AG VLSI Design and Architecture

SFB 501 - Project D1: Application System "Buildings"

PSiGene

Example

 [PSiGene]



Introduction

The following example shows how a simple building simulator can be constructed using PSiGene. The building that should be simulated consists of several rooms that are connected by walls. Each room may have one or more radiators installed. The goal is to simulate the temperature in all of the rooms. Radiators are treated as heat sources. Walls act as thermal resistance between two rooms (the heat storage capacity of walls is neglected in this simple example). A special Room "Environment" can be defined to act as heat sink.
The following steps show how a complete simulator for our building can be modelled. These steps mainly take place in the prescribed order although usually some iterations are done.

  1. MOOSE Model
  2. Pattern Bindings
  3. Generating the Simulator
  4. Defining Instances
  5. Running the Simulator

We have also modelled several variants of a more complex example (see slide, gzipped postscript). This simulator consists of about 15 objecttypes, 25 Patterns from which about 5300 lines of code have been generated. A typical building with 9 rooms and several doors and windows consists of about 300 objects.

Comparing the time used to model and generate a simulator using PSiGene with a manually written simulator shows that it is much more efficient using our method even if some patterns which are missing in our catalog have to be created. Building variants of a simulator is a matter of minutes to hours (from the concept to the running simulator), depending on the amount of changes. Pure code generation is a matter of seconds.

Step I Start Trip Table of Contents PSiGene