     DType std_eps = sqrt(sigma2 + static_cast<DType>(eps));
     DType invstd_eps = static_cast<DType>(1) / std_eps;
     DType* out_col_val = out_data + bid * nchannel;
-    /*
+
     if (gamma != NULL && beta != NULL) {
       for (int i = tid; i < nchannel; i += nthread) {
         out_col_val[i] = gamma[i] * invstd_eps * (col_vals[i] - mean) + beta[i];

  int nbatch = data_shape[0];
  int nchannel = data_shape[1];
  float eps = param.eps;
  int ngrid_x = (nbatch > kMaxGridDim) ? (nbatch + kBaseGridNum - 1) / kBaseGridNum : nbatch;
  int ngrid_y = (nbatch > kMaxGridDim) ? kBaseGridNum : 1;
  int nthread_y = 0;
  const dim3 dimGrid(ngrid_x, ngrid_y, 1);
  if(nchannel <= 32) {

      for (int i = tid; i < nchannel; i += nthread) {
        out_col_val[i] = invstd_eps * (col_vals[i] - mean);
      }
    }
    // Write the out_data and var_data
    if(threadIdx.x == 0 && threadIdx.y == 0) {
