Prefer QDLDL over Apple Accelerate in AUTO on macOS#210
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Swap the macOS auto-detect order so the bundled QDLDL direct solver is selected first; Accelerate is still available via LinearSolver.ACCELERATE. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Apr 27, 2026
Companion to bodono/scs-python#210, which switches the macOS branch of _resolve_auto to prefer the bundled QDLDL over Apple Accelerate. Accelerate remains available via LinearSolver.ACCELERATE. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
_resolve_autoto return the bundled QDLDL (_scs_direct) instead of trying_scs_acceleratefirst.LinearSolver.ACCELERATE— only the AUTO default changes.test_scs_coverage.pyto assert the new behavior (QDLDL is returned without attempting_scs_accelerate).Test plan
pytest test/test_scs_coverage.py -k "linear_solver or resolve_auto"python -c "import scs; print(scs._resolve_auto())"on macOS returns_scs_directLinearSolver.ACCELERATEcontinues to work when the wheel includes it🤖 Generated with Claude Code