The Load Time Series feature is optional. It is designed to allow the user to easily optimise a Source scenario with a range of different time series inputs. This behaviour can also be achieved by loading a directory into Insight (via Load Projects) that contains multiple Source project files in sub-directories. However, if the only difference between the Source projects is the time-series data sources, then the Load Time Series option saves the user from needing to create multiple copies of the project file.
To use the Load Time Series option, the Time Series Data Sources in the eWater Source scenario should be configured as described below (these requirements only apply to time series that will be changed):
The "Master Directory" directory containing the project file and time series (possibly in sub-directories) should be loaded as normal via the Load Projects menu item.
In addition, the user should create a separate "Time Series Directory" containing the time series that will be changed for each run:
Time series files that are not changed (i.e. are the same as in the Master Directory) do not have to be placed in the Run Directories
Click Browse to select the directory containing the time series inputs.
The Generations and Populations fields set the number of generations and the population size of each generation for the NSGA-II algorithm, respectively. These parameters define how many simulation runs are performed by the optimiser. The required values will depend on the complexity of the optimisation project. If the number of runs is too small, the optimiser will not be given sufficient time to search for the multi-objective optimal set of results. The population size also sets the maximum number of points on the Pareto front or surface;
Advanced users can optionally configure additional NSGA-II algorithm parameters via the Advanced Options sub-menu.
The user can choose to run the optimisation locally or across server endpoints by enabling the respective radio buttons.
Once the configuration is complete (including Configuring Expressions) the Run and Show Results buttons run the optimisation and visualise results, respectively. See Running an optimisation and viewing results.
|Note: The difference between objectives and tracked variables are that the former are optimised, whereas the latter are not. Tracked variables are a set of secondary objectives that may affect decision-making, but do not get optimised within Insight.|
Save your settings using File » Save Settings. This creates a settings file, which can be re-loaded into Insight.