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| <title>STEM Quick Start</title> | |
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| <h1>STEM Quick Start</h1> | |
| <p>When you first start STEM it will display the <a href="../interface/perspectives/simulation.html">Simulation | |
| perspective</a> containing a <a href="../interface/views/scenariosview.html">Scenarios view</a>. This | |
| view contains a hierarchical display of the <a | |
| href="../concepts/modelingframework.html#scenario"> Scenarios</a> that | |
| are built in to STEM and are ready to start a Simulation. See | |
| Figures 1 and 2 below. | |
| <p> | |
| <a | |
| href="../interface/perspectives/img/simulationperspective.png"><img | |
| src="../interface/perspectives/img/simulationperspective.png" style="width:800px"></a> | |
| <p>Figure 1. | |
| <p>Expand the tree displayed in the <a | |
| href="../interface/views/scenariosview.html">Scenarios view</a> to | |
| display the available <a | |
| href="../concepts/modelingframework.html#scenario"> Scenarios</a>. | |
| Select one of the displayed <a | |
| href="../concepts/modelingframework.html#scenario"> Scenarios</a> by | |
| "double-clicking" on its title, Figure 2. </p> | |
| <a href="img/quickstart/Fig1_cropped.png"><img | |
| src="img/quickstart/Fig1_cropped.png"></a> | |
| <p>Figure 2 | |
| <p>STEM will immediately begin reading in | |
| the data that defines the Simulation. It's progress is displayed at the | |
| bottom of the window. The amount of time it takes to read in the data | |
| for the Simulation will depend upon the size of the model and the | |
| characteristics of the host computer. On a fast computer with more than | |
| 2 gigabytes of RAM and fast disks the <a | |
| href="../concepts/modelingframework.html#scenario"> Scenario</a> | |
| illustrated in Figure 3, below, will load and began execution in | |
| less than 5 seconds. On a smaller slower machine (e.g., a small laptop | |
| with slow disks), this could take 30 seconds or longer).</p> | |
| <a href="img/quickstart/Fig2.png"><img | |
| src="img/quickstart/Fig2.png" style="width:800px"></a></center> | |
| </p> | |
| <p>Figure 3 | |
| <p>In Figure 3, we see the state of the simulation after about 55 iterations. In this case, | |
| the disease is spreading across common borders from starting in the north | |
| and moving south. | |
| <p> | |
| The "Simulation control" area in the lower left is used to "Start", "Pause", "Reset", | |
| "Step" and "Stop" all the active Simulations. | |
| <p> | |
| </p> | |
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