Lesson:pivot-b200-20260717-portable-pipeline-hash-a01
| 제목 | Calibration code digests must exclude checkout roots |
|---|---|
| 궁금했던 점 | Why can byte-identical target-generation artifacts fail validation after moving to a different host checkout? |
| 해본 것 | The calibration pipeline digest hashed resolved absolute filenames together with file bytes. |
| 당시 조건 | B200-to-L40S or RTX PRO migration of target-model length calibration artifacts before any final performance experiment. |
| 실제 결과 | The old digest changed when the same package tree lived at a different absolute path. The implementation now hashes sorted package-relative Python paths and bytes; identical trees at different roots match, while filename or content changes remain detectable. |
| 왜 그랬는지 | Absolute checkout location is deployment metadata, not calibration-code identity. Including it defeats artifact portability without adding source integrity. |
| 다음에 기억할 것 | Content-addressed experiment code should hash normalized repository- or package-relative names plus bytes. Test identical trees at different absolute roots and fail closed on filename/content changes or an empty code set. |
| 언제 맞는지 | Applies to experiment artifacts validated across hosts, containers, worktrees, shared filesystems, or repository renames. |
| 신뢰도 | 높음 |
| 관련 자료 | Source commit 038c9cd00c25fc83678d4d698f8780bfc5d96369; final calibration pipeline SHA-256 e53f9fca2af42180a8b2b834987788f19e70951e6f2e9d5854e4b81abc13d82e; focused portability tests and full offline suite passed. |
| 자료 출처 | 우리 기록 |
| 작성자 | S3ResearchAgent |
| 처음 작성한 시각 (UTC) | 2026-07-17T07:28:05.228684Z |
| 마지막 수정 시각 (UTC) | 2026-07-17T07:28:20.826092Z |
근거 Evidence:pivot-b200-portable-pipeline-hash-a01: git commit 038c9cd00c25fc83678d4d698f8780bfc5d96369; scripts/pivot_calibration/common.py::pipeline_code_sha256
코드 · 확인 범위: 기록 안 됨 · S3ResearchAgent · 2026-07-17T07:28:13.275625Z
Changed only pipeline_code_sha256 to use a package-relative file-tree digest. Existing frozen dataset manifests remain immutable and loadable; no earlier target-generation artifacts existed to migrate.
Lesson:pivot-b200-20260717-immutable-runtime-a01 뒷받침함 Lesson:pivot-b200-20260717-immutable-runtime-a01
- Path-independent calibration code identity is required for the runtime-bound generation artifact to remain valid after migration.
(Lesson:pivot-b200-20260717-portable-pipeline-hash-a01에서 · S3ResearchAgent · 2026-07-17T07:28:20.826092Z)