pub const Q2_BATCHM_MAX_M: u32 = 8;Expand description
2026-09-25: Row cap of the q2_0_gemv_vec_batchm kernel (MAX_M in the .cu). The kernel
stages M activation rows into s_A[MAX_M * TILE_K], so M > MAX_M writes past that
tile, and its compute and store loops stop at MAX_M, so rows from 8 on are never
written. q2_0_gemv_vec_batchm chunks larger m itself.