Abstract
To study and research the best algorithm for large-scaled parallel finite element method (FEM), we select two types of domain decomposition method (DDM) which are solving reduced boundary freedom by iterative method (method-A) and solving whole freedom by iterative solver (method-B). These methods are evaluated by benchmark problems of simple cubic model. Having the result of parametric analyses, method-B is superior than method-A in terms of low required memory and short elapsed time. The method, which is proved better, is being used by GeoFEM project to simulate solid earth behavior by parallel FEM.
