Casa6

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  Rui Xue <rx.astro@gmail.com> 6 days ago 627866840505ab50d65049c0b955b1d767b6f307

  Merge remote-tracking branch 'origin/CAS-13898' into CAS-14761
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  Srikrishna Sekhar 07 Apr 2026 ff635a9a893262d4b6ccfedd1e71fd9b3eb69a79 m

  CAS-13898 : Fix memory allocation per-plane
  The previous fix to pass in the available memory into auto-multithresh
  did not work as expected, because the per-plane memory budget never
  exceeds the total.
  
  This fix divides the total memory budget by the estimated number of
  planes used in the algorithm, and passes that in to the Lattice images.
  This correctly seems to restrict the memory usage.
  
  From initial benchmarking, memory limits are now respected as expected.

  • casatools/src/code/synthesis/ImagerObjects/SDMaskHandler.cc (version ff635a9a893262d4b6ccfedd1e71fd9b3eb69a79) (diffs)
  • casatools/src/code/synthesis/ImagerObjects/SDMaskHandler.h (version ff635a9a893262d4b6ccfedd1e71fd9b3eb69a79) (diffs)
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  Srikrishna Sekhar 02 Apr 2026 b21db203ff9a81fab1705c7a18cd11f9c9f9008a m

  CAS-13898 : Re-use getMemoryAvailable from appRC
  So now automultithresh should pick up the right memory limits
  internally.

  • casatools/src/code/synthesis/ImagerObjects/SDMaskHandler.h (version b21db203ff9a81fab1705c7a18cd11f9c9f9008a) (diffs)
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  Srikrishna Sekhar 02 Apr 2026 67f8561f0cc6a4bbfda4c2a8172205b76ff29fcc m

  CAS-13898 : remove unnecessary temp image allocs
  Removed two temporary images that have memory allocated but are never
  used. This seems to have brought down total memory usage by 20-30% for
  auto-multithresh.

  • casatools/src/code/synthesis/ImagerObjects/SDMaskHandler.cc (version 67f8561f0cc6a4bbfda4c2a8172205b76ff29fcc) (diffs)