Plot Runtime

[PhilippScheller]

1. Description Plot the runtime over iterations and highlight single iteration (split runtime in propose time, train time and total time)

2. Open topics

   • [x] expand plot with execution time in separate plot

[juliambr]

• [ ] "on the different tasks" - what does that mean?
• [x] "The vertical line marks a single iteration".
• [x] "Left plot: Shows the time spent executing the objective function f(x) that has been passed to the optimizer".
• [x] typo: "which proposes new points"
• [x] "Time spent by infill optimization to propose a new point, given the trained surrogate model"
• [x] "on the different task"
• [x] "If training ... takes too much time ... compared to the execution time, on can consider using another (more lean, better suited) surrogate, or another optimization technique.
• [x] "Surrogate model fitting gets very expensive if the surrogate model does not scale well with the number of data points used for fitting. " ....

[juliambr]

• [ ] Bitte log-Skalen für die x-Achse benutzen, s. zum Beispiel hier http://www.sthda.com/english/wiki/ggplot2-axis-scales-and-transformations