Changing the starting point for an existing model without reconstructing it

Question

I've looked through JuMP's documentation, but did not find it there:

How can I modify just a starting point for variables of an existing model?

Answer 1

You can use

setvalue(x[i],1.0)

to give a starting point for the variable x[i] which will be passed to the solver on the next solve() call. This can be done at any time.