Article | 3rd International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools; Oslo; Norway; October 3 | Profiling of Modelica Real-Time Models

Title:
Profiling of Modelica Real-Time Models
Author:
Christian Schulze: Technische Universität Clausthal, Institut für Informatik, Germany Michaela Huhn: Technische Universität Clausthal, Institut für Informatik, Germany Martin Schüler: TLK-Thermo GmbH, Deutschland
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Year:
2010
Conference:
3rd International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools; Oslo; Norway; October 3
Issue:
047
Article no.:
003
Pages:
23-31
No. of pages:
9
Publication type:
Abstract and Fulltext
Published:
2010-09-21
ISBN:
978-91-7519-824-8
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


Modeling and simulation of physical systems have become a substantial part in the development of mechatronic systems. A number of usage scenarios for such models like Rapid Control Prototyping and Hardware-in-the-Loop testing require simulation in real-time. To enable model execution on a hard real-time target; a number of adaptations are usually performed on the model and the solver. However; a profiling facility is needed to direct the developer to performance bottlenecks.

We present the concepts and a prototypical implementation of a profiler for the specific analysis of Modelica models running on Scale-RT; a Linux-based real-time kernel. The profiler measures the number of calls and execution times of simulation specific functions calls. Interpreting these results; the developer can directly deduce which components of a simulation model are most promising for optimization. Profiling results and their impact on model optimization are discussed on two case studies from the area of thermodynamic automotive systems.

Keywords: Real-Time; Modelica; Profiling; Optimization; SimulationX; Scale-RT

3rd International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools; Oslo; Norway; October 3

Author:
Christian Schulze, Michaela Huhn, Martin Schüler
Title:
Profiling of Modelica Real-Time Models
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3rd International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools; Oslo; Norway; October 3

Author:
Christian Schulze, Michaela Huhn, Martin Schüler
Title:
Profiling of Modelica Real-Time Models
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