•     Select the Simulate 2D Using 64-bit Simulator under simulation menu.

•     Click Run to start the simulation. The progress window appears. It displays status of the simulations and the iteration number.

•     User can also observe the intermediate simulation results by clicking the Simulation menu and set the snapshot objects. The time domain response in observation object can be saved to a file. Using OptiFDTD, the viewer can observe it.

•     After each simulation iteration is finished, the results for the current scanned variable will be saved to a single result file with iteration number added in the file name. in this sample it will generate six results file namely :