The Advantages of HP-MPI for MPP LS-DYNA

The standard portable message-passing library MPI is the software tool that drives the parallelism in MPP LS- DYNA. MPI is required to operate in a complex environment: Currently, the major computer architectures include X86, X86_64, and Intel Itanium 2; the major operating systems include Linux, Window, and UNIX; diverse interconnects and switches, using different protocols, are offered by various vendors; and furthermore, in recent years most computer architectures have been evolved into multiple-core from single-core architecture. A well- implemented MPI should achieve the following goals in such a complex environment: (1) supporting all major computer architectures, operating systems, interconnects and switches; (2) being user friendly; (3) being optimized for the performance of the application. In this paper, an in-depth demonstration, using MPP LS-DYNA, on how HP- MPI achieved these goals is presented.