Merge origin/main into graph-builder-refactor

Author: Andy-Jost

.github/dependabot.yml

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 #
 # SPDX-License-Identifier: Apache-2.0
 

.github/workflows/build-wheel.yml

@@ -462,6 +462,16 @@ jobs:
           cuda-version: ${{ inputs.prev-cuda-version }}
           cuda-path: "./cuda_toolkit_prev"
 
+      - name: Build cuda.core test binaries
+        run: bash ${{ env.CUDA_CORE_TEST_BINARIES_DIR }}/build_test_binaries.sh
+
+      - name: Upload cuda.core test binaries
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: ${{ env.CUDA_CORE_ARTIFACT_NAME }}-test-binaries
+          path: ${{ env.CUDA_CORE_TEST_BINARIES_DIR }}/*.o
+          if-no-files-found: error
+
       - name: Download cuda.bindings build artifacts from the prior branch
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test-wheel-linux.yml

@@ -279,6 +279,19 @@ jobs:
           pwd
           ls -lahR $CUDA_CORE_CYTHON_TESTS_DIR
 
+      - name: Download cuda.core test binaries
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
+        with:
+          name: ${{ env.CUDA_CORE_ARTIFACT_NAME }}-test-binaries
+          path: ${{ env.CUDA_CORE_TEST_BINARIES_DIR }}
+          run-id: ${{ inputs.run-id || github.run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Display structure of downloaded cuda.core test binaries
+        run: |
+          pwd
+          ls -lahR $CUDA_CORE_TEST_BINARIES_DIR
+
       - name: Set up Python ${{ matrix.PY_VER }}
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:

.github/workflows/test-wheel-windows.yml

@@ -259,6 +259,19 @@ jobs:
           Get-Location
           Get-ChildItem -Recurse -Force $env:CUDA_CORE_CYTHON_TESTS_DIR | Select-Object Mode, LastWriteTime, Length, FullName
 
+      - name: Download cuda.core test binaries
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
+        with:
+          name: ${{ env.CUDA_CORE_ARTIFACT_NAME }}-test-binaries
+          path: ${{ env.CUDA_CORE_TEST_BINARIES_DIR }}
+          run-id: ${{ inputs.run-id || github.run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Display structure of downloaded cuda.core test binaries
+        run: |
+          Get-Location
+          Get-ChildItem -Recurse -Force $env:CUDA_CORE_TEST_BINARIES_DIR | Select-Object Mode, LastWriteTime, Length, FullName
+
       - name: Set up Python ${{ matrix.PY_VER }}
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:

.gitignore

@@ -19,6 +19,9 @@ cache_driver
 cache_runtime
 cache_nvrtc
 
+# cuda.core test object fixtures built locally / downloaded as CI artifacts
+cuda_core/tests/test_binaries/*.o
+
 # CUDA Python specific (auto-generated)
 cuda_bindings/cuda/bindings/_bindings/cyruntime.pxd
 cuda_bindings/cuda/bindings/_bindings/cyruntime.pyx

.pre-commit-config.yaml

@@ -32,7 +32,7 @@ repos:
         language: python
         additional_dependencies:
           - https://files.pythonhosted.org/packages/cc/20/ff623b09d963f88bfde16306a54e12ee5ea43e9b597108672ff3a408aad6/pathspec-0.12.1-py3-none-any.whl
-        exclude: '(.*pixi\.lock)|(\.git_archival\.txt)|(.*\.patch$)'
+        exclude: '(.*pixi\.lock)|(\.git_archival\.txt)|(.*\.patch$)|(^cuda_core/cuda/core/_vendored/)'
         args: ["--fix"]
 
       - id: no-markdown-in-docs-source
@@ -111,6 +111,7 @@ repos:
         alias: mypy-cuda-core
         name: mypy-cuda-core
         files: ^cuda_core/cuda/.*\.(py|pyi)$
+        exclude: ^cuda_core/cuda/core/_vendored/
         pass_filenames: false
         args: [--config-file=cuda_core/pyproject.toml, cuda_core/cuda/core]
         additional_dependencies:

AGENTS.md

@@ -113,6 +113,44 @@ repos/{owner}/{repo}/milestones --jq '.[].title'`, and pick the best match.
   end on clarifications unless truly blocked. Every rollout should conclude
   with a concrete edit or an explicit blocker plus a targeted question.
 
+## Test authorship markers
+
+Use pytest markers to make the provenance of newly added unit tests explicit.
+Keep this provenance system minimal: choose from only these three markers.
+Place the marker immediately above each test function. A class-level marker is
+acceptable only when every test method in the class has the same provenance.
+Do not use module-level `pytestmark` for authorship provenance; it is too easy
+to miss in large files and makes later per-test provenance changes ambiguous.
+
+- `@pytest.mark.agent_authored(model="<model>")`: the test was authored by an
+  agent and has not yet been materially reviewed or rewritten by a human.
+  Agents must add this marker when generating new unit tests, for example:
+
+  ```python
+  import pytest
+
+  @pytest.mark.agent_authored(model="gpt-5.5")
+  def test_something():
+      ...
+  ```
+
+- `@pytest.mark.human_reviewed`: a human has materially reviewed or rewritten
+  an agent-authored test. Prefer replacing
+  `@pytest.mark.agent_authored(model="<model>")` with this marker instead of
+  keeping both.
+- `@pytest.mark.human_authored`: the test was authored by a human, or
+  rewritten enough that the authorship is primarily human.
+
+Use at most one authorship marker per test. Treat missing markers as legacy or
+unknown provenance, not as implicit `@pytest.mark.human_authored`. Because
+these are pytest markers, tests can be selected with `pytest -m`, for example
+`pytest -m agent_authored`.
+
+When an agent notices a human adding a new test or materially modifying an
+existing test, suggest adding `@pytest.mark.human_authored` or replacing
+`@pytest.mark.agent_authored(model="<model>")` with
+`@pytest.mark.human_reviewed` as appropriate.
+
 
 # Editing constraints
 

ci/tools/env-vars

@@ -34,6 +34,7 @@ CUDA_CORE_ARTIFACT_BASENAME="cuda-core-python${PYTHON_VERSION_FORMATTED}-${HOST_
   echo "CUDA_CORE_ARTIFACT_NAME=${CUDA_CORE_ARTIFACT_BASENAME}-${SHA}"
   echo "CUDA_CORE_ARTIFACTS_DIR=$(realpath "${REPO_DIR}/cuda_core/dist")"
   echo "CUDA_CORE_CYTHON_TESTS_DIR=$(realpath "${REPO_DIR}/cuda_core/tests/cython")"
+  echo "CUDA_CORE_TEST_BINARIES_DIR=$(realpath "${REPO_DIR}/cuda_core/tests/test_binaries")"
   echo "PYTHON_VERSION_FORMATTED=${PYTHON_VERSION_FORMATTED}"
 } >> $GITHUB_ENV
 

ci/tools/tests/test_fetch_ctk_redistrib.py

@@ -44,7 +44,6 @@ subpackage in the `cuda-python` monorepo.
   - run: `pytest tests/cython/`
 - **Examples**: example coverage is pytest-based under `examples/`.
 - **Benchmarks**: run with `pytest --benchmark-only benchmarks/` when needed.
-- **Orchestrated run**: from repo root, `scripts/run_tests.sh bindings`.
 
 ## Build and environment notes