Parallel Computing of Electromagnetic Field Based on Domain Decomposition Method

The computing velocity and memory storage of Single PC are often limited in large-scale electromagnetic simulation by finite element method (FEM), parallel processing is an important means to overcome such problems. The domain decomposition method (DDM) which decomposes the domain by nodes dominating and suits for parallel computing was illustrated first in this paper; A 2D electrostatic model was built and decomposed by the DDM; And the FEM linear system of equations was solved by using parallel CG method on the distributed parallel system composed of 6 PCs, the effective speed up reaching 97.5% was satisfying. Especially for large-scale simulation which consists of more than millions of freedoms, the parallel processing reduces computing time and increases the computing velocity greatly, it's the base on which large-scale 3D electromagnetic parallel computing.