Exploiting Partitioning In Asymptotic Waveform Evaluation (AWE)

Asymptotic Waveform Evaluation (AWE) is an efficient technique for simulating linear(ized) circuits. AWE is typ- ically orders of magnitude faster than traditional methods. In this paper, partitioning techniques for AWE are pre- sented that allow it to handle circuits in partitioned form. Partitions can be handled either at the moment level be- fore AWE'S Pad6 approximation, or afterwards, at the pole level. These methods allow the efficient incorporation of general nonlinearities into AWE, the efficient simulation of both lumped and distributed models for transmission lines, and the symbolic analysis of linear(iaed) circuits. Practical examples illustrate the significant savings in both memory utilization and execution time, as compared to non-partitioned AWE simulations.

[1]  Lawrence T. Pileggi,et al.  RICE: rapid interconnect circuit evaluator , 1991, 28th ACM/IEEE Design Automation Conference.

[2]  Vivek Raghavan,et al.  AWEsim: a program for the efficient analysis of linear(ized) circuits , 1990, 1990 IEEE International Conference on Computer-Aided Design. Digest of Technical Papers.

[3]  Robert K. Brayton,et al.  The Sparse Tableau Approach to Network Analysis and Design , 1971 .

[4]  M. A. Tan,et al.  Piecewise linear asymptotic waveform evaluation for transient simulation of electronic circuits , 1991, 1991., IEEE International Sympoisum on Circuits and Systems.

[5]  Vivek Raghavan,et al.  AWESpice: a general tool for the accurate and efficient simulation of interconnect problems , 1992, [1992] Proceedings 29th ACM/IEEE Design Automation Conference.

[6]  Albert E. Ruehli,et al.  The modified nodal approach to network analysis , 1975 .

[7]  R. A. Rohrer.  Circuit partitioning simplified , 1988 .

[8]  Lawrence T. Pileggi,et al.  Asymptotic waveform evaluation for timing analysis , 1990, IEEE Trans. Comput. Aided Des. Integr. Circuits Syst..