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ywkang 168b0c89f0 ADR: translate adr-ko/ to Korean, fix ADR-0013 slug, refine Status check

Follow-up to the bilingual-structure commit: docs/adr-ko/ now holds
only Korean versions (24 files translated from English placeholders),
ADR-0013 slug uses kebab-case in both folders, and the verify tool
allows translated parenthetical commentary in the Status block.

- Translate 24 English files in docs/adr-ko/ to Korean. The previous
  bilingual-structure commit had left these as English copies because
  their source content was already English; this commit fulfills the
  policy that docs/adr-ko/ contains only Korean.
- Rename ADR-0013 in both adr/ and adr-ko/ from
  ver-verification_strategy.md to ver-verification-strategy.md
  (kebab-case consistency with other ADRs).
- CLAUDE.md (ADR Translation Discipline): clarify that only the
  Status lifecycle keyword (Accepted / Proposed / Stub / Draft /
  Superseded by ADR-NNNN / Merged into ADR-NNNN) must match across
  EN and KO; parenthetical commentary and trailing list items may be
  translated.
- tools/verify_adr_lang_pairs.py: replace byte-equal Status check
  with normalize_status_keyword() which strips parenthetical
  commentary and takes only the first non-empty line.
- tests/test_verify_adr_lang_pairs.py: update existing test names,
  add coverage for translated parenthetical, translated trailing
  list, and Superseded-by-NNNN keyword equality.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-20 08:17:56 -07:00

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ADR-0013: Verification Strategy and Phase 1 Test Plan

Status

Accepted

Context

KernBench is a system-level simulator whose correctness is defined by:

adherence to SPEC-defined invariants,
determinism and debuggability,
explicit modeling of routing and latency.

Given the evolving implementation, we need a stable verification strategy that prevents architectural drift while allowing incremental development.

This ADR defines the Phase 1 verification plan and what constitutes "correct behavior" for early implementations.

Decision

D1. Verification is contract-based

Verification MUST be derived from:

SPEC requirements,
accepted ADRs.

Tests MUST validate architectural contracts, not incidental implementation details.

D2. Phase 1 verification scope

Phase 1 verification focuses on:

message contract validity (ADR-0012),
routing and fan-out semantics at the IO_CPU boundary (ADR-0009),
PA-first memory addressing and shard tagging (ADR-0011),
core latency and trace invariants (SPEC 0.1, R2).

Microarchitectural accuracy, bandwidth contention, and cycle-level behavior are explicitly out of scope in Phase 1.

D3. Required Phase 1 verification cases

The following verification cases MUST be supported by the implementation:

V1. Message schema validation

KernelLaunch requests missing (sip, cube, pe) in any tensor shard MUST be rejected.
MemoryWrite/MemoryRead requests missing destination/source placement tags MUST be rejected.
Completion results MUST follow the ok / error_code / error_message contract.

V2. IO_CPU fan-out and aggregation

Given:

a topology with one SIP, one CUBE, and two PEs,
a KernelLaunch request containing two tensor shards targeting different PEs,

The system MUST:

submit a single KernelLaunch to IO_CPU,
fan-out work internally to both PEs,
aggregate completion and return a single deterministic completion to the host.

V3. Latency and trace invariants

For any valid request:

the hop-by-hop trace MUST be non-empty,
total latency MUST be greater than zero,
repeated runs with identical inputs MUST produce identical traces.

V4. Topology independence and cross-domain coverage

Verification cases MUST pass for multiple topology shapes, including:

minimal: (1 SIP, 1 CUBE, 1 PE)
multi-PE: (1 SIP, 1 CUBE, N PEs)
multi-CUBE within a SIP: (1 SIP, M CUBEs, ≥1 PE per CUBE)
multi-SIP tray: (K SIPs, ≥1 CUBE per SIP, ≥1 PE per CUBE)

For multi-CUBE and multi-SIP topologies, Phase 1 verification focuses on:

explicit connectivity (required links exist),
deterministic routing and control-path traversal,
non-empty traces and latency > 0 for representative cross-domain requests (inter-CUBE and inter-SIP paths).

Tests MUST NOT hardcode topology sizes, node ids, or link counts. Instead, tests MUST derive expectations from the compiled topology metadata

D4. Phase 1 artifacts

Phase 1 MAY include:

verification-only test code,
topology fixtures,
trace inspection utilities.

Phase 1 MUST NOT require:

production code changes solely to satisfy tests,
weakening or removing tests to allow progress.

D5. Phase 2 enforcement

Phase 2 (Apply) MUST:

run the Phase 1 verification cases,
rollback all changes if any verification fails,
preserve tests as authoritative contracts.

Consequences

Architectural correctness is enforced early.
Tests serve as executable documentation of system behavior.
Implementation remains flexible without losing rigor.

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