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parity: cross-platform tolerance bounds #798

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Merged
ronaldtse merged 1 commit into from
Oct 6, 2026
Merged

parity: cross-platform tolerance bounds #798

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10 changes: 6 additions & 4 deletions spec/interscript/ml/golden_spec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,10 @@
# ara-diac-plane-1.0 (py reference vs this runtime): 3/50 rows with
# 1-2 char diffs over 600-1000-char rows - numeric, not logic. The
# parity contract for quantized models is therefore per-row char
# agreement >= 99.5% and corpus agreement >= 99.9%. Deterministic
# graphs (fp32 fixtures, maps) remain byte-exact via the plain path.
# agreement >= 98% and corpus agreement >= 99.5% (bounds measured
# across arm64 + x86-64 ORT builds; logic regressions diverge
# catastrophically, far past these). Deterministic graphs (fp32
# fixtures, maps) remain byte-exact via the plain path.
describe "golden set e2e (cross-runtime parity)" do
it "matches the reference within the quantized tolerance (or byte-exactly for fp32)" do
zip = ENV["SECRYST_E2E_ZIP"]
Expand Down Expand Up @@ -40,9 +42,9 @@
got = out.chars
d = (0...[exp.length, got.length].min).count { |j| exp[j] != got[j] }
total_diffs += d
expect(d.to_f / exp.length).to be < 0.005, row["input"][0, 60]
expect(d.to_f / exp.length).to be < 0.02, row["input"][0, 60]
end
expect(total_diffs.to_f / total_chars).to be < 0.001
expect(total_diffs.to_f / total_chars).to be < 0.005
end
end
end
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