Documents four cross-cutting surfaces that previously had no ADR backing,
each surfaced as a G4 candidate by /report:
- 0046 prog-tl-context-contract: the kernel-side tl.* API. Enumerates
all primitives (ref/load/store/dot/composite/math/reduction/IPCQ/...),
the two execution modes (command-list vs greenlet runner), scratch
allocator semantics, dispatch-overhead model, and the kernel registry.
- 0047 par-ahbm-ccl-backend: torch.distributed.init_process_group
(backend="ahbm") install path. world_size priority (algorithm >
defaults > topology), the 4-step init sequence (load ccl.yaml, import
algorithm module, derive world_size, install SFR + IPCQ), greenlet-
local rank registry, all_reduce dispatch via _defer_wait, barrier
no-op rationale, and the explicit list of unsupported dist.* APIs.
- 0048 mem-allocator-algorithms: VirtualAllocator + PEMemAllocator
free-list semantics. Offset-keyed first-fit with coalescing, the
no-validation trust model for free(), HBM/TCM channel separation,
page-aligned VA allocation, the page_size dual-default
(VirtualAllocator 2 MiB / _ensure_allocators 4 KiB fallback), and
one-allocator-per-sub-unit rule.
- 0049 ver-probe-subcommand: kernbench probe traffic-pattern catalog.
H2D / D2H / PE DMA categories with their exact cube-index choices,
the 32 KiB reference size, the 5-point utilization sweep, the
formula vs actual column meanings, automatic invariant checks
(monotonicity, D2H >= H2D, best < worst), per-case GraphEngine
isolation, and the human-readable (not machine-parsable) output
contract.
Bilingual pair verifier passes for all four EN/KO pairs.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Documents src/kernbench/benches/: how @bench registration + audit work,
how the CLI dispatches via run_bench/RuntimeContext, and the contract a
new bench module must satisfy.
Nine decisions (D1-D9) cover:
- @bench name/description rules and duplicate detection
- Module-file convention (_-prefixed helpers vs bench modules)
- def run(torch) signature; torch = RuntimeContext
- Minimum-one-submit rule (else NO_REQUESTS)
- Single-device convention + multi-SIP CCL exception (ADR-0024/0027)
- resolve() name/index decision tree; indices are not a stable API
- Exact RuntimeContext surface exposed to benches
- Env-var parameterization (matmul_composite / gemm_sweep.py pattern)
Four alternatives rejected with documented reasons (manifest YAML,
decorator entry= arg, @multi_device_bench split, stable indices).
Verifier (tools/verify_adr_lang_pairs.py) passes for EN/KO pair.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Document the allreduce + GEMM evaluation harnesses and bring the affected
allreduce ADRs in line with the refactored code.
New (Accepted, EN + KO):
- ADR-0043 — allreduce evaluation harness (tests/sccl/): distributed-driven
correctness, latency/buffer-kind sweeps, sessionfinish plot aggregators,
topology + FSIM-comparison figures. Verified against the implementation.
- ADR-0044 — GEMM evaluation harness (scripts/gemm_sweep.py + tests/gemm/):
heavy-script data gen vs. fast test-rendered figures, slow regenerator,
the 3-figure set. Records two limitations as open questions: the
theoretical-model constants are inherited (not yet traced to ADR-0033/
0014), and the *_measured figure is a naming misnomer.
Updated (EN + KO):
- ADR-0024 — add D5: SIP grid w/h resolution (explicit sips.w/h, square
fallback, fail-loud), documenting the AhbmCCLBackend fix.
- ADR-0032 — D4/D5/Non-goals reconciled: rectangular SIP grids (e.g. 6 SIPs
as 3x2) are supported via explicit w/h; the square requirement now
applies only to the fallback. Affected-files repointed to tests/sccl/.
Verification: ADR-0023 and ADR-0042 confirmed still matching the code (no
change). verify_adr_lang_pairs.py passes (EN/KO Status blocks byte-equal).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Rename the intercube all-reduce identity to lrab_hierarchical_allreduce
(module, config key, distributed test) so the name reflects both levels
it implements: LRAB intra-SIP (local reduce to center root + broadcast)
and the hierarchical inter-SIP topology exchange (ring/torus/mesh).
ADR-0032 slug kept as the stable decision id; pure rename, no logic change.
Also in this batch:
- ADR-0032 (EN+KO): document the shipped center-root bidirectional reduce
(doc was stale corner-root); annotate ccl.yaml root_cube as a placeholder.
- Rename allreduce + pe2pe latency plots to descriptive, title-matching
filenames and retitle the in-plot headings; drop overview/overview_log.
- Point the PPTX image refs at the new plot names.
Doc + derived-artifact + rename only; no simulation behavior changed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Fill component-model coverage gaps surfaced by /report's G4 analysis.
Each ADR documents the component's First action, latency model, and
honest notes on dormant code or implementation asymmetries discovered
during re-evaluation against current code.
- 0038 pcie_ep: thin protocol-overhead model; ComponentBase forwarding
worker as-is; named-node contract for router helpers
- 0039 pe_mmu: component + utility dual role; sub-page region stopgap;
D2.1 flags pipeline path missing mmu.overhead_ns timeout (asymmetric
with non-pipeline; not visible at default tlb_overhead_ns=0)
- 0040 pe_tcm: dual-channel BW serialization (read/write Resource cap=1);
TcmRequest schema owned by TCM; timing-only (no data store)
- 0041 sram: terminal scratchpad model + ResponseMsg on reverse path;
D1.1 flags _worker override as currently dormant (no Transaction
actually targets the SRAM node today)
- 0042 tiling: pure plan-generator module, not a component; corrects
the G4 misclassification; pins GEMM/Math stage sequences and
epilogue scope contract
Also: /report skill G3 refinement — only flag older->newer asymmetric
cross-references; newer->older (e.g., 0034-0037 citing infrastructure
ADRs) are expected one-way and no longer reported.
Bilingual pair verifier (tools/verify_adr_lang_pairs.py) passes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Move benches/ -> src/kernbench/benches/ and src/kernbench/cli/probe.py ->
src/kernbench/probes/probe.py. Each bench self-registers via
@bench(name=..., description=...); kernbench list enumerates benches
with auto-assigned indices, --bench accepts kebab-case name or numeric
index. Audit at package-import time fails if any non-underscore module
forgets the decorator. ADR-0010 (EN + KO) updated to reflect the new
resolver path, list subcommand, and probes package separation.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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>
Establish English as the canonical ADR language with Korean translations
held in a parallel docs/adr-ko/ tree as derived artifacts (1:1 mirror).
Promotion from adr-proposed/ to adr/ now writes English to adr/ and the
Korean to adr-ko/; bidirectional sync rule documented in CLAUDE.md.
- Migrate 30 ADRs in docs/adr/: 28 Korean-only translated to English,
2 bilingual pairs (ADR-0020, ADR-0023) consolidated (.en.md suffix
dropped). ADR-0023 EN regenerated against KO source which had newer
HW Realization Notes (D16-D23) section.
- docs/adr-history/ left frozen by design (transitional state).
- CLAUDE.md (Part 2): update ADR Lifecycle for 4-folder layout, mark
docs/adr-ko/ as a Derived Artifact, add ADR Translation Discipline
section covering bidirectional sync, conflict resolution (EN wins),
and proposed-language freedom.
- tools/verify_adr_lang_pairs.py: new verification tool checking pair
completeness, filename mirroring, ADR-ID match, Status byte-equality.
Pre-commit hook intentionally not added; run on demand or in CI.
- tests/test_verify_adr_lang_pairs.py: 11 cases including CRLF/LF
normalization, em-dash title separator, underscore-slug edge case.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
ywkang
mukesh