Files
project_6/cccl_upstream/docs/libcudacxx/extended_api/math.rst
muh-bot 2a7ca101d7 feat(cccl): integrate missing CCCL directories — python/, ci/, .agent/, docs/, test/
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
2026-08-07 02:34:33 +00:00

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ReStructuredText

.. _libcudacxx-extended-api-math:
Math
====
.. toctree::
:hidden:
:maxdepth: 1
math/ceil_div
math/round_up
math/round_down
math/ilog
math/ipow
math/pow2
math/isqrt
math/neg
math/uabs
math/fast_mod_div
math/mul_hi
math/sincos
.. list-table::
:widths: 25 45 30 30
:header-rows: 1
* - **Header**
- **Content**
- **CCCL Availability**
- **CUDA Toolkit Availability**
* - :ref:`ceil_div <libcudacxx-extended-api-math-ceil-div>`
- Ceiling division
- CCCL 2.7.0
- CUDA 12.8
* - :ref:`round_up <libcudacxx-extended-api-math-round-up>`
- Round up to the next multiple
- CCCL 3.0.0
- CUDA 13.0
* - :ref:`round_down <libcudacxx-extended-api-math-round-down>`
- Round down to the previous multiple
- CCCL 3.0.0
- CUDA 13.0
* - :ref:`ilog2 <libcudacxx-extended-api-math-ilog>`
- Integer logarithm to the base 2
- CCCL 3.0.0
- CUDA 13.0
* - :ref:`ceil_ilog2 <libcudacxx-extended-api-math-ilog>`
- Integer logarithm to the base 2, rounded up
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`ilog10 <libcudacxx-extended-api-math-ilog>`
- Integer logarithm to the base 10
- CCCL 3.0.0
- CUDA 13.0
* - :ref:`ceil_ilog10 <libcudacxx-extended-api-math-ilog>`
- Integer logarithm to the base 10, rounded up
- CCCL 3.5.0
- CUDA 13.5
* - :ref:`ipow <libcudacxx-extended-api-math-ipow>`
- Integer power
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`is_power_of_two <libcudacxx-extended-api-math-pow2>`
- If the value is a power of two
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`isqrt <libcudacxx-extended-api-math-isqrt>`
- Integer square root
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`neg <libcudacxx-extended-api-math-neg>`
- Integer negation
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`next_power_of_two <libcudacxx-extended-api-math-pow2>`
- Next power of two
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`prev_power_of_two <libcudacxx-extended-api-math-pow2>`
- Previous power of two
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`uabs <libcudacxx-extended-api-math-uabs>`
- Unsigned absolute value
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`fast_mod_div <libcudacxx-extended-api-math-fast-mod-div>`
- Fast Modulo/Division
- CCCL 3.1.0
- CUDA 13.1
* - :ref:`mul_hi <libcudacxx-extended-api-math-mul-hi>`
- Most significant half of the product
- CCCL 3.2.0
- CUDA 13.2
* - :ref:`sincos <libcudacxx-extended-api-math-sincos>`
- Computes sine and cosine of a value at the same time.
- CCCL 3.3.0
- CUDA 13.3