A parallel algorithm for nonlinear dynamic finite element analysis: methodology, implementation, and applications

摘要

A new parallel algorithm, the elemental decomposition algorithm, and its associated methodology for explicit finite element analysis for a parallel multiple instruction multiple data (MIMD) computer is proposed. This new parallel algorithm is then implemented on Cray-T3D MIMD computers (presently, the new version is Cray-T3E) to develop a massively parallel code for the nonlinear dynamic analysis of shells of revolution. This parallel finite element algorithm required element-level parallelcomputation and parallel interprocessor commumcation. The parallel finite element formulations are briefly discussed to demonstrate their applicability in the development of this new elemental decomposition algorithm. Two large-scale transient problemsare solved using the new parallel finite element code, and measured performances are presented and analyzed in detail. Results show that the Cray-T3D computers are very promising parallel computers for finite element computation.