A parallel solver for structural modal analysis based on commercial FEA code

This paper describes one promising parallel algorithm and software system for structural modal analysis. The supercomputer “ShenWei I” is taken as the parallel computing environment and the finite element code MSC.NASTRAN is taken as the development platform. The purpose of the research and development is to make the dominating computing work of modal analysis parallelized, and, moreover, make the parallel solver tightly coupled with original analysis code. The integrated software system includes a serial FEA (Finite Element Analysis) and parallel solver and has a friendly interface. It can significantly improve the scale and velocity of structural modal analysis. It contributes to dynamic performance analysis for massive structures.