Silencing the output on Matlab when using ipopt solver

[Anjana Gayathri Arunachalam]

Hello!

I am using CasADi's Opti Stack with the ipopt solver on Matlab for a variety of optimisation and optimal control problems. The solver prints out a lot of information to the command window. I used the following commands to reduce the verbosity of the output, but I unable to silence it completely.

opti = casadi.Opti();
solver_options= struct;
solver_options.ipopt.print_level = 0;
solver_options.print_time =0;
solver_options.verbose = 0;
solver_options.ipopt.sb ='yes';

1) Is there any way to completely silence the solver?

2) If not, is there a way we could redirect the output information to a txt file instead?

Thank you.

Sincerely,

Anjana