Minutes_2019_01_22

Attendees: Ehsan, Stuart, Stan, Siu, Todd

0. Feature Discussion

1. New issues

• #3702 - Higher precision version of Numba's re-implementation of Numpy's mean algorithm
  • depends on better summation
• #3700 - prange with field from jitclass named T fails
  • fixed by #3701
• #3699 - prange segfault, invalid loop invariant detection
  • add doc on numba IR nodes
• #3698 - performance cuda/roc doc page
• #3690 - getting heapq to work ith @njit
  • nice to add at some point
• #3689 - Support np.lexsort
• #3688 - Fix needed for invalid signature specification error message
  • probably a quick fix
• #3687 - parfors gufunc lowering error in hoisting
  • See #3697 for PR
• #3686 - parfors type inference issue, locked types
  • Need to investigate why this didn't happen before
  • Currently minimal reproducer is very minimal (remove anything and the bug goes away)
  • Possibly allow locking of type with the same type?
• #3683 - overload_method error on typing of literals
  • Siu will investigate
  • Can also solve default arguments issue with overload_method?
• #3682 - Expand ctypes documentation passing np.array with .ctypes
  • From gitter support question
  • Need to explain ndarray.ctypes vs ndarray.ctypes.data
• #3681 - parallel prange race condition
  • Doc fix
• #3680 - array manipulation
  • Another manifestation of label length bug in LLVM

Already Closed

• #3679 - pow(x,y) or x**y

2. Open PRs

• #3703 - WIP: Implementations of type hashing.
  • waiting for CI to check on more platforms
• #3701 - Fix array.T analysis (fixes #3700)
  • failing on Python 2.7 for non-obvious reason
• #3697 - Issue3687
  • ready for review
• #3696 - Add intrinsic to help debug refcount
  • Ready for review
• #3695 - Convert return of None from intrinsic implementation to dummy value
  • ready for review
  • Stuart will take a look to see if exception can be improved
• #3694 - Fix memory leak in enumerate iterator
  • ready for review
• #3691 - [WIP] Make TypingError abort compiling earlier
  • Failing on Python 2.7
• #3685 - WIP: fix-3456 support of numpy tile
  • In progress.

Already Merged

• #3693 - Intercept failed import to help users.
• #3692 - Fix test failure due to overly strict test on floating point values.
• #3684 - Support C array in C struct

Old Active

View https://github.com/numba/numba/projects/10 instead

• #3678 - [WIP] Support for str.split and str.join

  • will be blocked on default args to @overload_method

• #3660 - Added Ignore message to test numba.tests.test_lists.TestLists.test_mul_error…

  • Awaiting author

• #3657 - np.max, np.min, np.nanmax, np.nanmin - support for complex dtypes

  • Ready for review

• #3655 - WIP: support numpy.average

  • WIP

• #3646 - Log internal errors encountered in typeinfer

  • Ready for review

• #3640 - [WIP] PassThruContainer

  • Author has new questions

• #3638 - Fix frame injection in the dispatcher tracing path.

  • WIP

• #3630 - np.where with broadcasting

  • Awaiting re-review

Old

• #3592 - WIP: Add dead branch prune before type inference.

  • bug in parfors related to dead code elimination?

• #3561 - Fixing the boolean copy from data

  • In progress

• #3556 - [WIP] Support for np.trim_zeros

  • in progress

• #3519 - WIP: fix-3457 support of numpy repeat.

• #3468 - Add support for np.clip and ndarray.clip.

  • depends on fix on @overload_method for kwargs

• 3450 - [WIP] generated_jit for CUDA kernels

• 3134 - [WIP] Cfunc x86 abi

  • Needs re-review

• 3046 - Pairwise sum implementation.

• #2999 - Support LowLevelCallable

• #2942 - Fix linkage nature (declspec(dllexport)) of some test functions

• #2894: [WIP] Implement jitclass default constructor arguments.

• #2817: [WIP] Emit LLVM optimization remarks

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4. Next Release: Version 0.43, RC=Feb 26?, Final=March 5?

• Initial dictionary support
• ???