Minutes_2021_04_13

Numba Meeting: 2021-04-13

Attendees: Todd, Graham, Leo, Jim, Luk, Kalyan, Stu, Siu, Val

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

Should we have a official video channel (e.g. youtube) for numba tutorials and/or other educational materials.
- MLIR keeps there meetup videos under google-drive
- group ownership/management?
Internal error are being eaten by Numba
- errors that shouldn't be suppressed are hidden by numba e.g. typo, invalid syntax
- an overload version get accidentally skipped because of these errors
- need changes to how code is raising exceptions to tell apart recoverable typing error vs critical error
- may potentially break existing code that uses python builtin exceptions to indicate recoverable error
We should target 0.54 as after we stabilize all the in-flight target/hardware extension
- 0.54 to support easier target extension
  - prove that new/existing target can use overload
- fastmath flag needs rework
  - old way: LLVM module rewritten
  - new way should affect callees

#6916 - Failing to build a jitclass with a deferred_type typed container as class member
#6908 - Tracker for target extension API potential issues
#6907 - Missing conversion from StringLiteral to unicode_type
#6906 - CUDA: Support __activemask
#6905 - Support error_model in cuda.jit
#6904 - CUDA: Produce a NumbaPerformanceWarning whenever a kernel is called on a host array
#6903 - Type inferring bug
- Codegen could have unwrapped the optional type to see if it contains a valid value - if not then raise.
#6901 - Stencil neighborhood option doesn't support numpy.int64.
#6900 - divmod should return integers when passed unsigned integer and positive constant
#6897 - x in ... resolvable at compile time behaves inconsistently between cuda/njit
#6896 - Closures guaranteed to resolve are not handled well by inliner