PPT Slide

5. Summary

We will find little difficulty in translating the 3D global MHD

simulation code from VPP Fortran to HPF/JA, and we can expect an

almost comparable performance on Fujitsu VPP5000.

The maximum performance of the 3D MHD code was over 230 Gflops for

32 PEs and over 400 Gflops for 56 PEs on Fujitsu VPP5000.

We hope that the MHD code rewritten in HPF/JA can be executed

on other supercomputers such as Hitachi SR8000 and NEC SX-5 and

that HPF/JA becomes a common language in the supercomputer world.

I believe that this is a necessary condition to restart a new and higher

level of collaborative research on 3D global MHD simulation of the

magnetosphere with other scientists around the world. I expect efforts by

simulation scientists as well as by the Japanese supercomputer companies

to reach this goal.

We have made available a part of the boundary condition in the HPF/JA

MHD code and a test program of the 3D wave equation at the following Web

address:

http://gedas.stelab.nagoya-u.ac.jp/simulation/hpfja/hpf01.html.