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Generation of Sparse Jacobians for the Function Mock-Up Interface 2.0

Johan Åkesson
Lund University, Department of Automatic Control, Lund/Modelon AB, Lund, Sweden

Willi Braun
University of Applied Sciences Bielefeld, Bielefeld, Germany

Petter Lindholm
Lund University, Department of Mathematics, Lund, Sweden

Bernhard Bachmann
University of Applied Sciences Bielefeld, Bielefeld, Germany

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp12076185

Ingår i: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Linköping Electronic Conference Proceedings 57:18, s. 185-196

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Publicerad: 2012-11-19

ISBN: 978-91-7519-826-2

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

Derivatives; or Jacobians; are commonly required by numerical algorithms. Access to accurate Jacobians often improves the performance and robustness of algorithms; and in addition; efficient implementation of Jacobian computations can reduce the overall execution time. In this paper; we present methods for computing Jacobians in the context of the Functional Mock-up Interface (FMI); and Modelica. Two prototype implementations; in Jmodelica.org and OpenModelica are presented and compared in industrial benchmarks.

Nyckelord

Functional Mock-up Interface; Analytic Jacobians; Automatic Differentiation; JModelica.org; OpenModelica

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