Ptolemy II 8.0.1
This is not the most recent version of Ptolemy II. The most recent version can be found at


October 28, 2010 - Ptolemy II 8.0.1 is available for download

Ptolemy II 8.0.1 Common Downloads

  • Windows 32-bit Installer Includes sources, binaries, jars and JRE
  • Windows 64-bit Installer Includes sources, binaries, jars and JRE
    See the Windows page for problems and solutions, along with a link to the devel versions
  • Mac OS X Installer Includes sources, binaries and jars
  • Sources Only: Unix Line Endings - Windows Line Endings
  • Web copy, includes Applets.
  • Web Start
  • The Ptolemy II development sources are always available via Subversion These sources are experimental and contain changes since Ptolemy II 8.0.1.
  • For an overview of Ptolemy II, see the Ptolemy II FAQ What is Ptolemy II? or see the Ptolemy II Tour.

    Ptolemy II 8.0.1 includes the following major new work since the previous release:

    • Model Transformation - a framework for the analysis and transformation of actor models using model transformation techniques.

      Primary Developer: Thomas Huining Feng

    • Ptera (Ptolemy Event Relationship Actor) Domain

      Primary Developer: Thomas Huining Feng

    • Causality Analysis: Updates to our non-conservative causality analysis for modal models within discrete-event (DE) systems.

      Primary Developers: Edward A. Lee, Ye Zhou

    • Continuous and Modal Domains: a substantial rework of modal models and the underlying finite state machine infrastructure to make them work predictably and consistently across domains.

      Primary Developers: Haiyang Zheng, Edward A. Lee

    The Ptolemy II 8.0.1 Release Notes include a list of new features and actors.

    Quick Start Instructions

    Ptolemy II is available in several formats:

    You can browse Ptolemy II and run demonstration applets without downloading the distribution by accessing the web copy.
    The web copy is merely a set of web pages that were created when we untar'd the distribution on the Ptolemy web site and then added Web Start versions of the applets.
    To access Ptolemy II via the applets, you can either go directly to the web copy, or go to the Ptolemy II 8.0.1 Applets page for more information.
    Mac OS X
    To download a Mac OS X Installer, see the Ptolemy II 8.0.1 Windows Installer page.
    Web Start
    Web Start is a tool from Sun that makes installation and updates particularly simple.
    The Web Start installation works best with Windows, but has also been tried under Solaris, Linux and Mac OS X.
    The Web Start installation does not include source, but behaves almost exactly like a standalone installation: you can save models locally, and you need not be connected to the net after the initial installation.
    Note that the Applet web copy and the Web Start installations are different, the web copy is a set of web pages where some of the pages contain applets, and Web Start is a set of jar files that get downloaded to your machine so that you can run Ptolemy II at a later time, even if you are not connected to the network. For details, see the Installation Summary
    To download using Web Start, see the Ptolemy II 8.0.1 Web Start page.
    Windows Installer
    To download a Windows Installer, see the Ptolemy II 8.0.1 Windows Installer page.
    The source distribution requires either the Cygwin tools, Eclipse or some other way of running commands like make.
    After building Ptolemy II from source, start vergil from the command line and follow the tour.
    The source distribution has been compiled and run under Windows, Solaris and Linux.
    If you intend to develop your own actors in Java, then you should download the source distribution.
    To download source, see the Ptolemy II 8.0.1 Source Download page and then follow the installation instructions.


    The table below is a summary that compares and contrasts the various installers.
    Download Format Requirement Platform Size Create your own models? Require net connection at runtime? Custom Actor creation? (download includes sources) Code generator?
    Applets The applets work best with the Locally, we used Java 1.5.0_22 and Java 1.6.0_21.
    See also the Java plugin
    Windows, Linux, MacOS X, Solaris Initially ~5 Mb No Yes No No
    Web Start Java Web Start Windows, Linux, MacOS X, Solaris ~62 Mb Yes Not required, but can get updates if connected No No
    Windows Installer Windows only. 1.5.0_22 Java Runtime Environment with support packages like Java 3D Windows only 235-247 Mb Yes No Yes No
    Mac OS X Installer Mac OS X, Might work for Linux? Mac OS X, maybe Linux 196 Mb Yes No Yes No
    Source Download JDK 1.5.0 or JDK 1.6.0, Devel. tools like make Windows, Linux, Mac OS X, Solaris 75 Mb - 85 Mb Yes No Yes Yes

    Places to go

  • The "Using Vergil" chapter from the Ptolemy II Design Document
  • Limitations