Originally posted by: Ebisa

I am a beginner to use the CPLEX tool. I would like to get help with the following questions:

1)
I want to solve an optimization problem in a distributed manner. In my problem I want to optimize an objective function for a neighborhood. To do so, I want each household to solve its part of the optimization problem in a distributed way by exchanging information with its peer households. I appreciate if some one can give me some ideas if i can do it with OPL using mp optimizer. Since I am a bigginer using this tool, I would even like if I can get sample codes.

2. I could not understand what the dual value of a constraint is. For instance, in the code below, what exactly does ctFill[i].dual represent? Can someone help me?

{
ctFill:
sum( p in Patterns )
p.fill[i] * Cut[p] >= Amount[i];
.
.
.

Duals[i] = ctFill[i].dual;
}

Cheers
#DecisionOptimization
#OPLusingCPLEXOptimizer

For constraints, the dual variable measures the rate of change in the objective as the right hand side of the constraint changes. For example, with a capacity constraint, the dual variable measures the improvement in the objective per unit of additional capacity.

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: Ebisa

Thanks Alex,
That was helpful.

Cheers,
Ebisa
#DecisionOptimization
#OPLusingCPLEXOptimizer