Frank's order, 2026-10-19: --parallel 3 at 200,704 a conversation (pool
602,112), K at the engine default (f16), V to q8_0, batch 1024x6 / ubatch
1024, and the MTP drafter armed explicitly.
The three requests are one budget equation. At 8,192 elements per token per
cache the pair now bills 25,088 B/token = 14,406.00 MiB over the 602,112
pool, and the armed draft context adds its own f16 KV over that whole pool
(4,096 B/position = 2,352.00 MiB) plus buffers and recurrent cells. Dropping
V to the 8-bit class frees 4,410 MiB against exact V and the ubatch drop
hands back ~1,306 - that is what pays for the third slot AND the drafter,
neither of which exact V could fund.
The serve script's written-down fallbacks move with the env so a missing env
file cannot boot the retired shape, and the seam now: asserts the per-slot
contract (divides evenly, <= the trained 262,144), bills an armed drafter in
the VRAM fit gate, proves the gate still REFUSES both boots this shape can
walk into, pins the shipped MTP set (and the absence of --spec-draft-model,
which would load the trunk twice), and pins SPEC_TYPE=none as the rollback
that strips the whole set.
Frank
25a8b00043