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本文论述的是大规模多处理机系统的一种新式的模块化交叉开关,而且特别详细地论述了其模块化的设计原理。本设计原理的关键之点是使用位串式总线以及将本身具有微程序控制器的诸交叉点(把它称为“布局处理器”)组成一个标准部件,若能做成一块集成电路更好。这种新思想允许用较低的成本实现多达128台处理机系统的交叉开关。对于一个约有1024个处理单元的系统来说交叉开关的价格与整个系统其它部分的价格差不多。在大规模多处理机系统中具体实现这样一个交叉开关的工作目前正在奥地利林兹市的约翰尼斯·凯普勒大学进行。本文将详细地讨论它的实现方法,并着重说明其功能部件的组成及其硬件的代价。因为还没有生产出集成电路来实现上述这种新型的交叉开关部件,所以这要用在印制电路板上使用标准的大规模集成电路的方法来实现。
This article discusses a new modular crossbar switch for large-scale multiprocessor systems, and discusses in more detail its modular design philosophy. The key point of this design principle is to use the bit-serial bus and the intersection of its own micro-controller (called it “layout processor”) to form a standard component, if it can be made into an integrated circuit . This new idea allows crossbar switching of up to 128 processor systems at a lower cost. For a system with about 1024 processing units, the price of a crossbar is about the same as that of the rest of the system. The implementation of such a crossbar in a large-scale multiprocessor system is currently under way at Johannes Capur College in Linz, Austria. This article discusses in detail how it is implemented, with a focus on the components of its features and the cost of their hardware. Because no integrated circuit has yet been produced to implement such a new type of crossbar switch component as described above, this is achieved by using a standard LSI on a printed circuit board.