Ptolemy II 5.0
Christopher Brooks, Edward A. Lee, Xiaojun Liu, Stephen Neuendorffer, Yang Zhao, Haiyang Zheng, Gang Zhou, Ye Zhou

Citation
Christopher Brooks, Edward A. Lee, Xiaojun Liu, Stephen Neuendorffer, Yang Zhao, Haiyang Zheng, Gang Zhou, Ye Zhou. "Ptolemy II 5.0". UC Berkeley, 21, July, 2005.

Abstract
Ptolemy II is a software framework developed as part of the Ptolemy Project. It is a Java-based component assembly framework with a graphical user interface called Vergil. Vergil itself is a component assembly defined in Ptolemy II.

The Ptolemy project studies modeling, simulation, and design of concurrent, real-time, embedded systems. The focus is on assembly of concurrent components. The key underlying principle in the project is the use of well-defined models of computation that govern the interactions between components. A major problem area being addressed is the use of heterogeneous mixtures of models of computation.

The Ptolemy Project web page contains much more information about the project. The work is conducted in the Department of Electrical Engineering and Computer Sciences of the University of California at Berkeley. The project is directed by Prof. Edward Lee. The project is named after Claudius Ptolemaeus, the second century Greek astronomer, mathematician, and geographer.

Ptolemy II 5.0.1 includes

• A Dynamic Dataflow (DDF) domain, in which actors are fired in response to available input data.
• Modeling of Hybrid systems. Hybrid systems are a special case of modal models where finite-state machines (FSMs) are combined with the continuous-time (CT) models to get mixed continuous-time and discrete-event models.
• Stochastic hybrid systems, which add random behavior to continuous-time models mixed with discrete events.
• Heterochronous Dataflow (HDF), which is an extension of synchronous dataflow (SDF) that permits dynamically changing production and consumption patterns without sacrificing static scheduling.

Electronic downloads

• http://ptolemy/ptolemyII/ptII5.0/index.htm

Citation formats

• HTML

  Christopher Brooks, Edward A. Lee, Xiaojun Liu, Stephen
  Neuendorffer, Yang Zhao, Haiyang Zheng, Gang Zhou, Ye Zhou.
  <a
  href="http://chess.eecs.berkeley.edu/pubs/47.html"
  ><i>Ptolemy II 5.0</i></a>, UC
  Berkeley, 21, July, 2005.

• Plain text

  Christopher Brooks, Edward A. Lee, Xiaojun Liu, Stephen
  Neuendorffer, Yang Zhao, Haiyang Zheng, Gang Zhou, Ye Zhou.
  "Ptolemy II 5.0". UC Berkeley, 21, July, 2005.

• BibTeX

  @software{BrooksLeeLiuNeuendorfferZhaoZhengZhouZhou05_PtolemyII50,
      author = {Christopher Brooks and Edward A. Lee and Xiaojun
                Liu and Stephen Neuendorffer and Yang Zhao and
                Haiyang Zheng and Gang Zhou and Ye Zhou},
      title = {Ptolemy II 5.0},
      institution = {UC Berkeley},
      day = {21},
      month = {July},
      year = {2005},
      abstract = {Ptolemy II is a software framework developed as
                part of the <a
                href="http://ptolemy.eecs.berkeley.edu/index.html"
                target="_top">Ptolemy Project</a>. It is a
                Java-based component assembly framework with a
                graphical user interface called Vergil. Vergil
                itself is a component assembly defined in Ptolemy
                II. </p> <p> The Ptolemy project studies modeling,
                simulation, and design of concurrent, real-time,
                embedded systems. The focus is on assembly of
                concurrent components. The key underlying
                principle in the project is the use of
                well-defined <i>models of computation</i> that
                govern the interactions between components. A
                major problem area being addressed is the use of
                heterogeneous mixtures of models of computation.
                </p> <p> The <a
                href="http://ptolemy.eecs.berkeley.edu/index.html"
                target="_top">Ptolemy Project web page</a>
                contains much more information about the project.
                The work is conducted in the <a
                href="http://www.eecs.berkeley.edu/"
                target="_top">Department of Electrical Engineering
                and Computer Sciences</a> of the <a
                href="http://www.berkeley.edu/"
                target="_top">University of California at
                Berkeley</a>. The project is directed by <a
                href="http://ptolemy.eecs.berkeley.edu/~eal/index.html"
                target="_top">Prof. Edward Lee</a>. The project is
                named after <a
                href="http://ptolemy.eecs.berkeley.edu/people/ptolemy.htm"
                target="_top">Claudius Ptolemaeus</a>, the second
                century Greek astronomer, mathematician, and
                geographer. </p> <p> <p>Ptolemy II 5.0.1 includes
                <ul> <li> A Dynamic Dataflow (DDF) domain, in
                which actors are fired in response to available
                input data. <li> Modeling of Hybrid systems.
                Hybrid systems are a special case of modal models
                where finite-state machines (FSMs) are combined
                with the continuous-time (CT) models to get mixed
                continuous-time and discrete-event models. <li>
                Stochastic hybrid systems, which add random
                behavior to continuous-time models mixed with
                discrete events. <li> Heterochronous Dataflow
                (HDF), which is an extension of synchronous
                dataflow (SDF) that permits dynamically changing
                production and consumption patterns without
                sacrificing static scheduling. </ul> },
      URL = {http://chess.eecs.berkeley.edu/pubs/47.html}
  }
  

Posted by Christopher Brooks on 4 May 2006.
Groups: ptolemy
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