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Distributed logic simulation: time-first evaluation vs. event driven algorithms

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2 Author(s)
Sundaram, S. ; Supercomput. Educ. & Res. Centre, Indian Inst. of Sci., Bangalore, India ; Patnaik, L.M.

With the increasing complexity of VLSI circuits, simulation of digital circuits is becoming a more complex and time-consuming task. General purpose parallel processing machines are increasingly being used to speed up a variety of VLSI CAD applications. All previous works on mapping sequential logic simulation algorithms onto general purpose parallel machines were centered around using event-driven algorithm, and do not satisfactorily address the suitability of a particular sequential algorithm for parallel implementation. In this paper, we present analysis of two distributed simulation algorithms: the centralized-time event-driven algorithm and the time-first evaluation algorithm, mapped onto a network of workstations. We present results over a wide range of ISCAS85 and ISCAS89 benchmark circuits, to show that the time-first evaluation algorithm is likely to be a viable alternative to the event-driven algorithm in the domain of parallel logic simulation

Published in:

VLSI Design, 1996. Proceedings., Ninth International Conference on

Date of Conference:

3-6 Jan 1996

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