Minutes_2020_02_11

Numba Meeting: 2020-02-11

Attendees: Val, Aaron, Siu, Pearu, Stuart

Apologies: Todd, Graham, Stan.

Issue discussion:
- The all the files refactor is done
- Update PRs merging in master, ask if help needed
- threadmasking
  - new tbb
  - few minor things left
  - ETA on done? Blocker for next refactoring.
    - Stu will do migration refactor patch + fix up TBB from conda-forge + ImportError logic
    - PR to go on Quansight fork
    - Aaron with check PR and merge if happy
    - Siu to do last check
- first class function types
  - capture rough parts from existing implementations in issue
    - then we can merge this PR
  - couple of days looking at njit support needed
  - probably not blocking refactoring
SSA now!
- can't tolerate more workaround
- depends on parfors refactor
- depends on ir.Del removal
LLVM 9 update?
- builds linux, windows, osx (all x86*)
- ARM, PPC are still unknown
Slow unboxing problem in Clifford
- make issue for this one.(stu)

#5226 - np.asarray sometimes doesn't work on List
- feature request
#5224 - infix logical or/slicing bug
- bug
#5223 - Incorrect inference for array mutability
- needs SSA
#5221 - literally fails for argument default values
- bug
#5219 - Typing failure when type-check is in closure variable
- needs SSA
#5218 - Use __init__ type hints for jitclass spec?
- feature request
#5217 - Comparison with a single-element array
- feature request
#5215 - namedtuple dispatch bug
- already have a patch
**** #5214 - Collecting things that are being used as "public" API
- compatibility/backports/deprecation warnings
- Public use is large
- Split API:
  - public - stable
  - public - unstable
  - private
- Compatibility layer, for deprecation of stuff
- Provide early release wheels, weeklys?
#5208 - mssa.fit(wine_tr.to_numpy()[:500]) - Error while runing on Windows 10 Conda3 on this lib https://github.com/kieferk/pymssa
- use update needed
#5206 - Function of len() is invalid to dynamic share array
- bug
**** #5205 - Ideas for a new Rewrite pass
#5204 - Type-unification / literal_value access problems
- arange problem.
- probably not a bug
#5202 - numpy.lib.recfunctions not recognized by numba
- feature request
#5199 - Eq-Comparison of Optional(unicode_type) and unicode_type does not work
- has a PR
#5196 - keyword of 'assert' in cuda
#5195 - Where do these variables store in kernel function？
#5194 - free the gpu cached memory
#5191 - cuda ufunc unnecessarily calling __cuda_array_interface__

#5211 - support axis argument for np.roll()
#5203 - numpy.lib.recfunctions
#5198 - SIMD vectorization failure when accumulating in an array element
#5192 - ConstantInferenceError: Failed in nopython mode pipeline (step: nopython rewrites) Constant inference not possible for: getattr(attr=format, value=$const447.2) File "<input>", line 29: <source missing, REPL/exec in use?> File "<input>", line 29: <source missing, REPL/exec in use?>

#5225 - Adjust interpreter to make conditionals predicates via bool() call.
#5222 - Fix compiler warnings due to missing (void) **** - #5220 - Add BooleanLiteral type
#5216 - Fix namedtuple mistreated by dispatcher as simple tuple
#5213 - Fix .strip() to strip all whitespace characters **** - #5212 - Adds support for viewing the CFG of the ELF disassembly.
#5210 - Remove more unsupported Python versions from build tooling.
#5209 - Use importlib to load numba extensions
#5207 - Remove AUTHORS list
#5201 - Immutable typed-list **** - #5200 - fix #5199
- Siu is taking a look