The decode stall is step contention (measured: 18.7 ms decode-only steps
against 317 ms steps that carry a prefill chunk, decode at 13 t/s median
while prefill runs), and the two engine knobs that fix it arrived after this
endpoint's pin. Moving to 1.8.1 (2026-10-18) brings both, and brings two CLI
breaks with them:
- --vram-weights-mib / --vram-kv-mib were REMOVED at 1.3.0. The per-card
split between the expert slab and the KV pool is now derived by the
engine's budget resolver from --gpu-headroom-mib, the cache bound
(--max-model-len, --max-num-seqs) and --host-pool-mib, and the cache may
lend idle blocks to the expert slab. The slab size and the pool's token
count are boot-ledger lines from here on, so the capacity contract
(3 x 200,000 fp8) is verified live by the probe's capacity leg instead of
computed from an env number.
- The prefix cache has no disk tier any more: --prefix-cache-dir and
--prefix-cache-disk-mib are refusals and --prefix-cache-host-mib is
--prefix-cache-mib. 64 GiB of parked KV on NVMe becomes re-prefill, so
prefix_hit_rate is the thing to watch after this boot.
env: image re-pinned to the 1.8.1 digest; the pair and the disk tier dropped;
FRANK_ARCHON_PREFIX_CACHE_MIB replaces the host/disk pair; new
FRANK_ARCHON_BUSY_PREFILL_CHUNK=auto (explicit, because auto vs off is the
difference between decode waiting one chunk and waiting a whole step) and
FRANK_ARCHON_PREFILL_INTERLEAVE=0 (opt-in through a guarded argv array).
serve: argv follows the new CLI, /data mount and the pre-created kvcache path
go with the disk tier, and the retired env keys are no longer required (they
would abort ExecStart). autoresearch-frank-archon.sh takes the same CLI, with
a cold prefill now coming from --prefix-cache-mib 0 instead of a per-run disk
directory. run-swift15-bf16.sh is untouched: it pins its own engines by design.
tests: the two budget-arithmetic seams asserted knobs that no longer exist and
are replaced by one seam that asserts the retired knobs are ABSENT from env and
argv - a stale line is a boot refusal, not a no-op. The container-contract seam
now asserts the tune mount and the absence of /data.
123 lines
7.7 KiB
Bash
123 lines
7.7 KiB
Bash
# frank-archon.env — radiance (StillDeadcode) on BOTH R9700s (TP=2),
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# Dankserver :7770, publisher's 4-bit-codebook container of the official
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# Qwen3.8-Flash-Next.
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#
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# ONE OWNER: shape, payload identity, eras, laws and every measured number live
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# in serverAppConfigs-docs/LLM/frank-archon.md. This file carries the knobs plus
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# only the reason a reader editing THIS line cannot recover from the page.
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# Where the two disagree, this file wins on values; the boot ledger arbitrates
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# the engine shape.
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FRANK_ARCHON_IMAGE=stilldeadcode/radiance@sha256:d590e300234bf6d2f942a0b8d456d183153fd808f28820e6c2fa69c9389178ed
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# 1.8.1 (2026-10-18), pinned by digest. Two CLI breaks sit between it and the
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# 1.0.13 line this endpoint ran for two eras, and both are boot refusals, not
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# warnings: --vram-weights-mib/--vram-kv-mib were REMOVED at 1.3.0 (the card is
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# now split by the engine's budget resolver — see below), and the prefix cache
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# lost its disk tier. Draft acceptance has to be re-scored on any pin past 1.2.0:
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# 1.2.0's MoE weight rotation measured 0.7123 against the 0.7549 control, and the
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# suspect is untangled (the page's Dead ends section names it).
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# The .rad file mounts under /models; the tune cache mounts separately below.
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# The model dir holds ONLY .rad files — the HF download and staging stay beside it.
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FRANK_ARCHON_MODEL_DIR=/home/dank/models/rad
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FRANK_ARCHON_MODEL_FILE=qwen3.8-next-flash-fp8-iq4r-moe.rad
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FRANK_ARCHON_STATE_DIR=/home/dank/radiance-state
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# state dir's tune/ subdir carries rad-tune's kernel-selection cache; the engine
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# reads $RADIANCE_HOME/tune/<machine>.tune and that defaults to /opt/radiance
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# (inside the image), so the cache only survives on a host mount.
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# Container identity is the SERVICE name: one name across systemctl and
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# `podman ps`; the runtime changes, the name does not. The legacy list retires
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# every predecessor identity that could hold the GPUs or the port.
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FRANK_ARCHON_CONTAINER=frank-archon
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FRANK_ARCHON_LEGACY_CONTAINERS="frank-archon-qwen frank-archon-r9v qwen-fp8 glm-probe"
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# Served id. Radiance VALIDATES the requested model name, so every client must
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# send exactly this value (unlike llama.cpp and halogen, which ignore it).
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FRANK_ARCHON_SERVED_NAME=frank-archon
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FRANK_ARCHON_PORT=7770
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# Frank's chat-template call: froggeric's fixed Qwen3.8 template, vendored in
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# the repo; it overrides the template baked into the .rad, and radiance derives
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# the reasoning and tool-call reply format from it.
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FRANK_ARCHON_TEMPLATE=/home/dank/serverAppConfigs/scripts/qwen38-froggeric-v22.5.jinja
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# --- engine shape (the boot ledger arbitrates every number below) ---------
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# TP=2 needs the 2026-09-20 board (x8/x8 on root ports): a collective cannot be
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# dispatched on a card whose PCIe chain lacks atomics. Radiance's wire is
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# libr4d's own, not RCCL.
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FRANK_ARCHON_TP=2
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# Lossy WHT 6-bit wire for large all-reduces (publisher's production choice). It
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# stays EXACT for single-sequence decode and any step of <= 25 rows — see
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# MAX_SEQS x (1 + SPEC_TOKENS) below.
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FRANK_ARCHON_TP_WIRE=wht6
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# Decode slots. A slot costs KV, never decode; the pool is sized to this
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# contract and nothing more, so a FOURTH full-height conversation is REFUSED as
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# too large to fit — never squeezed, paged or truncated. That is Frank's
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# explicit trade: the freed MiB went to the expert slab.
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FRANK_ARCHON_MAX_SEQS=3
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# Served window. The engine treats `kv group tokens >= max-model-len` as a HARD
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# limit, and models.yml contextWindow MUST quote this number (over-length is a
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# refusal, not a truncation). The pool is sized for seqs x maxlen, not one
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# sequence.
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FRANK_ARCHON_MAX_MODEL_LEN=200000
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FRANK_ARCHON_PLACEMENT=expert_tiered
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# Pinned host pool for expert rows that do not fit VRAM. Under the budget
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# resolver this is ALSO the lever that decides which experts stay on the card:
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# the card's leftover goes to the expert plane first and the KV cache takes the
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# rest, so growing the pool moves experts off the card and shrinking it spills
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# them onto VRAM the cache wanted. Under-sizing it is a boot failure (36,864
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# refused a boot). The ledger's coverage line is the referee, not this file.
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FRANK_ARCHON_HOST_POOL_MIB=44928
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# VRAM left unclaimed per card (publisher default 96 MiB); the engine's settle
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# floor is built from it.
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FRANK_ARCHON_GPU_HEADROOM_MIB=96
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# There is no VRAM pair any more. --vram-weights-mib/--vram-kv-mib were removed
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# at 1.3.0: the engine takes capacity - already-held - GPU_HEADROOM - arena,
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# puts the static (non-expert) weights off the top, then divides the rest between
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# the expert plane and the KV cache — experts first when the cache has no idle
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# blocks to lend, and never less than ONE MAX_MODEL_LEN sequence for the cache.
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# What moves the split from here is HOST_POOL_MIB (which experts stay resident),
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# MAX_MODEL_LEN/MAX_SEQS (the cache bound) and GPU_HEADROOM_MIB. The slab size
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# the prefill-slope law cares about is a boot-ledger line now, not a knob: read
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# it after every resize instead of asserting it here.
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# fp8 is the ONLY rung below bf16 on this engine: one kv_dtype for the whole
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# cache, so llama.cpp's exact-K/quantized-V split (frank-zealot) is unservable
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# here. bf16 costs 1.89x fp8, not 2x — the QSA block-key plane is dtype-fixed.
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FRANK_ARCHON_KV_DTYPE=fp8
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# The checkpoint's own MTP head at depth 2: this fleet's ladder was measured at
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# 2, and 3 x (1+2) = 9 rows stays inside the wht6 25-row exactness bound.
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FRANK_ARCHON_SPEC_TOKENS=2
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FRANK_ARCHON_MAX_BATCHED_TOKENS=2048
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# Step sharing. A prefill chunk that shares a step with decoding sequences holds
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# the device for the chunk's whole time, and every decode row in that step waits
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# that long for its next token (the census: [[LLM Performance Diagnosis]] §9).
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# `auto` leaves each decode row behind the chunk a row plus its draft window and
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# keeps a share for whatever is waiting to be admitted; a number pins the chunk's
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# cap; `off` is the pre-1.4 behaviour this endpoint ran for two eras, where the
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# chunk took the step and admission never ran. Interleave inserts N decode-only
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# steps after a chunk step taken beside decoders: it protects their cadence and
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# holds a waiting request out of those steps, so it stays 0 until the post-migration
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# decode-vs-prefill buckets say it is wanted.
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FRANK_ARCHON_BUSY_PREFILL_CHUNK=auto
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FRANK_ARCHON_PREFILL_INTERLEAVE=0
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# Prefix cache: pinned host memory only. The disk tier was removed outright
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# (--prefix-cache-dir and --prefix-cache-disk-mib are refusals), so what used to
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# be restored from NVMe is now re-prefilled. The tier is sized in ENTRIES and one
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# entry tracks the cache dtype (58.50 KiB at fp8). Watch prefix_hit_rate after
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# this change: a drop is extra prefill, and prefill is exactly the traffic that
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# costs decode its cadence.
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FRANK_ARCHON_PREFIX_CACHE_MIB=8192
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# Frank's pin law: the PLE n-gram table serves from pinned host RAM the cards
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# read. `ram` REFUSES the start if memlock is too small — the unit's
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# LimitMEMLOCK=infinity is the other half of this law.
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FRANK_ARCHON_NGRAM_PLACEMENT=ram
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# TTM preflight. The pinned ledger (~147 GiB) rides TTM's shared pages, and the
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# kernel RESETS pages_limit to half of RAM on every boot; below the plan the
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# load dies mid-pin with an anonymous allocator error. ttm-preflight.sh raises
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# the knob itself before refusing by name, so recovery is a boot, not a visit.
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FRANK_ARCHON_TTM_MIN_MIB=150000
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FRANK_ARCHON_TTM_TARGET_MIB=204800
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# Escape hatch for experiments. Unset -> no extra argv; the serve script expands
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# this unquoted on purpose, so keep multi-flag values as one string.
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FRANK_ARCHON_EXTRA_ARGS=
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# Deployer gate: a truncated fetch must be a fast refusal, not a long-timeout
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# boot. Floor sits under the live payload and under every rollback payload
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# (see the page's Eras table for what is on disk and what needs a re-download).
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FRANK_ARCHON_RAD_MIN_MIB=110000
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