docs: frank-small is Gemma4-12B QAT now — new runbook, Qwen retired as rollback target
AGENTS.md topology, Active Services, the CUDA-quant-KV lesson (f16 is no longer why), and the runbook index. New frank-small-gemma4-12b runbook: payload digests, the SWA/q8 arithmetic behind --fit's 262k window, the MTP-sidecar + ngram-mod chain, the always-accepted reasoning_effort, and the fit-probe error that looks like a fault at boot. The Qwen runbook and both indexes carry the retirement; work log updated.
This commit is contained in:
Frank
@@ -26,7 +26,7 @@ merge absorbed the former `vllmScripts` repo, history preserved).
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|--------|---------|---------|-------|------|
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| Dankserver | `frank-medium` | mainline llama.cpp master fb27a525 (root systemd unit, gfx1201 HIP build) | ajgazin Swift-Qwen3.8-27B-Uncensored-Dynamic-MTP UD-Q8_K_XL + z-lab Qwen3.8-27B-DFlash2 Q8_0 drafter, 2x Radeon AI PRO R9700 in ONE layer-split process (36:29), 327680 ctx over 2 slots of 163840, batch 6144x512, vision (BF16 mmproj) | 7770 |
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| Dankclaw | `frank-large` | halogen-flash-server 0.5.8 (rootless Quadlet) | peonist-ai Qwen3.8-Flash-Next w4b `.hgn` on the gfx1151 iGPU (Strix Halo LPDDR), 200192 ctx per conversation over one 400384-position KV pool / 2 slots, text only | 7770 |
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| Dankclaw | `frank-small` | mainline llama.cpp master 37b53fd (root systemd unit) | ISTA-DASLab Qwen3.8-27B-GSQ-RCO IQ3_S (`-mtp` + BF16 mmproj) on the RTX 3090, 131072 ctx / 1 slot, MTP speculative decoding, the fleet's vision endpoint | 7771 |
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| Dankclaw | `frank-small` | mainline llama.cpp master 37b53fd (root systemd unit) | HauhauCS Gemma4-12B-QAT-Uncensored-Balanced Q4_K_M (BF16 mmproj + MTP assistant sidecar, `draft-mtp,ngram-mod`) on the RTX 3090, `--fit` → 262,144 ctx / 1 slot, q8_0 KV, the fleet's vision endpoint | 7771 |
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Retired endpoints (`frank-npu`, and every prior runtime) are in
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the [runbook index](#runbook-index). The full swap history lives in
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@@ -299,20 +299,31 @@ Rollback: [[frank-large-ik-uncensored]].
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### frank-small — llama.cpp on the RTX 3090 (Dankclaw, ACTIVE)
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Mainline llama.cpp master `37b53fd` as a **root systemd unit** (repo
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Mainline llama.cpp master `37b53fd` (CUDA build with
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`-DGGML_CUDA_FA_ALL_QUANTS=ON`) as a **root systemd unit** (repo
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`scripts/frank-small.service`, `relink_unit`ed into `/etc/systemd/system/`),
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serving `ISTA-DASLab/Qwen3.8-27B-GSQ-RCO-GGUF` at IQ3_S — the `-mtp` build, so
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the model's own Multi-Token Prediction head drives speculative decoding — with
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the BF16 mmproj, on port 7771, 131,072 ctx / 1 slot, f16 KV, greedy default.
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Deployed flags are in `scripts/frank-small.env`; the serve script refuses to
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start if the weights, the projector or the binary are missing.
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serving `HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced` at Q4_K_M.
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The MTP head is a SEPARATE assistant file (`mtp-gemma-4-12B-it.gguf`, 4
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nextn layers) loaded via `--model-draft`; the draftless **ngram-mod**
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matcher chains behind it in the same `--spec-type` value. BF16 mmproj,
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port 7771, q8_0 KV, `CTX_SIZE` unset so `--fit` sizes the pool, 1 slot,
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greedy default. Deployed flags are in `scripts/frank-small.env`; the serve
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script refuses to start if the weights, the projector, the sidecar or the
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binary are missing.
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Verified at deploy (2026-09-16): `/v1/models` reports `frank-small`; a chat
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completion returns content plus `reasoning_content`; a tool call returns
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`tool_calls`; the slot timing lines show `draft acceptance = 0.66–0.94, mean
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len ≈ 3` (MTP engaged); an image request is answered from the projector while
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the halogen side refuses images with a named reason; 22,362 MiB of the card's
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24,576 MiB is in use; `n_slots = 1, n_ctx_slot = 131072`.
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Verified at deploy (2026-09-17): `/v1/models` reports `frank-small`; a
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chat completion returns content plus `reasoning_content`; a tool call
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returns `tool_calls`; the slot timing lines show `draft acceptance =
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0.38–0.46, mean len ≈ 2.2` (MTP engaged); an image request is answered
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from the projector. `--fit` took the FULL window — `n_slots = 1,
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n_ctx_slot = 262144` — because Gemma4's sliding-window pattern keeps the
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q8 KV pool cheap: 11,996 MiB of the card's 24,576 MiB in use. The
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`Gemma4Assistant requires ctx_other to be set` error that prints at boot
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is the fit's own probe (the log calls it normal); the sidecar then loads
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against the real context. Gemma4's template accepts every
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`reasoning_effort` level (all seven probed: 200).
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Runbook: `serverAppConfigs-docs/LLM/frank-small-gemma4-12b.md`.
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Rollback: [[frank-small-qwen38-gsq-rco]].
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### frank-medium — llama.cpp layer split, DFlash2 + ngram-mod (Dankserver, ACTIVE)
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@@ -594,7 +605,9 @@ linked runbooks.
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returns `tool_calls`. Check tool support before routing a role at an endpoint.
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- **Quantized KV on CUDA needs `GGML_CUDA_FA_ALL_QUANTS=ON`** — the same
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option and the same ~12x prefill collapse described in the ROCm note above.
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f16 KV needs nothing, which is why frank-small runs f16.
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f16 KV needs nothing; frank-small ran f16 for that reason until
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2026-09-17, when `build-cuda` was rebuilt with the option ON so the
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endpoint could take q8_0 KV.
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- **llama-bench separates a LIST with `/` and SWEEP values with `,`.** Both
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`-dev` and `-ts` follow this: `-dev CUDA0,Vulkan1` is two *single-device*
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configurations, never one two-device run, and `-ts 0.85,0.15` is two sweep
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@@ -685,7 +698,7 @@ Active:
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| Service | Runbook |
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|---------|---------|
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| frank-large (halogen-flash-server, Dankclaw) | `serverAppConfigs-docs/LLM/halogen-flash-server.md` |
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| frank-small (llama.cpp Qwen3.8-27B GSQ-RCO, Dankclaw) | `serverAppConfigs-docs/LLM/frank-small-qwen38-gsq-rco.md` |
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| frank-small (llama.cpp Gemma4-12B QAT, Dankclaw) | `serverAppConfigs-docs/LLM/frank-small-gemma4-12b.md` |
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| frank-medium (llama.cpp + DFlash2, Dankserver) | `serverAppConfigs-docs/LLM/frank-medium-llamacpp-dflash2.md` |
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| Dankclaw kernel posture (`amd_iommu=off`) | `serverAppConfigs-docs/LLM/dankclaw-iommu-translation-off.md` |
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| Deployment flow + incidents | `serverAppConfigs-docs/LLM/deployment.md` |
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@@ -696,6 +709,7 @@ Retired (rollback targets and history):
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|---------|------|--------|---------|
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| kingjones STRIX Qwen3.8-Flash-Next ROCmFP4 | Dankclaw | 2026-08-30 → 09-11 | `kingjones-strix-rocmfp4.md` |
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| ik_llama.cpp Qwen3.8-Flash-Next-Uncensored i1-Q4_K_M (`frank-large`) | Dankclaw | 2026-09-15 → 09-16 | `frank-large-ik-uncensored.md` |
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| ISTA-DASLab Qwen3.8-27B-GSQ-RCO IQ3_S (`frank-small`) | Dankclaw | 2026-09-16 → 09-17 | `frank-small-qwen38-gsq-rco.md` |
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| agentionai ROCmFP4-FAST imatrix | Dankclaw | 2026-08-29 → 08-30 | `agentionai-fast-imatrix.md` |
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| eemin Qwen3.8-27B ROCmI4 W4A4 MTP | Dankclaw | 2026-08-18 → 08-25 | `eemin-rocmi4-mtp.md` |
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| Kairic Edge IU4 | Dankclaw | 2026-08-22 (same-day revert) | `kairic-edge.md` |
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@@ -0,0 +1,148 @@
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---
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type: reference
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title: frank-small on Dankclaw — llama.cpp, Gemma4-12B QAT Q4_K_M
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description: The active frank-small runbook — mainline llama.cpp on Dankclaw's RTX 3090 serving HauhauCS Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced at Q4_K_M with a separate MTP assistant sidecar chained behind ngram-mod, q8_0 KV, and --fit sizing the full 262k window: identity, payload, KV arithmetic, the spec-decode chain, deployed flags, the client contract, and what to check when it misbehaves.
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tags:
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- llm
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- frank-small
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- dankclaw
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- llama.cpp
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- rtx3090
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- gemma
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- mtp
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- vision
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timestamp: 2026-09-17
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---
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# frank-small — llama.cpp on the RTX 3090 (Gemma4-12B QAT)
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> **ACTIVE since 2026-09-17.** Replaces [[frank-small-qwen38-gsq-rco]]
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> (one-day rollback target). Same unit, same port, same client contract —
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> the model, the drafter shape and the KV type changed.
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## Identity
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| what | value |
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|---|---|
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| runtime | mainline llama.cpp master `37b53fd`, CUDA build **with `-DGGML_CUDA_FA_ALL_QUANTS=ON`** (rebuilt 2026-09-17 for q8 KV) |
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| binary | `/home/dank/GitPackages/llama.cpp-mainline/build-cuda/bin/llama-server` |
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| unit | **root systemd unit** `frank-small.service` (repo `scripts/frank-small.service`, `relink_unit`ed into `/etc/systemd/system/`) |
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| model | `HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced` Q4_K_M |
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| model dir | `/home/dank/models/Gemma4-12B-QAT/` |
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| port | 7771 (alias `frank-small`; `frank-large` keeps 7770) |
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| window | `--fit on` → **262,144** ctx, 1 slot; q8_0 K and V |
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| vision | fleet image path via BF16 mmproj (`input: [text, image]`) |
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## Payload (all sha256-verified against the Hub)
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| file | bytes | sha256 (head…) |
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|---|---|---|
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| `Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced-Q4_K_M.gguf` | 7,381,381,760 | `59656d74…` |
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| `mmproj-Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced-BF16.gguf` | 175,115,264 | `b59e8154…` |
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| `mtp-gemma-4-12B-it.gguf` | 253,707,328 | `c50c91c3…` |
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`sha256.txt` beside them on the host carries the full digests.
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## What the preflight found (GGUF headers, read over HTTP Range)
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- **Target** (`arch gemma4`, 48 blocks): ctx 262144, MHA — 16 kv heads x
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512 dim (no GQA), embedding 3840, rope base 1e6, logit softcap 30,
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**sliding_window 1024**, `swa_type = STANDARD`, per-layer token embeddings
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(PLE) via `LLM_KV_EMBEDDING_LENGTH_PER_LAYER`. 12 full-attention layers
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every 4th (`[3,7,…,47]` implied by `full_attention_interval = 4`).
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48 blocks maps to `LLM_TYPE_UNKNOWN` in the loader's size switch —
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cosmetic only.
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- **mmproj**: clip, vision 224/16 patches, **also carries an audio
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encoder** (`has_audio_encoder=True`) — vision is the fleet contract,
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audio is inert bonus.
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- **MTP sidecar** (`arch gemma4-assistant`): 4 nextn layers, pure
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assistant (no trunk). Its KV **shares** the target's last layers — the
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share lambda at `llama-model.cpp:2662` references
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`llama_model_n_layer(model_other) - 2` for SWA layers. Adding the
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drafter therefore costs no second KV pool.
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## KV arithmetic — why 262k fits
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Per token per layer at q8_0: 16 heads x 512 dim x 1 B x 2 (K,V) =
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**16 KiB** (32 KiB at f16). With SWA_STANDARD and window 1024, the
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sliding layers cache only the window; the full-attention layers cache the
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full context. The engine's own `--fit` measured the combination and took
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the whole 262,144-token window: total footprint at idle is **11,996 MiB**
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of the card's 24,576 MiB, weights included.
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This is the practical payoff of a sliding-window architecture: the naive
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"all-global" worst case was 32 GiB at q8/262k — impossible; the real
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pattern makes the full window the cheapest possible answer.
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## Spec-decode chain
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`--spec-type draft-mtp,ngram-mod` with `--model-draft
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$MODEL_DIR/mtp-gemma-4-12B-it.gguf`:
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- `draft-mtp` is context-backed and reads the assistant sidecar. Two
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context-backed drafters cannot share one process, so the chain carries
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exactly one.
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- `ngram-mod` is draftless and attaches unconditionally, catching
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prompt-echo traffic MTP would miss. It prints **no startup banner** —
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verify behaviorally via the per-task `draft acceptance` line, not the
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load log.
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- Measured at deploy: `draft acceptance = 0.38–0.46, mean len ≈ 2.2`
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(lower acceptance than the retired Qwen in-file MTP's 0.66–0.94, but a
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much smaller model — the point of the swap was the VRAM and the window,
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not acceptance).
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## Deployed flags
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Repo truth: `scripts/frank-small.env` + `scripts/serve-frank-small.sh`.
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Key values: `MODEL_DIR=/home/dank/models/Gemma4-12B-QAT`,
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`MODEL_FILE=Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced-Q4_K_M.gguf`,
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`DRAFT_FILE=mtp-gemma-4-12B-it.gguf`, `CACHE_TYPE_K=V=q8_0`,
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`SPEC_TYPE=draft-mtp,ngram-mod`, `CTX_SIZE` **unset** (→ `--fit on`),
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`PARALLEL=1`, `NGL=999`, `FLASH_ATTN=on`, `--jinja`, `--metrics`,
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greedy `--temp 0.0` server default. The serve script refuses to start on
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any missing file.
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## Client contract
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- `reasoning_content` carries thinking; `preserve_thinking: true` is sent
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by the harness to keep it across turns.
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- **Every `reasoning_effort` level is accepted** (all seven probed
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2026-09-17: 200) — unlike Qwen3.8's template gate. The harness's
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`reasoningEffortMap` in `~/.omp/agent/models.yml` is therefore inert
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but kept as a safety net.
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- Tools work through the `--jinja` template (`tool_calls` verified).
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- Images work through the mmproj (verified with a live JPEG).
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- One slot: a second concurrent request queues behind the first.
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- Harness: `contextWindow: 262144`, `maxTokens: 32768`.
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## Troubleshooting
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- **`llama_init_from_model: failed to initialize the context:
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Gemma4Assistant requires ctx_other to be set` printed at boot** — this
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is the `--fit` probe, not a fault. The engine cannot build the assistant
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context without the target during measurement, logs the (self-described
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normal) error, fits without the extra model, and loads the draft
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against the real context seconds later. Do not restart over it.
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- **Draft looks unengaged**: ngram-mod is silent at load; read the
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`draft acceptance = …` line per task from
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`journalctl -u frank-small` (the server must not be restarted just to
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see this).
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- **Quantized KV regression**: if someone rebuilds `build-cuda` without
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`GGML_CUDA_FA_ALL_QUANTS=ON`, prefill collapses ~12x with q8 KV (see
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the CUDA lesson in AGENTS.md). Check
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`grep FA_ALL_QUANTS build-cuda/CMakeCache.txt` after any rebuild.
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- Logs: `journalctl -u frank-small` (root unit, not quadlet).
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## Rollback
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Redeploying the prior model means repointing `MODEL_DIR`/`MODEL_FILE`/
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`DRAFT_FILE` back to the Qwen trio and `SPEC_TYPE=draft-mtp` — see
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[[frank-small-qwen38-gsq-rco]] for the exact deployed values. The Qwen
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weights were NOT deleted from the host.
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## References
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- `scripts/serve-frank-small.sh` — the actual exec line
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- [[frank-small-qwen38-gsq-rco]] — RETIRED predecessor (rollback)
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- [[halogen-flash-server]] — the sibling endpoint on the iGPU
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- [[x4-pair-experiment]] — why the 3090 serves its own model, not the trunk
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@@ -1,7 +1,7 @@
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---
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type: reference
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title: frank-small on Dankclaw — llama.cpp, Qwen3.8-27B GSQ-RCO IQ3_S
|
||||
description: The active frank-small runbook — mainline llama.cpp on Dankclaw's RTX 3090 serving ISTA-DASLab Qwen3.8-27B-GSQ-RCO at IQ3_S with the model's own MTP head and the BF16 vision projector: identity, KV arithmetic, deployed flags, the MTP contract, the client contract, and what to check when it misbehaves.
|
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description: The RETIRED frank-small runbook (2026-09-16 → 09-17, rollback target) — mainline llama.cpp on Dankclaw's RTX 3090 serving ISTA-DASLab Qwen3.8-27B-GSQ-RCO at IQ3_S with the model's own in-file MTP head and the BF16 vision projector: identity, KV arithmetic, deployed flags, the MTP contract, the client contract, and what to check when it misbehaves.
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tags:
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- llm
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- frank-small
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@@ -16,10 +16,11 @@ timestamp: 2026-09-16
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# frank-small — llama.cpp on the RTX 3090
|
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> **ACTIVE since 2026-09-16.** Created when Dankclaw's inference was re-split:
|
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> [[halogen-flash-server]] took the gfx1151 iGPU back for `frank-large`, which
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> freed the RTX 3090 for this endpoint. Two endpoints, one host: `frank-large`
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> on `:7770`, `frank-small` on `:7771`.
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> **RETIRED 2026-09-17** — replaced by [[frank-small-gemma4-12b]]. Kept as
|
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> the rollback target and the record of the deployment it succeeded.
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> Originally ACTIVE from 2026-09-16, created when Dankclaw's inference was
|
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> re-split: [[halogen-flash-server]] took the gfx1151 iGPU back for
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> `frank-large`, which freed the RTX 3090 for this endpoint.
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## Identity
|
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@@ -87,11 +87,15 @@ frank-small, port 7771]
|
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overlay) on the gfx1151 iGPU — two 200k conversations over one
|
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400,384-position pool, deployed flags, memory model, client contract,
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troubleshooting
|
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- [[frank-small-qwen38-gsq-rco]] — ACTIVE frank-small runbook since 2026-09-16
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- [[frank-small-gemma4-12b]] — ACTIVE frank-small runbook since 2026-09-17
|
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(root systemd unit, port 7771): mainline llama.cpp serving
|
||||
ISTA-DASLab/Qwen3.8-27B-GSQ-RCO IQ3_S on the RTX 3090, with the model's own
|
||||
Multi-Token Prediction head for speculative decoding and the BF16 projector
|
||||
for the fleet's image path
|
||||
HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced Q4_K_M on the RTX
|
||||
3090, with the separate MTP assistant sidecar chained behind ngram-mod,
|
||||
q8_0 KV, and `--fit` sizing the full 262k window into ~12 GiB
|
||||
- [[frank-small-qwen38-gsq-rco]] — RETIRED 2026-09-17 (rollback target): the
|
||||
prior frank-small runbook (2026-09-16 → 09-17), ISTA-DASLab
|
||||
Qwen3.8-27B-GSQ-RCO IQ3_S with the model's own in-file MTP head and
|
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f16 KV at 131k
|
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- [[x4-pair-experiment]] — MEASURED 2026-09-16: what mainline llama.cpp can and
|
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cannot do with the 3090 + Strix Halo pair, over their only link (the 3090's
|
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Gen4 x4). The tensor inventory that decides any split, the single flag (`-ot`)
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@@ -165,11 +165,14 @@ The LLM inference fleet on the two hosts. Full index:
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- [[ciru-activefpx-promptforge]] — the RETIRED v3 CIRU PromptForge runtime on Dankclaw (superseded 2026-08-24)
|
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- [[kingjones-strix-mtp]] — the kingjones Qwen3.8-27B ROCmFP4 STRIX MTP model on Dankclaw (active)
|
||||
- [[dealign-ornith-crack]] — the retired Ornith-1.5-35B-A3B CRACK model on Dankserver (retired 2026-09-02)
|
||||
- [[frank-small-qwen38-gsq-rco]] — the ACTIVE frank-small runbook since
|
||||
2026-09-16: mainline llama.cpp serving ISTA-DASLab/Qwen3.8-27B-GSQ-RCO-
|
||||
GGUF at IQ3_S (own MTP head + BF16 vision projector) on Dankclaw's
|
||||
RTX 3090, port 7771 — the 3090 freed when halogen took the iGPU back for
|
||||
frank-large
|
||||
- [[frank-small-gemma4-12b]] — the ACTIVE frank-small runbook since
|
||||
2026-09-17: mainline llama.cpp serving
|
||||
HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced at Q4_K_M
|
||||
(MTP assistant sidecar + ngram-mod, q8_0 KV, --fit → 262k) on
|
||||
Dankclaw's RTX 3090, port 7771
|
||||
- [[frank-small-qwen38-gsq-rco]] — RETIRED 2026-09-17 (rollback target):
|
||||
the prior frank-small runbook (2026-09-16 → 09-17), ISTA-DASLab
|
||||
Qwen3.8-27B-GSQ-RCO IQ3_S with own in-file MTP head + BF16 projector
|
||||
- [[ikllama-ornith-dankserver]] — the retired ik_llama.cpp runtime for the old frank-small (q8_0 + Hadamard KV cache, split-mode none; 2026-08-26)
|
||||
- [[freetoken-frank-small]] — RETIRED 2026-09-15: the FreeToken/CUDA frank-small runbook, retired with the RTX 3090
|
||||
- [[kairic-edge]] — the retired Kairic Edge IU4 experiment (2026-08-22)
|
||||
|
||||
@@ -793,3 +793,30 @@ timestamp: 2026-09-14
|
||||
contiguous 2 MiB blocks left (240 before the refresh).
|
||||
- Runbook: [[halogen-flash-server]] gains a "Refreshing the weights" note; the
|
||||
quant comparison is appended to [[x4-pair-experiment]].
|
||||
|
||||
## 2026-09-17 — frank-small swapped to Gemma4-12B QAT (Q4_K_M)
|
||||
|
||||
- **Cutover:** `frank-small` (Dankclaw RTX 3090, :7771) replaced
|
||||
ISTA-DASLab Qwen3.8-27B-GSQ-RCO IQ3_S with
|
||||
`HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced` Q4_K_M —
|
||||
7.38 GiB main + 175 MiB BF16 mmproj (with audio encoder) + 254 MiB
|
||||
`mtp-gemma-4-12B-it.gguf` assistant sidecar, all sha256-verified.
|
||||
- **Spec decode:** the MTP head is now a separate `gemma4-assistant`
|
||||
file loaded via `--model-draft` (shares the target's last layers' KV,
|
||||
`llama-model.cpp:2662`), chained behind draftless `ngram-mod`:
|
||||
`--spec-type draft-mtp,ngram-mod`. Measured acceptance 0.38–0.46,
|
||||
mean draft len ~2.2.
|
||||
- **KV:** q8_0 K and V; `build-cuda` rebuilt with
|
||||
`-DGGML_CUDA_FA_ALL_QUANTS=ON` (required, else ~12x prefill collapse).
|
||||
`CTX_SIZE` unset → `--fit on` chose the full 262,144-token window;
|
||||
idle card usage 11,996 / 24,576 MiB (was 22,362).
|
||||
- **Template behavior:** Gemma4 accepts every `reasoning_effort` level
|
||||
(all seven probed: 200) — the Qwen3.8 gate is gone; harness map kept
|
||||
as a safety net.
|
||||
- **Verified live:** health 200, chat + `reasoning_content`, `tool_calls`,
|
||||
vision (live JPEG), deploy e2e gate passed (31 passed, 1 flaky crawl).
|
||||
- **Harness:** `models.yml` frank-small `contextWindow: 262144`.
|
||||
- **Note:** the boot log's `Gemma4Assistant requires ctx_other to be
|
||||
set` error is `--fit`'s own probe — normal, self-recovers seconds later.
|
||||
- Runbook: [[frank-small-gemma4-12b]] (active);
|
||||
[[frank-small-qwen38-gsq-rco]] retired 2026-09-17 as rollback target.
|
||||
|
||||
Reference in New Issue
Block a user