A framework for fast SI/PI simulation with acceleration techniques

For the signal/power integrity (SI/PI) and EMI design, the simulation of large-scale network, for example, printed circuit board (PCB) and package system with PDN (power distribution network), is strongly demanded. In this paper, a framework for a fast SI/PI simulation with several characteristic techniques is described. First, the concept of locally implicit block leapfrog scheme (based on the block-LIM) for the efficient PDN simulation, which can be more efficient than the original leapfrog method even for the network with tightly coupled subnetworks, is introduced briefly. Furthermore, the derivative of the block-LIM is also described in the cases 1) with conformal meshes and 2) of implementation on the multi-GPUs 3) with multi-rate technique.