Future Meeting dates (usually last Wed of the month):
2021 Aug 25 @ 1400 UTC
2021 Sep 29
2021 Oct 27
General Admin
General Status w.r.t. Coronavirus measures
NRAO/ALMA:
NRAO in North America rapidly accelerating back-to-work@work! Full vaccination required by Sep 1. Some substantial resistance to vaccination at VLA site may disrupt operations in September.
ALMA entering "Baseline Science Operations" as of July 8, w/ 120 people on-site at OSF/AOS.
ASTRON/JIVE
Science/computing staff continuing work-at-home for now; vaccinations and openings accelerating.
Comments to Mark by end-of-day July 15, at which time we'll consider it complete and up-to-date, and publish it on main CASA/JIVE page (and possibly on CASA confluence?)
(George) Need to coordinate with Jen/Justin better....
(Ryan) Delayed by managing a very large dataset for benchmarking, also cluster upgrade, more recent hardware and A/C failures, etc. Initial, partially-resourced benchmarks looking good: cf casa6, half the time with only half the cores. Fully-resourced benchmark pending full restoration of computing infrastructure in CV.
(Mark) Anything to report in VLBI context? nothing for now
Nearly ready for validation/merge-to-master for 6.3 (waiting for 5.8/6.2 branching)
(Des, CAS-13224?) memory management improvements in fringefit. (Validating; already essentially validated by Janssen? Need this confirmation, then PR.)
(Mark, CAS-13270) Handle NaNs in imported Tsys. Merged.
(Mark, CAS-8550) Pulsar-binned and single-IF import. Merged (CAS-13442)
(Mark, CAS-13383) Mixed polarization basis conversion for JIVE. Merged.
Ongoing for 6.3+6.4
(George, CAS-12735; 12765,12553; 12954,10276) Frequency meta-info (finalizing commits for 6.3)
(Mark, CAS-13266) Per-scan interpolation via overloading per-obs mechanism.
Code review has uncovered a few (minor?) issues; will try to finalize this week.
(Mark) MSMetaData operation removed from Obs/Scan loop avoid unnecessary performance hit
(Mark/George) Semantics of "Time Segment" granularity to be generalized by George, to avoid internal confusions.
(Mark, CAS-13466) AveragingTvi2 preavg opt-out for fringefit: Validated, ready for PR.
(CAS-13287 chunking error in AveragingTvi2 for certain conditions; under separate investigation)
(Neal, CAS-13005) Handle refant exhaustion better. Validated, awaiting PR.
(Mark, CAS-13473) (new) Permit smoothcal for accor solutions: Merged.
(Des, CAS-13056) Overlapping solution intervals (defer to 6.3.1/6.4...)
Initial implementation awaiting review by George
Underway for 6.3+6.4
(Des, CAS-13361) Polarization combination for fringefit. (defer to 6.3.1/6.4...)
No code to review yet. Des/George converging on approach via a TVI layer (cf frequency averaging)
(Mark, CAS-13003). EOP update (6.4).
Investigating using almacalc with Python interface.
Other/Miscellaneous
(Mark/Des) Using external storage managers (DysCo) with CASA 6. (Offringa). Prospects for adding to casacore?
Andre Offringa is planning to merge this into casacore. (Similar to lazy fill of ASDM)
CAS-12485: OTF weight munging for solve (Can we complete validation and deploy? Des seeking interested users at JIVE)
(George/Justin) to coordinate initial testing on CASR-463 (TEC) to better characterize basic requirements (also CAS-13040 re TEC retrieval changes)