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- Peter Fritzson, Peter Aronsson, +4 authors David Broman
- 2005

Modelica is a modern, strongly typed, declarative, and object-oriented language for modeling and simulation of complex systems. This paper gives a quick overview of some aspects of the OpenModelica environment â€“ an open-source environment for modeling, simulation, and development of Modelica applications. An introduction of the objectives of the environmentâ€¦ (More)

- Peter Aronsson
- 2006

Modern equation-based object-oriented modeling languages which have emerged<lb>during the past decades make it easier to build models of large and complex<lb>systems. The increasing size and complexity of modeled systems requires high<lb>performance execution of the simulation code derived from such models. More<lb>efficient compilation and codeâ€¦ (More)

- Peter Fritzson, Peter Aronsson, +5 authors Anders Sandholm
- 2006 IEEE Conference on Computer Aided Controlâ€¦
- 2006

Modelica is a modern, strongly typed, declarative, and object-oriented language for modeling and simulation of complex systems. This paper gives a quick overview of some aspects of the OpenModelica environment - an open-source environment for modeling, simulation, and development of Modelica applications. An introduction of the objectives of the environmentâ€¦ (More)

Several approaches for handling the multi-processor scheduling problem have been presented over the last decades, such as scheduling techniques, clustering techniques and task merging techniques. However, the increasing gap between processor speed and communication speed demand more accurate models of parallel computation and efficient algorithms to workâ€¦ (More)

This paper presents improvements on techniques of merging tasks in task graphs generated in the ModPar automatic parallelization module of the OpenModelica compiler. Automatic parallelization is performed on Modelica models by building data dependency graphs called task graphs from the model equations. To handle large task graphs with fine granularity, i.e.â€¦ (More)

- Peter Fritzson, Adrian Pop, +4 authors Jan BrugÃ¥rd
- 2007

Modelica is a modern, strongly typed, declarative, equation-based, and object-oriented language for modeling and simulation of complex systems. Major features are: ease of use, visual design of models with combination of lego-like predefined model building blocks, ability to define model libraries with reusable components, support for modeling andâ€¦ (More)

- Bernhard Bachmann, Peter Aronsson, Peter Fritzson
- EOOLT
- 2007

This paper describes a new solution method applied to the problem initializing DAEs using the Modelica lan-guage. Modelica is primarily an object-oriented equa-tion-based modeling language that allows specification of mathematical models of complex natural or man-made systems. Major features of Modelica are the mul-tidomain modeling capability and theâ€¦ (More)

Modern object oriented modeling techniques, such as the Modelica modeling language, are increasing the capability to model and simulate systems of large size and complexity. Simulation of such large and complex systems is computationally very expensive. The use of parallel computers for simulation of Modelica models is one approach of handling simulation ofâ€¦ (More)

- Peter Fritzson, Adrian Pop, David Broman, Peter Aronsson
- 2009 Australian Software Engineering Conference
- 2009

In this paper we report on a long-term research effort to develop and use efficient language implementation generators in practice. The generator is applied to a number of different languages, some of which are used for projects in industry. The used formal specification style is Operational Semantics, primarily in the form called Natural Semantics,â€¦ (More)

The OpenModelica framework is an Open Source effort for building a complete compiler for Modelica started at the programming environments laboratory at LinkÃ¶ping university. It is written in a language called RML [10], Relational Meta Language, based on natural semantics. Natural semantics is a popular formalism for describing the semantics (i.e. theâ€¦ (More)