[MRG] Debug doc on master, speedup wheels with ARM runners and add tests for Python 3.14

.circleci/config.yml

@@ -8,6 +8,10 @@ jobs:
       resource_class: large
       steps:
         - checkout
+        - run:
+            name: Update submodules
+            command: |
+              git submodule update --init --recursive
         - run:
             name: Set BASH_ENV
             command: |

.github/workflows/build_tests.yml

@@ -31,9 +31,9 @@ jobs:
       with:
         submodules: true
     # Install Python & Packages
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v6
       with:
-        python-version: "3.10"
+        python-version: "3.14"
     - run: which python
     - name: Lint with pre-commit
       run: |
@@ -51,7 +51,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.12"
+        python-version: "3.14"
     - name: Build from source
       run: |
         python -m pip install --upgrade pip setuptools wheel
@@ -66,7 +66,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.11", "3.12", "3.13", "3.14"]
 
     steps:
     - name: Free Disk Space (Ubuntu)
@@ -79,7 +79,7 @@ jobs:
         submodules: true
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
@@ -112,7 +112,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.13"
+        python-version: "3.14"
         cache: 'pip'
     - name: Install dependencies
       run: |
@@ -125,14 +125,39 @@ jobs:
       run: |
         python -m pytest --durations=20 -v test/ ot/ --color=yes --cov=./ --cov-report=xml
 
+  # linux-minimal-deps-ft:
+
+  #   runs-on: ubuntu-latest
+  #   if: "!contains(github.event.head_commit.message, 'no ci')"
+  #   steps:
+  #   - uses: actions/checkout@v4
+  #     with:
+  #       submodules: true
+
+  #   - name: Set up Python
+  #     uses: actions/setup-python@v5
+  #     with:
+  #       python-version: "3.14t"
+  #       cache: 'pip'
+  #   - name: Install dependencies
+  #     run: |
+  #       python -m pip install --upgrade pip setuptools
+  #       pip install pytest pytest-cov
+  #   - name: Install POT
+  #     run: |
+  #       pip install -e .
+  #   - name: Run tests
+  #     run: |
+  #       python -m pytest --durations=20 -v test/ ot/ --color=yes --cov=./ --cov-report=xml
+
   macos:
      runs-on: ${{ matrix.os }}
      if: "!contains(github.event.head_commit.message, 'no ci')"
      strategy:
        max-parallel: 4
        matrix:
          os: [macos-latest]
-         python-version: ["3.12"]
+         python-version: ["3.13"]
 
      steps:
      - uses: actions/checkout@v4
@@ -162,7 +187,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.13"]
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/build_wheels.yml

@@ -15,7 +15,7 @@ jobs:
     if: "contains(github.event.head_commit.message, 'build wheels')"
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest, windows-latest]
 
     steps:
     - uses: actions/checkout@v4
@@ -36,7 +36,7 @@ jobs:
 
     - name: Build wheels
       env:
-        CIBW_SKIP: "pp*-win* pp*-macosx* cp2* pp* cp36* cp37* cp38* cp*musl* *i686" # remove pypy on mac and win (wrong version)
+        CIBW_SKIP: "cp38* cp*musl* *i686 *win32" # remove pypy on mac and win (wrong version)
       run: |
         python -m cibuildwheel --output-dir wheelhouse
 
@@ -46,47 +46,3 @@ jobs:
         path: ./wheelhouse
 
 
-  build_all_wheels:
-    name: ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    if: "contains(github.event.head_commit.message, 'build all wheels')"
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: true
-    - name: Set up Python 3.10
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3.11"
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-
-    - name: Install cibuildwheel
-      run: |
-        python -m pip install cibuildwheel==3.1.4
-
-    - name: Set up QEMU
-      if: runner.os == 'Linux'
-      uses: docker/setup-qemu-action@v1
-      with:
-        platforms: all
-
-    - name: Build wheels
-      env:
-        CIBW_SKIP: "pp*-win* pp*-macosx* cp2* pp* cp*musl* *i686" # remove pypy on mac and win (wrong version)
-        CIBW_ARCHS_LINUX: auto aarch64 # force aarch64 with QEMU
-        CIBW_ARCHS_MACOS: x86_64 universal2 arm64
-      run: |
-        python -m cibuildwheel --output-dir wheelhouse
-
-    - uses: actions/upload-artifact@v4
-      with:
-        name: wheels-${{ strategy.job-index }}
-        path: ./wheelhouse
-

.github/workflows/build_wheels_weekly.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest, windows-latest]
 
     steps:
     - uses: actions/checkout@v4
@@ -33,16 +33,9 @@ jobs:
       run: |
         python -m pip install cibuildwheel==3.1.4
 
-    - name: Set up QEMU
-      if: runner.os == 'Linux'
-      uses: docker/setup-qemu-action@v1
-      with:
-        platforms: all
-
     - name: Build wheels
       env:
-        CIBW_SKIP: "pp*-win* pp*-macosx* cp2* pp* cp*musl* cp36* cp37* cp38* *i686" # remove pypy on mac and win (wrong version)
-        CIBW_ARCHS_LINUX: auto aarch64 # force aarch64 with QEMU
+        CIBW_SKIP: "cp*musl* cp38* *i686 *win32" # remove pypy on mac and win (wrong version)
         CIBW_ARCHS_MACOS: x86_64 universal2 arm64
       run: |
         python -m cibuildwheel --output-dir wheelhouse

RELEASES.md

@@ -26,6 +26,7 @@ This new release adds support for sparse cost matrices and a new lazy EMD solver
 - Add cost functions between linear operators following  
   [A Spectral-Grassmann Wasserstein metric for operator representations of dynamical systems](https://arxiv.org/pdf/2509.24920),  
   implemented in `ot.sgot` (PR #792)
+- Build wheels on ubuntu ARM to avoid QEMU emulation (PR #818)
 
 #### Closed issues
 
@@ -42,6 +43,7 @@ This new release adds support for sparse cost matrices and a new lazy EMD solver
 - Reverting the openmp fix on macOS (PR #789) for macOS (PR #797)
 - Align documentation build dependencies and doc extras (PR #801)
 - Debug Debug linux test core dump (PR #815)
+- Fix documentation build on master with submodules (PR #818)
 
 ## 0.9.6.post1
 

requirements_all.txt

@@ -8,7 +8,7 @@ scikit-learn
 torch<=2.11
 jax
 jaxlib
-tensorflow
+tensorflow; python_version < '3.14'
 pytest
 torch_geometric
 cvxpy