Merge branch 'main' into issue-435-numbers-real

Author: RahilJain1366

.github/actionlint.yaml

@@ -0,0 +1,46 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Summary: configure actionlint (https://github.com/rhysd/actionlint) to
+# recognize action runner names/labels that we use.
+
+self-hosted-runner:
+  labels:
+    # Defined in Quantumlib org.
+    - ubuntu-22.04-arm64-2-core
+    - ubuntu-22.04-arm64-8-core
+    - ubuntu-22.04-arm64-16-core
+
+    - ubuntu-22.04-x64-2-core
+    - ubuntu-22.04-x64-8-core
+    - ubuntu-22.04-x64-16-core
+
+    - ubuntu-24.04-arm64-2-core
+    - ubuntu-24.04-arm64-8-core
+    - ubuntu-24.04-arm64-16-core
+
+    - ubuntu-24.04-x64-2-core
+    - ubuntu-24.04-x64-8-core
+    - ubuntu-24.04-x64-16-core
+
+    - windows-2022-x64-8-core
+    - windows-2025-x64-8-core
+    - windows-2025-x64-16-core
+
+    # From https://github.com/actions/partner-runner-images
+    - ubuntu-24.04-arm
+
+    # New from GitHub (late 2025) but currently not known by actionlint.
+    # https://docs.github.com/en/actions/reference/runners/github-hosted-runners
+    - ubuntu-slim

.github/workflows/ci.yaml

@@ -58,7 +58,7 @@ env:
 jobs:
   pytest:
     name: Run Python tests
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04-x64-8-core
     timeout-minutes: 15
     strategy:
       matrix:
@@ -92,7 +92,7 @@ jobs:
           # OMP_NUM_THREADS: PySCF's poor OpenMP performance slows down QCQMC tests.
           # RECIRQ_IMPORT_FAILSAFE: skip tests on unsupported Cirq configurations.
           export OMP_NUM_THREADS=1
-          RECIRQ_IMPORT_FAILSAFE=y pytest -v --skipslow
+          RECIRQ_IMPORT_FAILSAFE=y pytest -n logical -v --skipslow
 
   pylint:
     name: Run Python linters
@@ -144,3 +144,21 @@ jobs:
       - name: Check notebook formatting
         run: |
           dev_tools/nbformat
+
+  yaml-lint:
+    name: YAML lint checks
+    runs-on: ubuntu-slim
+    timeout-minutes: 15
+    steps:
+      - name: Check out a copy of the git repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        with:
+          fetch-depth: 0
+
+      - name: Install yamllint
+        run: |
+          sudo apt-get update
+          sudo apt-get install --no-install-recommends -y yamllint
+
+      - name: Lint the YAML files
+        run: yamllint -f github .

.github/workflows/osv-scanner.yaml

@@ -12,7 +12,7 @@
     'current': '~=1.4.0',
     'next': '>=1.5.0',
 }
-"""Give names to relative Cirq versions so CI can have consistent names while versions 
+"""Give names to relative Cirq versions so CI can have consistent names while versions
 get incremented."""
 
 
@@ -76,7 +76,7 @@ def main(*, out_fn: str = 'ci-requirements.txt', relative_cirq_version: str = 'c
 
     extras_require = [
         'otoc', 'qaoa', 'optimize', 'hfvqe', 'fermi_hubbard', 'qml_lfe',
-        'seniority_zero', 'qcqmc'
+        'seniority_zero', 'qcqmc', 'contextuality'
     ]
     extras_require = {
         r: _parse_requirements(pathlib.Path(REPO_DIR / f'recirq/{r}/extra-requirements.txt'))

dev_tools/write-ci-requirements.py

@@ -0,0 +1,2 @@
+stim
+stimcirq