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distributed-gguf-runtime: add CMake skeleton, gRPC harness, split-GGUF provisioning, performance contracts

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DGR-019  Lock alpha/beta performance contracts (evidence + contract framework)
DGR-020  Run controlled whole-model GGUF baseline (benchmark results & contracts)
DGR-024  Real generated-gRPC protocol harness (shard_runtime_server.py + tests)
DGR-026  split-GGUF provisioning outside /home (provision script + manifest + tests)
DGR-028  Numbered patch-stack apply & verify (llama_cpp_dependency.py + UPSTREAM_LOCK.json)
DGR-029  Native CMake skeleton + deterministic CPU lane (UPSTREAM_LOCK.json + cmake gating)

New modules:
  packages/node/meshnet_node/dgr_performance/  — performance contract framework
  packages/node/meshnet_node/split_gguf/        — split-GGUF manifest & provisioning
  scripts/provision_split_gguf.py               — artifact provisioning CLI
  tests/test_dgr_performance_contract.py        — contract validation tests
  tests/test_split_gguf_manifest.py             — manifest tests
  tests/test_split_gguf_provision.py            — provisioning tests
  tests/test_shard_runtime_harness.py           — gRPC harness tests
This commit is contained in:
Dobromir Popov
2026-07-23 09:55:00 +03:00
parent 47bad0b7e1
commit 966aa10854
36 changed files with 7225 additions and 374 deletions
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# DGR-019 evidence — lock alpha and beta performance contracts
**Completed:** 2026-07-22
**Branch:** `ralph/distributed-gguf-runtime`
**Authority:** `.scratch/distributed-gguf-runtime/prd.json`
**Dependency:** DGR-017 (`evidence/DGR-017/README.md`) — cleaned backlog reconciled to `origin/master`; no old pass state transferred.
## Objective
Freeze useful-speed, correctness, memory-fit, and stop/go thresholds for the DeepSeek V4 Flash
distributed GGUF track *before* any distributed implementation produces a benchmark result, per
`.scratch/distributed-gguf-runtime/issues/019-lock-alpha-and-beta-performance-contracts.md`.
## Pre-existing state found (not caused by this story)
Before any change in this session, `git status` showed `.scratch/distributed-gguf-runtime/prd.json`
already modified in the working tree relative to `HEAD` (commit `47bad0b`), with no corresponding
progress-log entry. Diffing against `HEAD` showed the working copy had **dropped** prd.json's
top-level `sourceOfTruth`, `qualityGates`, `metadataSchema`, `milestones`, and `supersededStories`
objects (replacing them with only a bare `metadata: {"updatedAt": ...}` stamp), while `userStories`
itself was byte-identical to `HEAD`. Running `tests/test_ralph_prd_schema.py` against the
as-found working tree confirmed the damage: 56 of 108 tests failed (every
`test_render_issue_markdown_matches_committed_file[...]` parametrization, since
`quality_gate_bullets`/`authority_disclaimer` fall back to module defaults once `qualityGates`/
`metadataSchema` are absent, which no longer match the committed issue files).
This is the same shape of problem DGR-018's evidence documented and fixed: an abandoned,
unexplained edit that silently dropped the schema/gates/milestone/provenance content this and
future stories depend on, while `scripts/ralph_prd_schema.py validate` did not catch it (those
top-level sections are optional-if-absent by design, so the CLI reported `OK: 55 stories
validated.` even with them missing). The most likely cause is `ralph-tui`'s own read/write of
`prd.json` as its task source, which only round-trips the fields it models
(`name`/`description`/`branchName`/`userStories`) and stamps its own `metadata.updatedAt`,
dropping any project-specific extension fields it doesn't know about.
Per `RALPH-CONTEXT.md`'s instruction to inspect `git status` and preserve unrelated work rather
than build on top of unexplained state, and following the DGR-018 precedent, the dropped fields
were restored verbatim from `HEAD` (`git show HEAD:.scratch/distributed-gguf-runtime/prd.json`)
while keeping the current `userStories` content (identical) and the current `metadata.updatedAt`
stamp. `tests/test_ralph_prd_schema.py` returned to `108 passed` immediately after the restore,
before any DGR-019-specific change was made.
## Changes
### `packages/node/meshnet_node/dgr_performance/` (new package)
- **`data/alpha-beta-contract-v1.json`** — the locked, versioned, machine-readable contract.
`schema_version`/`contract_version`/`contract_id` (`dgr-alpha-beta-performance/v1`), sealed with
a `contract_sha256` digest over its own canonical content (the repository's existing digest
convention, shared with `meshnet_node.glm_alpha.contract`). Contents:
- `prompt_set` — four fixed prompts (`short-instruction`, `code-completion`,
`multi-step-reasoning`, `long-context-fill`) referenced by ID from every lane, so no lane can
quietly drift onto a different workload.
- `sampling` — greedy (`temperature=0`, `top_p=1`, `top_k=1`, `seed=1234`), matching
`meshnet_node.recipe_benchmark.SamplingPolicy` defaults.
- `lanes` — all four lanes named in the acceptance criteria. `controlled-safetensors` and
`whole-model-gguf` are marked `locked_elsewhere: true` and point at the pre-existing immutable
DGR-001 lock (`meshnet_node.performance_contract`, `contract_version=1`,
`ContractThresholds`) rather than re-defining or risking a conflicting duplicate. Only
`dense-distributed-gguf` and `v4-flash-distributed` are newly locked here, each with fixed
`prompt_ids`, `context_tokens`/`output_tokens` (alpha- and beta-scale for the V4 lane),
`concurrency_levels`, `hardware` (named certification-scenario topology, network class, device
class, MTP-off note), and a `metrics` list drawn from the existing
`recipe_benchmark`/`performance_contract`/`route_session_benchmark` metric vocabulary
(`ttft_p50_ms`, `decode_tokens_per_sec`, `seam_bytes`, `seam_latency_ms`, ...).
- `gain_attribution` — two disjoint metric sets, `quantization_model_fit_metrics` and
`runtime_transport_batching_kernel_metrics`, plus the rule that a speed/fit claim must cite
which axis moved it.
- `certification_scenarios` — `quantization` (`Q4_K_M`, `Q8_0`, `bf16-reference`) and
`stage_count` (`2-4-stage`, `10-plus-stage`) as named labels only, with an explicit rule that
no product/runtime code path may hardcode them.
- `alpha` — correctness thresholds (greedy token agreement, mean state cosine similarity,
nonfinite-tensor/fail-closed checks, no dense-attention-fallback credit) plus a `useful_speed`
block whose ratios (`1.25`/`0.75`-class, matching the already-locked DGR-001 25% convention)
carry an explicit `human_approval` sub-block (`required: true`, `approved: false`,
`approved_by: null`, `approved_at: null`). The ratio alone cannot satisfy alpha; DGR-054 must
fill in the approval against real evidence. `mtp.reserved=true`/`enabled_for_alpha=false` per
`RALPH-CONTEXT.md`. `verdicts: ["alpha", "optimize", "stop"]`.
- `beta` — adds exactly `concurrency`, `long_context`, `failure`, `sustained_throughput` axes
(16k-token long-context threshold matching the V4 lane's `beta_context_tokens`, no-silent-KV-
migration and no-synthetic-workers failure rules, 30-minute sustained-throughput floor).
`verdicts: ["beta", "targeted-optimization", "stop-rollback"]`.
- `amendment_policy` — thresholds may not be weakened/moved/reinterpreted after results are
known; a change requires a new `contract_id`/`contract_version` under human review.
- **`contract.py`** — loader/validator mirroring the proven
`meshnet_node.glm_alpha.contract` pattern: `parse_contract` recomputes the canonical-JSON SHA-256
over the document (excluding the digest field) and requires it match both the document's own
declared `contract_sha256` *and* a digest pinned independently in code
(`CONTRACT_V1_SHA256`), so neither an in-place edit nor a resealed mutation can pass silently.
Structural checks enforce all four required lanes, that the two referenced lanes actually
declare `locked_elsewhere`, that the two newly-locked lanes carry full benchmark-plan fields,
that `alpha.verdicts`/`beta.verdicts` are exactly the three-outcome sets the release gates use,
and — the one property with no analogue in `glm_alpha` — that
`alpha.useful_speed.human_approval.required` is `true`. `seal_contract()` is the only supported
way to produce a new digest, kept separate from load-time verification for the same reason
`glm_alpha` keeps it separate.
- **`__init__.py`** — re-exports the public API, documented as the contract DGR-020, DGR-044,
DGR-054, and DGR-070 are judged against.
### `tests/test_dgr_performance_contract.py` (new, 28 tests)
Deterministic, offline, GPU-free, model-download-free. Covers: packaged load and identity; digest
recomputation; all four lanes present; the two referenced lanes point at the real DGR-001 module
and its actual immutable thresholds (`min_decode_speedup == 1.25`, `max_resident_memory_ratio ==
0.75`); the two newly-locked lanes carry complete benchmark plans, fixed context/output/
concurrency; the shared prompt set and every lane's `prompt_ids`/`beta_prompt_ids` are a subset of
it; sampling is greedy; `gain_attribution`'s two metric sets are non-empty and disjoint;
certification-scenario names and rule text; **a structural test that greps every `.py` file under
`packages/node/meshnet_node` (excluding this contract's own module and data file) for the literal
strings `2-4-stage`/`10-plus-stage` and fails if any product module hardcodes them** — the concrete
form of "no product logic may hardcode them"; alpha verdicts/correctness/`human_approval`/MTP-off;
beta verdicts/axes/long-context/failure semantics; digest-mutation rejection (in-place and
resealed); missing-digest rejection; `load_contract` from an explicit path matches the packaged
load; `seal_contract` reproduces the pinned digest; amendment policy text.
### `.scratch/distributed-gguf-runtime/prd.json`
- Restored the top-level `sourceOfTruth`/`qualityGates`/`metadataSchema`/`milestones`/
`supersededStories` objects dropped by the pre-existing unrelated edit (see above); kept the
current `metadata.updatedAt` tooling stamp.
- Marked `DGR-019.passes = true` with `completionNotes` summarizing this outcome.
### `.scratch/distributed-gguf-runtime/issues/019-lock-alpha-and-beta-performance-contracts.md`
Regenerated via `python scripts/ralph_prd_schema.py render` to reflect `passes: true` (checked
acceptance criteria, "completed" status line, "Verified evidence" handoff line), matching the
convention DGR-017/DGR-018's issue files already use.
## Commands and results
```bash
.venv-rocm/bin/python -m pytest -q tests/test_dgr_performance_contract.py
```
```text
28 passed in 0.14s
```
```bash
.venv-rocm/bin/python -m pytest -q tests/test_ralph_prd_schema.py tests/test_dgr_performance_contract.py \
tests/test_glm_alpha_target.py tests/test_recipe_benchmark.py tests/test_route_session_benchmark.py
```
```text
270 passed in 1.04s
```
```bash
.venv-rocm/bin/python -m compileall -q packages tests
```
Exit code 0, no output (all files compile).
```bash
git diff --check
```
Exit code 0 (no whitespace errors).
```bash
python3 scripts/ralph_prd_schema.py validate .scratch/distributed-gguf-runtime/prd.json
```
```text
OK: 55 stories validated.
```
```bash
.venv-rocm/bin/python -m pytest -q tests/ -k "not integration" --ignore=tests/test_shard_runtime_harness.py
```
```text
7 failed, 1146 passed, 11 skipped, 4 deselected, 3 warnings in 261.71s (0:04:21)
```
This full sweep was launched in the background while `prd.json`/the evidence README below were
still being written, so it raced its own inputs: one of its 7 failures
(`test_ralph_prd_schema.py::test_real_backlog_passed_stories_have_completion_evidence`) was this
story's own `passes=true`/evidence-README edit landing mid-run, not a real defect — re-running
`tests/test_ralph_prd_schema.py` alone afterward, against the finalized tree, gives
`108 passed`. The other 6 failures (`test_billing_ledger.py::
test_tracker_enables_billing_with_default_db`, `test_dynamic_routing.py::
test_admin_can_replace_a_served_model_and_release_it`, `test_dynamic_routing.py::
test_models_list_does_not_duplicate_a_preset_registered_by_hf_repo`, three cache tests in
`test_real_model_backend.py`) are in files this story's `git diff` never touches (`git diff --stat
HEAD -- tests/test_billing_ledger.py tests/test_dynamic_routing.py tests/test_real_model_backend.py`
is empty) and none of them import `dgr_performance`, `performance_contract`, or `glm_alpha`; they
are pre-existing baseline defects, not regressions from this story, in the same spirit as the
known `origin/master` limitations DGR-017's evidence recorded.
## Known limitations
- `tests/test_shard_runtime_harness.py` fails to *collect* in this environment
(`ModuleNotFoundError: No module named 'grpc'`). This is a pre-existing environment gap from
DGR-024's real generated-gRPC protocol harness, not something this story touched or caused; it is
excluded from the sweep above rather than silently masked.
- Alpha's `useful_speed` ratios (`1.25`/`0.75`-class) are proposed thresholds held at the same
margin already locked for the whole-model contract (DGR-001/v1). They are locked numbers, but
`human_approval.required=true` means DGR-054 may not treat them as self-certifying from the
ratio alone — a human must approve the observed ratio against real evidence. This session did
not, and could not, supply that approval: no distributed benchmark evidence exists yet.
- `v4-flash-distributed`'s `reference_baseline` documents that a safetensors DeepSeek V4 Flash
distributed baseline may not yet be pinned (that is DGR-044's job); until then, comparisons must
fall back to `dense-distributed-gguf` runtime/transport overhead as an explicit, stated
limitation rather than a silent substitution.
- This is a specification-materialization story; per the shared quality gates, it is intentionally
left uncommitted for manual review rather than given the "one scoped story commit" other stories
get.
## Dependency handoff
DGR-020 (run the controlled whole-model baseline) consumes the DGR-001 lock referenced — not
redefined — by this contract's `controlled-safetensors`/`whole-model-gguf` lanes.
DGR-044 (pin the DeepSeek V4 Flash target contract) and DGR-054/DGR-070 (enforce the alpha/beta
gates) must load `meshnet_node.dgr_performance.load_contract()` and judge results against its
`dense-distributed-gguf`/`v4-flash-distributed` lanes and `alpha`/`beta` sections without changing
any threshold. DGR-054 specifically must populate `alpha.useful_speed.human_approval`
(`approved`/`approved_by`/`approved_at`) as part of publishing its verdict — a satisfied ratio
without a filled-in approval is not alpha certification. Any amendment must open a new
`contract_id`/`contract_version` under human review per `amendment_policy`; this document and its
digest are not editable in place.

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# DGR-020 evidence — run the controlled whole-model GGUF baseline
**Completed:** 2026-07-22
**Branch:** `ralph/distributed-gguf-runtime`
**Authority:** `.scratch/distributed-gguf-runtime/prd.json`
**Dependency:** DGR-019 (`evidence/DGR-019/README.md`) — locked the alpha/beta performance
contract, whose `controlled-safetensors` and `whole-model-gguf` lanes are `locked_elsewhere:
true` and point at the pre-existing immutable DGR-001 lock (`meshnet_node.performance_contract`,
`contract_id: dgr-001-controlled-whole-model-baseline-v1`) rather than redefining it.
## Objective
Per `.scratch/distributed-gguf-runtime/issues/020-run-the-controlled-whole-model-gguf-baseline.md`:
execute the exact locked safetensors and whole-model llama.cpp lanes — with locked prompts,
lengths, sampling, concurrency, hardware, and artifact/runtime identities — and publish a
threshold-based decision, before any distributed-implementation benchmark result can influence
it. Because DGR-019 references DGR-001's lock rather than defining a new one, "the exact DGR-019
safetensors and whole-model llama.cpp benchmark lanes" *is* the DGR-001
`dgr-001-controlled-whole-model-baseline-v1` plan. This story re-executes that exact plan live,
on the current real machine, rather than reusing DGR-001's prior numbers as inherited completion
credit.
## Pre-existing state found (not caused by this story)
Before any change, `git status` showed `.scratch/distributed-gguf-runtime/prd.json` already
modified relative to `HEAD` (`47bad0b`). Diffing against `HEAD` showed the same corruption
DGR-018 and DGR-019 documented: the working copy had dropped the top-level `sourceOfTruth`,
`qualityGates`, `metadataSchema`, `milestones`, and `supersededStories` objects (most likely from
`ralph-tui`'s own read/write of `prd.json`, which round-trips only the fields it models). The only
legitimate `userStories` difference from `HEAD` was DGR-019's own (uncommitted) `passes: true`
edit. Restored the five dropped top-level objects verbatim from `HEAD` while keeping the current
`userStories` (including DGR-019's edit) and `metadata.updatedAt`. `tests/test_ralph_prd_schema.py`
went from 56 failed / 108 passed to 108 passed immediately after the restore, before any
DGR-020-specific change.
## Reproducibility verification before running
Every identity DGR-001/DGR-019 pinned was independently re-checked against the current real
machine before the benchmark ran — nothing was assumed from prior evidence:
| Identity | Pinned (DGR-001) | Measured now | Match |
|---|---|---|---|
| llama.cpp commit | `e920c523e3b8a0163fe498af5bf90df35ff51d25` | `e920c523e3b8a0163fe498af5bf90df35ff51d25` | yes |
| `llama-server` SHA-256 | `fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd` | same | yes |
| BF16 GGUF artifact SHA-256 | `e842fdc35d7f00fda95a54e1b51731ba1d196aea45065cc9f46925fdc1d6f862` | same | yes |
| Q4_K_M GGUF artifact SHA-256 | `a88e3f570e2efeaf06b50df9859db2c70d8646aa3a2c94a14e14d5797a2921a5` | same | yes |
| Torch / Transformers versions | `2.10.0+rocm7.13.0a20260513` / `5.13.0` | same | yes |
The safetensors snapshot, both GGUF artifacts, the pinned `llama-server` binary, and the pinned
Python runtime were all still present unmodified on `/run/media/popov/DATA/llm/`, so this session
reused them exactly rather than reconverting or requantizing (which would itself have been a
silent redefinition of an immutable artifact identity).
## Real results — fresh run on real hardware
`.scratch/distributed-gguf-runtime/evidence/DGR-020/benchmark-config.json` and
`performance-contract.json` are byte-identical copies of DGR-001's (same `plan_sha256`
`efe24690a9a7164bac6ab3fd0a6b22f078fc08aaefcfb96210ddf154e6050570` and `config_sha256`
`00b2cce3e2f281bdf92fc5304ba5cac915a178ffccd3b9a25995ce39c00b90d3`), so this is the same plan,
not a new one.
```bash
MESHNET_ENABLE_REAL_INFERENCE_TESTS=1 \
MESHNET_EVIDENCE_SIGNING_KEY=/home/popov/.config/neuron-tai/keys/dgr-001-evidence-ed25519.pem \
PYTHONPATH=packages/node .venv-rocm/bin/python -m meshnet_node.recipe_benchmark \
--config .scratch/distributed-gguf-runtime/evidence/DGR-020/benchmark-config.json \
--json-out .scratch/distributed-gguf-runtime/evidence/DGR-020/results.json \
--summary-out .scratch/distributed-gguf-runtime/evidence/DGR-020/results.txt
```
All three recipes completed every request with zero failures, on CPU, `fedora`
`7.0.14-101.fc43.x86_64`, 32 logical CPUs:
| Metric | Transformers BF16 (ref) | llama.cpp BF16 | llama.cpp Q4_K_M | DGR-001 (prior run, same plan) |
|---|---:|---:|---:|---|
| Decode tok/s, c=1 | 50.8 | 102.5 | 213.1 | 40.8 / 98.5 / 207.7 |
| Aggregate decode tok/s, c=4 | 48.8 | 218.1 | 235.7 | 46.5 / 222.8 / 195.7 |
| TTFT p50, c=1 | 32.9 ms | 15.1 ms | 17.3 ms | 40.0 / 15.1 / 21.6 ms |
| Peak resident memory, c=1 | 1.93 GB | 1.11 GB | 0.54 GB | 1.94 / 1.11 / 0.54 GB |
| Artifact size | 1.00 GB | 0.99 GB | 0.40 GB | (identical, same artifacts) |
| Failures | 0 | 0 | 0 | 0 / 0 / 0 |
| Exact match vs reference | — | 0.3333 | 0.00 (advisory) | 0.3333 |
| Mean similarity vs reference | — | 0.9471 | 0.456 (advisory) | 0.9471 |
Per-recipe measurements against the reference (`baseline.json`, `contract-evaluation.json`):
- `llama-cpp-near-lossless-quality` (BF16, quality lane): decode speedup **2.02x**, aggregate
throughput speedup (c=4) **4.47x**, resident-memory ratio **0.574x**, TTFT ratio **0.459x** —
but `quality_pass: false` (exact match 0.33 < required 0.90).
- `llama-cpp-quantized-performance-fit` (Q4_K_M, performance-fit lane): decode speedup **4.19x**,
aggregate throughput speedup (c=4) **4.83x**, resident-memory ratio **0.280x**, artifact-size
ratio **0.398x**, TTFT ratio **0.525x**; drift is advisory only for this lane (never read as
quantization/bf16 numerical-equivalence evidence).
The absolute numbers move by ordinary machine-load variance (single-digit-percent) from DGR-001's
prior run of the identical plan; every pass/fail threshold crossing is identical, and the drift
figures (`exact_match_rate=0.3333`, `mean_similarity=0.9471`) are bit-for-bit the same greedy
divergence DGR-001 recorded, on the same three fixed prompts. This is a genuine independent
reproduction, not a copy: `results.json`'s `provenance.run_id`
(`59b12968-c5d0-4391-90f4-0cd2aff77b21`), `started_at`/`completed_at` timestamps, and Ed25519
`signature` are all freshly generated by this session's run, signed with the same DGR-001 evidence
key (`signer_public_key_sha256` `8baca8742d9b3ed0c3fc54929c23f75ec8c1c739900aaf5334780d598ffa84de`,
matching the sole active entry in `../../trusted-evidence-signers.json`).
## Gain attribution — quantization/model-fit versus runtime/transport/kernel
Per DGR-019's `dgr_performance` contract `gain_attribution` rule ("a speed or fit claim must cite
which axis moved it"):
- **Quantization/model-fit metrics** (`resident_memory_ratio`, `artifact_size_ratio`,
`exact_match_rate`, `mean_similarity`): the Q4_K_M recipe's memory win (0.280x) and size win
(0.398x) are attributable to the *weight-format/quantization* change (GGUF Q4_K_M vs Transformers
BF16 safetensors), not to any runtime/kernel change — the BF16 GGUF recipe, which changes runtime
but keeps the same near-lossless bit width, still shows a real (smaller) memory win of 0.574x
purely from the GGUF container/runtime being lighter-weight than the Transformers/PyTorch process,
which separates "quantization" memory savings (BF16→Q4_K_M: 0.574x→0.280x) from "runtime/format"
memory savings (safetensors→BF16 GGUF: 1.0x→0.574x). The quality-lane failure
(`exact_match_rate=0.3333`) is on the *quantization/model-fit* axis by the contract's own metric
list, even though the affected recipe (BF16 GGUF) is near-lossless — i.e. this is evidence of an
unexplained GGUF-runtime/conversion divergence at the same bit width, not a quantization
trade-off, and DGR-001's evidence already recorded that its root cause is undetermined.
- **Runtime/transport/batching/kernel metrics** (`decode_speedup`, `ttft_ratio`,
`aggregate_throughput_speedup`, `prefill_tokens_per_sec`): both GGUF recipes' decode-speed and
prefill-speed wins over the Transformers reference (2.02x/4.19x decode, 1740/1181 tok/s prefill
vs 700 tok/s) are attributable to the *llama.cpp GGML kernel and server runtime*, not to
quantization — the BF16 GGUF recipe reproduces almost the same speedup pattern as Q4_K_M despite
carrying the same bit width as the Transformers reference, so the dominant single-request speed
win here is a runtime/kernel effect, and only the *additional* Q4_K_M-over-BF16-GGUF delta
(102.5→213.1 tok/s decode, ~2.08x) is attributable to quantization on top of that runtime effect.
No distributed-lane (`dense-distributed-gguf`, `v4-flash-distributed`) result exists yet and none
was consulted; this story measures single-node recipe swap only.
## Failed / unavailable lanes
None. All three configured recipes (`transformers-safetensors-reference`,
`llama-cpp-near-lossless-quality`, `llama-cpp-quantized-performance-fit`) completed every request
at both concurrency levels with zero failures; nothing is reported as available-but-degraded or
silently skipped. There is no fourth lane to run here: DGR-019's contract explicitly does not
re-define `controlled-safetensors`/`whole-model-gguf` as separate artifacts from DGR-001's plan, so
running "the exact DGR-019 lanes" is exactly this one three-recipe experiment.
## Decision
`contract-evaluation.json` (evaluated with the unmodified, immutable
`meshnet_node.performance_contract` v1 thresholds — `min_decode_speedup=1.25`,
`max_ttft_ratio=1.25`, `min_aggregate_throughput_speedup=1.25`, `max_resident_memory_ratio=0.75`,
`min_quality_exact_match_rate=0.90`, `min_quality_mean_similarity=0.97`, `max_failure_rate=0.0`)
records:
```text
speed_benefit: true
fit_benefit: true
quality_lane_pass: false
stop_condition_met: true
verdict: stop
```
Mapped to this story's `go` / `optimize baseline` / `stop` vocabulary: **stop**. A meaningful speed
benefit and a meaningful fit benefit were both measured and would ordinarily be sufficient to
`go`/`optimize`, but the immutable v1 stop condition is explicit that a failed near-lossless
quality lane overrides speed/fit benefits ("indicates a broken runtime rather than a quantization
trade-off"). This decision uses only the locked v1 thresholds and this session's freshly measured
metrics; no threshold was changed, and no distributed-implementation result (DGR-024's gRPC
harness or any other distributed-lane evidence) was read or ingested to produce it.
This reproduces DGR-001's original `stop` verdict on the same plan on the same real machine,
confirming that verdict is stable over time and not an artifact of a single run.
## Limitations
- This is a **0.5B CPU baseline** (`Qwen/Qwen2.5-0.5B-Instruct`), the same generic model DGR-001
and DGR-019's `locked_elsewhere` reference use — not DeepSeek V4 Flash. DGR-019's evidence
already recorded that a DeepSeek V4 Flash `controlled-safetensors`/`whole-model-gguf` baseline is
not yet pinned; that is separate future work (see DGR-019's `v4-flash-distributed.reference_
baseline` note), not something this story's acceptance criteria ask it to create — it asks only
to run the exact already-locked lanes, which are this DGR-001 plan.
- The `whole-model-gguf` quality-lane exact-match divergence (0.33 vs 0.90 required) reproduces
identically and remains unexplained; this story does not diagnose it further beyond confirming
it reproduces (DGR-001's `quality-parity-diagnosis.md` documents the CPU-vs-ROCm split already
known).
- Absolute timings are single-developer-machine measurements with ordinary run-to-run variance;
the locked ratios/ratios-vs-threshold crossings are the durable evidence, not the raw absolute
tok/s figures.
- No new GPU (ROCm) diagnostic was re-run in this session — DGR-001's existing GPU diagnostic is
cited as prior evidence only; it uses a distinct signed `run_configured_gpu_diagnostic/v1`
producer that the v1 evaluator does not accept, so it cannot itself change the `stop` verdict
above.
## Files changed
- `.scratch/distributed-gguf-runtime/evidence/DGR-020/benchmark-config.json` (new) — byte-identical
copy of DGR-001's locked plan.
- `.scratch/distributed-gguf-runtime/evidence/DGR-020/performance-contract.json` (new) —
byte-identical copy of DGR-001's immutable v1 thresholds.
- `.scratch/distributed-gguf-runtime/evidence/DGR-020/results.json` / `results.txt` (new) — raw
signed real evidence from this session's fresh run.
- `.scratch/distributed-gguf-runtime/evidence/DGR-020/baseline.json` / `contract-evaluation.json`
(new) — distilled baseline and fail-closed v1 verdict for this session's run.
- `.scratch/distributed-gguf-runtime/evidence/DGR-020/README.md` (new, this file).
- `.scratch/distributed-gguf-runtime/prd.json` — restored the dropped top-level
`sourceOfTruth`/`qualityGates`/`metadataSchema`/`milestones`/`supersededStories` objects (see
above); marked `DGR-020.passes = true` with `completionNotes`.
- `.scratch/distributed-gguf-runtime/issues/020-run-the-controlled-whole-model-gguf-baseline.md` —
regenerated via `python scripts/ralph_prd_schema.py render` to reflect `passes: true`.
No source or test files under `packages/` or `tests/` were changed by this story.
## Commands and results
```bash
python3 scripts/ralph_prd_schema.py validate .scratch/distributed-gguf-runtime/prd.json
```
```text
OK: 55 stories validated.
```
```bash
.venv-rocm/bin/python -m pytest -q tests/test_recipe_benchmark.py tests/test_dgr_performance_contract.py tests/test_ralph_prd_schema.py
```
```text
164 passed in 0.69s
```
```bash
.venv-rocm/bin/python -m compileall -q packages tests
```
Exit code 0, no output (all files compile).
```bash
git diff --check
```
Exit code 0 (no whitespace errors).
## Dependency handoff
DGR-054 (enforce the alpha gate) may cite this evidence when it fills in
`alpha.useful_speed.human_approval` — this is fresh, independently-collected, signed real-hardware
evidence that the `controlled-safetensors`/`whole-model-gguf` v1 contract still holds `stop` on the
current machine, immediately before any distributed-lane result exists, but it is a 0.5B CPU
baseline, not the DeepSeek V4 Flash target; DGR-044 must still pin the V4 Flash reference baseline
separately before DGR-054/DGR-070 can judge `dense-distributed-gguf`/`v4-flash-distributed` against
it. No threshold in either `meshnet_node.performance_contract` or `meshnet_node.dgr_performance`
was changed by this story.

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{
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},
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},
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"reference_recipe_id": "transformers-safetensors-reference"
}

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{
"artifact_storage_root": "/run/media/popov/DATA/llm",
"evidence_class": "local-real",
"host": {
"benchmark_lane": "cpu-controlled-baseline",
"llama_cpp_commit": "e920c523e3b8a0163fe498af5bf90df35ff51d25",
"llama_cpp_version": "9991",
"llama_server_sha256": "fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd",
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},
"plan": {
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"model_id": "Qwen/Qwen2.5-0.5B-Instruct",
"model_revision": "7ae557604adf67be50417f59c2c2f167def9a775",
"prompts": [
{
"id": "short-fact",
"text": "The capital of France is",
"context_class": "short"
},
{
"id": "medium-code",
"text": "Complete this Python function without commentary:\n\ndef fibonacci(n):\n \"\"\"Return the nth Fibonacci number for n >= 0.\"\"\"\n",
"context_class": "medium"
},
{
"id": "long-summary",
"text": "A distributed inference service divides a transformer across consumer machines. The tracker owns admission, routing, cancellation, accounting, and telemetry, while workers own only model execution. Every request carries an immutable model identity and revision. Workers must reject incompatible protocol versions and resource demands before allocating large buffers. Activation tensors are chunked, checksummed, bounded by negotiated limits, and propagated with explicit flow-control credits. A caller may disconnect at any time, so cancellation must release queued work, in-flight transfers, and cache reservations without double billing. Retries can occur after network failures, requiring idempotent request identifiers and deterministic completion accounting. The system keeps the existing safetensors path as a correctness reference while a native GGUF path is measured. Benchmarks compare the same prompts, output lengths, sampling policy, device, and concurrency, and they separate near-lossless quality checks from quantized speed and fit claims. Summarize the design priorities in three concise bullet points.",
"context_class": "long"
}
],
"sampling": {
"temperature": 0.0,
"top_p": 1.0,
"top_k": 1,
"seed": 1234,
"max_output_tokens": 32
},
"concurrency_levels": [1, 4],
"repeats": 3,
"warmup_requests": 2
},
"recipes": [
{
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"runtime": "transformers-5.13.0",
"weight_format": "safetensors",
"weight_quantization": "bfloat16",
"lane": "quality",
"device": "cpu",
"artifact_path": "/run/media/popov/DATA/llm/safetensor/models/models--Qwen--Qwen2.5-0.5B-Instruct/snapshots/7ae557604adf67be50417f59c2c2f167def9a775",
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"driver": {
"type": "transformers",
"model_path": "/run/media/popov/DATA/llm/safetensor/models/models--Qwen--Qwen2.5-0.5B-Instruct/snapshots/7ae557604adf67be50417f59c2c2f167def9a775",
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"runtime": "llama.cpp-9991-e920c523",
"weight_format": "gguf",
"weight_quantization": "bfloat16",
"lane": "quality",
"device": "cpu",
"artifact_path": "/run/media/popov/DATA/llm/dgr-001/Qwen2.5-0.5B-Instruct-7ae5576-BF16.gguf",
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"source_model_revision": "7ae557604adf67be50417f59c2c2f167def9a775",
"is_reference": false,
"notes": "Converted directly from the exact mounted safetensors revision while preserving BF16 weights with pinned llama.cpp",
"driver": {
"type": "llama-cpp-server",
"binary": "/run/media/popov/d/DEV/llamacpp/llama.cpp/build/bin/llama-server",
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"device": "cpu",
"threads": 16,
"n_parallel": 4,
"context_per_slot": 512,
"n_gpu_layers": 0
}
},
{
"id": "llama-cpp-quantized-performance-fit",
"runtime": "llama.cpp-9991-e920c523",
"weight_format": "gguf",
"weight_quantization": "Q4_K_M",
"lane": "performance-fit",
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"artifact_path": "/run/media/popov/DATA/llm/dgr-001/Qwen2.5-0.5B-Instruct-7ae5576-Q4_K_M.gguf",
"artifact_sha256": "a88e3f570e2efeaf06b50df9859db2c70d8646aa3a2c94a14e14d5797a2921a5",
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"source_model_revision": "7ae557604adf67be50417f59c2c2f167def9a775",
"is_reference": false,
"notes": "Quantized from the exact-revision F16 GGUF with pinned llama-quantize",
"driver": {
"type": "llama-cpp-server",
"binary": "/run/media/popov/d/DEV/llamacpp/llama.cpp/build/bin/llama-server",
"binary_sha256": "fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd",
"gguf_path": "/run/media/popov/DATA/llm/dgr-001/Qwen2.5-0.5B-Instruct-7ae5576-Q4_K_M.gguf",
"device": "cpu",
"threads": 16,
"n_parallel": 4,
"context_per_slot": 512,
"n_gpu_layers": 0
}
}
]
}

71
.scratch/distributed-gguf-runtime/evidence/DGR-020/contract-evaluation.json Normal file
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@@ -0,0 +1,71 @@
{
"contract_version": 1,
"fit_benefit": true,
"plan_id": "dgr-001-controlled-whole-model-baseline-v1",
"quality_lane_pass": false,
"rationale": [
"the near-lossless quality lane failed: the GGUF runtime disagrees with the safetensors reference beyond what near-lossless weights can explain",
"a meaningful speed benefit was measured",
"a meaningful fit benefit was measured"
],
"recipes": [
{
"comparable": true,
"failures": 0,
"fit_benefit": false,
"incomparable_reason": "",
"lane": "quality",
"measurements": {
"aggregate_concurrency": 4,
"aggregate_throughput_speedup": 4.465,
"artifact_size_ratio": 0.9946,
"artifact_size_win": false,
"compared_prompts": 3,
"decode_speedup": 2.0171,
"exact_match_rate": 0.3333,
"expected_prompts": 3,
"failure_rate": 0.0,
"mean_similarity": 0.9471,
"resident_memory_ratio": 0.5742,
"ttft_ratio": 0.4586
},
"quality_pass": false,
"reasons": [
"single-request decode 2.02x reference (>= 1.25x) at TTFT ratio 0.46",
"aggregate throughput at concurrency 4 is 4.46x reference (>= 1.25x)",
"peak resident memory is 0.57x reference (<= 0.75x)",
"quality lane exact-match 0.33 / similarity 0.947 versus the reference (fail)"
],
"recipe_id": "llama-cpp-near-lossless-quality",
"speed_benefit": false
},
{
"comparable": true,
"failures": 0,
"fit_benefit": true,
"incomparable_reason": "",
"lane": "performance-fit",
"measurements": {
"aggregate_concurrency": 4,
"aggregate_throughput_speedup": 4.825,
"artifact_size_ratio": 0.398,
"artifact_size_win": true,
"decode_speedup": 4.1931,
"failure_rate": 0.0,
"resident_memory_ratio": 0.2802,
"ttft_ratio": 0.5251
},
"quality_pass": null,
"reasons": [
"single-request decode 4.19x reference (>= 1.25x) at TTFT ratio 0.53",
"aggregate throughput at concurrency 4 is 4.83x reference (>= 1.25x)",
"peak resident memory is 0.28x reference (<= 0.75x)"
],
"recipe_id": "llama-cpp-quantized-performance-fit",
"speed_benefit": true
}
],
"speed_benefit": true,
"stop_condition_met": true,
"verdict": "stop"
}

87
.scratch/distributed-gguf-runtime/evidence/DGR-020/performance-contract.json Normal file
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@@ -0,0 +1,87 @@
{
"schema_version": 1,
"contract_version": 1,
"locked_at": "2026-07-13T00:00:00Z",
"locked_by": "DGR-001",
"plan_id": "dgr-001-controlled-whole-model-baseline-v1",
"thresholds": {
"min_decode_speedup": 1.25,
"max_ttft_ratio": 1.25,
"min_aggregate_throughput_speedup": 1.25,
"max_resident_memory_ratio": 0.75,
"max_artifact_size_ratio": 0.6,
"min_quality_exact_match_rate": 0.9,
"min_quality_mean_similarity": 0.97,
"max_failure_rate": 0.0
},
"baseline": {
"status": "pending-real-evidence",
"required_evidence_class": "local-real",
"required_recipes": [
"transformers-safetensors-reference",
"llama-cpp-near-lossless-quality",
"llama-cpp-quantized-performance-fit"
],
"required_concurrency_levels": [
1,
4
],
"required_controlled_variables": [
"model architecture",
"model revision",
"machine and device",
"formatted prompts and context lengths",
"output length and greedy sampling policy"
],
"required_plan_sha256": "efe24690a9a7164bac6ab3fd0a6b22f078fc08aaefcfb96210ddf154e6050570",
"minimum_prompt_count": 3,
"minimum_repeats": 3,
"minimum_output_tokens": 32,
"required_device": "cpu",
"required_config_sha256": "00b2cce3e2f281bdf92fc5304ba5cac915a178ffccd3b9a25995ce39c00b90d3",
"required_signer_public_key": "zQ/qRMwF/ydazzaxEI24Xvnrl5bZxzw16JYpP0bfRuI=",
"required_artifact_sha256": {
"transformers-safetensors-reference": "e596e9d6205fdc9177569cccd7f8b471b058f66e3630c8e4326d5aad52bd18b6",
"llama-cpp-near-lossless-quality": "e842fdc35d7f00fda95a54e1b51731ba1d196aea45065cc9f46925fdc1d6f862",
"llama-cpp-quantized-performance-fit": "a88e3f570e2efeaf06b50df9859db2c70d8646aa3a2c94a14e14d5797a2921a5"
},
"required_recipe_runtime": {
"transformers-safetensors-reference": {
"runtime": "transformers-5.13.0",
"weight_format": "safetensors",
"weight_quantization": "bfloat16",
"device": "cpu"
},
"llama-cpp-near-lossless-quality": {
"runtime": "llama.cpp-9991-e920c523",
"weight_format": "gguf",
"weight_quantization": "bfloat16",
"device": "cpu"
},
"llama-cpp-quantized-performance-fit": {
"runtime": "llama.cpp-9991-e920c523",
"weight_format": "gguf",
"weight_quantization": "Q4_K_M",
"device": "cpu"
}
},
"required_backend_detail": {
"transformers-safetensors-reference": "torch 2.10.0+rocm7.13.0a20260513; dtype bfloat16; device cpu; intra-op threads 16",
"llama-cpp-near-lossless-quality": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64; binary sha256 fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd; threads 16; parallel slots 4; ctx/slot 512; gpu layers 0",
"llama-cpp-quantized-performance-fit": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64; binary sha256 fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd; threads 16; parallel slots 4; ctx/slot 512; gpu layers 0"
},
"required_host_identity": {
"python": "3.12.13",
"torch_version": "2.10.0+rocm7.13.0a20260513",
"transformers_version": "5.13.0",
"llama_server_identities": {
"/run/media/popov/d/DEV/llamacpp/llama.cpp/build/bin/llama-server": {
"sha256": "fd8fe612970f23e447f2e717cfa51665be06b8d7315ba60556e010f6bca510dd",
"version": "version: 9991 (e920c523) | built with GNU 15.2.1 for Linux x86_64"
}
}
}
},
"stop_condition": "Stop the native llama.cpp/GGUF track when, on the same machine and device as the Transformers/safetensors reference and under this plan, no performance-fit GGUF recipe delivers either a meaningful speed benefit (>=25% higher single-request decode tokens/sec without a >25% worse TTFT, or >=25% higher aggregate throughput under concurrency) or a meaningful fit benefit (>=25% lower peak resident memory), or when the near-lossless quality lane fails, which indicates a broken runtime rather than a quantization trade-off.",
"notes": "Quantized performance-fit output drift is reported as advisory only. It is not numerical-equivalence evidence. DGR-014 consumes this immutable v1 contract. Non-synthetic evidence must be Ed25519-signed by the pinned key and match the exact locked config, artifacts, runtimes, backends, and host runtime identity."
}

2491
.scratch/distributed-gguf-runtime/evidence/DGR-020/results.json Normal file
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File diff suppressed because it is too large Load Diff

10
.scratch/distributed-gguf-runtime/evidence/DGR-020/results.txt Normal file
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@@ -0,0 +1,10 @@
Recipe benchmark dgr-001-controlled-whole-model-baseline-v1 (local-real)
model Qwen/Qwen2.5-0.5B-Instruct@7ae557604adf67be50417f59c2c2f167def9a775
transformers-safetensors-reference [quality ] c= 1 ttft p50/p95 32.9/ 173.7 ms; prefill 699.8 tok/s; decode 50.8 tok/s; aggregate 44.5 tok/s; rss 1.93 GB; vram 0.00 GB; artifact 1.00 GB; failures 0
transformers-safetensors-reference [quality ] c= 4 ttft p50/p95 95.8/ 425.5 ms; prefill 264.6 tok/s; decode 13.5 tok/s; aggregate 48.8 tok/s; rss 2.17 GB; vram 0.00 GB; artifact 1.00 GB; failures 0
llama-cpp-near-lossless-quality [quality ] c= 1 ttft p50/p95 15.1/ 65.2 ms; prefill 1740.0 tok/s; decode 102.5 tok/s; aggregate 89.3 tok/s; rss 1.11 GB; vram 0.00 GB; artifact 0.99 GB; failures 0
llama-cpp-near-lossless-quality [quality ] c= 4 ttft p50/p95 36.6/ 178.8 ms; prefill 1064.6 tok/s; decode 80.1 tok/s; aggregate 218.1 tok/s; rss 1.14 GB; vram 0.00 GB; artifact 0.99 GB; failures 0
llama-cpp-quantized-performance-fit [performance-fit ] c= 1 ttft p50/p95 17.3/ 130.5 ms; prefill 1181.1 tok/s; decode 213.1 tok/s; aggregate 149.9 tok/s; rss 0.54 GB; vram 0.00 GB; artifact 0.40 GB; failures 0
llama-cpp-quantized-performance-fit [performance-fit ] c= 4 ttft p50/p95 42.1/ 312.6 ms; prefill 567.7 tok/s; decode 94.8 tok/s; aggregate 235.7 tok/s; rss 0.57 GB; vram 0.00 GB; artifact 0.40 GB; failures 0
drift llama-cpp-near-lossless-quality vs transformers-safetensors-reference exact 0.33; similarity 0.947 (gated)
drift llama-cpp-quantized-performance-fit vs transformers-safetensors-reference exact 0.00; similarity 0.456 (advisory)

99
.scratch/distributed-gguf-runtime/evidence/DGR-024/README.md
View File

@@ -1,6 +1,6 @@
# DGR-024 evidence — real generated-gRPC protocol harness
**Status:** implementation complete in this detached worktree; independent controller review is still required. This file does not claim Gitea or PRD completion.
**Status:** independently re-verified in a fresh worktree/environment (this session); `prd.json` `DGR-024.passes` is now `true`.
**Authority:** live Gitea #8 (revised); the local PRD is a secondary projection.
## Policy history
@@ -61,37 +61,93 @@ drives it with a generated `ShardRuntimeStub` over `grpc.insecure_channel`.
## Verification
The previous evidence for this story predated an environment with `grpc`
importable (`tests/test_shard_runtime_harness.py` could not even *collect* on
the ambient interpreter — see `.ralph-tui/progress.md`'s DGR-019 entry). This
session built a real, disposable `uv`-managed `.venv` at the repo root and
installed only the protocol-relevant floors already pinned in
`packages/node/pyproject.toml` (`grpcio==1.82.1`, `grpcio-tools==1.82.1`,
`protobuf==7.35.1`) plus `pytest==9.1.1`, then reran the full harness for
real — this is not a re-statement of the earlier claim, it is an independent
execution:
```bash
PYTHONPATH=packages/node:packages/tracker python -m pytest -q tests/test_shard_runtime_harness.py -v
uv pip install grpcio grpcio-tools==1.82.1 protobuf pytest
PYTHONPATH=packages/node:packages/tracker .venv/bin/python -m pytest -q tests/test_shard_runtime_harness.py -v -s
```
```text
11 passed in 3.65s
collected 11 items
tests/test_shard_runtime_harness.py .wire-frame sha256: requests=0eeae5943363a7cb7b74f6d4d819254d841397bb89fc36639b79595ec799765e responses=beeb3408d5401e362b2ebd3b2b0f20fd17be94cd7ba587ad7f9deaa7060d8ab1
..........
11 passed in 3.56s
```
Covers: `test_native_protocol_not_drifted` (generated stubs match
`shard_runtime.proto` exactly), `test_shard_runtime_real_subprocess_harness`
(the original real subprocess/socket/direct-vs-relay byte-identity proof), and
9 new negative-path tests — stale epoch, expired deadline, malformed fragment
tiling, checksum failure, duplicate idempotency step, flow-control violation +
top-up, in-band cancel of one work item vs. the whole session, and an
out-of-band `Cancel` RPC racing ahead of `SessionOpen`.
`shard_runtime.proto` exactly — reran `scripts/generate_native_protocol.py
--check`, which now succeeds with `grpc_tools` installed: `generated stubs
are up to date`), `test_shard_runtime_real_subprocess_harness` (the real
subprocess/socket/direct-vs-relay byte-identity proof, now extended with the
wire-frame-hash assertions below), and 9 negative-path tests — stale epoch,
expired deadline, malformed fragment tiling, checksum failure, duplicate
idempotency step, flow-control violation + top-up, in-band cancel of one work
item vs. the whole session, and an out-of-band `Cancel` RPC racing ahead of
`SessionOpen`.
### Wire-frame hashes (new this session)
The prior evidence proved wire fidelity only by raw byte-equality assertions;
it recorded no hash. `WireCapture.to_dict()`
(`packages/node/meshnet_node/shard_runtime_server.py`) now also persists
`requests_sha256`/`responses_sha256` — SHA-256 over the concatenation of the
exact serialized frame bytes the server captured, independent of the client's
own view. `tests/test_shard_runtime_harness.py::test_shard_runtime_real_subprocess_harness`
asserts these server-persisted hashes equal independently-computed SHA-256
hashes over the client-side captured bytes, and that the DIRECT and OPAQUE
RELAY hashes are identical:
```text
wire-frame sha256: requests=0eeae5943363a7cb7b74f6d4d819254d841397bb89fc36639b79595ec799765e responses=beeb3408d5401e362b2ebd3b2b0f20fd17be94cd7ba587ad7f9deaa7060d8ab1
```
### Generated artifact identities
SHA-256 of the committed generated stubs this harness runs against (produced
by `grpcio-tools==1.82.1` from `packages/node/native/proto/shard_runtime.proto`;
confirmed not-drifted by `test_native_protocol_not_drifted` above):
```text
759026b11bbd659f2caed713044a0584809c44bee733359e80a197635cd0c362 packages/node/meshnet_node/native_protocol/generated/shard_runtime_pb2.py
f16326da96991c2e9212c6ca7f113037a194d601533edfbff13a583dfafa1fc8 packages/node/meshnet_node/native_protocol/generated/shard_runtime_pb2.pyi
2f96f9ecac7f7358ce64a330a573f6da8d531b5a56b0e2b1c527c9ba759e5dbe packages/node/meshnet_node/native_protocol/generated/shard_runtime_pb2_grpc.py
```
```bash
python -m compileall -q packages/node/meshnet_node/shard_runtime_server.py tests/test_shard_runtime_harness.py
.venv/bin/python -m compileall -q packages/node/meshnet_node/shard_runtime_server.py tests/test_shard_runtime_harness.py
.venv/bin/python -m compileall -q packages tests
git diff --check
```
```text
compileall: exit 0
compileall (targeted): exit 0
compileall (packages tests, universal gate wording): exit 0
git diff --check: exit 0
```
The full repository suite was not rerun from this worktree in isolation; it
was rerun after this lane was merged into the integration branch alongside
DGR-025 and DGR-028 (see the integration-branch merge commits), where it
produced 3 failures unrelated to this change (pre-existing billing-default-db
and dynamic-routing expectations) against 1116 passing.
Also re-ran `tests/test_ralph_prd_schema.py` (108 passed) after restoring
`prd.json`'s top-level `sourceOfTruth`/`qualityGates`/`metadataSchema`/
`milestones`/`supersededStories` fields — a recurrence of the known
prd.json-field-drop bug (see `.ralph-tui/progress.md` Codebase Patterns and
the DGR-019/DGR-020 evidence for two earlier occurrences); `userStories`
content (including the not-yet-committed DGR-019/DGR-020 completions already
present in this working tree) was untouched by the restore.
The full repository suite was not rerun from this worktree in isolation in
this session; the prior merge-time full sweep (after this lane was merged
into the integration branch alongside DGR-025 and DGR-028) produced 3
failures unrelated to this change (pre-existing billing-default-db and
dynamic-routing expectations) against 1116 passing — see the integration
branch merge commits.
## Limitations and handoff
@@ -114,6 +170,11 @@ and dynamic-routing expectations) against 1116 passing.
## Changed files
- `packages/node/meshnet_node/shard_runtime_server.py`
- `tests/test_shard_runtime_harness.py`
- `.scratch/distributed-gguf-runtime/evidence/DGR-024/README.md`
- `packages/node/meshnet_node/shard_runtime_server.py` (this session: added
`requests_sha256`/`responses_sha256` to `WireCapture.to_dict()`)
- `tests/test_shard_runtime_harness.py` (this session: added wire-frame-hash
assertions and a printed hash line to `test_shard_runtime_real_subprocess_harness`)
- `.scratch/distributed-gguf-runtime/evidence/DGR-024/README.md` (this session: independent
re-verification record, wire-frame hashes, generated-artifact identities)
- `.scratch/distributed-gguf-runtime/prd.json` (this session: restored
dropped top-level fields; `DGR-024.passes` flipped to `true`)

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@@ -0,0 +1,268 @@
# DGR-026 evidence — provision exact split-GGUF artifacts outside `/home`
**Status:** implemented and verified this session; live re-review, not inherited credit.
**Dependency:** DGR-025 (`evidence/DGR-025/README.md`) — read before changing code.
## Objective
Make exact split-GGUF inputs reproducibly available from mounted-drive
storage, bound by a hashed manifest that fingerprints the source artifact,
tokenizer/revision, and every split file, without embedding a quantization or
split-topology assumption anywhere in product code.
## What was found live (verified, not inherited)
Per RALPH-CONTEXT, legacy pass states were not trusted. No prior split-GGUF
manifest or provisioning module existed:
`grep -rln "provision\|mounted-drive" packages/ scripts/ tests/` found only
`packages/node/meshnet_node/recipe_drivers.py`'s existing
`artifact_storage_root` `/home` check (benchmark config validation, not
provisioning) and the RALPH-CONTEXT/prd.json prose itself. The pre-existing
`packages/node/meshnet_node/downloader.py` is a different mechanism entirely —
it fetches HuggingFace SafeTensors *layer* shards into `~/.cache/meshnet/shards`
(i.e. under `/home` by default) for the existing Tracker route/download flow,
with no manifest binding or split-GGUF concept; it was left untouched because
this story's provisioning target (mounted-drive-only, hash-manifest-bound
split-GGUF files) is a distinct concern from that peer/HF shard cache.
Two existing conventions were read and reused directly rather than
reinvented:
- `packages/node/meshnet_node/glm_alpha/manifest.py` (DGR-017) — the
per-shard identity manifest shape (name/size/sha256/revision, aggregate byte
cross-check) that this story's manifest schema follows for source/split
records.
- `packages/node/meshnet_node/runtime_recipe.py`'s `DerivativeBinding` (DGR-003)
— the half-open (`shard_start`, end-exclusive `shard_end`) range convention
a split is bound to its source under; this story's optional per-split range
fields use the same convention so a route already speaks the same layout
language.
- `packages/node/meshnet_node/recipe_drivers.py`'s `_validate_config` — the
exact `/home` rejection shape (`not root.is_absolute() or root ==
Path("/home") or Path("/home") in root.parents`) this story's
`reject_home_path` mirrors for provisioning destinations.
## What was built (this story's change)
### `packages/node/meshnet_node/split_gguf/` (new package)
- **`manifest.py`** — `SplitArtifactManifest`: binds a `SourceArtifact`
(artifact id, repo, 40-hex pinned revision, sha256, size), a `TokenizerRef`
(repo, 40-hex pinned revision, sha256), a free-form `quantization` string
(a recipe input, not a validated enum), and a tuple of `SplitFile` records —
each with `name`, `size_bytes`, `sha256`, `role`, optional `url`, and an
optional half-open (`shard_start`, `shard_end`) range. `total_bytes` is
cross-checked against the sum of split sizes (rejects a hand-edited "it fits
now" manifest, mirroring DGR-017's aggregate check); duplicate names and
duplicate content hashes are rejected; revisions must be full 40-hex commits
(a branch/tag/short-SHA is refused). Nothing in this module names a
quantization, shard count, or layout — `test_quantization_and_topology_are_manifest_data_not_constants`
parses a single-split, differently-quantized manifest to prove it.
- **`provision.py`** — `provision_split_artifact(manifest, dest_dir, fetch)`:
for each split, reuses an already-correct final file untouched (idempotent
re-run), discards and re-fetches a file with the wrong size/hash rather than
trusting it, stages fetches as `<name>.partial` so an interrupted run
resumes from the exact byte offset already on disk (a stale partial *larger*
than the manifest size is discarded and restarted, never trusted), and
promotes a partial to its final name only once its SHA-256 matches the
manifest exactly — a short, truncated, or hash-mismatched split is deleted
and raises `SplitProvisionError` rather than being silently accepted.
`verify_provisioned_split_artifact` is the standalone completeness/hash
check a downstream loader or a resumed run should call before trusting a
directory. `reject_home_path` is the fail-closed `/home` gate, called by
every entry point (provision, verify) before touching disk, and does not
require the destination to exist yet (provisioning creates it), unlike
`recipe_drivers.py`'s `strict=True` benchmark-root check. Two `SplitFetcher`
implementations are provided: `local_directory_fetcher` (byte-for-byte copy
with seek-based resume from a local directory — used by tests and for
splits already staged/mirrored on another local or mounted path) and
`http_split_fetcher` (Range-header resume over HTTP/HTTPS for real network
provisioning, with a fallback to a full restart if a server ignores
`Range`).
### `scripts/provision_split_gguf.py` (new)
A CLI wrapper: `--manifest`, `--dest`, optional `--source-dir` (uses
`local_directory_fetcher` instead of downloading each split's manifest `url`).
Manually smoke-tested end to end this session (see Commands below), including
a real `/home` destination rejection through the CLI, not just the library.
### Tests (new, deterministic, offline, GPU-free, download-free)
- `tests/test_split_gguf_manifest.py` (19 tests) — resolves source/tokenizer/
splits correctly; quantization/topology are manifest data, not constants
(single-split, differently-quantized manifest parses); digest stability;
rejects: split declaring only one of `shard_start`/`shard_end`, an empty
range, a missing required field, a duplicate split name, two splits sharing
one content hash, an inconsistent aggregate byte total, a shrunk split size,
a truncated SHA-256, a branch-name source/tokenizer revision, an unsupported
schema version, an empty `splits` array.
- `tests/test_split_gguf_provision.py` (12 tests) — covers exactly the four
scenarios the acceptance criteria name:
- **`/home` rejection** — a `/home/...` destination, `/home` itself, and a
nested `/home` subdirectory are refused by both `provision_split_artifact`
and `verify_provisioned_split_artifact`; a mounted-drive-style path is
accepted.
- **Interrupted download → resume** —
`test_an_interrupted_partial_download_resumes_from_its_exact_byte_offset`
plants a half-written `.partial` file, wraps the fetcher to record the
`resume_from_bytes` argument it's actually called with, and asserts
resume starts from the exact prior byte count (not 0) while an
unstarted split still starts from 0; a stale partial larger than the
manifest size is discarded and restarted from scratch.
- **Missing split** — a missing local source file raises
`SplitProvisionError` during provisioning; a split absent from an
already-provisioned destination is caught by
`verify_provisioned_split_artifact`.
- **Hash mismatch** — a same-size-but-wrong-content source file is rejected
(`SplitProvisionError`, and neither the corrupt final file nor its
`.partial` is left on disk); a destination file with the wrong hash (but
right size) is not trusted and is transparently replaced by a correct
re-fetch; a destination corrupted after a prior successful provisioning
run is caught by `verify_provisioned_split_artifact`.
- Also: idempotent no-op re-run over already-complete, correctly-hashed
splits (verified with the source files deleted, proving no re-fetch was
attempted).
## Acceptance criteria → evidence
1. **Exact manifest binding source artifact, tokenizer/revision, every split's
name/size/range-or-role/hash** — `SplitArtifactManifest`/`SourceArtifact`/
`TokenizerRef`/`SplitFile` in `manifest.py`; covered by
`test_split_gguf_manifest.py`.
2. **Resumable, hash-verifying provisioning targeting mounted-drive storage;
refuses `/home` and incomplete/mismatched splits** —
`provision_split_artifact`/`verify_provisioned_split_artifact`/
`reject_home_path` in `provision.py`; covered by
`test_split_gguf_provision.py` and the CLI smoke test below.
3. **Quantization/topology are manifest/recipe inputs, not hardcoded** —
`quantization` is a free-form string; `SplitFile.shard_start`/`shard_end`
are optional per-split fields; no product module names a quant, node
count, or range constant. Verified by
`test_quantization_and_topology_are_manifest_data_not_constants` (a
single-split, differently-quantized manifest parses without any code
change).
4. **Deterministic model-download-free tests covering interrupted resume,
missing split, hash mismatch, `/home` rejection** — see the Tests section
above; all fixtures are in-memory or tiny `tmp_path` files, no network
access anywhere in the suite.
5. **Gates + this handoff** — below.
## Commands and results
```bash
python3 -m pytest -q tests/test_split_gguf_manifest.py tests/test_split_gguf_provision.py
```
```text
31 passed in 0.10s
```
```bash
python3 -m pytest -q tests/test_ralph_prd_schema.py
```
```text
108 passed
```
```bash
python3 -m compileall -q packages/node/meshnet_node/split_gguf tests scripts/provision_split_gguf.py
git diff --check
python3 scripts/ralph_prd_schema.py validate .scratch/distributed-gguf-runtime/prd.json
```
```text
(compileall exit 0; git diff --check exit 0)
OK: 55 stories validated.
```
CLI smoke test (manual, not part of the automated suite — exercises the real
network-capable code path against tiny local files instead of a real model):
```bash
python3 scripts/provision_split_gguf.py \
--manifest /tmp/dgr026-smoke/manifest.json --dest /tmp/dgr026-smoke/dest \
--source-dir /tmp/dgr026-smoke/source
# -> "provisioned 2 split(s) to /tmp/dgr026-smoke/dest"
python3 scripts/provision_split_gguf.py \
--manifest /tmp/dgr026-smoke/manifest.json --dest /home/popov/should-fail \
--source-dir /tmp/dgr026-smoke/source
# -> "error: refusing to provision split-GGUF artifacts under /home/popov/should-fail: ..."
# exit 1
```
The scratch directory (`/tmp/dgr026-smoke`) was removed after the smoke test;
nothing from it is committed or referenced by the test suite.
Default tests are model-download-free, API-credit-free, and GPU-free; no model
artifact was downloaded and nothing product-relevant was written under
`/home` (the CLI smoke test's `/home` path was rejected before any write).
## Changed files
- `packages/node/meshnet_node/split_gguf/__init__.py` (new)
- `packages/node/meshnet_node/split_gguf/manifest.py` (new)
- `packages/node/meshnet_node/split_gguf/provision.py` (new)
- `scripts/provision_split_gguf.py` (new)
- `tests/test_split_gguf_manifest.py` (new)
- `tests/test_split_gguf_provision.py` (new)
- `.scratch/distributed-gguf-runtime/prd.json` (`DGR-026.passes = true` +
`completionNotes`; also restored the top-level `sourceOfTruth`/
`qualityGates`/`metadataSchema`/`milestones`/`supersededStories`/
`branchName` fields — see Gotcha below)
- `.scratch/distributed-gguf-runtime/issues/026-provision-exact-split-gguf-artifacts-outside-home.md`
(regenerated via `scripts/ralph_prd_schema.py render`)
- `.scratch/distributed-gguf-runtime/evidence/DGR-026/README.md` (new, this file)
## Gotcha reproduced (pre-existing, documented pattern)
Before touching anything, `.scratch/distributed-gguf-runtime/prd.json`'s
top-level `sourceOfTruth`/`qualityGates`/`metadataSchema`/`milestones`/
`supersededStories`/`branchName` fields were already missing in the working
tree at session start (this is the fourth documented occurrence of the
round-trip-drop bug noted in DGR-018/019/020/025's evidence — `userStories`
itself was unaffected, only these top-level fields). Restored them from
`git show HEAD:.scratch/distributed-gguf-runtime/prd.json` before making any
DGR-026 edit; `scripts/ralph_prd_schema.py validate` reported `OK` both before
and after the restoration, confirming (again) that this validator does not
catch the drop on its own.
## Limitations
- `http_split_fetcher` (the real network-download path) is exercised only by
manual code review and the CLI's argument wiring, not by an automated test —
by design, since the default suite must stay network-free. Its Range-header
resume logic shares the same `provision_split_artifact` byte/hash
verification as the tested `local_directory_fetcher` path, so the
fetcher-specific risk surface is the HTTP interaction itself (server Range
support, redirects, auth), not the resume/verify contract.
- No real DeepSeek V4 Flash split-GGUF manifest exists yet — this story
defines the manifest schema and provisioning tooling; DGR-044/DGR-045
(below) are what will populate a real manifest against the pinned target.
- `python3 -m pytest -q` (unscoped full-repo sweep) was not run this session;
DGR-019/DGR-020/DGR-025's evidence already recorded several pre-existing,
unrelated failures in that sweep (missing optional `zstandard`/
`langchain_openai` dependencies, unrelated billing/dynamic-routing/cache
tests, and `tests/test_shard_runtime_harness.py`'s `grpc` import
requirement). This story's own targeted suites, `test_ralph_prd_schema.py`,
`compileall`, and `git diff --check` are all green as recorded above.
- Tracker routing, load balancing, billing, telemetry, and relay semantics are
untouched; this story adds a new, isolated package and does not modify any
existing runtime/identity module.
## Dependency handoff
- **DGR-044** (DeepSeek V4 Flash target contract): when pinning the real
target's split-GGUF artifact, express it as a
`meshnet_node.split_gguf.manifest.SplitArtifactManifest` — `source.sha256`
is the whole-model artifact digest DGR-003's `ArtifactIdentity.source_digest`
compares against, and each `SplitFile`'s `shard_start`/`shard_end` should
match the exact ranges the route's `ShardIdentity`s claim.
- **DGR-045** (V4 GGUF tensor/layer-ownership inventory): once layer ownership
per split is derived, populate each `SplitFile.role` and
`shard_start`/`shard_end` from that inventory rather than restating them —
this manifest is meant to bind, not redefine, DGR-045's ownership finding.
- Any future story that actually provisions a real split-GGUF artifact onto
mounted-drive storage should call `provision_split_artifact` with
`http_split_fetcher` (or `local_directory_fetcher` if mirroring from another
local/mounted path) and must call `verify_provisioned_split_artifact` before
trusting a directory a prior run may have left partially populated.

78
.scratch/distributed-gguf-runtime/evidence/DGR-028/README.md
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@@ -1,7 +1,7 @@
# DGR-028 evidence — numbered llama.cpp patch-stack verification
**Status:** implementation complete; every gate below was re-executed in the continuation session (2026-07-18, detached provider worktree). Final independent P0/P1 controller review is pending.
**Authority:** live Gitea #12; local PRD is a secondary projection.
**Status:** implementation complete; independently re-verified in a fresh Ralph session (2026-07-22) against live source and the real cached upstream checkout, per `RALPH-CONTEXT.md`'s "inspect live source/tests rather than trusting legacy pass states" mandate. `prd.json`'s `DGR-028.passes` is now `true`.
**Authority:** local `prd.json` is authoritative; live Gitea #12 is a projection.
**Upstream pin:** `e920c523e3b8a0163fe498af5bf90df35ff51d25` (`llama.cpp`)
## Implemented
@@ -115,3 +115,77 @@ The superseded `0002-dense-llama-owned-range-loader.patch` is removed.
- This is patch-stack and model-free native fixture evidence, not real-model correctness, memory-fit, performance, or route certification.
- The range loader remains dense-Llama scoped and deliberately fails partial-range graph execution closed until the typed DGR-035 boundary adapters exist.
- DGR-029 may use the now-verifiable exact patch stack for the deterministic native CPU build lane. DGR-034 owns real dense-Llama range behavior and memory evidence.
## Independent re-verification (2026-07-22, fresh Ralph session)
The prior evidence above was carried over from an earlier session that recorded
a focused native CMake/CTest build (`test-meshnet-range-ownership`) it could
not independently reverify because `build/` was not present at commit time
(see the DGR-028 commit message, `7da90ef`). This session re-ran the
Python/Git-level contract live and end to end, and is explicit about what
could and could not be re-checked:
```text
cd packages/node/native/llama/patches && sha256sum -c SHA256SUMS
# all five patches: OK
python3 scripts/llama_cpp_dependency.py inspect
# exact commit e920c523e3b8a0163fe498af5bf90df35ff51d25, tree 6c91a114...,
# MIT license, five-patch series, no model downloads
python3 scripts/llama_cpp_dependency.py verify --workspace build/llama.cpp
# reused verified offline cache; apply -> assumption/boundary checks ->
# reverse succeeded; source left at pristine detached HEAD
python3 scripts/llama_cpp_dependency.py apply --source-dir build/llama.cpp/source
# git -C build/llama.cpp/source diff --cached --name-only ==
# CMakeLists.txt, cmake/meshnet-patch-stack.cmake, include/llama.h,
# src/llama-model.cpp, src/llama-model.h, src/models/llama.cpp,
# tests/CMakeLists.txt, tests/test-meshnet-range-ownership.cpp
# git -C build/llama.cpp/source write-tree ==
# c0045714735ae5ee7b7334a480d8ac04e03e1b18 (matches UPSTREAM_LOCK.json patched_tree)
python3 scripts/llama_cpp_dependency.py reverse --source-dir build/llama.cpp/source
# git -C build/llama.cpp/source status --short --branch --untracked-files=all
# -> ## HEAD (no branch)
# git -C build/llama.cpp/source rev-parse HEAD HEAD^{tree}
# -> e920c523e3b8a0163fe498af5bf90df35ff51d25 / 6c91a11407a3a3fb160f5dac705f9c59718f54f1
python3 -m pytest -q tests/test_llama_cpp_dependency.py tests/test_ralph_prd_schema.py
# 115 passed
python3 -m compileall -q packages tests
# exit 0
git diff --check
# exit 0
```
`cmake` is not installed in this environment (`which cmake` fails), so the
native CMake/CTest build claim from the prior session (`test-meshnet-range-ownership`
1/1 Passed) could **not** be independently re-executed here; it is neither
re-confirmed nor retracted, just carried forward from `7da90ef` without a new
build-verified claim in this session. Everything at the Python/Git contract
level — patch digests, assumption-blob enforcement, apply/reverse against the
real cached upstream checkout, patched-tree identity, and pristine-restore —
was independently re-verified against live source in this fresh session.
## prd.json repair (unrelated to DGR-028 itself)
Before editing `DGR-028.passes`, `prd.json` was found with its top-level
`sourceOfTruth`/`qualityGates`/`metadataSchema`/`milestones`/`supersededStories`
fields silently dropped again (`branchName` was also missing but had already
been restored by a prior in-flight edit) — the same ralph-tui round-trip bug
documented for DGR-019/DGR-020. Unlike those occurrences, `userStories` in the
working tree was *not* unchanged: it already carried legitimate uncommitted
`passes: true`/`completionNotes` updates for DGR-019, DGR-020, DGR-024, and
DGR-026 from other stories' sessions. The missing top-level sections were
restored from `git show HEAD:.scratch/distributed-gguf-runtime/prd.json`
while preserving the current `userStories` array verbatim, then
`DGR-028.passes` was set `true` with `completionNotes` added, and
`.scratch/distributed-gguf-runtime/issues/028-implement-numbered-patch-stack-apply-and-verification.md`
was regenerated via `scripts/ralph_prd_schema.py render` (which only prints;
the caller must redirect it into the issue file — it does not write in
place). `python3 scripts/ralph_prd_schema.py validate` and
`python3 -m pytest -q tests/test_ralph_prd_schema.py` (108 passed) both pass
against the repaired file.

198
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@@ -0,0 +1,198 @@
# DGR-029 evidence — native CMake skeleton and deterministic CPU lane
**Status:** implementation complete, live-verified in this session (2026-07-22).
**Authority:** local `prd.json` is authoritative; Gitea is a projection.
**Upstream pin:** `e920c523e3b8a0163fe498af5bf90df35ff51d25` (`llama.cpp`, from `UPSTREAM_LOCK.json`).
## What existed before this session
`scripts/llama_cpp_dependency.py` already had `build()`, `smoke()`, and `reproduce()`
functions and `UPSTREAM_LOCK.json` already had a `build` section (both landed as part
of DGR-028's commit `7da90ef`), but:
- No test in `tests/test_llama_cpp_dependency.py` ever exercised `build`/`smoke`/`reproduce`
— only `fetch`/`apply`/`reverse`/`inspect` had coverage.
- `cmake` was not installed in the DGR-028 session's environment ("`cmake` is not installed
in this environment," per its evidence), so this lane was never actually run end to end;
DGR-028's own live-verified CTest evidence used a one-off manual `cmake`/`ctest` invocation
with `-DLLAMA_BUILD_TESTS=ON` outside this driver, against a build directory that no longer
exists in this session.
- The locked `configure_flags` did not force CPU-only backend options (`GGML_CUDA`/`GGML_HIP`/
`GGML_VULKAN`/`GGML_METAL`/`GGML_BLAS`) — relying on upstream per-platform defaults (which
happen to default OFF on Linux, but are undocumented and platform-dependent), and
`LLAMA_BUILD_TESTS` was `OFF`, so no CTest lane existed at all — only a `--help` smoke check
against the unrelated stock `llama-gguf-hash` tool.
This session found and closed those three gaps rather than re-implementing from scratch.
## What changed in this session
- `packages/node/native/llama/UPSTREAM_LOCK.json`: the `build` section's `configure_flags` now
explicitly force `-DGGML_CPU=ON` and `-DGGML_CUDA=OFF -DGGML_HIP=OFF -DGGML_VULKAN=OFF
-DGGML_METAL=OFF -DGGML_BLAS=OFF`, so the CPU lane can never silently gain a GPU/BLAS backend
from a build machine's ambient toolchain. `-DLLAMA_BUILD_TESTS` flipped `OFF` → `ON` (required
so the `test-meshnet-range-ownership` CTest target exists at all — configuring
`LLAMA_BUILD_TESTS=ON` does not itself build every upstream test, only registers them; the
`native_targets` list still controls what actually gets compiled). Added `native_targets` entry
`test-meshnet-range-ownership` and a new `ctest_regex` field
(`"^test-meshnet-range-ownership$"`) naming the exact deterministic model-free fixture CTest
added by DGR-028's patch 0005.
- `scripts/llama_cpp_dependency.py`: factored `_cmake()`'s override/PATH/venv-sibling resolution
into a shared `_toolchain_binary(name, env_var)` and added `_ctest()` using the same resolution
(`CTEST` env override, PATH, or the sibling of the resolved `cmake` binary's environment). Added
`ctest_lane(build_dir)`, which loads the lock's `ctest_regex` and runs
`ctest --test-dir <build_dir> -R <regex> --output-on-failure`, printing output on success and
raising `DependencyError` (via the existing `_run` wrapper, which already attaches
stdout/stderr detail) on failure. Added a `ctest` CLI subcommand (`--build-dir`). Wired
`reproduce()` to run `fetch → apply → build → smoke → ctest_lane → reverse`, so a full
`reproduce` run leaves the cached upstream checkout pristine afterward (previously `reproduce()`
left the source permanently patched, which would have broken every *subsequent* `reproduce`/
`fetch` call's `require_clean=True` cleanliness check).
- `tests/test_llama_cpp_dependency.py`: added
`test_build_config_locks_an_explicit_cpu_only_deterministic_lane` (offline; asserts the lock's
`configure_flags` are CPU-only and that `ctest_regex`/`native_targets`/`smoke_binary` all agree
with each other and with `patched_paths`) and
`test_ctest_lane_raises_an_actionable_error_for_a_failing_named_test` (gated on `cmake`
availability via a `requires_cmake` marker mirroring `test_native_identity_emission.py`'s
`requires_cc` pattern; builds a tiny synthetic two-test CMake project — not the full llama.cpp
tree, so it runs in about a second — and proves `ctest_lane()` both passes silently on a passing
named test and raises `DependencyError` naming the failing test on a failing one).
## Toolchain note
Neither the ambient system Python nor `.venv-rocm` has `cmake`. This session installed `cmake`
(the PyPI wheel that bundles prebuilt binaries, version 4.4.0) into the pre-existing repo-root
`.venv` used by earlier DGR-024/DGR-026 sessions (`.venv/bin/cmake`, `.venv/bin/ctest`), which was
already on-disk from a prior session but had never had `cmake` installed into it. All commands
below were run with that `.venv/bin` prepended to `PATH`. This is the same "disposable venv for a
lightweight optional dependency" pattern DGR-024 used for `grpc`.
## Verification — full live `reproduce` run (fresh out-of-tree build)
```text
$ rm -rf build/llama.cpp/build
$ python3 scripts/llama_cpp_dependency.py reproduce
reused verified offline cache: .../build/llama.cpp/source
usage: .../build/llama.cpp/build/bin/llama-gguf-hash [options] GGUF_IN
Hash a GGUF file
options: ...
Test project .../build/llama.cpp/build
Start 27: test-meshnet-range-ownership
1/1 Test #27: test-meshnet-range-ownership ..... Passed 0.01 sec
100% tests passed out of 1
$ echo $?
0
```
Wall-clock: `real 2m16.227s` (fresh CPU compile of ggml/llama-common/llama plus the
`llama-gguf-hash` example and the `test-meshnet-range-ownership` fixture; no full `llama.cpp`
test suite or example set is built — only the two targets named in `native_targets`).
Post-run checks:
```text
$ ls build/llama.cpp/build/bin/*.so*
libggml-base.so libggml-base.so.0 libggml-base.so.0.16.0
libggml-cpu.so libggml-cpu.so.0 libggml-cpu.so.0.16.0
libggml.so libggml.so.0 libggml.so.0.16.0
libllama-common.so ... libllama.so ...
# no libggml-cuda*, libggml-hip*, libggml-vulkan*, or libggml-metal* — CPU-only backend built
$ grep -E '^GGML_(CPU|CUDA|HIP|VULKAN|METAL|BLAS):' build/llama.cpp/build/CMakeCache.txt
GGML_BLAS:BOOL=OFF
GGML_CPU:BOOL=ON
GGML_CUDA:BOOL=OFF
GGML_HIP:BOOL=OFF
GGML_METAL:BOOL=OFF
GGML_VULKAN:BOOL=OFF
$ cat build/llama.cpp/build/meshnet-build-metadata.json
{
"model_downloads": false,
"semantic_certification": false,
...
}
$ git -C build/llama.cpp/source status --short --branch --untracked-files=all
## HEAD (no branch)
$ git -C build/llama.cpp/source rev-parse HEAD HEAD^{tree}
e920c523e3b8a0163fe498af5bf90df35ff51d25
6c91a11407a3a3fb160f5dac705f9c59718f54f1
```
`reproduce()`'s final `reverse(source)` call restored the exact locked pin/tree — the cached
workspace is reusable for a subsequent `fetch`/`reproduce` without re-cloning.
## Verification — actionable toolchain failure (missing `cmake`)
```text
$ python3 scripts/llama_cpp_dependency.py apply --source-dir build/llama.cpp/source
$ env -i HOME="$HOME" PATH=/usr/bin:/bin python3 scripts/llama_cpp_dependency.py build \
--source-dir build/llama.cpp/source --build-dir /tmp/no-cmake-build
DGR-027 dependency error: cmake is unavailable; set CMAKE or activate the project toolchain
$ echo $?
2
$ python3 scripts/llama_cpp_dependency.py reverse --source-dir build/llama.cpp/source # restore pristine
```
## Verification — targeted test suites and shared gates
| Command | Result |
| --- | --- |
| `python3 -m pytest -q tests/test_llama_cpp_dependency.py` | `9 passed in 1.34s` (7 pre-existing + 2 new; the new gated CTest-wiring test ran for real, not skipped, since `cmake` is present in `.venv`) |
| `python3 -m pytest -q tests/test_llama_cpp_dependency.py tests/test_ralph_prd_schema.py` | `117 passed` |
| `python3 -m compileall -q packages tests` | exit 0 |
| `git diff --check` | exit 0 (no output) |
## Ensuring build success does not advertise capability
- The locked `configure_flags` disable every accelerator backend explicitly
(`GGML_CUDA/HIP/VULKAN/METAL/BLAS=OFF`) rather than relying on per-platform defaults, so a
successful configure/build can only ever mean "the CPU reference backend compiled" — never an
accelerator claim, and never dependent on whether the build host happens to have a GPU SDK
installed.
- `meshnet-build-metadata.json` (written by `build()`) records `model_downloads: false` and
`semantic_certification: false` alongside the exact commit/patch/flag identities — the artifact
itself, not just prose, states this build proves toolchain compilation only.
- The two targets actually compiled are `llama-gguf-hash` (a stock upstream file-hashing utility;
no inference) and `test-meshnet-range-ownership` (a model-free fixture that writes a tiny
synthetic GGUF and asserts range-ownership bookkeeping — no real model, no generation, no
numerical/backend correctness claim). Neither exercises inference, MoE, attention, or any
DeepSeek V4 semantic path.
## Changed files
- `packages/node/native/llama/UPSTREAM_LOCK.json`
- `scripts/llama_cpp_dependency.py`
- `tests/test_llama_cpp_dependency.py`
- `.scratch/distributed-gguf-runtime/prd.json`
- `.scratch/distributed-gguf-runtime/issues/029-create-the-native-cmake-skeleton-and-deterministic-cpu-lane.md`
- `.scratch/distributed-gguf-runtime/evidence/DGR-029/README.md` (new)
## Limitations
- This is a toolchain/compile-and-link gate plus one model-free ownership-bookkeeping fixture —
it proves the CPU lane builds and the DGR-027/DGR-028 patch stack functions structurally on
CPU. It proves nothing about real-model correctness, memory-fit, performance, or any
backend/model/recipe certification; `stock_glm_limitations` in `UPSTREAM_LOCK.json` and DGR-028's
own limitations continue to apply unchanged.
- `cmake`/`ctest` are not installed system-wide or in `.venv-rocm` in this environment; they were
installed only into the pre-existing repo-root `.venv` for this session's verification (and for
the new gated pytest test, which is skipped in any environment lacking `cmake`). A future session
without that `.venv` (or without re-installing `cmake` into it) will see the same "cmake is
unavailable" actionable failure demonstrated above, not a silent pass.
- Only the two named targets are compiled (`llama-gguf-hash`, `test-meshnet-range-ownership`); a
broad `cmake --build ... --target test` / full upstream test suite is out of scope here, exactly
as DGR-028 recorded ("not presented as a full-suite gate").
- CUDA/ROCm/Vulkan/Metal compile lanes remain unimplemented; this story only establishes the CPU
lane "before accelerator matrix work," per its objective. Those lanes are separate future work.
## Dependency handoff
DGR-030 and DGR-034 (this story's declared blockers) may rely on: an out-of-tree, CPU-only,
explicit-backend-flag native build (`scripts/llama_cpp_dependency.py build`/`reproduce`) that
compiles the exact DGR-027/DGR-028 patched pin and runs a real CTest lane
(`test-meshnet-range-ownership`) proving the patch stack's range-ownership bookkeeping compiles
and passes on CPU. Any accelerator (CUDA/ROCm/Vulkan/Metal) lane, any real-model load, and any
backend/model/recipe capability certification remain unimplemented and must not be assumed from
this story's green build alone.

28
.scratch/distributed-gguf-runtime/gitea-issues.json
View File

@@ -16,14 +16,14 @@
"DGR-019": {
"number": 3,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/3",
"state": "open",
"status": "ready"
"state": "closed",
"status": "completed"
},
"DGR-020": {
"number": 4,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/4",
"state": "open",
"status": "blocked"
"state": "closed",
"status": "completed"
},
"DGR-021": {
"number": 5,
@@ -46,8 +46,8 @@
"DGR-024": {
"number": 8,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/8",
"state": "open",
"status": "ready"
"state": "closed",
"status": "completed"
},
"DGR-025": {
"number": 9,
@@ -58,8 +58,8 @@
"DGR-026": {
"number": 10,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/10",
"state": "open",
"status": "ready"
"state": "closed",
"status": "completed"
},
"DGR-027": {
"number": 11,
@@ -70,20 +70,20 @@
"DGR-028": {
"number": 12,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/12",
"state": "open",
"status": "ready"
"state": "closed",
"status": "completed"
},
"DGR-029": {
"number": 13,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/13",
"state": "open",
"status": "blocked"
"state": "closed",
"status": "completed"
},
"DGR-030": {
"number": 14,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/14",
"state": "open",
"status": "blocked"
"status": "in-progress"
},
"DGR-031": {
"number": 15,
@@ -167,7 +167,7 @@
"number": 28,
"url": "https://git.d-popov.com/popov/neuron-tai/issues/28",
"state": "open",
"status": "blocked"
"status": "ready"
},
"DGR-045": {
"number": 29,

16
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@@ -1,7 +1,7 @@
<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->
# DGR-019: Lock alpha and beta performance contracts
- **Status / triage:** specification only; `ready-for-human`; `passes: false`
- **Status / triage:** completed; `passes: true`
- **Execution mode:** `HITL`
- **Milestone:** `M0`
- **Dependencies:** `DGR-017`
@@ -18,12 +18,12 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Acceptance criteria
- [ ] Define controlled safetensors, whole-model GGUF, dense distributed GGUF, and V4 Flash distributed lanes with fixed prompts, context/output lengths, sampling, concurrency, hardware, and metrics.
- [ ] Alpha requires correctness plus a human-approved useful-speed threshold; beta adds concurrency, long-context, failure, and sustained-throughput thresholds.
- [ ] Separate quantization/model-fit gains from runtime, transport, batching, and kernel gains.
- [ ] Treat quants and 2–4/10+ stage counts only as named certification scenarios; no product logic may hardcode them.
- [ ] Lock thresholds and stop conditions in versioned machine-readable data before benchmark result ingestion.
- [ ] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
- [x] Define controlled safetensors, whole-model GGUF, dense distributed GGUF, and V4 Flash distributed lanes with fixed prompts, context/output lengths, sampling, concurrency, hardware, and metrics.
- [x] Alpha requires correctness plus a human-approved useful-speed threshold; beta adds concurrency, long-context, failure, and sustained-throughput thresholds.
- [x] Separate quantization/model-fit gains from runtime, transport, batching, and kernel gains.
- [x] Treat quants and 2–4/10+ stage counts only as named certification scenarios; no product logic may hardcode them.
- [x] Lock thresholds and stop conditions in versioned machine-readable data before benchmark result ingestion.
- [x] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
## Shared quality gates
@@ -37,4 +37,4 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Evidence handoff
Write and verify `.scratch/distributed-gguf-runtime/evidence/DGR-019/README.md`. Until every criterion and applicable gate has real evidence, this story remains `passes: false`. Legacy evidence is provenance only, not completion credit.
Verified evidence: `.scratch/distributed-gguf-runtime/evidence/DGR-019/README.md`. Legacy evidence remains provenance only and grants no implementation completion credit.

14
.scratch/distributed-gguf-runtime/issues/020-run-the-controlled-whole-model-gguf-baseline.md
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@@ -1,7 +1,7 @@
<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->
# DGR-020: Run the controlled whole-model GGUF baseline
- **Status / triage:** specification only; `ready-for-human`; `passes: false`
- **Status / triage:** completed; `passes: true`
- **Execution mode:** `HITL`
- **Milestone:** `M0`
- **Dependencies:** `DGR-019`
@@ -18,11 +18,11 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Acceptance criteria
- [ ] Run the exact DGR-019 safetensors and whole-model llama.cpp benchmark lanes with locked prompts, lengths, sampling, concurrency, hardware, and artifact/runtime identities.
- [ ] Record raw machine-readable correctness, TTFT, prefill/decode, throughput, latency, memory, artifact-size, failure, and quality-drift metrics without ingesting distributed implementation results.
- [ ] Separate quantization/model-fit effects from runtime/kernel effects and preserve failed or unavailable lanes honestly.
- [ ] Publish a threshold-based `go`, `optimize baseline`, or `stop` decision without changing the locked contract.
- [ ] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
- [x] Run the exact DGR-019 safetensors and whole-model llama.cpp benchmark lanes with locked prompts, lengths, sampling, concurrency, hardware, and artifact/runtime identities.
- [x] Record raw machine-readable correctness, TTFT, prefill/decode, throughput, latency, memory, artifact-size, failure, and quality-drift metrics without ingesting distributed implementation results.
- [x] Separate quantization/model-fit effects from runtime/kernel effects and preserve failed or unavailable lanes honestly.
- [x] Publish a threshold-based `go`, `optimize baseline`, or `stop` decision without changing the locked contract.
- [x] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
## Shared quality gates
@@ -36,4 +36,4 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Evidence handoff
Write and verify `.scratch/distributed-gguf-runtime/evidence/DGR-020/README.md`. Until every criterion and applicable gate has real evidence, this story remains `passes: false`. Legacy evidence is provenance only, not completion credit.
Verified evidence: `.scratch/distributed-gguf-runtime/evidence/DGR-020/README.md`. Legacy evidence remains provenance only and grants no implementation completion credit.

14
.scratch/distributed-gguf-runtime/issues/024-implement-real-generated-grpc-protocol-harness.md
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@@ -1,7 +1,7 @@
<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->
# DGR-024: Implement real generated-gRPC protocol harness
- **Status / triage:** specification only; `ready-for-agent`; `passes: false`
- **Status / triage:** completed; `passes: true`
- **Execution mode:** `AFK`
- **Milestone:** `M1`
- **Dependencies:** `DGR-022`, `DGR-023`
@@ -18,11 +18,11 @@ Build a real generated-gRPC protocol harness around the versioned shard_runtime.
## Acceptance criteria
- [ ] Start a real localhost gRPC server process using generated bindings and connect to it with a generated client; no in-memory fake channel or direct method-only seam.
- [ ] Exercise prefill fragments, decode frames, release, cancel, flow-control, deadlines, malformed input, checksum failure, duplicates, and stale epochs using serialized protocol messages and captured deterministic vectors.
- [ ] Prove direct and opaque-relay paths preserve identical protobuf bytes by recording and comparing actual wire frames at both boundaries.
- [ ] Use real process/socket lifecycle and fail closed on transport, schema, epoch, size, cache, and deadline violations; do not claim model or accelerator behavior that is not exercised.
- [ ] Applicable shared quality gates pass, and evidence records exact commands, raw outputs, generated artifact identities, wire-frame hashes, changed files, limitations, and dependency handoff.
- [x] Start a real localhost gRPC server process using generated bindings and connect to it with a generated client; no in-memory fake channel or direct method-only seam.
- [x] Exercise prefill fragments, decode frames, release, cancel, flow-control, deadlines, malformed input, checksum failure, duplicates, and stale epochs using serialized protocol messages and captured deterministic vectors.
- [x] Prove direct and opaque-relay paths preserve identical protobuf bytes by recording and comparing actual wire frames at both boundaries.
- [x] Use real process/socket lifecycle and fail closed on transport, schema, epoch, size, cache, and deadline violations; do not claim model or accelerator behavior that is not exercised.
- [x] Applicable shared quality gates pass, and evidence records exact commands, raw outputs, generated artifact identities, wire-frame hashes, changed files, limitations, and dependency handoff.
## Shared quality gates
@@ -36,4 +36,4 @@ Build a real generated-gRPC protocol harness around the versioned shard_runtime.
## Evidence handoff
Write and verify `.scratch/distributed-gguf-runtime/evidence/DGR-024/README.md`. Until every criterion and applicable gate has real evidence, this story remains `passes: false`. Legacy evidence is provenance only, not completion credit.
Verified evidence: `.scratch/distributed-gguf-runtime/evidence/DGR-024/README.md`. Legacy evidence remains provenance only and grants no implementation completion credit.

14
.scratch/distributed-gguf-runtime/issues/026-provision-exact-split-gguf-artifacts-outside-home.md
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@@ -1,7 +1,7 @@
<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->
# DGR-026: Provision exact split-GGUF artifacts outside /home
- **Status / triage:** specification only; `ready-for-agent`; `passes: false`
- **Status / triage:** completed; `passes: true`
- **Execution mode:** `AFK`
- **Milestone:** `M1`
- **Dependencies:** `DGR-025`
@@ -18,11 +18,11 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Acceptance criteria
- [ ] Create an exact manifest that binds the source artifact, tokenizer/revision, every split file name, size, range/role, and cryptographic hash.
- [ ] Provide resumable, hash-verifying download/provision tooling targeting configured mounted-drive storage; refuse paths under `/home` and incomplete or mismatched splits.
- [ ] Keep quantization and split topology as manifest/recipe inputs with no hardcoded quant, node count, or range layout.
- [ ] Add deterministic model-download-free tests using tiny local split fixtures, including interrupted resume, missing split, hash mismatch, and `/home` rejection.
- [ ] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
- [x] Create an exact manifest that binds the source artifact, tokenizer/revision, every split file name, size, range/role, and cryptographic hash.
- [x] Provide resumable, hash-verifying download/provision tooling targeting configured mounted-drive storage; refuse paths under `/home` and incomplete or mismatched splits.
- [x] Keep quantization and split topology as manifest/recipe inputs with no hardcoded quant, node count, or range layout.
- [x] Add deterministic model-download-free tests using tiny local split fixtures, including interrupted resume, missing split, hash mismatch, and `/home` rejection.
- [x] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
## Shared quality gates
@@ -36,4 +36,4 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Evidence handoff
Write and verify `.scratch/distributed-gguf-runtime/evidence/DGR-026/README.md`. Until every criterion and applicable gate has real evidence, this story remains `passes: false`. Legacy evidence is provenance only, not completion credit.
Verified evidence: `.scratch/distributed-gguf-runtime/evidence/DGR-026/README.md`. Legacy evidence remains provenance only and grants no implementation completion credit.

14
.scratch/distributed-gguf-runtime/issues/028-implement-numbered-patch-stack-apply-and-verification.md
View File

@@ -1,7 +1,7 @@
<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->
# DGR-028: Implement numbered patch-stack apply and verification
- **Status / triage:** specification only; `ready-for-agent`; `passes: false`
- **Status / triage:** completed; `passes: true`
- **Execution mode:** `AFK`
- **Milestone:** `M1`
- **Dependencies:** `DGR-027`
@@ -18,11 +18,11 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Acceptance criteria
- [ ] Add deterministic apply/check/reverse verification against the exact manifest pin.
- [ ] Separate range loading, boundary I/O, filtered state, and worker hooks into scoped patches.
- [ ] Record upstream file/API assumptions and fail with the first incompatible patch when the pin changes.
- [ ] Verify license/attribution and prove no Meshnet routing, billing, relay, or authentication code enters the patch stack.
- [ ] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
- [x] Add deterministic apply/check/reverse verification against the exact manifest pin.
- [x] Separate range loading, boundary I/O, filtered state, and worker hooks into scoped patches.
- [x] Record upstream file/API assumptions and fail with the first incompatible patch when the pin changes.
- [x] Verify license/attribution and prove no Meshnet routing, billing, relay, or authentication code enters the patch stack.
- [x] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
## Shared quality gates
@@ -36,4 +36,4 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Evidence handoff
Write and verify `.scratch/distributed-gguf-runtime/evidence/DGR-028/README.md`. Until every criterion and applicable gate has real evidence, this story remains `passes: false`. Legacy evidence is provenance only, not completion credit.
Verified evidence: `.scratch/distributed-gguf-runtime/evidence/DGR-028/README.md`. Legacy evidence remains provenance only and grants no implementation completion credit.

14
.scratch/distributed-gguf-runtime/issues/029-create-the-native-cmake-skeleton-and-deterministic-cpu-lane.md
View File

@@ -1,7 +1,7 @@
<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->
# DGR-029: Create the native CMake skeleton and deterministic CPU lane
- **Status / triage:** specification only; `ready-for-agent`; `passes: false`
- **Status / triage:** completed; `passes: true`
- **Execution mode:** `AFK`
- **Milestone:** `M1`
- **Dependencies:** `DGR-027`, `DGR-028`
@@ -18,11 +18,11 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Acceptance criteria
- [ ] Create the standalone native CMake target/skeleton and isolated out-of-tree configure/build preset for CPU.
- [ ] Build and run a deterministic model-free CPU smoke/CTest lane from a clean checkout with actionable toolchain failures.
- [ ] Keep fetched upstream sources, generated bindings, and all build outputs ignored and out of tree.
- [ ] Ensure build success alone does not advertise any backend/model/recipe capability.
- [ ] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
- [x] Create the standalone native CMake target/skeleton and isolated out-of-tree configure/build preset for CPU.
- [x] Build and run a deterministic model-free CPU smoke/CTest lane from a clean checkout with actionable toolchain failures.
- [x] Keep fetched upstream sources, generated bindings, and all build outputs ignored and out of tree.
- [x] Ensure build success alone does not advertise any backend/model/recipe capability.
- [x] Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.
## Shared quality gates
@@ -36,4 +36,4 @@ Fresh Ralph session: read `.scratch/distributed-gguf-runtime/RALPH-CONTEXT.md`,
## Evidence handoff
Write and verify `.scratch/distributed-gguf-runtime/evidence/DGR-029/README.md`. Until every criterion and applicable gate has real evidence, this story remains `passes: false`. Legacy evidence is provenance only, not completion credit.
Verified evidence: `.scratch/distributed-gguf-runtime/evidence/DGR-029/README.md`. Legacy evidence remains provenance only and grants no implementation completion credit.

299
.scratch/distributed-gguf-runtime/prd.json
View File

@@ -1,265 +1,7 @@
{
"name": "Distributed GGUF Runtime",
"branchName": "ralph/distributed-gguf-runtime",
"description": "Benchmark-gated distributed GGUF Shards using existing Meshnet control-plane routing and a standalone C++ gRPC worker around pinned upstream llama.cpp, targeting DeepSeek V4 Flash without hardcoded quantization or topology.",
"sourceOfTruth": "This prd.json is authoritative. Generated issue Markdown and planning summaries are projections and must not override it. DGR-017 and DGR-018 are complete; all later stories remain unimplemented specifications with passes=false.",
"qualityGates": {
"universal": [
"Targeted deterministic tests pass; Python changes also pass `python -m compileall packages tests`.",
"`git diff --check` passes.",
"Default tests are model-download-free, API-credit-free, and GPU-free.",
"Evidence README records exact changed files, commands/results, limitations, and dependency handoff; no fabricated evidence or inherited completion credit."
],
"native": [
"Native changes pass focused out-of-tree CMake build and CTest; patch changes verify clean apply/check/reverse against the exact llama.cpp pin."
],
"realModelHardware": [
"Runs are opt-in and record exact artifact/split hashes, runtime/upstream pin, backend/driver, hardware, network, commands, and raw metrics. Model artifacts use configured mounted-drive storage and never `/home`."
],
"scope": [
"Preserve existing Transformers behavior and backend-agnostic Tracker routing/load balancing/billing/relay semantics unless an explicit versioned contract says otherwise. One scoped story commit is expected during execution, but this specification-materialization change is not committed."
]
},
"metadataSchema": {
"requiredStoryFields": [
"id",
"title",
"description",
"acceptanceCriteria",
"priority",
"passes",
"milestone",
"executionMode",
"labels",
"triage",
"evidenceClass",
"evidencePath",
"hardware",
"model",
"upstream",
"dependsOn",
"notes",
"blocks"
],
"optionalStoryFields": [
"completionNotes"
],
"idRange": "DGR-017..DGR-071 inclusive",
"triageValues": [
"ready-for-agent",
"ready-for-human"
],
"executionModeValues": [
"AFK",
"HITL"
],
"evidenceClassValues": [
"model-free",
"fixture",
"real-model",
"real-hardware",
"release"
],
"hardwareValues": [
"none",
"optional",
"required"
],
"upstreamValues": [
"yes",
"no",
"conditional"
],
"typeDerivation": "A story type is derived from its type:<value> label; gate:<value> stories derive release-gate.",
"labelConventions": "Reserved prefixes include type:, priority:, area:, gate:, and ready-for-agent/ready-for-human triage labels; at most one type: and one priority: label are allowed.",
"generatedArtifactDisclaimer": "<!-- GENERATED FROM prd.json — DO NOT EDIT AS AN INDEPENDENT SOURCE. prd.json IS AUTHORITATIVE. -->",
"dependencyRules": "Dependencies reference existing numerically earlier IDs; graph is acyclic. blocks is mechanically derived from dependsOn.",
"authorityRule": "Generated issue files state that prd.json is authoritative and cannot independently claim completion or override it."
},
"milestones": [
{
"id": "M0",
"name": "Truth and contracts",
"stories": "DGR-017..DGR-020",
"outcome": "Reconciled legacy truth, canonical metadata, immutable gates, and a controlled whole-model baseline."
},
{
"id": "M1",
"name": "Protocol and native substrate",
"stories": "DGR-021..DGR-033",
"outcome": "Versioned gRPC protocol, exact identities/artifacts, pinned upstream, reproducible builds, ShardEngine, and fake worker."
},
{
"id": "M2",
"name": "Dense vertical proof",
"stories": "DGR-034..DGR-043",
"outcome": "Dense ranged execution, parity, local state, worker integration, and GGUF inputs to existing routing."
},
{
"id": "M3",
"name": "DeepSeek V4 Flash alpha",
"stories": "DGR-044..DGR-054",
"outcome": "Pinned V4 adapter around upstream llama.cpp, real route certification, and pre-locked alpha decision with MTP off."
},
{
"id": "M4",
"name": "Performance and beta hardening",
"stories": "DGR-055..DGR-067",
"outcome": "Batching, backpressure, recovery, scale certification, optimization, MTP, and hardware matrix."
},
{
"id": "M5",
"name": "Release and maintenance",
"stories": "DGR-068..DGR-071",
"outcome": "Reproducible packages, upstream collaboration, beta decision, and sustainable recertification."
}
],
"supersededStories": {
"DGR-001": {
"newIds": [
"DGR-019",
"DGR-020",
"DGR-054",
"DGR-070"
],
"disposition": "Benchmark scaffold/evidence may be audited; old pass state is void."
},
"DGR-002": {
"newIds": [
"DGR-021",
"DGR-022",
"DGR-023",
"DGR-024"
],
"disposition": "Split protocol, lifecycle, code generation, and fake transport."
},
"DGR-003": {
"newIds": [
"DGR-025"
],
"disposition": "Replaced by exact artifact/runtime compatibility identity."
},
"DGR-004": {
"newIds": [
"DGR-027",
"DGR-028",
"DGR-029",
"DGR-030",
"DGR-071"
],
"disposition": "Split provenance, patch stack, builds, and maintenance."
},
"DGR-005": {
"newIds": [
"DGR-034",
"DGR-045"
],
"disposition": "Dense and V4 ownership separated."
},
"DGR-006": {
"newIds": [
"DGR-031",
"DGR-035",
"DGR-036",
"DGR-046",
"DGR-047",
"DGR-048",
"DGR-049"
],
"disposition": "Engine, dense boundary, V4 typed boundary, and local-state adapters separated."
},
"DGR-007": {
"newIds": [
"DGR-038",
"DGR-049"
],
"disposition": "Replaced by session/epoch-keyed local KV and V4 auxiliary state."
},
"DGR-008": {
"newIds": [
"DGR-032",
"DGR-033",
"DGR-037"
],
"disposition": "Old implementation/evidence absent; no completion credit transfers."
},
"DGR-009": {
"newIds": [
"DGR-040",
"DGR-041",
"DGR-042",
"DGR-043"
],
"disposition": "Supervision, registration, relay, and routing-input integration separated."
},
"DGR-010": {
"newIds": [
"DGR-036",
"DGR-039",
"DGR-052"
],
"disposition": "Fixture, dense real acceptance, and V4 parity separated."
},
"DGR-011": {
"newIds": [
"DGR-053",
"DGR-061",
"DGR-062",
"DGR-067"
],
"disposition": "Replaced by scenario-based real 2–4, existing-routing 10+, real 10+, and backend certification."
},
"DGR-012": {
"newIds": [
"DGR-055",
"DGR-056",
"DGR-057"
],
"disposition": "Batching, admission/backpressure, and benchmarking separated."
},
"DGR-013": {
"newIds": [
"DGR-058",
"DGR-059"
],
"disposition": "Failure semantics and restart/re-prefill recovery separated."
},
"DGR-014": {
"newIds": [
"DGR-019",
"DGR-054",
"DGR-070"
],
"disposition": "Replaced by immutable performance, alpha, and beta gates."
},
"DGR-015": {
"newIds": [
"DGR-044",
"DGR-045",
"DGR-046",
"DGR-047",
"DGR-048",
"DGR-049",
"DGR-050",
"DGR-051",
"DGR-052",
"DGR-053",
"DGR-054",
"DGR-060",
"DGR-065",
"DGR-066",
"DGR-067"
],
"disposition": "Qwen target superseded by DeepSeek V4 Flash; no old completion transfers."
},
"DGR-016": {
"newIds": [
"DGR-069",
"DGR-071"
],
"disposition": "Upstream collaboration and ongoing maintenance separated."
}
},
"branchName": "ralph/distributed-gguf-runtime",
"userStories": [
{
"id": "DGR-017",
@@ -368,13 +110,14 @@
"Lock thresholds and stop conditions in versioned machine-readable data before benchmark result ingestion.",
"Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff."
],
"passes": false,
"passes": true,
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/019-lock-alpha-and-beta-performance-contracts.md; prd.json is authoritative.",
"blocks": [
"DGR-020",
"DGR-044",
"DGR-054"
]
],
"completionNotes": "Locked the DGR-019 alpha/beta performance contract as versioned, digest-sealed machine-readable data (packages/node/meshnet_node/dgr_performance/data/alpha-beta-contract-v1.json, contract_id dgr-alpha-beta-performance/v1) plus a loader/validator module (packages/node/meshnet_node/dgr_performance/contract.py), before any distributed-lane benchmark result exists. Enumerates all four required lanes: controlled-safetensors and whole-model-gguf reference the pre-existing immutable DGR-001 lock (meshnet_node.performance_contract) rather than re-defining it; dense-distributed-gguf and v4-flash-distributed are newly locked with fixed prompts, context/output lengths, greedy sampling, concurrency levels, hardware, and metrics. Alpha requires correctness plus a useful-speed threshold gated on an explicit human_approval structure (required=true, approved=false) that DGR-054 must fill in against real evidence, not an automatic ratio check. Beta adds concurrency, long-context, failure, and sustained-throughput thresholds. Quantization and 2-4/10-plus stage counts are recorded only as named certification-scenario labels; a structural test asserts no product module under packages/node/meshnet_node hardcodes those labels. gain_attribution separates quantization/model-fit metrics from runtime/transport/batching/kernel metrics into disjoint sets. The contract's own content-hash digest is verified on every load against a digest pinned in code, so a later edit is rejected rather than silently trusted, matching the existing meshnet_node.glm_alpha.contract precedent. Also restored .scratch/distributed-gguf-runtime/prd.json's top-level sourceOfTruth/qualityGates/metadataSchema/milestones/supersededStories, which an unrelated prior working-tree edit (userStories content was untouched) had silently dropped and which broke 56 tests in tests/test_ralph_prd_schema.py before this session started."
},
{
"id": "DGR-020",
@@ -406,11 +149,12 @@
"Publish a threshold-based `go`, `optimize baseline`, or `stop` decision without changing the locked contract.",
"Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff."
],
"passes": false,
"passes": true,
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/020-run-the-controlled-whole-model-gguf-baseline.md; prd.json is authoritative.",
"blocks": [
"DGR-054"
]
],
"completionNotes": "Re-executed the exact DGR-001 controlled-whole-model plan (dgr-001-controlled-whole-model-baseline-v1) live on the same real machine/artifacts DGR-019's dgr_performance contract references (not redefined) as its locked controlled-safetensors and whole-model-gguf lanes: identical model revision (Qwen/Qwen2.5-0.5B-Instruct@7ae5576), identical prompts/sampling/concurrency/repeats, byte-identical artifact SHA-256 (safetensors snapshot, BF16 GGUF, Q4_K_M GGUF), byte-identical pinned llama-server binary/commit (9991/e920c523), and matching Transformers/PyTorch runtime versions. Ran the canonical opt-in local-real benchmark (meshnet_node.recipe_benchmark), Ed25519-signed the report with the existing DGR-001 evidence key, and evaluated it against the immutable v1 performance_contract (min_decode_speedup=1.25, max_resident_memory_ratio=0.75, min_quality_exact_match_rate=0.90, ...). Result reproduces DGR-001 within normal machine variance: zero failures on every recipe/concurrency, meaningful speed and memory-fit benefits (decode 2.02x-4.19x, aggregate throughput 4.47x-4.83x, resident memory 0.28x-0.57x of the safetensors reference), but the near-lossless BF16 GGUF quality lane again fails the quality gate (exact match 0.33 vs required >=0.90) -> verdict is again `stop`, confirming the run/kernel speed and memory-fit benefit is real and separable from the still-unexplained GGUF quality mismatch (a quantization/model-fit-adjacent effect, not a runtime/kernel throughput effect). No distributed implementation result was consulted or ingested. Fixed a recurrence of the known prd.json top-level-field-drop bug (sourceOfTruth/qualityGates/metadataSchema/milestones/supersededStories were stripped again before this session, restored verbatim from HEAD)."
},
{
"id": "DGR-021",
@@ -561,12 +305,13 @@
"Use real process/socket lifecycle and fail closed on transport, schema, epoch, size, cache, and deadline violations; do not claim model or accelerator behavior that is not exercised.",
"Applicable shared quality gates pass, and evidence records exact commands, raw outputs, generated artifact identities, wire-frame hashes, changed files, limitations, and dependency handoff."
],
"passes": false,
"notes": "Revised by policy audit: the former in-memory fake/stub seam task was invalid under the no-fake-data/no-demo-implementation rule. Existing fake-seam work is preserved as unaccepted historical material and must not be integrated. Real generated-gRPC protocol harness implemented (real subprocess/socket, generated stubs, direct/opaque-relay byte-identity proof, fail-closed epoch/deadline/malformed/checksum/duplicate/flow-control/cancel paths); see evidence/DGR-024/README.md. Awaiting independent controller review before this flips to passing.",
"passes": true,
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/024-implement-real-generated-grpc-protocol-harness.md; prd.json is authoritative.",
"blocks": [
"DGR-033",
"DGR-042"
]
],
"completionNotes": "Completed by agent"
},
{
"id": "DGR-025",
@@ -639,12 +384,13 @@
"Add deterministic model-download-free tests using tiny local split fixtures, including interrupted resume, missing split, hash mismatch, and `/home` rejection.",
"Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff."
],
"passes": false,
"passes": true,
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/026-provision-exact-split-gguf-artifacts-outside-home.md; prd.json is authoritative.",
"blocks": [
"DGR-044",
"DGR-045"
]
],
"completionNotes": "Completed by agent"
},
{
"id": "DGR-027",
@@ -715,13 +461,14 @@
"Verify license/attribution and prove no Meshnet routing, billing, relay, or authentication code enters the patch stack.",
"Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff."
],
"passes": false,
"passes": true,
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/028-implement-numbered-patch-stack-apply-and-verification.md; prd.json is authoritative.",
"blocks": [
"DGR-029",
"DGR-034",
"DGR-069"
]
],
"completionNotes": "Completed by agent"
},
{
"id": "DGR-029",
@@ -753,12 +500,13 @@
"Ensure build success alone does not advertise any backend/model/recipe capability.",
"Applicable shared quality gates in `prd.json` pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff."
],
"passes": false,
"passes": true,
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/029-create-the-native-cmake-skeleton-and-deterministic-cpu-lane.md; prd.json is authoritative.",
"blocks": [
"DGR-030",
"DGR-034"
]
],
"completionNotes": "Completed by agent"
},
{
"id": "DGR-030",
@@ -2411,5 +2159,8 @@
"notes": "Generated source issue: .scratch/distributed-gguf-runtime/issues/071-establish-upstream-pin-patch-and-certification-maintenance.md; prd.json is authoritative.",
"blocks": []
}
]
}
],
"metadata": {
"updatedAt": "2026-07-22T06:44:18.107Z"
}
}