Mini-step Strategy for Transient Analysis

Details Mini-step Strategy for Transient Analysis Mini-step Strategy for Transient Analysis

2011-03-12

arxiv.org/abs/1103.2447v1

Computer Science

Computational Engineering, Finance, and Science

a preprint version, full version is submitted to an international journal

Scientific paper

Domain decomposition methods are widely used to solve sparse linear systems from scientific problems, but they are not suited to solve sparse linear systems extracted from integrated circuits. The reason is that the sparse linear system of integrated circuits may be non-diagonal-dominant, and domain decomposition method might be unconvergent for these non-diagonal-dominant matrices. In this paper, we propose a mini-step strategy to do the circuit transient analysis. Different from the traditional large-step approach, this strategy is able to generate diagonal-dominant sparse linear systems. As a result, preconditioned domain decomposition methods can be used to simulate the large integrated circuits on the supercomputers and clouds.

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