Using SPARK as a solver for Modelica

TitleUsing SPARK as a solver for Modelica
Publication TypeConference Proceedings
Year of Publication2008
AuthorsWetter, Michael, Philip Haves, Michael A. Moshier, and Edward F. Sowell
Conference NameProc. of the 3rd SimBuild Conference
Date Published08/2008
Conference LocationBerkeley, CA, USA

Modelica is an object-oriented acausal modeling language that is well positioned to become a de-facto standard for expressing models of complex physical systems. To simulate a model expressed in Modelica, it needs to be translated into executable code. For generating run-time efficient code, such a translation needs to employ algebraic formula manipulations. As the SPARK solver has been shown to be competitive for generating such code but currently cannot be used with the Modelica language, we report in this paper how SPARK's symbolic and numerical algorithms can be implemented in OpenModelica, an open-source implementation of a Modelica modeling and simulation environment. We also report benchmark results that show that for our air flow network simulation benchmark, the SPARK solver is competitive with Dymola, which is believed to provide the best solver for Modelica.

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