PPT Slide

1. Background and Problems

3D global MHD simulation of the interaction between the solar wind and

earth's magnetosphere could be executed on a variety of the vector

supercomputers using a fully vectorized MHD code.

CRAY Y-MP, Fujitsu VP-2600, Hitachi S820, and NEC SX-3

This flexibility allowed us to work together with many scientists

executing computer simulations.

Vector parallel and massively parallel supercomputers have come

into the simulation community, we have lost our common language.

For example, the vector parallel supercomputer, Fujitsu VPP500 and

VPP5000 could achieve a high performance by VPP Fortran, however

other supercomputers such as Hitachi SR8000 and NEC SX-5 cannot

do by it.

Therefore, we expect a common language in the supercomputer world.

High Performance Fortran (HPF) and Message Passing Interface (MPI)