Add WarpBitonicTopK#9281
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- add a new warp-wide sorting primitive that implements a bitonic sorting network - add tests and benchmarks for it - add device-side benchmark utilities
- remove anonymous namespace - implement has_native_shfl_v as variable templates - replace #pragma unroll with _CCCL_PRAGMA_UNROLL_FULL()
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Description
Add
WarpBitonicTopKwhich is a warp-wide top-k (WarpTopK), a feature listed in in #5673It is based on
WarpBitonicSortfrom #8391.The output guarantees are (1) deterministic (2) unstable sorted.
Tests and benchmarks are also added.