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Version 2.1, © 2019, 2020 Energy Simulation Solutions Ltd
In this quick start guide, we shall look at how you should prepare the jEPlus project and load it into jEPlus+EA for a sensitivity analysis run and exploring the results.
Let's start with getting and installing jEPlus+EA v2. The program is written in Java and distributed as a zip archive containing the main JAR file, the supporting files and an example project. You can download the distribution package from here:
Before launching jEPlus+EA v2, you may also need to:
run-jEPlus+EA.bat. Please note that double-clicking on jEPlus+EA.jar to start the program is NOT recommended.
Settings & Logstab to configure the local programs.
JESS Clientoption to log on to the service with your JESS account. Note that the JESS account is different from the ENSIMS web platform account. You only need to do this once and the access key will be stored in jEPlus+EA.
jEPlus+EA v2 is built for jEPlus projects. However, in order to make setting up parametric and optimisation analyses easier, you check the following things when preparing the project.
Once the jEPlus project is prepared and tested, starting a JEA project is straightforward.
Createbutton to upload the project definition and the jEPlus project files to the server. Beware that jEPlus+EA will upload the full contents of the folder containing the jEPlus project file, hence you should clean the folder and keep only the required files before submission.
Startbutton is enabled, we are ready to run it. Clicking on the
Startbutton, you will see the status of the project changes into “Initialising”, and the button changes to
Pause, which means the JEA platform has started the process of the first run of the project.
Simulation Managerarea. Choose running simulations locally or using the JESS simulation service. For small models such as the one in the example project, running them locally may be faster. Then, you need to tick the
Runcheckbox to allow jEPlus+EA to run simulations. This is necessary because the JEA platform allows multiple jEPlus+EA instances connecting to the same project, e.g. one in the office and one at home. It does not know which one would be running simulations, hence the decision is left to the user.
Scatter Plottab to see the results coming back.
Stopto terminate the current run, or
Resetto clear all the solutions in this run.
One of the advantages of jEPlus+EA and the JEA platform is that you can make on-going changes to many aspects of the project. You can change:
Once you have made the desired changes to the
Optimisation Problem and
Algorithm Settings, click on the
Update button to submit them. You will be given an option to state that the proposed changes should apply to the current run or for setting a future run.
jEPlus+EA v2 provides a number of new ways to highlight and select various groups of solutions using the
Scatter Plot tab.
Logging onto the https://app.ensims.com/jea_portal.html|JEA web portal, you will be able to use an additional set of visual analytic tools to process the solutions.
Sensitivitytab to see how the output metrics are impacted by the input parameters, using the matrix plot, multi-linear regression, and global SA reports.
Since all your project data are online, you can access them from anywhere, using a web browser or the jEPlus+EA v2 program. Using the
Project List tab in jEPlus+EA, you can:
Deleteor make a copy (
Clone) of a project