Merge branch 'master' into bugfix/fix-tz-aware-alignment

Author: RobbieKiwi

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v6
+      - uses: actions/download-artifact@v7
         with:
           name: Packages
           path: dist

.github/workflows/test-models.yml

@@ -59,7 +59,7 @@ jobs:
           echo -ne "url: ${CDSAPI_URL}\nkey: ${CDSAPI_TOKEN}\n" > ~/.cdsapirc
           echo "week=$(date +'%Y%U')" >> $GITHUB_ENV # data and cutouts
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         if: env.pinned == 'false'
         with:
           path: |
@@ -74,7 +74,7 @@ jobs:
 
       - name: Cache Conda env
         if: env.pinned == 'false'
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.CONDA }}/envs
           key: conda-pypsa-eur-${{ env.week }}-${{ hashFiles('envs/linux-64.lock.yaml') }}
@@ -101,7 +101,7 @@ jobs:
 
       - name: Upload artifacts
         if: env.pinned == 'false'
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: results-pypsa-eur-${{ matrix.version }}
           path: |

.github/workflows/test.yml

@@ -74,7 +74,7 @@ jobs:
         choco install glpk
 
     - name: Download package
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v7
       with:
         name: Packages
         path: dist
@@ -112,7 +112,7 @@ jobs:
         python-version: 3.12
 
     - name: Download package
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v7
       with:
         name: Packages
         path: dist

CLAUDE.md

@@ -6,7 +6,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ### Running Tests
 ```bash
-# Run all tests
+# Run all tests (excluding GPU tests by default)
 pytest
 
 # Run tests with coverage
@@ -17,8 +17,16 @@ pytest test/test_model.py
 
 # Run a specific test function
 pytest test/test_model.py::test_model_creation
+
+# Run GPU tests (requires GPU hardware and cuPDLPx installation)
+pytest --run-gpu
+
+# Run only GPU tests
+pytest -m gpu --run-gpu
 ```
 
+**GPU Testing**: Tests that require GPU hardware (e.g., cuPDLPx solver) are automatically skipped by default since CI machines typically don't have GPUs. To run GPU tests locally, use the `--run-gpu` flag. The tests are automatically marked with `@pytest.mark.gpu` based on solver capabilities.
+
 ### Linting and Type Checking
 ```bash
 # Run linter (ruff)

README.md

@@ -149,6 +149,7 @@ Fri    0          4
 * [Cplex](https://www.ibm.com/de-de/analytics/cplex-optimizer)
 * [MOSEK](https://www.mosek.com/)
 * [COPT](https://www.shanshu.ai/copt)
+* [cuPDLPx](https://github.com/MIT-Lu-Lab/cuPDLPx)
 
 Note that these do have to be installed by the user separately.