Minutes_2018_04_26

Numba Meeting: 2018-04-26

Attendees: Siu, Todd A, Ehsan, Oscar, Stuart

#2921: numpy booleans that aren't 0/1 in memory are treated differently to numpy
#2920: Parallelization increases run time
- check time in compiling
#2919: NaN test yields wrong result with fastmath=True
- more docs
- maybe warning about isnan at compile-time w/ fastmath=True
#2916: Feature request: support **kwargs in CALL_FUNCTION_EX
- could fix massive sympy issue
#2913: Test refactoring
- Stuart to reply.
#2906: Unliftable loops should not be lifted as object mode loops. bug
- Acknowledge it exists, don't burn effort until it is a problem.
#2904: GIL issues with cfunc calling numpy code
- cfunc shouldn't always release the GIL
#2903: Requires-Dist field empty
- still no metadata; investigating
#2901: Compilation is not thread safe because of _temporary_dispatcher_map
- need investigating

#2910: [WIP] More CUDA intrinsics
- Check if it works on GPU
- Make sure it goes thru the buildfarm before merging
#2905: Fix for #2862
- need test
#2902: Support for np.unique
- ready to review
#2897: [WIP] Fix line position of delete statement in numba ir 2 - In Progress
#2894: [WIP] Implement jitclass default constructor arguments.
#2869: WIP: use pairwise summation in sum
#2860: [WIP] __cuda_array_interface__
#2840: [WIP] Support list of refcounted types
- Just needs documentation
#2817: [WIP] Emit LLVM optimization remarks
- Want to refactor to not require temp file on disk
#2793: Simplify and remove javascript from html_annotate templates.
- annotate method now on dispatcher objects

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Automate wheel creation
Thread pool rewrite and TBB interface improvements
- or python/nopython mode mixing
How close are we to ufunc/gufunc rewrite to remove NumPy entanglement?
- separate decorator for XND gufunc
- "Just" need to register our kernel to xnd
Containers of refcounted objects:
- Time for numba.list? (next release)
- numba.dict? (next release?)
ARMv7 fixes
- Aligned malloc issues
- Typing problems because of the above
- OpenBLAS issues
- NumPy issues derived from alignment
PPC64LE build of llvmlite (after LLVM 6.0.1 is released?)
More user focused items, docs/annotate tool
Buildfarm overhaul ?