Xyce parallel electronic simulator reference guide, version 6.1

Keiter, Eric R.; Mei, Ting; Russo, Thomas V.; Schiek, Richard; Sholander, Peter E.; Thornquist, Heidi K.; Verley, Jason C.; Baur, David G.

doi:10.2172/1200662

Cited by 2 publications

(14 citation statements)

References 5 publications

(5 reference statements)

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“…Xyce and HSPICE have different rules for which characters are allowed in device names and node names. See Section 2.3.2 ("Legal Characters in Node and Device Names") of the Xyce Reference Guide [1] for more details on what is legal in Xyce.…”

Section: Allowed Characters In Node and Device Namesmentioning

confidence: 99%

“…The allowed scaling factors in Xyce are given in Chapter 4 of the Xyce Users' Guide [1]. The main difference is that the "atto" prefix, which is designated by "a" or "A", is acceptable in HSpice but is not accepted by default in Xyce.…”

Section: Scaling Factorsmentioning

confidence: 99%

“…Feedback on additional HSPICE simulation options used by the DARPA POSH performers is welcome, since mapping between options in different circuit simulators is often not straightforward. (Note: the the Xyce Reference Guide [1] has a short discussion of this issue for PSpice and Xyce. Sometimes one PSpice option needs to be mapped into multiple Xyce options, or an option with the same name has a different meaning in those two simulators.)…”

Section: Options Processing and Syntaxmentioning

confidence: 99%

“…So, translation from one netlist format to another is not always a straightforward exercise. The translation process from PSpice to Xyce is discussed in the Xyce Reference Guide [1].…”

Section: Introductionmentioning

confidence: 99%

“…For external open-source users, source code for Xyce can be obtained from our website at xyce.sandia.gov. The Xyce Reference Guide [1] and Users' Guide [3] provide more detail on Xyce syntax and usage. They are also available at our website.…”

Section: Introductionmentioning

confidence: 99%

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Application Note: Syntax Parsing and Feature Differences Between HSPICE and <em>Xyce</em>™

Sholander¹

2019

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This application note describes some known differences in syntax, parsing, and supported features between the HSPICE and Xyce circuit simulators that might be relevant to both internal Sandia Xyce users and other performers on the DARPA Posh Open Source Hardware (POSH) program. It also presents strategies for converting HSPICE netlists and libraries to Xyce netlists and libraries. This version is focused on Release 6.11 of Xyce.

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Section: Allowed Characters In Node and Device Namesmentioning

confidence: 99%

Section: Scaling Factorsmentioning

confidence: 99%

Section: Options Processing and Syntaxmentioning

confidence: 99%

“…So, translation from one netlist format to another is not always a straightforward exercise. The translation process from PSpice to Xyce is discussed in the Xyce Reference Guide [1].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Application Note: Syntax Parsing and Feature Differences Between HSPICE and <em>Xyce</em>™

Sholander¹

2019

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Solving the stochastic Landau-Lifshitz-Gilbert-Slonczewski equation for monodomain nanomagnets : A survey and analysis of numerical techniques

Ament,

Rangarajan,

Parthasarathy

et al. 2016

Preprint

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The stochastic Landau-Lifshitz-Gilbert-Slonczewski (s-LLGS) equation is widely used by researchers to study the temporal evolution of the macrospin subject to spin torque and thermal noise. The numerical simulation of the s-LLGS equation requires an appropriate choice of stochastic calculus and numerical integration scheme. In this paper, we first comprehensively evaluate the accuracy and complexity of various numerical techniques to solve the s-LLGS equation. We focus on implicit midpoint, Heun, and Euler-Heun methods that converge to the Stratonovich solution of the s-LLGS equation. By performing several numerical tests, for both strong (path-wise) and weak (statistical) convergence, we quantify the accuracy of various numerical schemes used to solve the s-LLGS equation. We demonstrate a new method intended to solve stochastic differential equations (SDEs) with small noise (the RK4-Heun method), and test its capability to handle the s-LLGS equation. We also discuss the circuit implementation of nanomagnets for large-scale SPICE-based simulations in a standard hierarchical circuit simulator. We evaluate the efficacy of SPICE in handling the stochastic dynamics of the multiplicative noise in the s-LLGS equation. Numerical schemes such as Euler and Gear, which are typically used by SPICE-based circuit simulators do not yield the expected outcome when solving the Stratonovich s-LLGS equation. While the trapezoidal method in SPICE does solve for the Stratonovich solution, its accuracy is limited by the minimum time step of integration in SPICE. We implement the s-LLGS equation in both its cartesian and spherical coordinates form in SPICE and compare the stability and accuracy of the two implementations. The results in this paper will serve as guidelines for researchers to understand the tradeoffs between accuracy and complexity of various numerical methods and the choice of appropriate calculus to solve the s-LLGS equation.

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Xyce parallel electronic simulator reference guide, version 6.1

Cited by 2 publications

References 5 publications

Application Note: Syntax Parsing and Feature Differences Between HSPICE and <em>Xyce</em>™

Application Note: Syntax Parsing and Feature Differences Between HSPICE and <em>Xyce</em>™

Solving the stochastic Landau-Lifshitz-Gilbert-Slonczewski equation for monodomain nanomagnets : A survey and analysis of numerical techniques

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