Parallel PIC Code Using Java on PC Chuster

摘要

The Java language has emerged as a dominant lan-guage that could eventually replace C++M due to its features of object-oriented, architecture neutral, multi-threaded etc, and its support for applet. But Java is believed to be "too slow' for scientific computing. Re-cently many high-performance PC_s as those based on Pentium II have been introduced, and those PC_s have a high potential for high-performance computing. We are currently building a dual PentiumPro PC cluster. In this report, using a test skeleton-PIC-clde developed by Prof. V.K.Decyk of UCLA for benchmarking purpose, we have measured the performance of the Java lan-guage in serial and parallel on our PC cluster compared with the Fortran language which is the main language for scientific computing. In our benchmarking. we use JavaMPI as an interface to MPE for message passing between PC_s through 100Base-TX/10Base-T ethernet swithch. The benchmark results indicate that the Java language is a good candidate for scientific computing.