will be called REST frame which basically voided hours and days of discussion of the difference of Undefined, Source and Rest frames in the imaging group..
• Justo González Villalba
• Jim Jacobs
• Jeff Kern
  • SKA Architecture Review
• Susan Loveland
• David Mehringer
• George Moellenbrock
• Dirk Petry
• Martin Pokorny
• Urvashi Rao
  • Responses to test reports + email discussions about time averaging and continuum subtraction
  • ( 3 days leave )
• Darrell Schiebel
• Ville Suoranta
• Julian Taylor
  • fix mstransform outputting negative total bandwidth with negative channel widths
  • prepared SIMD enabled fftw package
  • yet more minor tweaks to mpicasa (PATH+LD_LIBRARY_PATH propagation, remove a harmless warning)
• Takahiro Tsutsumi
  • Bug fix for tclean: data selection for multiple MSs (CAS-7740)
  • Modified JPL-Horizons ephem data request script to allow an object name not known to the script to proceed with the request
  • Modified automask code to replace the deprecated static convolve() to the object oriented one and added setsuppresswarnings(True)
  • Fixed statwt to honor flags in FLAG column (CAS-7756)
  • Some work on mask parameter interface (not checked in)

Friday NAOJ Meeting

• Kanako Sugimoto
• Wataru Kawasaki
• Masaya Kuniyoshi
• Takeshi Nakazato
• Renaud Miel