Document Wave 1-5 numerical-alignment investigation results in
tests/local_tests/magi-human.md (417 lines total):
- OQ-6: DiT bf16 noise-floor drift (diff_max=0.057 at atol=0.03);
pipeline compounding at 4 steps (18.85x ratio vs 1-step baseline);
root cause under investigation via _debug_magi_human_block_parity.py
- OQ-7: Wan VAE fp32 op-order drift (z*std+mean vs z/(1/std)+mean);
shared Wan-family bug, deferred pending upstream fix
Also records Wave 1-5 methodology: loader fix, per-side log emission,
tolerance tightening, scheduler split, and bisect confirmation that
the compounding bug predates Wave 1.
tests/local_tests/ holds local-only parity, smoke, and component tests
organized by model family (e.g. tests/local_tests/ltx2/,
tests/local_tests/stable_audio/). They typically require a checked-out
reference repo and/or model weights and are skipped in CI; see each family's
README.md for setup. The top-level
tests/local_tests/README.md is the family index.
The CI-backed test suite still lives in fastvideo/tests/.
SolitaryThinker
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