A Multicircuit Simulator Based on Inverse Jacobian Matrix Reuse

A Multicircuit Simulator Based on Inverse Jacobian Matrix Reuse

This paper proposes a technique, GALAXY, to speed up multicircuit simulation, where each circuit under simulation is identical in schematic but different in some parameters. GALAXY is based on the successive chord method, where the inverse Jacobian matrix (J -1 ) is reused to simulate many circuits...

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Veröffentlicht in:IEEE transactions on computer-aided design of integrated circuits and systems 2016-07, Vol.35 (7), p.1130-1137
Hauptverfasser: Hung-I Lee, Chen-Yo Han, Li, James Chien-Mo
Format: Artikel
Sprache:eng
Schlagworte:
Accuracy
Circuit simulation
Circuits
Computational modeling
Computer simulation
Convergence
Design engineering
Galaxies
Integrated circuit modeling
Inverse
Jacobi matrix method
Jacobian matrix
Mathematical model
Reuse
Runtime
Successive Chord Method
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Beschreibung
Zusammenfassung:This paper proposes a technique, GALAXY, to speed up multicircuit simulation, where each circuit under simulation is identical in schematic but different in some parameters. GALAXY is based on the successive chord method, where the inverse Jacobian matrix (J -1 ) is reused to simulate many circuits whose solutions are similar. GALAXY also speeds up singlecircuit simulation by reusing J -1 between consecutive time steps. Compared with a traditional Newton-Raphson (NR) simulator, on average, GALAXY reduces runtime of single-circuit and multicircuit simulation by 44% and 71%, without loss of accuracy. The number of NR iterations is reduced by 78%.
ISSN:0278-0070
1937-4151
DOI:10.1109/TCAD.2015.2501308