ANSYS SIwave includes high-performance computing (HPC) options that allow the solver to use multiple threads, cores and processors to solve large simulations. This parallelization helps to enable full-packages-merged-to-board solutions for signal integrity, power integrity and electromagnetic interference.
HPC options includes a unique feature called the 3-D domain decomposition method (DDM). When invoked, SIwave with 3-D DDM solves 3-D discontinuities with a rigorous 3-D field solver and then combines all domains back together for the full solution. This method retains much of the traditional hybrid method’s speed while providing full accuracy for regions in the model with complex 3-D discontinuities.
In addition, HPC invokes the spectral decomposition method (SDM) for SIwave’s Sentinel-PSI SYZ solver. This capability significantly speeds up Sentinel-PSI by distributing frequency points over compute cores, whether they exist in an IT-managed cluster or single computer.