OK, for future reference I have found this site with many information about the options: http://www.coin-or.org/Ipopt/documentation/node39.html
I also provide a simple example of what one can use: # =============================================================== using JuMP using Ipopt """ Problem: Solve the Rosenbrock function """ # For more information see here: # https://jump.readthedocs.org/en/latest/installation.html#getting-solvers tic() # Information about Ipopt options here: # http://www.coin-or.org/Ipopt/documentation/node39.html m = Model(solver=IpoptSolver(tol = 1e-8, max_iter = 200, output_file = "results.txt")) @defVar(m, x1) @defVar(m, x2) @setNLObjective(m, Min, 100(x2-x1^2)^2 + (1-x1)^2) setValue(x1, -1.2) setValue(x2, 1) status = solve(m) println("got ", getObjectiveValue(m), " at ", [getValue(x1), getValue(x2)]) toc() # =============================================================== One last question that I have is whether we can use some kind of delimiter that can give us the result in a csv file, but not in one column, but rather in deifferent ones. Τη Κυριακή, 23 Νοεμβρίου 2014 3:10:34 μ.μ. UTC-5, ο χρήστης Pileas έγραψε: > > Hi, > > using JuMP we have a relatively easy way to solve for non-linear problems. > > Usually we have the following preamble: > > # -------------------------------------------------------------------- > using JuMP > using Ipopt # For any kind of constraints > > m = Model(solver=IpoptSolver()) > > ... > > # -------------------------------------------------------------------- > > In the above we can see that Ipopt is empty of options (I guess that it > uses the pre-sets), however what if someone wants to change the options. Is > there any list of options for Ipopt that works in Julia? >
