One command per volunteer rig: runs the pilot variant once per KV-dtype
arm (fresh symmetric boot each), verify-full + bench n=5 + NIAH ladder
per arm -- soak and quality packs deliberately skipped (quality
consolidates at promotion time per the #246 test plan; ~25-30 min/arm).
Ends with a per-arm comparison table and ONE attachable tarball.
Arms: e5m2 (control) / e4m3 (native FP8 KV, sm_89+) / nvfp4 (Blackwell
opt-in, refused below sm 10.0) / fp8w (vllm/qwen-27b-dual-max STOCK --
FP8-weights checkpoints reject fp8 KV, so this arm measures the
native-FP8-WEIGHTS lift instead; dual-rig only).
Guard rails: variant auto-pick by GPU count (2+ -> vllm/dual, 1 ->
vllm/minimal); KV arms are explicit KV_CACHE_DTYPE pins (unambiguous on
any launcher version); the running container's --kv-cache-dtype is
asserted live before any bench time is spent; --dry-run / --resume /
--full escape hatch.
test-arch-ab: hermetic plan/refusal contract via CLUB3090_FAKE_GPUS.
Full scripts gate 65/65.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EfF565T9eSLaqGzidyJ1Pm
