The NEOS Server offers Couenne for the solution of
global optimization problems in AMPL
format. Couenne solves global optimization problems using a reformulation-based
branch-and-bound algorithm for a globally optimum solution.
Additional details and options are available in the
Couenne user's manual.
Couenne is developed and maintained by Pietro Belotti and others. Visit the
Couenne page at COIN-OR
for more details.
Using the NEOS Server with Couenne
The user must submit a model in AMPL
format to solve a global optimization problem.
section of the AMPL website provides examples of models in AMPL format.
The problem must be specified by a model file with the
options of a data file and a commands file. If the commands file is
specified, it must contain the AMPL solve command.
However, the commands file must not contain the model
or data commands. The model and data files are renamed
internally by NEOS. Options are specified in a file with one option per line with the format of the name of the option followed by a space and the value.