Originally posted by: Sung_Hwang

I am doing implementation of benders by using concert technology.

Extreme ray is required when sub problem is infeasible, so I first turned off presolver and changed to

dual simplex algorithm. I thought I can obtain extreme rays via getDuals(IloNumArray, IloRange).

But it is not working..

Please give me some advice regards to this problem

Thank you
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Originally posted by: SystemAdmin

You might find some help in this thread: https://www.ibm.com/developerworks/forums/thread.jspa?threadID=334475&tstart=30.

/Paul

Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different. (Goethe)
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