v5.0

Release 5.0 adds new API's to support sorting arrays of custom defined objects and sorting key-value pairs of arrays. We also now have AVX2 acceleration for argsort and argselect methods. Here is a gist of the new features:

• x86-simd-sort now supports an API to sort custom defined C++ objects via object_qsort. Please refer to README file on how to use it. Its performance can vary depending on the definition of the custom class. For the sake of illustration, sorting a simple struct based on one of its members can be up-to 4-5x faster than using std::sort on machines with AVX-512. Refer to the perf section for more details.
• New API keyvalue_qsort to sort a pair of arrays representing key-value pairs (32-bit and 64-bit data types). These are an order of magnitude faster when compared to scalar ways of sorting them.
• AVX2 support for argsort and argselect methods. These have been merged into NumPy and will be available with NumPy v2.0.

What's Changed

• README.md: fix broken link by @rouault in #98
• Improve emulation of AVX2 min/max 64-bit by @r-devulap in #99
• fix numpy CI failures by @r-devulap in #100
• Add key-value sort to runtime dispatch by @r-devulap in #105
• Avoid masks when possible in AVX2 logic by @sterrettm2 in #104
• Add more benchmarks by @r-devulap in #106
• Support key-value sort for 32-bit dtypes by @r-devulap in #108
• Add API to sort array of custom objects by @r-devulap in #103
• Mark explicit template specializations inline by @r-devulap in #112
• BUG: bug fix in avx512_qsort_fp16 by @r-devulap in #113
• CI: build and test on 32-bit linux by @r-devulap in #114
• Support for AVX2 argsort/argselect/key-value sort by @sterrettm2 in #110
• Changes argsort/argselect to use generic networks by @sterrettm2 in #102
• Improve key-value sort performance by @r-devulap in #120
• Add IPP sort to benchmarks by @r-devulap in #121
• Build fix on macOS 64-bit by @r-devulap in #122
• Fix more build issues on macOS by @r-devulap in #123
• Add avx2_vector defintion for size_t on macOS by @r-devulap in #124
• [fix] update link in README.md by @icfaust in #125
• Use uint32_t instead of size_t for object sort by @r-devulap in #126
• Add simple test for objsort by @r-devulap in #128
• Update README with object_qsort by @r-devulap in #130

New Contributors

• @rouault made their first contribution in #98
• @icfaust made their first contribution in #125

Full Changelog: v4.0...v5.0