8.1.2.1 Simulator Initialization

MINIMOS-NT offers a nice feature to reuse simulation results as initial solution to other simulations. This feature can reduce the number of iterations of the device simulator considerably. Especially during the course of optimizations, similar problems are solved again and again. SIESTA enables the usage of initialization files in an elegant way. The evaluation of a model during gradient computation of an optimization is signaled through the auxiliary parameter aux.type of this model. If it contains the string ``gradient'', MINIMOS-NT will use the result of an earlier simulation given at the port initfile of the simulation-flow-model. Otherwise, it will start from scratch and store the result to the file represented by initfile. This strategy reduces the simulation effort during gradient computation significantly.