NEOS Interfaces to COPT

Sample Submissions
WWW Form - XML-RPC

COPT

The NEOS Server offers COPT Cardinal Optimizer for the solution of linear programming (LP) and mixed-integer linear programming (MILP). Acceptable input formats for COPT on the NEOS server include AMPL, GAMS, LP, MPS, and NL formats.

Details on COPT can be found on the COPT website.

Using the NEOS Server for COPT/AMPL


The user must submit a model in AMPL format. Examples are provided in the examples section of the AMPL website.

The problem must be specified in a model file. A data file and commands files may also be provided. If the commands file is specified, it must contain the AMPL solve command; however, it 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 the solver. To specify solver options, add 

  option copt_options 'OPTIONS';
where OPTIONS is a list of one or more of the available solver options for AMPL.

Web Submission Form
Model File
Enter the location of the AMPL model file (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)
Comments
Additional Settings


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