Modelling high-order filters in a transient microwave circuit simulator

Hart, F.P.; Luniya, Sonali R.; Nath, J.; Victor, A.; Walker, A.; Steer, M.B.

doi:10.1049/iet-map:20060231

Cited by 1 publication

(1 citation statement)

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“…Consequently, element-level convergence control is not required. In this methodology, the iterative solver works on the state variable x. fREEDA uses an energy norm error that, for an electronic circuit, is akin to a combination of Kirchhoff's voltage law and Kirchhoff's current law (KCL) and, for analog circuits, leads to high dynamic range simulation [26], [27]. This enables circuits with little current to be solved robustly and enables LRGs in different physical domains to be solved without needing to make quantities look like currents or voltages.…”

Section: Modeling Conceptsmentioning

confidence: 99%

Parallel Transient Simulation of Multiphysics Circuits Using Delay-Based Partitioning

Priyadarshi

Saunders

Kriplani

et al. 2012

IEEE Trans. Comput.-Aided Des. Integr. Circuits Syst.

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A parallel transient simulation technique for multiphysics circuits is presented. The technique develops partitions utilizing the inherent delay present within a circuit and between physical domains. A state-variable-based circuit delay element is presented, which implements the coupling between two spatially or temporally isolated circuit partitions. A parallel delay-based iterative approach for interfacing delay-partitioned subcircuits is applied, which achieves the reasonable accuracy of nonparallel circuit simulation if both incorporate the same interblock delay. The partitioned subcircuits are distributed to different cores of a shared-memory multicore processor and solved in parallel. A multithreaded implementation of the methodology using OpenMP is presented. Examples showing superlinear speedup compared to unpartitioned single-core simulation using the direct method are presented. This paper also discusses the impact of load balancing and absolute delay on simulation speedup.

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Section: Modeling Conceptsmentioning

confidence: 99%