Add free-threading (no-GIL) support for Python 3.13t+#175

Merged

bodono merged 18 commits intomasterfrom

Apr 17, 2026

Commits on Apr 17, 2026

Add free-threading (no-GIL) support for Python 3.13t+

bodono
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claude
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Fix free-threading CI: create venv before installing packages

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Fix free-threading CI: install build deps for --no-build-isolation

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Fix free-threading CI: use build isolation instead of --no-build-isolation

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Fix free-threading CI: install pytest-timeout for --timeout flag

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Address free-threading review feedback and make all tests thread-safe

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Fix thread-safe signal handling and link pthreads

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Set OPENBLAS_NUM_THREADS=1 for TSan CI

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Add ASan CI job via sanitizer matrix

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Set sanitizer env vars before build step

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Move sanitizer suppressions to test/, add LSan suppressions

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Stabilize Accelerate backend tests
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Keep Accelerate random-problem tests deterministic
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Add faulthandler_exit_on_timeout and simplify CI pytest flags

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Address review: update FT classifier, drop cibuildwheel enable, cleanup

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Drop re-init concurrency test, document construction as thread-local

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Use LinearSolver enum in test_concurrent_direct_and_indirect

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Mark test_resolve_auto_* as thread_unsafe

bodono
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