resolve confilct

Author: zgn-26714

source/source_lcao/module_gint/temp_gint/gint_common.cpp

@@ -250,7 +250,11 @@ void transfer_dm_2d_to_gint(
                 int iat2 = ap.get_atom_j();
                 for (int ir = 0; ir < ap.get_R_size(); ++ir) {
                     const ModuleBase::Vector3<int> r_index = ap.get_R_index(ir);
+#ifdef __MPI
                     T* matrix_out = dm2d_tmp.find_matrix(iat1, iat2, r_index)->get_pointer();
+#else
+                    T* matrix_out = dm2d_tmp->find_matrix(iat1, iat2, r_index)->get_pointer();
+#endif
                     T* matrix_in = ap.get_pointer(ir);
                     for (int irow = 0; irow < ap.get_row_size()/2; irow ++) {
                         for (int icol = 0; icol < ap.get_col_size()/2; icol ++) {