sci.op-research

Hi, All,

I'm using Java + cplex10.0 to solve my MIP problem. I want to use my
own heuristic in branch-and-bound. My heuristic uses sequential
rounding scheme, so it needs solving LP. In the heuristic callback, I
create another model (heurCplex), and use setVectors method to pass
the LP solution of the original model (orgCplex) to the variables of
model heurCplex ( it is successful). After I apply my heuristic, I try
using setVectors (also tried setSolution)method to pass the IP
solution of model heurCplex to the variables of model orgCplex, but it
is not successful. When I run the MIP, I found that cplex doen't use
my heuristic at all even my heuristic performs better. Do you know how
to pass the IP solution of the model heurCplex to the variables of the
original model?

Thanks,

Amy