The TD-ADGA iterations are carried out at given times in the dynamics. In a TD-ADGA iteration the convergence of the one-mode grids are initially checked and if one or more onemode grids are not converged, they are extended or subdivided iteratively until convergence is obtained. The TD-ADGA thus contains sub-iterations for each TD-ADGA iteration. After the one-mode grids are converged the two-modes grids are checked for convergence and this continues until all MCs are converged.