【摘要】 介绍了一种新型的并行计算机ＥＰ－８６０并行群联计算机系统。由于它采用了独特的广播存储器技术，使整个系统兼有着松散耦合和紧密耦合两种系统的优点。系统具有良好的可扩展性，方便用户编程。用户编程时只需将共享变量定位到广播存储器中，用访存指令即可实现通信，无需专门的通信命令。本文的重点是描述ＥＰ－８６０的体系结构及其扩展性。更多还原

【Abstract】 Recent development of microprocessor and parallel processing technique gievs us the opportunity to build for Northwestern Polytechnical University a high-performance parallel computer at much lower cost than before. This paper presents our results on its architecture. It consists of 1-64 clusters. Each cluster has 81860--based computing nodes, conected with broadcasting memory. EP-860 can achieve a peak-performance of 40 GFLOPS. EP 860 has following advantages:1. Innovation technique--broadcasting memory connection technique’ In our EP-860,each node has its own food memory. Besides, a dual-port SRAM with relatively small capacity is used for shared variables. One port is for "local read" and another is for "broadcasting shared Variable". Therefore, there is no bottle -- neck problem as usually encountered is conventional shared memory system. The communication rate can be as high as the selected dual-port memory allows, that iS, EP-860 combines the advantages of both the shared memory and the distributed - memory parallel computers. It has a good scalabllity and can make preparation of parallel program easier.2. Visualized parallel programming environment. The design of parallel program is a very complex pr～s’ In order to so1Ve this problem, a visualized parallel programming environment is designed, whiCh includes a user-friendly interfsce, a chualized configuration tool, a visualized parallel program execution dynamic monitor, a visualized parallel programperformance analysis tool and a parallel program debugger. It allows the user to develop, todebug, and to optimize parallel program quite easily.EP-860 is now operational at Northwestern Polytechnical University. It works reliably.更多还原