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Ran 30 Jun 2026 01:02AM UTC

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Build # 28413006196

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push

github

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web-flow

Commit Message

Add optional JAX backend, migrate Poetry->uv, and benchmark JAX vs NumPy (#19)

JAX backend: optional backend="jax" (Literal, default "numpy") routing array ops
through numpy/jax.numpy so per-fold training_XTX/XTY/XTX_XTY/statistics trace under
jax.jit and batch over folds with jax.vmap on CPU/GPU/TPU. Trace-safe (tracer-gated
raises keyed on val_indices, maximum/where std clamp, auto x64); numpy backend
byte-identical and perf-neutral. Type hints admit jax values (FloatDType via a
TYPE_CHECKING npt.DTypeLike alias). Tests parametrized over both backends + jit/vmap
trace tests + degenerate-fold + jax-absent ImportError.

Tooling: migrate Poetry->uv (PEP 621 [project], hatchling, PEP 735 dependency-groups;
uv.lock replaces poetry.lock; ruff replaces flake8 for the build lint); version
3.1.6 -> 3.2.0.

Benchmarks: optional jax backend + JAX execution-mode variants (no-/cold-/warm-JIT,
CPU/GPU); two new multi-threaded CVMatrix-only figures (NumPy vs warm JAX; JIT modes).

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