Minutes_2021_03_09

Numba Meeting: 2021-03-09

Attendees: kalyan, Ehsan, Todd, Jim P., Luk, Graham, Stuart, Siu, Val

NOTE: All communication is subject to the Numba Code of Conduct.

RC3/Final status
- Reported problems:
  - https://numba.discourse.group/t/helping-test-numba-0-53-0-rc/519/22
    - likely NumPy behavior specific
    - non-blocking
Roles continued
- Roles:
  - no disagreement so far; will proceed to draft document for governance. (details in last week's meeting notes)
- Bigger issue to get more maintainers
  - skill-set mismatch from user to maintainer
  - incentives
    - maintainer recognition; e.g. pandas has a page of maintainers
    - "Powered By" page
      - to attract SE/CS type
      - ripple effect on scientific applications
      - Is it advertising?
  - invert problem? Should we have a "powered by sticker"?
- Numba mentorship program
  - Commit to a few hours a week
  - Learn how to triage (debug) Numba issues
  - An experienced maintainer will be assigned to guide you
  - Prior contributions may be a requirement
    - or even an existing contribution
  - Revisit in 4 weeks

#6807 - Invalid use of Function(<ufunc 'isnan'>) with argument(s) of type(s): (int64)
#6806 - Breaking Changes in Intel TBB 2021.1 - Numba Fails to Build
#6803 - ListType to numpy array issue
- Feature request for np.array(typedlist)
#6797 - Issue when using 'not in' in numba
#6796 - Parallel is two times slower in LIF neuron model
- Further discussion for discourse
#6784 - parfors invalid/outdated varmap
#6783 - parfors lowering error from sum with internal prange (suspect SSA related!?)
#6782 - parfors invalid result from nested reduction
#6781 - Multiple overload method/attribute templates for same type overlap
#6778 - Refactor and move create_temp_module into numba.tests.support
#6777 - CudaSupportError: Error at driver init: [100] Call to cuInit results in CUDA_ERROR_NO_DEVICE:
- Graham to suggest ctypes cudart first
- RAPIDS working with docker image setup?

#6808 - #3468 continued: Add support for np.clip
#6804 - added runtime version to numba -s
#6802 - Add lineinfo flag to PTX and SASS compilation
#6801 - ParallelAccelerator no long will convert StaticSetItem to SetItem because record arrays require StaticSetItems.
#6800 - Make a common standard API for querying ufunc impl
#6799 - Print Numba and llvmlite versions in sysinfo
#6798 - CUDA: Add optional Driver API argument logging
#6795 - CUDA: Lazily add libdevice to compilation units
#6794 - refactor and move create_temp_module into numba.tests.support
#6790 - Wip/pr6762 addoptionstack
#6788 - Add support for fastmath 32-bit floating point divide
#6775 - CUDA: Use NVVM bitcode IR interface