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conformance: v0 vector packs (GF16, FP8 E4M3FN/E5M2, MXFP4 E2M1, bf16 golden) + index - #1054

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conformance: v0 vector packs (GF16, FP8 E4M3FN/E5M2, MXFP4 E2M1, bf16 golden) + index#1054
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@gHashTag gHashTag commented Jun 7, 2026

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Closes #1055

Adds bit-precise conformance vector packs under conformance/vectors/, in a single shared row schema so one differ runs across all formats.

Packs:

  • GF16 (21 vectors) -- anchor pack, carries phi / inv_phi / phi^2 / inv_phi^2 / identity_sum=3.0
  • FP8 E4M3FN (14) -- no inf, single NaN, max finite 448.0; overflow saturates
  • FP8 E5M2 (16) -- inf + NaN, max finite 57344.0; overflow to +/-Inf
  • MXFP4 E2M1 (16) -- full 16-code grid; clamp +/-7 sits one step above grid max 6.0
  • bf16 golden (8 + golden_accumulation) -- sequential vs pairwise reduction vs f64 golden

All packs: anchor identity phi^2 + 1/phi^2 = 3 exact, ASCII-only, abs_error honest (nonzero only for non-representable inputs). Generators included for byte-identical reproduction. README.md indexes formats, anchor bits, max finite, overflow policy, and SHA-256 of every pack. docs/NOW.md updated. Context preprint: arXiv:2606.05017.

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Generated at: 2026-06-07 14:02:37 UTC

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…bf16 golden) + index

Bit-precise conformance vectors in a shared row schema, one differ across all
formats. Anchor identity phi^2 + 1/phi^2 = 3 exact in every pack. ASCII-only.
abs_error honest (nonzero only for non-representable inputs). Generators
included for byte-identical reproduction. Context: arXiv:2606.05017.

Closes #1055
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gHashTag force-pushed the conformance-vector-packs-v0 branch from 7132487 to 1d430c4 Compare June 7, 2026 14:07
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📓 NotebookLM Notebook linked to this PR

This notebook contains session context, decisions, and artifacts for this work.

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Generated at: 2026-06-07 14:07:51 UTC

Summary

Status Count
Total Open PRs 9
PRs with Failing Checks 9
PRs with All Checks Green 0
READY 0
FAILING 9
PENDING 0

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gHashTag merged commit 00e92fe into master Jun 7, 2026
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conformance: ship v0 numeric-format vector packs (FP8 E4M3FN/E5M2, MXFP4 E2M1, bf16 golden) + shared-schema index

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