Merge branch 'master' into pre-commit-ci-update-config

Author: FBumann

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v6
+      - uses: actions/download-artifact@v8
         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@v7
         with:
           name: results-pypsa-eur-${{ matrix.version }}
           path: |

.github/workflows/test.yml

@@ -64,7 +64,7 @@ jobs:
 
     - name: Set up windows package manager
       if: matrix.os == 'windows-latest'
-      uses: crazy-max/ghaction-chocolatey@v3
+      uses: crazy-max/ghaction-chocolatey@v4
       with:
           args: -h
 
@@ -74,7 +74,7 @@ jobs:
         choco install glpk
 
     - name: Download package
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v8
       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@v8
       with:
         name: Packages
         path: dist

.gitignore

@@ -50,3 +50,4 @@ benchmark/scripts/leftovers/
 # direnv
 .envrc
 AGENTS.md
+coverage.xml

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)
@@ -102,27 +110,6 @@ When modifying the codebase, maintain consistency with these patterns and ensure
 * Always create a feature branch for new features or bug fixes.
 * Use the github cli (gh) to interact with the Github repository.
 
-### GitHub Claude Code Integration
-
-This repository includes Claude Code GitHub Actions for automated assistance:
-
-1. **Automated PR Reviews** (`claude-code-review.yml`):
-   - Automatically reviews PRs only when first created (opened)
-   - Subsequent reviews require manual `@claude` mention
-   - Focuses on Python best practices, xarray patterns, and optimization correctness
-   - Can run tests and linting as part of the review
-   - **Skip initial review by**: Adding `[skip-review]` or `[WIP]` to PR title, or using draft PRs
-
-2. **Manual Claude Assistance** (`claude.yml`):
-   - Trigger by mentioning `@claude` in any:
-     - Issue comments
-     - Pull request comments
-     - Pull request reviews
-     - New issue body or title
-   - Claude can help with bug fixes, feature implementation, code explanations, etc.
-
-**Note**: Both workflows require the `ANTHROPIC_API_KEY` secret to be configured in the repository settings.
-
 
 ## Development Guidelines
 
@@ -132,3 +119,4 @@ This repository includes Claude Code GitHub Actions for automated assistance:
 4. Use type hints and mypy for type checking.
 5. Always write tests into the `test` directory, following the naming convention `test_*.py`.
 6. Always write temporary and non git-tracked code in the `dev-scripts` directory.
+7. In test scripts use linopy assertions from the testing.py module where useful (assert_linequal, assert_varequal, etc.)

README.md

@@ -143,12 +143,14 @@ Fri    0          4
 
 * [Cbc](https://projects.coin-or.org/Cbc)
 * [GLPK](https://www.gnu.org/software/glpk/)
-* [HiGHS](https://www.maths.ed.ac.uk/hall/HiGHS/)
+* [HiGHS](https://highs.dev/)
 * [Gurobi](https://www.gurobi.com/)
 * [Xpress](https://www.fico.com/en/products/fico-xpress-solver)
 * [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)
+* [Knitro](https://www.artelys.com/solvers/knitro/)
 
 Note that these do have to be installed by the user separately.