Hi!
I have been using CPLEX for almost 30 years and this is the first time I get this behavior.
When I solve my MIP, I get this message:
Initializing dual steep norms . . .
and it stays stuck there for hours without doing anything else.
I have tried to modify the Markowitz tolerance , change the dual pricing, even modify my MIP in a way that I first solve with a big chunk of my constraints and add the capacity constraints afterwards, and nothing works.
Can you help me?
Thanks
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Serge Bisaillon