The Progress Chart (MP models)

Analyzes the results of the solve process displayed as a chart in the IDE.

The diagram in the right part of the Statistics tab displays the solve process and results as a chart. The vertical axis of this chart is the value of the objective and the horizontal axis is time in seconds. The chart shown in the following screen capture is displayed after a pause in the solve process.

The shapes of the lines on the chart depend on exactly when you pause execution; the progress chart shown in the previous screen capture is just an example of a first pause.

The progress chart shows the variation of the best node and best integer values and highlights the integer values found during the search:

• The green line shows the evolution of the Best Integer value, that is, the best value of the objective found that is also an integer value.

• The red line shows the evolution of the best value of the remaining open nodes (not necessarily integer) when moving from one node to another. This gives a bound on the final solution.

• The yellow point indicates a node where an integer value has been found. These points generally correspond to the stars (asterisks) in the Engine Log. See also the Engine Log tab.

The values in the Value column are dynamic and are updated every second; they change to indicate how the algorithm is progressing. The values in the Statistic frame are static; they indicate the model characteristics.

Since one feasible solution has been found for scalableWarehouse.mod, this is listed in the Solutions tab.