pub fn w4a16_gemm_n128_m128_v3(
gpu: &dyn GpuBackend,
kernel: KernelHandle,
input: DevicePtr,
weight: &QuantizedWeight,
output: DevicePtr,
m: u32,
n: u32,
k: u32,
stream: u64,
) -> Result<()>Expand description
W4A16 GEMM v3: MiniMax-only shadow with K_STEP=64 (was 32 in v2). Halves K-iteration count; doubles per-iter MMA count. 1 CTA/SM (was 3 for v2) due to larger SMEM footprint.