Minutes_2022_03_22

Numba Meeting: 2022-03-22

Attendees: Andre Massella, stuart, Siu Kwan Lam, Benjamin Graham, Jim Pivarski, Todd A. Anderson, Guilherme Leobas,

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

Please refer to this calendar for the next meeting date.

Jim: New project from author of cppyy
- auto generated C++ binding for Python
  - Wim Lavrijsen
  - Developed cppyy, which are automated bindings between C++ and Python (non-JIT), more automated than Cython/pybind11/SWIG, etc.
  - Part of ROOT to make a huge C++ codebase usable in Python (as PyROOT) since 2004. Standalone cppyy accessible on BitBucket and PyPI and conda-forge.
  - He's planning/soon will be working on a project to link it to Numba (in what capacity? not sure) A real, funded project, possibly contingent on being able to point to potential users at DOE labs. Jim has connected Wim with Lindsey Gray at Fermilab; crossing fingers, hoping this actually happens.
Siu: shares suggestions/proposal for Python bytecode accessibility for source reconstruction
- link to document: https://hackmd.io/PEwynHamTvGdPgmrgw6cIw?view
Stu: BitGenerator and fastpath in C dispatcher

#7908 - numba.typed.typeddict.Dict.get returns the default even though the key is present
#7909 - Delays on first operations with numba objects
#7912 - NUMBA_DUMP_IR generate duplicates
#7913 - Using a function that prints inside another AOT function causes RuntimeError: missing Environment
#7916 - Silently incorrect compilation involving nested functions and asserts
#7917 - Potential enhancements after dropping python 3.7
#7921 - BUG: bytes type equals goes through ufunc mechanism
#7922 - gcd, lcm, subtract, sign, and negative don't match numpy behavior with bool inputs
#7923 - Tuple of functions is not iterable / cannot be accessed by index
#7925 - typed.List 2x slower than reflected list (reproduced on Intel and AMD CPUs)
#7926 - CUDA: remove context query in launch configuration
#7927 - CUDA: discussion: retire the use of a separate launch configuration object, launch kernels directly!

#7910 - Missing sys import in parfor_lowering
#7914 - Using a function that prints inside another AOT function causes RuntimeError: missing Environment