pub fn resolve_batchm_max(default_max: u32, raw: Option<&str>) -> Resolved<u32>Expand description
2026-09-25: The BF16 decode head’s batched-GEMV band: the widest m that
takes dense_gemv_batchm. Wider batches take a tile GEMM that reassociates
the reduction, so moving the edge changes the head’s output bits.
Clamped to DENSE_GEMV_BATCHM_MAX_M, the kernel’s row bound:
dense_gemv_batchm returns an error above it, which would fail every
decode step. An unparseable or 0 environment value keeps the target’s
declaration; the band has no “off”.