Originally posted by: Falcon_G

Hi everyone

I am currently solving my problem like this:  solve with emphasis on feasibility; once a feasible found stop; restart with emphasis on bound.

I wonder if there are possibilities to change the emphasis within the callbacks or any other trick?

This is because, in my branch-and-cut, I cannot easily find a feasible solution for my problem. but once found I have local search to improve it.

Thanks in advance.

AFAIK you cannot change parameters mid-solve. However, if you stop the solver, change parameters (but do not change anything in the model itself), then invoke solve() again, CPLEX picks up where it left off (using the same partial search tree in effect when it stopped).