System Requirements

Table of contents

  1. Operating Systems
    1. Windows
    2. macOS
    3. Linux
  2. Memory
  3. Change the RAM limit

Operating Systems


Simunto Via runs on Windows 7 or newer, including Windows 8 and Windows 10.


Via runs on Mac OS X 10.7.3 (Lion) or later.


Via requires an existing installation of Java 8. Newer versions of Java are currently not yet supported.


Run run Via, make sure you have enough RAM. Small scenarios can usually be visualized with less than 1 GB of RAM. Car-only scenarios with around 1 million agents can be run with around 3 GB of RAM, while multi-modal scenarios with around 1 million agents require about 5 GB of RAM.

Change the RAM limit

Java applications need to have a limit set, how much memory they can use (using the -Xmx argument). To change this limit (e.g. to load bigger scenarios), proceed as follows:

  • On Windows: open the file via64.ini in a text editor and change the corresponding values.
  • On macOS: right-click on the Via application, and choose Show Package Contents. A new window should open. Open the file Contents/Info.plist by double-clicking on it. Change the VMOptions in the Java-section to reflect other memory settings.
  • On Linux: open the via shell script in your favorite text editor. Search for the line that starts with JOPTS=, and change the settings to your requirements.