Frank
301914b1c0
frank-large moves from the kingjones30/ROCmFPX llama.cpp build to peonist-ai/halogen-flash-server 0.5.8 serving Qwen3.8-Flash-Next (w4b .hgn 115.55 GiB + quality overlay). Upstream measures this engine at roughly 4x the prefill throughput of the llama.cpp family on the same gfx1151 silicon, and prefill dominates any prompt with real context. Shape: a rootless Quadlet container (dankclaw/frank-large/quadlet/), engine on container loopback :8730 (never published), OpenAI front-end :8731 published as host 7770, HALOGEN_MODEL_ID=frank-large so no client renamed anything. Context 262144, KV pool 262144 positions (~7.2 GiB, conservative for a shared 121 GiB host), 4 slots, host reserve 24, vision tower on, weights pinned, all other flags at vendor defaults. Weights are fetched by HALOGEN_DOWNLOAD on first start into a writable /home/dank/models/halogen. The llama.cpp era (unit, env, serve script) is staged in .AGENTTRASH/ rather than deleted; the STRIX payload and the ROCmFPX build stay on disk as the rollback target. deploy_llm_large becomes a user-quadlet handler: it retires the old ROOT unit (moving its checkout symlink into the home trash, never rm) and gates the first start on the download rather than reporting a failure for a fetch that is working exactly as designed. frank-npu is retired in the same change. The kernel cmdline moves from iommu=pt to amd_iommu=off for the 13-16% of prefill upstream measured, and that takes the XDNA2 NPU with it: without PASID/SVA the driver cannot open /dev/accel/accel0 (err=-19). Its five dependent routes are repointed (Hermes vision -> frank-large, Hermes title generation -> frank-small, harness vision -> frank-large, tiny -> frank-small, task -> frank-large:medium) and its provider blocks are removed from both the harness config and Hermes's live config. Audio input leaves the fleet with no replacement; image input survives on halogen's vision tower. Docs: new halogen-flash-server runbook, new IOMMU decision record, and frank-npu rewritten as a retirement record. AGENTS.md topology, runtime sections, benchmarking policy (frank-large is a user unit now) and the harness model-config section are corrected.
122 lines
6.3 KiB
INI
122 lines
6.3 KiB
INI
# Quadlet unit: frank-large (rootless, boot-persistent).
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#
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# Install path on dankclaw: ~/.config/containers/systemd/frank-large.container
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# Unit name: frank-large.service (container name: frank-large)
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#
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# The large inference service, since 2026-09-11 the halogen-flash-server
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# runtime serving peonist-ai/halogen-qwen3.8-flash-next (Qwen3.8-Flash-Next,
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# w4b .hgn checkpoint + quality overlay sidecar). It replaced the llama.cpp /
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# kingjones30-ROCmFPX STRIX deployment because the engine is ~4x faster on
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# prefill (the dominant cost of any real prompt) on this exact SKU.
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#
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# SHAPE. The image runs both halves in one container: the engine on container
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# loopback (:8730, UNAUTHENTICATED — never publish it) and the OpenAI
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# front-end on :8731, published here as host 7770 so the fleet's clients,
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# services.json probe and docs keep the port they have always used. Same for
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# HALOGEN_MODEL_ID=frank-large: it is the id at /v1/models, in /health and in
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# every response, so no client had to be renamed. Halogen never rejects a
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# request for naming a different model, it just serves it.
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#
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# DEVICES. gfx1151 through the amdgpu/KFD stack: /dev/kfd plus the DRM render
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# node. Both are 0666 on this host, so the rootless user namespace can open
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# them (id dank is also in render/video). seccomp=unconfined and --ipc=host are
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# the image's documented requirements; memlock must be unlimited.
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#
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# DO NOT name an environment variable TEMP, HOST or GPU_MAX_HEAP_SIZE: the HIP
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# runtime reads bare TEMP for its JIT cache path (2026-08-13 incident).
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#
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# MEMORY. Weights are pinned (HALOGEN_FLASH_PIN_TRUNK default 1) — that is the
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# configuration the published decode numbers were measured with, and `free`,
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# MemAvailable and every monitor built on them will overstate free memory by
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# the size of the model (~68 GiB) because the kernel counts the locked weights
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# as reclaimable page cache. Halogen prints the corrected figure at startup.
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# The pinned trunk means this container holds most of the host; a co-tenant
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# that then takes the remainder can stall both for minutes at full CPU with no
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# disk activity and no output. That is documented behaviour, not a crash, and
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# the escape hatch is HALOGEN_FLASH_PIN_TRUNK=0 (at several times the decode
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# cost). Sizing chosen 2026-09-11 for a SHARED 121 GiB host: KV pool 262,144
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# positions (~7.2 GiB) + the baked 32,768-token prefill arena (16.7 GiB) sits
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# well inside the device budget once the ~68 GiB of weights and the ~5 GiB of
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# co-tenant containers are accounted for. HALOGEN_KV_POOL_FIT stays on as the
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# safety net: if the machine refuses, the engine lowers the pool itself and
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# prints what it chose.
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#
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# WEIGHTS. HALOGEN_DOWNLOAD fetches the whole weights repo on FIRST START ONLY
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# (the entrypoint checks whether the checkpoint is absent) into the bind mount
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# below, which must therefore be read-WRITE. huggingface_hub resumes partial
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# files natively, and the quadlet runs the container with --replace --rm, so a
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# restart mid-fetch continues rather than starting over. Roughly 127 GB: the
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# 115.55 GiB checkpoint, the 2.31 GiB quality overlay, the 0.84 GiB vision
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# tower and the tokenizer. The repo is public and ungated, so no token is
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# needed; later starts open no outbound connections at all.
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#
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# VISION. HALOGEN_VISION_TOWER=1 finds the sidecar beside the checkpoint. This
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# is the fleet's only image input since the FLM NPU endpoint was retired on
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# 2026-09-11; audio input has no replacement.
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#
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# CLIENT CONTRACT (see serverAppConfigs-docs/LLM/halogen-flash-server.md).
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# There are no server-side sampler defaults: a request that sends no
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# temperature decodes GREEDY. The per-request budget defaults to 8,192 tokens
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# and REASONING COUNTS AGAINST IT, so a budget that runs out mid-thought
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# returns finish_reason "length" with empty content and the partial reasoning
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# in reasoning_content. The cap is 65,536; above it a request is a 400, never a
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# silent truncation.
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#
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# IMAGE. The unit runs the localhost/-aliased tag: this host's podman quadlet
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# path cannot resolve registry-prefixed refs from local storage at create
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# time. deploy-remote.sh pulls the ghcr.io ref and re-tags it before the
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# restart. Pull=never keeps boots off the registry.
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[Unit]
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Description=frank-large — halogen-flash-server, Qwen3.8-Flash-Next (w4b) on gfx1151
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After=network-online.target
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[Container]
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ContainerName=frank-large
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Image=localhost/peonist-ai/halogen-flash-server:0.5.8
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# Published port stays 7770: Hermes, open-webui, the harness and the homepage
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# probe all point here. 8730 (the engine) is deliberately not published.
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PublishPort=7770:8731
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AddDevice=/dev/kfd
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AddDevice=/dev/dri
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# Read-write: the first start downloads into it. Contains only weights.
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Volume=/home/dank/models/halogen:/models
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# Fetch the weights on first start only (absent checkpoint gates it).
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Environment=HALOGEN_DOWNLOAD=peonist-ai/halogen-qwen3.8-flash-next
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# Fleet identity: the id at /v1/models, /health and every response body.
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Environment=HALOGEN_MODEL_ID=frank-large
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# Native context of the model. Matches what both clients declare.
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Environment=HALOGEN_CTX=262144
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# Conservative pool for a shared host: one full-length conversation, or four
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# at 65k. Raising it to 524288 doubles the resident conversations for ~7 GiB
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# more device memory — do that only after reading the startup ledger.
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Environment=HALOGEN_KV_POOL_POSITIONS=262144
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Environment=HALOGEN_KV_SLOTS=4
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# RAM left for the n-gram table the engine reads through the page cache.
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# Above the vendor's 20 because a dozen containers share this host; too low
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# and long prompts crawl with the disk busy.
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Environment=HALOGEN_HOST_RESERVE_GIB=24
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# Image input (the sidecar ships inside the weights repo).
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Environment=HALOGEN_VISION_TOWER=1
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# Required by the image: the engine maps the checkpoint and registers it with
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# the GPU in place, which needs host IPC and an unconfined seccomp profile.
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PodmanArgs=--ipc=host --security-opt seccomp=unconfined
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Ulimit=memlock=-1:-1
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# The image ships its own HEALTHCHECK; this pins it. /health asks the ENGINE
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# for a PONG before answering, so 200 means "ready to serve", not "process
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# alive". During the first-start download it stays unhealthy by design.
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HealthCmd=halogen-healthcheck api
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HealthInterval=30s
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HealthTimeout=10s
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HealthRetries=3
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HealthStartPeriod=300s
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Pull=never
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[Service]
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# The first start reads ~68 GiB off disk and pins it before serving.
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TimeoutStartSec=900
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Restart=on-failure
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RestartSec=10
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[Install]
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WantedBy=default.target
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