Guilin Sun
Ansys Employee
Most likely it is due to large autoshutoffmin. Please go to FDTD/Advanced settings, and significantly reduce the value is autoshutoff min to, say 1e-9, in your case.nIn addition, please check the log file: if it terminated at almost 100%, it means the simulation time preset is not long enough. Please increase it 10x or 100x, and let the autoshutoff min to determine when it terminates. If it is due to this cause, the autoshutoff min can be larger, say 1e-6. otherwise it may take too long the simulation time.nnPlease noticed that for large simulation files, it takes longer time to finish. n