Function stable_mean

src/backend/oneapi/kernel/mean.hpp:36–45

template<typename To, typename Tw>
void stable_mean(To *lhs, Tw *l_wt, To rhs, Tw r_wt) {
    if (((*l_wt) != (Tw)0) || (r_wt != (Tw)0)) {
        Tw l_scale = (*l_wt);
        (*l_wt) += r_wt;
        l_scale = l_scale / (*l_wt);

        Tw r_scale = r_wt / (*l_wt);
        (*lhs)     = (l_scale * *lhs) + (r_scale * rhs);
    }
}

template<typename Ti, typename Tw, typename To, uint dim, uint DIMY>
class meanDimKernelSMEM {