OptQuest permutation problem

[dawid_dabal]

[ FlexSim 17.1.2 ]

permutation.fsmI have a problem with permutation using OptQuest - I suspect that Lower/Upper bounds don't work properly.

In this sample model I want to find permutation:

Each variable is a cell in GlobalTable1. My PFM is GlobalTable1.cell(1,1).value and I want to minimize this value (my PFM is the same as Variable 1).

Solutions generated by OptQuest are between 1 and 7 - but they should be between 2 and 8 (lower bound = 2, upper bound = 8)

Is this a bug?

[sam_stubbsYXX86]

@jordan.johnson

Are you familiar with this issue?

[JordanLJohnson · Accepted solution]

The lower and upper bounds for permutation variables are ignored by the Optimizer. As a workaround, you will need to write code that shifts the value in the table by 1:

var myValue = Table("GlobalTable1")[1][1] + 1;

This behavior is why the UI sets those values to N/A (or not applicable) when you change the variable type to permutation.