Sparse-checkout from NVIDIA/cccl main branch to complete cccl_upstream: Added: - python/cuda_cccl/ (226 files) — Python bindings for device-level algorithms Critical for muh toolchain: cuda.compute.reduce_into, scan, radix_sort, etc. Includes 204 .py files with full test coverage for all 27 algorithms - ci/ (163 files) — Build/test infrastructure build_cub.sh, test_cub.sh, build_and_test_targets.sh, matrix.yaml Directly maps to our [INFRA-CI] and [INFRA-BUILD] items - .agent/skills/ (7 files) — NVIDIA's own agent skills for CCCL cccl-style/SKILL.md, cccl-test/SKILL.md, sass-diff/SKILL.md - docs/ (491 files) — Official CCCL documentation CI references, CMake guides, Python compute docs, libcudacxx PTX docs - test/ (12 files) — Top-level integration tests (cuda_smoke, stdpar) - Root configs: .clang-format, .clang-tidy, CONTRIBUTING.md, pyproject.toml - CLAUDE.md symlink → AGENTS.md (NVIDIA's standard) cccl_upstream now mirrors full NVIDIA/cccl structure: Before: 42M (cub + thrust + libcudacxx + cudax + c + examples + benchmarks) After: 53M (+python +ci +docs +.agent +test +configs) This completes the CCCL base needed for: - [muh-bench] items: ci/util/build_and_test_targets.sh for targeted builds - [CCCL-verify] items: python/cuda_cccl/tests/ as reference implementations - [CCCL-test] items: ci/test_cub.sh, ci/test_thrust.sh - Agent workflow: .agent/skills/ for consistent style and test patterns
138 lines
4.5 KiB
ReStructuredText
138 lines
4.5 KiB
ReStructuredText
.. _libcudacxx-extended-api-synchronization:
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Synchronization Primitives
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===========================
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.. toctree::
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:hidden:
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:maxdepth: 1
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synchronization_primitives/atomic
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synchronization_primitives/atomic_ref
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synchronization_primitives/latch
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synchronization_primitives/barrier
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synchronization_primitives/counting_semaphore
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synchronization_primitives/binary_semaphore
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synchronization_primitives/pipeline
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.. rubric:: Atomics
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.. list-table::
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:widths: 25 45 30 30
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:header-rows: 1
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* - **Header**
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- **Content**
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- **CCCL Availability**
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- **CUDA Toolkit Availability**
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* - :ref:`cuda::atomic <libcudacxx-extended-api-synchronization-atomic>`
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- System-wide `std::atomic <https://en.cppreference.com/w/cpp/atomic/atomic>`_ objects and operations
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- libcu++ 1.0.0 / CCCL 2.0.0
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- CUDA 10.2
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* - :ref:`cuda::atomic_ref <libcudacxx-extended-api-synchronization-atomic-ref>`
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- System-wide `std::atomic_ref <https://en.cppreference.com/w/cpp/atomic/atomic_ref>`_ objects and operations
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- libcu++ 1.7.0 / CCCL 2.0.0
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- CUDA 11.6
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.. rubric:: Latches
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.. list-table::
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:widths: 25 45 30 30
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:header-rows: 1
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* - **Header**
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- **Content**
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- **CCCL Availability**
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- **CUDA Toolkit Availability**
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* - :ref:`cuda::latch <libcudacxx-extended-api-synchronization-latch>`
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- System-wide `std::latch <https://en.cppreference.com/w/cpp/thread/latch>`_ single-phase asynchronous
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thread coordination mechanism
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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.. rubric:: Barriers
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.. list-table::
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:widths: 25 45 30 30
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:header-rows: 1
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* - **Header**
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- **Content**
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- **CCCL Availability**
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- **CUDA Toolkit Availability**
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* - :ref:`cuda::barrier <libcudacxx-extended-api-synchronization-barrier>`
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- System wide `std::barrier <https://en.cppreference.com/w/cpp/thread/barrier>`_ multi-phase asynchronous
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thread coordination mechanism
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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.. rubric:: Semaphores
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.. list-table::
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:widths: 25 45 30 30
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:header-rows: 1
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* - **Header**
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- **Content**
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- **CCCL Availability**
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- **CUDA Toolkit Availability**
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* - :ref:`cuda::counting_semaphore <libcudacxx-extended-api-synchronization-counting-semaphore>`
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- System wide `std::counting_semaphore <https://en.cppreference.com/w/cpp/thread/counting_semaphore>`_
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primitive for constraining concurrent access
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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* - :ref:`cuda::binary_semaphore <libcudacxx-extended-api-synchronization-counting-semaphore>`
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- System wide `std::binary_semaphore <https://en.cppreference.com/w/cpp/thread/counting_semaphore>`_
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primitive for mutual exclusion
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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.. rubric:: Pipelines
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The pipeline library is included in the CUDA Toolkit, but is not part of the open source libcu++ distribution.
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.. list-table::
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:widths: 25 45 30 30
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:header-rows: 1
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* - **Header**
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- **Content**
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- **CCCL Availability**
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- **CUDA Toolkit Availability**
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* - :ref:`cuda::pipeline <libcudacxx-extended-api-synchronization-pipeline>`
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- Coordination mechanism for sequencing asynchronous operations
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- libcu++ 1.2.0 / CCCL 2.0.0
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- CUDA 11.1
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* - :ref:`cuda::pipeline_shared_state <libcudacxx-extended-api-synchronization-pipeline-pipeline-shared-state>`
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- :ref:`cuda::pipeline <libcudacxx-extended-api-synchronization-pipeline>` shared state object
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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* - :ref:`cuda::pipeline_role <libcudacxx-extended-api-synchronization-pipeline-pipeline-role>`
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- Defines producer/consumer role for a thread participating in a *pipeline*
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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* - :ref:`cuda::make_pipeline <libcudacxx-extended-api-synchronization-pipeline-pipeline-role>`
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- Creates a :ref:`cuda::pipeline <libcudacxx-extended-api-synchronization-pipeline>`
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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* - :ref:`cuda::pipeline_consumer_wait_prior <libcudacxx-extended-api-synchronization-pipeline-pipeline-consumer-wait-prior>`
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- Blocks the current thread until all operations committed up to a prior *pipeline stage* complete
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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* - :ref:`cuda::pipeline_producer_commit <libcudacxx-extended-api-synchronization-pipeline-pipeline-producer-commit>`
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- Binds operations previously issued by the current thread to a :ref:`cuda::barrier <libcudacxx-extended-api-synchronization-barrier>`
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- libcu++ 1.1.0 / CCCL 2.0.0
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- CUDA 11.0
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