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NEOS Interfaces to BARON

WWW Form & Sample Submissions


The NEOS Server offers BARON for the solution of mixed integer nonlinearly constrained optimization problems in AMPL format.

BARON is a computational system for solving nonconvex optimization problems to global optimality. Purely continuous, purely integer, and mixed-integer nonlinear problems can be solved with the software. The Branch and Reduce Optimization Navigator derives its name from its combining of constraint propagation, interval analysis, and duality in its reduce arsenal with enhanced branch and bound concepts as it winds its way through the hills and valleys of complex optimization problems in search of global solutions.

BARON is developed by Nick Sahinidis.

Using the NEOS Server for BARON

The user must submit a model in AMPL format to solve an optimization problem. The examples 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.

The commands file may include option settings for BARON. To specify solver options, add

option baron_options 'OPTIONS';
where OPTIONS is a list of one or more of the BARON options, which are listed at BARON Options for AMPL.

Web Submission Form
Model File
Enter the location of the AMPL model (local file)
Data File
Enter the location of the AMPL data file (local file)
Commands File
Enter the location of the AMPL commands file (local file)
Additional Settings
Dry run: generate job XML instead of submitting it to NEOS
Short Priority: submit to higher priority queue with maximum CPU time of 5 minutes
E-Mail address:
Please do not click the 'Submit to NEOS' button more than once.