20 lines
905 B
Markdown
20 lines
905 B
Markdown
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# GPU Feature Parity Contract V1
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Status: `accepted`.
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The contract requires exact structure and NaN placement, exact decision/state-transition conditions, and per-family measured numeric limits. Numeric drift is never accepted when it changes a decision.
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## Family Limits
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- `bollinger`: max abs 1.8262653611600399e-09, max rel 2.9899920253705082e-14, max ULP 251, MAE 6.4296249767118589e-10.
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- `supertrend`: max abs 0, max rel 0, max ULP 0, MAE 0.
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- `donchian`: max abs 0, max rel 0, max ULP 0, MAE 0.
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- `keltner`: max abs 2.9103830456733704e-11, max rel 4.2852960505130111e-16, max ULP 2, MAE 9.9198121522888284e-16.
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- `psar`: max abs 0, max rel 0, max ULP 0, MAE 0.
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## Gates
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- Shapes, dtypes, and NaN masks must match exactly.
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- Price-comparison signs, crossings above/below, and state-transition conditions must match exactly.
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- Bollinger and Keltner upper/lower relationships must match exactly.
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