Casa Parallelization meeting minutes

Monday March 18th Room 317, 3:30pm MDT

Attendees:

Targets/task

• Remaining partition non-compliant tasks
  • Status update on tasks that still need work to be partition compliant
  • MS transform in good shape (replaces split, cvel, hanning-smoothing etc)
    • Does not do uvconsub
    • Potentially testable in May
  • Move virtual model column to source table * Filler
  • Status and future plans discussion
  • Looking at both parallel and new filler approiach and storage manager
• Parallelization of MS-MFS major cycle
  • Urvashi is working on as to do for 4.1 with more complete solution after 4.1 * In progress
  • Will include new FT machines, mosaicing, A-projection added to MS-MFS
• Other
  • Parallelize Cube imaging scatter gather (low level target for 4.1)
    • Switch to C++ concat images rather than python
    • Some parallelization
  • Expand threaded gridder case to >4 threads (not a 4.1 deliverable)
    • Sanjay looking at LOFAR approach
• Resource requirement heuristics by task (imaging first) targetted for 4.1
  • Discussion of how to proceed with making task resource (memory, number of cores etc) aware.
  • Large channel count cube imaging
  • Frist draft of heuristics document
• Issue with temp lattice calculation

Discussion

• Temp lattice
• Clean Parallelization heuristics

Deferred Items