Super－Object模型：在分布存储器多计算机上实现共享存储器程序设计模式

SUPER-OBJECT MODEL:IMPLEMENTING SHARED MEMORY PROGRAMMING MODE ON DISTRIBUTED MEMORY MULTICOMPUTERS

Ｓｕｐｅｒ－Ｏｂｊｅｃｔ模型提出了一种新的方法，在分布存储器多计算机上实现语言级虚拟共享存储器以支持共享存储器通信模式．Ｓｕｐｅｒ－Ｏｂｊｅｃｔ模型引入新的概念ｓｕｐｅｒ－ｏｂｊｅｃｔ，不同于其它模型，基于ｓｕｐｅｒ－ｏｂｊｅｃｔ，它提出了新的共享数据定位方法，全局地址标识（ｎａｍｅ，ｏｆｆ－ｓｅｔ）．Ｓｕｐｅｒ－Ｏｂｊｅｃｔ模型与Ｆｏｒｔｒａｎ７７结合，我们实现了一个运行时间系统和库调用，支持程序员使用Ｆｏｒｔｒａｎ语言编写并行程序，最后介绍了系统的实现和取得的性能．

Super-Object model provides a new way to implement a virtually shared memory level that supports shared memory programming mode on distributed memory multicomputers.Super-Object model is unique among existing DSM models in its use of the concept of super-object.In this model,each data has a global address(name,offset) which provides a convenient way for locating shared data.Combining Fortran 77 with Super-Object model.a run-time system and a set of calls for shared memory parallel programming are implemented.Distributed shared memory level implemented by software is layered on-top of UNIX operating system and message passing primitives of Oak Ridge PVM.A prototype system is currently in operation.This paper also evaluates its implementation and performance.