Development of a Computer Specific to LSI Geometrical Processing

本研究的目的是开发一种能够快速处理几何图形的专用计算机。几何图形处理是当前大规模集成电路设计的基本功能。它包括逻辑、拓扑和几何运算以及面积/长度计算。本研究旨在解决当前大规模集成电路设计过程中的瓶颈问题。本研究的结果如下1。大规模集成电路设计规则校验（DRC）中并行处理的加速专用于LSI dr3的计算机系统的开发。一种基于功能划分的DRC方法。功能存储器型并行处理器的研制。我们构建了一个计算机系统来评估上述结果。控制所有处理器元件（称为工人）的主计算机是使用68040个处理器的标准工程工作站。我们开发了四个全新的工人。工作器使用双端口内存模块同时执行数据输入和输出。工作中的DRC处理单元是一个单板计算机，由一个称为M32/100的CPU组成。并开发了控制系统和执行DRC的软件包。这个有两个工人的系统执行DRC的速度比只有一个工人的系统快两倍。

The objective of this research is that we should develop a specific computer which performs geometrical-figure processing very rapidly. The geometrical-figure processing is the primitive function in the current LSI design. It comprises logical, topological and geometrical operations and also area/length calculation.This research aimed to dissolve the bottle-neck in the current LSI design process by that specific computer.The results of this research are as follows1.Acceleration of parallel processing in LSI design rule check (DRC)2.Development of a computer system specific to LSI DRC3.A method of DRC by functional partitioning.4.Development of a functional memory type parallel processor.We constructed a computer system to evaluate the above results. A host computer which controls all processor elements (called workers) is a standard engineering work station using 68040 processors. We developed four brand-new workers. The worker performs data input and output simultaneously using two-port memory modules. The DRC processing unit in the worker is a single-board computer which comprises a CPU called M32/100. And also we developed software packages which control the system and performs DRC.This system with two workers performs DRC twice faster than that with a single worker.