Gahow Wang
3366f30c4d
parity_dump.rs (#[ignore] fixture generator) dumps the model's exact weights, ids, forward logits, loss, and per-param grads after one backward. parity.py rebuilds the IDENTICAL model in PyTorch (same x@W convention, RoPE rotate_half pos=row, RMSNorm, SwiGLU, causal SDPA), runs fwd+bwd, and compares logits + every grad within rtol. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>