Welcome to the SimElements web site!

SimElements is a Python-based package for dynamic/continuous and discrete event simulation. It also has provisions for uncertainty analysis and optimization.

SimElements is entirely based on Python and requires Python 3.0 or later versions. Nothing else is needed in order for it to work: no NumPy, no SimPy, no *Py, no nothing, except Python 3.x. No recompilation or relinking of your present implementation of Python is needed: you may place SimElements in any directory on your computer and use it immediately.

Python programming is needed to set up a simulation using SimElements. SimElements provides a number of classes, modules and functions for solving problems with as little programming effort as possible. Normally, no additional definition of classes will be necessary, so setting up a simulation can be carried out with prodecural type programming (although you will have to punch out objects using classes provided by SimElements). SimElements offers statistical output processing, but does not have a graphical user interface, and no graphical output features. Spreadsheet (tab-delimited) format output is supported, though. SimElements comes with an extensive docstring documentation.

SimElements is offered free of charge under a GNU General Public License.

Here are a couple of Python source code demos of how to use SimElements (will open in new windows):
host_parasite.py
mm1queue.py
These examples provide the solutions to very basic, simple problems. SimElements has lots of capabilities for solving much more complex problems.

Read (and download) the short introduction to SimElements in pdf format here: A4 (European format) or US Letter!

Check out the docstring documentation on line: SimElements docstring documentation (opens in a new window)

Click one of the links below to download the source files of SimElements:
simelements.tar.gz    or    simelements.zip
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Click one of the links below to download the docstring documentation in html format:
simelements_docstrings.tar.gz    or    simelements_docstrings.zip
You may have to click the back button or refresh to get back to this page.

The two demo source files and a few more that you may need - including a script for computing machine constants that is highly recommended - may be downloaded here:
simelements_demos_and_auxiliary.tar.gz    or    simelements_demos_and_auxiliary.zip
You may have to click the back button or refresh to get back to this page.

Python may be downloaded from the Python website www.python.org.

You may contact me/the author (Nils Kjellbert) by email using the email address in the License Header of the SimElements source files - or you may use the form below. Questions, opinions, ideas and suggestions are welcomed!