High Performance N-Body Computing

我们，在日本方面，正在制造一个Tera flops机器，用于引力许多身体问题。这个项目的目的是与英国集团合作，为我们的特殊用途Tera flops机器制作软件。我们1993财政年度项目的总结如下：Taiji和Hachisu已经完成了Hermite积分器的新板HARP-3的设计。在1994年6月底之前，该板的一份副本将转交给剑桥大学天文研究所。阿尔塞斯将用这块板子为我们的特拉计算机开发他的赫米特代码。Aarseth于1994年3月5日至3月17日在东京大学学习。他成功地将他的赫米特代码实现到我们的测试机HARP-2中，并证明了赫米特代码对于集成碰撞n体系统的演化是有用的。八须、船渡和稻垣访问了剑桥大学天文研究所，并与英国小组进行了讨论。我们现在正在开发工具来处理我们的n体代码中的双星演化、恒星捕获和星-星碰撞。

We, in Japan side, are making a Tera flops machine for gravitational many body problems. The purpose of this project is to make softwares for our special-purpose Tera flops machines under a cooperation with the UK group. The summary of our 1993 fiscal year project is as follows:1.Taiji and Hachisu have finished designing a new board for Hermite integrator, which is called HARP-3. A copy of the board will be transferred into Institute of Astronomy, Cambridge University until the end of June, 1994. Aarseth will use the board to develop his Hermite code for our Tera flops machine.2.Aarseth has stayed at the University of Tokyo from 5th of March to 17th of March, 1994. He succeeded in implementing his Hermite code into our test machine, HARP-2, and proved that the Hermite code is useful to integrate the evolution of collisional N-body systems.3.Hachisu, Funato, and Inagaki visited the Institute of Astronomy, Cambridge University and discussed with the UK group. We are now developing tools to treat binary evolutions, star captures, and star-star collisions in our N-body code.