serverAppConfigs/serverAppConfigs-docs/LLM/frank-primary-radiance-qwen38-native-fp8.md

# frank-primary — Radiance (StillDeadcode), Qwen3.8-Flash-Next-FP8 NATIVE, 2× R9700 TP=2

**Status: ACTIVE 2026-10-05 →** · **Host:** Dankserver (192.168.0.235) · **Port:** 7770 · **GPU:** 2× Radeon AI PRO R9700 (gfx1201), TP=2

The FreeToken PR #587 endpoint was replaced by the **radiance engine** (C++/HIP,
libr4d kernels for gfx1201, no Python in the serving path) driving the
digest-pinned image `stilldeadcode/radiance@sha256:4c3f484564bb2872784e4…`
(v1.0.7 line, 287 MiB, `libr4d@0.5.0`) as a plain `podman run` through
`scripts/serve-frank-primary.sh` under the **root systemd unit**
(`frank-primary.service`, `User=dank`, `LimitMEMLOCK=infinity`). Same port,
same served alias (`frank-primary`), same container identity
(`frank-primary` = the unit name). Rollback: git tag
`frank-primary-freetoken-pr587-20261005` (FreeToken trio + Dockerfile), image
`localhost/frank-primary-freetoken:pr587-77a7201`, payload
`/home/dank/models/Qwen3.8-Flash-Next-Uncensored-FP8`.

## Why radiance

- **TP=2 is real here.** FreeToken's TP=2 dies in the `pynccl.cu` ROCm JIT
  (`cuda_runtime.h` unresolvable for gfx1201 — probed 2026-10-06); the
  second R9700 idled. Radiance's TP wire is libr4d's own one-shot
  all-reduce (no RCCL), legal on this board since the 2026-09-20 swap
  (ProArt B850, x8/x8 on CPU root ports, `Routing+`/`ReqEn+` everywhere).
- **Native FP8 end to end** (Frank's call): the official
  `Qwen/Qwen3.8-Flash-Next-FP8` checkpoint keeps its modelopt block-FP8
  encoding — no requantisation, no calibration run, no 4-bit codebook.
- **Every tier is explicit and measured**, not an estimator: placement
  `expert_tiered` with a pinned host pool, `--ngram-placement ram` for the
  47.7 GiB PLE table, `--expert-vs-cache-ratio 0.82` (the publisher's
  measured 99 %-hit point; 0.87 already collapses to 0 %), fp8 KV.

## The payload: native FP8, reshaped then converted (one recipe rule)

- **Raw checkpoint**: `/home/dank/models/Qwen/Qwen3.8-Flash-Next-FP8`
  (ungated repo, 172.8 GB, 131 shards + index + tokenizer + vision
  configs). Fetched by `scripts/download-frank-primary.sh` (vendored
  `hfget.sh`, curl+jq, no HF token needed) and **verified byte-for-byte**:
  all 131 shards sha256-match the Hub LFS oids (2026-10-05, log
  `/home/dank/logs/verify-qwen38-official-fp8.log`).
- **The container**: `/home/dank/models/rad/qwen4exp-fp8-native.rad`
  (~161 GiB; floor `FRANK_PRIMARY_RAD_MIN_MIB=158000` in the env gates a
  truncated convert). Built by `scripts/build-frank-primary-rad.sh`:
  1. stage `/home/dank/models/stage-qwen4exp-fp8` — `config.json` with
     **`quantization_config` dropped** + relative symlinks into the raw
     checkout;
  2. `stack-qwen38-official-fp8.py` reshapes the staging dir — two
     transforms, both value-preserving (script docstring carries the full
     argument): the plugin maps the STACKED expert layout
     (`mlp.experts.gate_up_proj` `[512,1280,2560]` + `_scale_inv` at the
     same index) while the official repo ships per-expert unfused tensors,
     so staging byte-stacks all 49 stacks' (48 trunk + MTP) 512 experts
     with NO requantisation; and the PLE table ships as 128 **scaleless**
     E4M3 shards + one bf16 scalar (1.9931793212890625e-04) while the
     plugin's fp8 branch wants the codes beside a ONE-ELEMENT bf16 scale
     plane — so staging decodes to a single bf16 `shard_0` with the
     checkpoint's own scale (e4m3 decode and the scale are both exact in
     bf16);
  3. `rad-convert` with ONE `--quant` rule — pure copy for everything else
     (every weight keeps the checkpoint's block-FP8 planes: `X.weight`
     E4M3 codes + `X.weight_scale_inv` bf16 `[128×128]` scales) — and the
     rtn rule re-encodes the bf16 PLE table at the same fixed scale, an
     exact round-trip (nearest-code distance 2⁻³ vs the bf16 rounding
     perturbation 2⁻⁹): the container gets the checkpoint's own PLE codes
     plus the one-element scale plane (`blk.1.ple_ngram.scale`, view {1});
  4. `rad-info` summary + size floor.
- **Why the staging dir is mandatory** (the descriptor law, spec §2.4):
  the plugin is selected by the exact `(arch_id, quant descriptor)` pair
  with no fallback. A raw official checkpoint carries
  `quantization_config.quant_method: "fp8"` → descriptor `"fp8"` → **no
  shipped plugin claims `(qwen4exp, "fp8")`** — raw serve AND unmodified
  convert both refuse. The shipped `qwen4exp_fp8` plugin claims
  `(qwen4exp, "")` (recipe-built containers). `rad_convert.cpp` writes
  `w.set_quant(meta.quant)` into the header, so the staged config's empty
  quant method flows through as the container descriptor while **every
  weight stays FP8 data**. Native precision is untouched; only the
  selection key differs.
- `--plan-only` first: the convert's declare phase is the engine's own,
  so a plan that resolves every op will boot. The convert runs card-less
  (declare = CPU-side layout queries); add `--device` only if a plugin
  load ever demands it.

## The shape (`scripts/frank-primary.env`, every value commented there)

| Knob | Value | Why |
|---|---|---|
| Image | `stilldeadcode/radiance@sha256:4c3f4845…` | digest-pinned INDEX digest (RepoDigests also carry the per-arch manifest `1c582005…`; the image ID `69d05724…` is the config digest, NOT a manifest digest — pinning it sends `podman run` to the network); entrypoint = engine, tools (`rad-convert`/`rad-info`/`rad-tune`/`rad-kbench`) on PATH |
| Container | `frank-primary` | identity = service name across runtimes; legacy list retires `frank-primary-qwen frank-primary-r9v qwen-fp8 glm-probe` |
| `--tp 2 --tp-wire wht6` | both R9700s | fused WHT-6 lossy wire: +5.6–6.3 % prefill, ~−1.3 % 8-stream decode at TP2; `--tp-wire-min-kb` stays engine default (128 KiB) |
| `--max-num-seqs 2` | first boot | Frank: "parallelism = 2 to start". Raise only after a real-traffic look at slot occupancy + the ledger's KV headroom line. The fused all-reduce row count is `seqs × (1 + spec) = 8` |
| `--max-model-len 200000` | served window | native 262,144; the publisher's production value and what `models.yml` quotes. Longer prompt = refused, never truncated |
| `--placement expert_tiered --host-pool-mib 40960` | pinned expert pool **per rank** | native FP8 experts are 112.8 GiB total (56.4 GiB/rank slice) vs ~29 GiB at the 4-bit publisher shape — the pool is the price of native precision. Resize from the boot ledger's coverage line, never arithmetic |
| `--gpu-headroom-mib 96 --expert-vs-cache-ratio 0.82` | publisher values | 0.82 = measured 99 % expert-cache hit; 0.87 → 0 % (the cliff) |
| `--kv-cache-dtype fp8` | **7.32 KiB/token** | 12 QSA full-attention layers, 2 KV heads × 256 dim, K+V; a 200K-token sequence is 1.43 GiB. KV is sized from the VRAM the ratio leaves |
| `--num-speculative-tokens 3` | MTP head | the checkpoint carries `mtp.*` (3,101 tensors, `mtp_num_hidden_layers: 1`); the plugin's probe returns draft depth 3 — the publisher's operating point |
| `--max-num-batched-tokens 2048` | prefill chunk | matches the `--checkpoint-interval` default |
| `--prefix-cache-host-mib 4096 --prefix-cache-dir /data/kvcache/frank-primary --prefix-cache-disk-mib 65536` | 3 tiers | host tier pinned (see the ledger), disk tier in `/home/dank/radiance-state` (mounted rw at `/data`; `/` is ext4, mapped-tier-eligible); a session snapshot moves with its blocks |
| `--ngram-placement ram` | **PLE pinned to host RAM** | Frank's pin law. The PLE n-gram table is 51.2 GB (320,001,536 rows × 160 dims = 29 % of all parameters) served via io_uring reads; `ram` **refuses the boot** if memlock is too small |
| `--override-chat-template /templates/template.jinja` | froggeric v22.5 | vendored `scripts/qwen38-froggeric-v22.5.jinja` (28,234 B, `qwen3.8-froggeric-v22.5`); rad-convert bakes the checkpoint's own template, this overrides it, and the engine derives the reasoning/tool-call reply format from it |

**Pinned-RAM ledger** (root unit + `LimitMEMLOCK=infinity` exist for this):
2 × 40 GiB expert pools + 47.7 GiB PLE + 4 GiB prefix host tier + ~2 GiB
spare ≈ **134 GiB**. `ttm.pages_limit` (this kernel has NO `pages_max` —
the two-knob story was stale) caps GPU-mappable pinned pages (default = half
of RAM): the pre-cutover cap was **123 GiB** — BELOW the ledger — so the
serve script's TTM preflight (`FRANK_PRIMARY_TTM_MIN_MIB=140000`) refuses to
start until it is raised. DONE 2026-10-05 pre-cutover: sysfs write of
**52,428,800 pages = 200 GiB** (`/sys/module/ttm/parameters/pages_limit`;
verified read-back; raising at runtime is harmless and allocates nothing).
PERSISTENCE: the sysfs write does not survive reboot — add
`ttm.pages_limit=52428800` to the kernel cmdline at the next scheduled
reboot.

**Per-rank VRAM** at TP2: expert slice 56.4 GiB total across VRAM + host
pool; trunk ~3.75 GiB/rank; token embedding vocab-parallel (~1.18 GiB/rank
— the bf16 table is 2.43 GiB, sharding hands the other half to KV); lm_head
row-sharded; recurrent state 54 MiB/copy/card (2 copies with speculation);
KV from the `0.82`-side remainder of claimed VRAM at 96 MiB headroom.

## The engine contract (all verified in source, not assumed)

- **`/health` == `/ping`**: 200 JSON (`model_id, in_flight, queue_depth`)
  while serving, 503 only while stopping — **the listener binds AFTER the
  full load**, so a bare `curl -fsS http://127.0.0.1:7770/health` gate is
  honest (the deployer loops on it; the FreeToken-era `"status":"ok"` body
  grep is gone). Boot budget 1800 s (publisher `start_period` 15 m); the
  big terms are the ~161 GiB page-in and the host-pool pin.
- **Sampling** (oai.cpp): `temperature, top_p, top_k, min_p, typical_p,
  presence_penalty, frequency_penalty, repetition_penalty, repeat_last_n,
  chat_template_kwargs, reasoning_effort, enable_thinking,
  preserve_thinking` accepted; **unknown params are refused (400)** —
  models.yml's extraBody set is fully inside it; nothing unverified rides
  the wire. `max_tokens` is clamped, not refused; `seed` absent = pick
  one; `response_format` supported; **`logprobs` is refused** (harness
  never sends it).
- **Reasoning**: `--reasoning-format` defaults to `auto` → thinking in
  `reasoning_content` (models.yml `reasoningContentField` matches). Tool
  calls: the qwen3.8 dialect → `message.tool_calls` +
  `finish_reason: tool_calls`. No parser flags anywhere — parsers are
  auto.
- **Vision**: the official checkpoint carries the 27-layer vision tower;
  the engine runs the Qwen-VL processor (patching, pad-token expansion,
  3-part rotary are core). `models.yml` keeps `input: [text, image]`;
  `--mm-max-patches` available.
- **`/metrics`**: vLLM-compatible names + `radiance:*` families — the
  Dankclaw Prometheus job re-scrapes 192.168.0.235:7770 (plain LAN routing
  reaches it; the netavark published-port quirk is same-host only).
  `/stats`, `/sessions`, `/dashboard` for live internals; the repo ships
  `deploy/grafana/radiance.json` if a dashboard is wanted.
- **`n` > 1 requests**: `n` defaults to `max(8, max-num-seqs)`; stop
  strings ≤ 64 × 4096 B. `model` field not enforced.

## Deploy + verify

```bash
# one-time (already done 2026-10-05): payload fetch + sha256 verify + convert
ssh dankserver 'bash /home/dank/frank-primary-build/build-frank-primary-rad.sh --plan-only'   # declare + plan, no bytes
ssh dankserver 'bash /home/dank/frank-primary-build/build-frank-primary-rad.sh'               # full convert + rad-info
./scripts/deploy.sh dankserver --service frank-primary
```

Post-cutover checklist (each is observable, not assumed):

1. Unit: `is-active` active, `is-enabled` enabled, container answers
   `/health` with 200 JSON.
2. Boot ledger (engine stdout → `/home/dank/logs/frank_primary.log`):
   P2P probe per rank pair, TP=2 shard placement, expert pool coverage
   line ("backs N % of the worst case … M full-length sessions"), KV pool
   bytes, PLE pinned-RAM line, drafter depth 3, prefix tiers.
3. MTP live: a completion's `timings` object shows draft/accept counts;
   `radiance:*spec*` metrics in `/metrics`.
4. Froggeric template: a probe prompt renders the v22.5 shape
   (tool-call + thinking turn both exercise it).
5. Vision: a ≥256 px solid-color PNG answers the exact color through an
   `image_url` content part.
6. Prometheus target `frank-primary` green (not never-green).

## Tuning levers (in order of likely use)

- **`FRANK_PRIMARY_MAX_SEQS`**: raise 2 → 3/4 only when the ledger's KV
  headroom line and real slot occupancy agree; each slot buys a
  recurrent-state copy (54 MiB/card) and shrinks the per-request KV share.
- **`FRANK_PRIMARY_HOST_POOL_MIB`**: the ledger's coverage line is the
  oracle — it prints what the pool backs at the worst case and how many
  full-length sessions fit. RAM budget: pools + PLE + prefix ≤ ~140 GiB of
  the host's 246.
- **`FRANK_PRIMARY_EXPERT_VS_CACHE`**: 0.82 is the measured 99 %-hit
  point; 0.87 zeroes it. Move only with a measured hit-rate reason.
- **`FRANK_PRIMARY_TP_WIRE`**: `wht6` vs `exact` — `exact` trades the
  +5.6 % prefill for bit-exact reductions; the fused one-shot forms are
  declared over the seqs × (1+spec) row bound.
- **`FRANK_PRIMARY_EXTRA_ARGS`**: the boot-ladder escape hatch, expanded
  unquoted.
- **`rad-tune -m <rad> --tp 2`**: benchmarks the tunable space at this
  model's shapes on this machine, writes `$RADIANCE_HOME/tune/<machine>.tune`
  which the engine's selector reads at boot. Declare at the shapes you
  serve (`--tp 2`), or you measure a program the serve never runs.
  `RADIANCE_TUNE` pins a kernel for an A/B — an instrument, not a setting.
- **Diagnostics**: `rad-info` (container: encodings, recipe, profile),
  `--debug-graph` (what declared vs what issued), `rad-kbench` (kernel
  correctness/speed vs libref), `/stats` + `/sessions` (live), and the
  publisher's `scripts/` harnesses (`fnpf`, `fnconc`, `cstep2`, `ident`,
  `mctools`) — note `mcserve/fnstop`-family scripts `pkill` the engine
  binary by name; on this host the service is a systemd unit, so use
  `sudo systemctl stop frank-primary` instead.

## Rollback

| Layer | Path |
|---|---|
| FreeToken (one card, native FP8 safetensors) | `git checkout frank-primary-freetoken-pr587-20261005 -- scripts/frank-primary.env scripts/frank-primary.service scripts/serve-frank-primary.sh scripts/docker/ tests/frank_primary_unit.bats` + redeploy; image `localhost/frank-primary-freetoken:pr587-77a7201` and payload `/home/dank/models/Qwen3.8-Flash-Next-Uncensored-FP8` stay on disk until the window closes |
| tcclaviger vLLM fork (TP=2, shape G) | git tag `frank-primary-vllm-shapeG-20261003` (trio + env lore; image still in dank's rootless storage) |
| 4-bit StillDeadcode publisher shape | `qwen3.8-next-flash-fp8-iq4r-moe.rad` + `--host-pool-mib 12288` — the documented fallback if the native container ever proves unbootable |

Retire the FreeToken-era orcarouter payload to `~/.AGENTTRASH/` only after
the rollback window closes (trash policy, never `rm`).

## Links

- [[LLM/index]] — fleet index
- [[frank-primary-freetoken-pr587]] — the retired FreeToken era
- [[dankserver-qwen38-fp8-expert-offload-tuning]] — the retired tcclaviger vLLM era
- [[Dual-R9700-Cooperation]] — the board swap that made TP=2 legal here
- [[RDNA4 Container Serving]] — rootless-podman GPU laws on these hosts
- `serverAppConfigs-docs/Architecture/Testing Policy.md` — the seam contract