Forward-merge release/26.10 into main - #8582
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…8529) ## Summary Track the coordinated migration of stream APIs and call sites from `rmm::cuda_stream_view` to CCCL's `cuda::stream_ref`. This propagates `cuda::stream_ref` through RMM containers and memory resources, RAFT resource and handle APIs, downstream C++ interfaces, Python/Cython bindings, benchmarks, tests, and documentation. This migrates affected cuML C++ and Python/Cython stream interfaces and adapts CUDA, Thrust, RAFT legacy, and cuML raw-stream boundaries. Depends on rapidsai/rmm#2372 and NVIDIA/raft#3129. Tracked in rapidsai/build-planning#318. ## Migrations - Pass `cuda::stream_ref` through stream pools, resource accessors, conditionals, and downstream APIs without converting to `rmm::cuda_stream_view` - Use `cuda::stream_ref` constructions for default/legacy/per-thread streams - `rmm::cuda_stream_default` ➡️ `cuda::stream_ref{cudaStream_t{cudaStreamDefault}}` - `rmm::cuda_stream_legacy` ➡️ `cuda::stream_ref{cudaStreamLegacy}` - `rmm::cuda_stream_per_thread` ➡️ `cuda::stream_ref{cudaStreamPerThread}` - Use `.get()` when calling an API that requires a raw `cudaStream_t`, including CUDA runtime, library, CUB, and legacy API boundaries (previously `rmm::cuda_stream_view` used `value()`) - Use `.sync()` when synchronizing a `cuda::stream_ref` (previously `rmm::cuda_stream_view` used `synchronize()`) - Update Cython declarations and call sites to pass stream references directly where supported Authors: - Bradley Dice (https://github.com/bdice) - Simon Adorf (https://github.com/csadorf) Approvers: - Philip Hyunsu Cho (https://github.com/chyunsu3) - Simon Adorf (https://github.com/csadorf) URL: #8529
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SUCCESS - forward-merge complete. |
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Forward-merge triggered by push to release/26.10 that creates a PR to keep main up-to-date. If this PR is unable to be immediately merged due to conflicts, it will remain open for the team to manually merge. See forward-merger docs for more info.