Graph-Based Algorithms for Boolean Function Manipulation
IEEE Transactions on Computers
Performance optimization of digital circuits
Performance optimization of digital circuits
Switching-activity driven gate sizing and Vth assignment for low power design
ASP-DAC '06 Proceedings of the 2006 Asia and South Pacific Design Automation Conference
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In this paper, we propose a new method to optimize a performance of a very large circuit. We find the best set of local transformations to be applied to the circuit, by inserting “padding nodes” on non-critical edges of the circuit, and calculating separator sets of the circuit using separator sets. Our method is robust for very large circuits, because its memory usage and calculation time are linear and polynomial order with the size of the circuit.According to our experimental results, our method has accomplished all circuits, while K. J. Singh's selection function method has aborted with three large circuits because of memory overflow. The results also shows our method has a comparable capability in delay optimization to Singh's method.