Function kquant_mmvq_experts 

pub fn kquant_mmvq_experts(
    gpu: &dyn GpuBackend,
    kernel: KernelHandle,
    vxs: DevicePtr,
    y_q8: DevicePtr,
    out_bf16: DevicePtr,
    n: u32,
    k: u32,
    m: u32,
    n_experts: u32,
    y_stride_bytes: u32,
    stream: u64,
) -> Result<()>

2026-09-25: kquant_mmvq_*_experts: one launch over n_experts experts whose block pointers sit in the device table vxs. The activation for expert e is y_q8 + e * y_stride_bytes (0 = shared), its output out_bf16 + e * m * n. Each expert’s rows go through the same device function as kquant_mmvq.