Frank
dc76dc5dc4
Context: 262144 was measured before it was deployed -- 24.72 GB on GPU 0 and 29.14 GB on GPU 1 of 34.21 GB each, ~5 GB of headroom on the busier card, and a 140,069-token prompt prefilled through the single slot in 134 s to prove the window is real. The 114688 wall was the vLLM predecessor's arithmetic, not this runtime's. Throughput, measured through the service: 1.0-1.4k tok/s prefill from 4k to 140k, 43.8 tok/s decode on a 512-token generation, 41-71 % DFlash2 acceptance, and the prefix cache re-prefilling 4 of 998 tokens on a repeated prompt. The signals move with the runtime, so the fleet's rules and dashboard are re-cut rather than renamed: vllm: series do not exist any more, and two of the old rules watched things llama.cpp does not export at all (KV-pool fill, p95 latency). Those are retired with the reason written down, and LlmSpecDecodeOff takes one of the slots -- a lost drafter is the failure no client can see. The observability seam now fails if any rule names a series the endpoint does not export, which is what would have caught the stale vllm: expressions. omp models.yml (outside the repo) is updated in the same pass: contextWindow 262144, and the full reasoning-effort map, because Qwen3.8's template answers 500 on 'high' -- verified against the live endpoint, low/medium/xhigh answer 200. Subagents run at high.
171 lines
7.9 KiB
Bash
Executable File
171 lines
7.9 KiB
Bash
Executable File
#!/usr/bin/env bats
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# Seam: the frank-medium mainline-llama.cpp root unit on dankserver.
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# frank-medium became a native llama.cpp service on 2026-09-16, replacing the
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# vllm-radiance replica pair + routing proxy that served this endpoint for a
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# day. What this seam pins is what the flags alone do not say: boot persistence
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# for a NATIVE runtime (no generated quadlet is involved), that BOTH cards work
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# on ONE model through a layer split with no collective in the path, that the
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# DFlash2 drafter is wired with a depth its block size actually allows, that the
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# runtime and payload are pinned rather than floated, and that one slot's KV
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# still fits a 32 GiB card beside the weights it holds.
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load helpers
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UNIT="$REPO_ROOT/scripts/frank-medium.service"
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SERVE="$REPO_ROOT/scripts/serve-frank-medium.sh"
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ENV_FILE="$REPO_ROOT/scripts/frank-medium.env"
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BUILD="$REPO_ROOT/scripts/build-llama-rdna4.sh"
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FETCH="$REPO_ROOT/scripts/download-frank-medium-gguf.sh"
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REMOTE_DEPLOY="$REPO_ROOT/scripts/deploy-remote.sh"
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# Measured constants (rocm-smi / HF blob sizes), used by the fit arithmetic.
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CARD_BYTES=34208743424 # one R9700 as rocm-smi reports it
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MODEL_BYTES=31457990112 # UD-Q8_K_XL target
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DRAFT_BYTES=2056414816 # DFlash2 Q8_0 drafter
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@test "frank-medium's unit, serve script, env and its build/fetch scripts exist" {
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[ -f "$UNIT" ]
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[ -f "$SERVE" ]
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[ -f "$ENV_FILE" ]
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[ -f "$BUILD" ]
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[ -f "$FETCH" ]
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}
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@test "frank-medium is boot-persistent, self-healing and unprivileged" {
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grep -q '^WantedBy=multi-user.target$' "$UNIT"
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grep -q '^Restart=on-failure$' "$UNIT"
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grep -q '^RestartSec=' "$UNIT"
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grep -q '^User=dank$' "$UNIT"
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grep -q '^LimitMEMLOCK=infinity$' "$UNIT"
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}
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@test "frank-medium runs the repo's own serve script with the repo's env" {
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grep -q '^ExecStart=/home/dank/serverAppConfigs/scripts/serve-frank-medium.sh$' "$UNIT"
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grep -q 'FRANK_MEDIUM_ENV_FILE=/home/dank/serverAppConfigs/scripts/frank-medium.env' "$UNIT"
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}
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@test "both R9700s serve ONE model, layer-split inside one process" {
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grep -q '^SPLIT_MODE=layer$' "$ENV_FILE"
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grep -q '^DEVICES=ROCm0,ROCm1$' "$ENV_FILE"
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grep -q '^TENSOR_SPLIT=1,1$' "$ENV_FILE"
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grep -q -- '--split-mode "$SPLIT_MODE"' "$SERVE"
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grep -q -- '--device "$DEVICES"' "$SERVE"
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grep -q -- '--tensor-split "$TENSOR_SPLIT"' "$SERVE"
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# Tensor split is the one shape this host cannot run: it needs a cross-card
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# collective, and the second card cannot dispatch one (see the env file).
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! grep -q '^SPLIT_MODE=tensor$' "$ENV_FILE"
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}
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@test "the iGPU is hidden so no layer can land on system RAM" {
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grep -q '^HIP_VISIBLE_DEVICES=0,1$' "$ENV_FILE"
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grep -q '^export HIP_VISIBLE_DEVICES$' "$SERVE"
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}
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@test "the DFlash2 drafter is a draft model at a depth its block allows" {
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grep -q '^SPEC_TYPE=draft-dflash$' "$ENV_FILE"
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grep -q '^DRAFT_MODEL_FILE=Qwen3\.8-27B-DFlash2-Q8_0\.gguf$' "$ENV_FILE"
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grep -q -- '--spec-type "$SPEC_TYPE"' "$SERVE"
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grep -q -- '--spec-draft-model "$DRAFT_MODEL"' "$SERVE"
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# DFlash2 drafts into a block of 8, so at most 7 draft tokens per
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# verification step -- llama.cpp asserts n_max <= block_size - 1.
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local n_max
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n_max="$(sed -nE 's/^SPEC_DRAFT_N_MAX=([0-9]+)$/\1/p' "$ENV_FILE")"
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[ -n "$n_max" ] && [ "$n_max" -ge 1 ] && [ "$n_max" -le 7 ]
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}
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@test "the runtime is pinned to a commit and to gfx1201 alone" {
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# A floating ref would silently move the service between engine versions,
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# and an unpinned arch would build for a sibling GPU that loads and then
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# segfaults on these cards.
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grep -Eq '^LLAMA_REF="\$\{LLAMA_REF:-[0-9a-f]{40}\}"$' "$BUILD"
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grep -Eq '^HIP_ARCH="\$\{HIP_ARCH:-gfx1201\}"$' "$BUILD"
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grep -q 'GGML_HIP=ON' "$BUILD"
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grep -q 'frank-medium.env' "$SERVE"
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}
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@test "the payload is fetched resumably and verified by size" {
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grep -q 'UD-Q8_K_XL\.gguf' "$FETCH"
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grep -q 'Qwen3\.8-27B-DFlash2-Q8_0\.gguf' "$FETCH"
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grep -q 'curl -fL -C -' "$FETCH"
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grep -q 'verifying sizes' "$FETCH"
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}
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@test "one slot's KV still fits a card beside the weights that card holds" {
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local ctx parallel cache_k cache_v
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ctx="$(sed -nE 's/^CTX_SIZE=([0-9]+)$/\1/p' "$ENV_FILE")"
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parallel="$(sed -nE 's/^PARALLEL=([0-9]+)$/\1/p' "$ENV_FILE")"
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cache_k="$(sed -nE 's/^CACHE_TYPE_K=(.+)$/\1/p' "$ENV_FILE")"
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cache_v="$(sed -nE 's/^CACHE_TYPE_V=(.+)$/\1/p' "$ENV_FILE")"
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[ -n "$ctx" ] && [ -n "$parallel" ] && [ -n "$cache_k" ] && [ -n "$cache_v" ]
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[ "$parallel" -ge 1 ]
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[ "$cache_k" = "f16" ] && [ "$cache_v" = "f16" ]
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# qwen35 spends KV on its 16 full-attention layers only: 2 (K,V) x 4 heads
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# x 256 dim x 2 B = 64 KiB per token at f16. A layer split puts those
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# layers (and their KV) on both cards, so the worst card carries half the
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# weights, half the KV, the drafter and ~2 GiB of compute buffers.
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#
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# This model is deliberately calibrated against rocm-smi: at 262144 it
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# predicts 28.53e9 B against the 29.14e9 B measured on the busier card
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# (2026-09-16), i.e. ~2 % optimistic. Keep it that way -- a model that is
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# pessimistic beyond a few GiB would reject a context that fits.
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local per_card
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per_card=$(( MODEL_BYTES / 2 + DRAFT_BYTES + (ctx * 65536) / 2 + 2 * 1024 * 1024 * 1024 ))
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[ "$per_card" -le "$CARD_BYTES" ]
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# ...and the window may not exceed what the checkpoint was trained for.
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[ "$ctx" -le 262144 ]
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}
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@test "frank-medium is text only: the vision tower stays on frank-small" {
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grep -q '^NO_MMPROJ=1$' "$ENV_FILE"
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grep -q -- '--no-mmproj' "$SERVE"
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}
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@test "the fleet endpoint and the predecessor's sampler defaults survive" {
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grep -q '^ALIAS=frank-medium$' "$ENV_FILE"
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grep -q '^LISTEN_PORT=7770$' "$ENV_FILE"
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grep -q -- '--alias "$ALIAS"' "$SERVE"
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grep -q -- '--port "$LISTEN_PORT"' "$SERVE"
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grep -q -- '--host "$BIND_ADDR"' "$SERVE"
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# Prometheus scrapes this endpoint for LLM fleet metrics.
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grep -q -- '--metrics' "$SERVE"
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# Requests that send no sampler fields get these instead of an error.
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grep -q '^TEMPERATURE=0.7$' "$ENV_FILE"
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grep -q '^TOP_P=0.95$' "$ENV_FILE"
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}
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@test "the deploy handler installs the root unit and refuses a missing payload" {
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grep -q 'deploy_llm_medium' "$REMOTE_DEPLOY"
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grep -q 'relink_unit frank-medium' "$REMOTE_DEPLOY"
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grep -q 'systemctl enable frank-medium.service' "$REMOTE_DEPLOY"
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grep -q 'systemctl restart frank-medium.service' "$REMOTE_DEPLOY"
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grep -q '127.0.0.1:7770/health' "$REMOTE_DEPLOY"
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grep -q 'build-llama-rdna4.sh' "$REMOTE_DEPLOY"
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grep -q 'download-frank-medium-gguf.sh' "$REMOTE_DEPLOY"
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grep -q '\[\[ "$missing" -eq 0 \]\] || return 1' "$REMOTE_DEPLOY"
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}
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@test "the deploy handler retires the vLLM quadlets and frees the port they held" {
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grep -q 'retire_vllm_medium_quadlets' "$REMOTE_DEPLOY"
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grep -q 'systemctl --user stop frank-medium-a.service frank-medium-b.service' "$REMOTE_DEPLOY"
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grep -q 'wait_port_free 7770' "$REMOTE_DEPLOY"
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# No image left to tag: the runtime is a native binary now.
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# ...and no image work or quadlet install of the predecessor survives.
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! grep -q 'install_quadlet frank-medium-a' "$REMOTE_DEPLOY"
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! grep -q 'podman tag docker.io/stilldeadcode' "$REMOTE_DEPLOY"
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}
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@test "the retired vLLM deployment is gone from the repo, not merely unmapped" {
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[ ! -d "$REPO_ROOT/dankserver/frank-medium" ]
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[ ! -f "$REPO_ROOT/tests/frank_medium_quadlet.bats" ]
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# ...and the archive is present, so the two assertions above cannot pass
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# because a path went missing rather than because it stayed missing.
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[ -f "$REPO_ROOT/dankserver/.AGENTTRASH/20260916-vllm-radiance/frank-medium-a.container" ]
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[ -f "$REPO_ROOT/dankserver/.AGENTTRASH/20260916-vllm-radiance/radiance-entrypoint.sh" ]
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}
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@test "the serve script refuses to start on an incomplete host" {
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grep -q 'frank-medium: missing\|missing executable runtime\|missing or unreadable' "$SERVE"
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grep -q 'missing or unreadable target model' "$SERVE"
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grep -q 'missing or unreadable draft model' "$SERVE"
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}
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