Development of a Computer Specific to LSI Geometrical Processing

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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.