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Recent improvements of Finite Difference Time Domain simulation techniques

During the last 30 years, the Finite Difference Time Domain (FDTD) Techniques has been developed to the most efficient field simulation technique in electromagnetic field modeling. This progress is on the one side the result of the improved computer technology over the last years, but on the other side also of the development of new algorithms for an intelligent use of the computer systems and for parallel computing techniques as well as for the analysis of more complex circuits and systems (dispersive materials, meta materials etc.). In this short presentation the state of the art of FDTD simulation technique with the latest improvements shall be shortly discussed. An optimum memory access, and a multistep parallel processing of the FDTD algorithm using XPU and XPU NUMA computer hardware is discussed.