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.
The user must submit a model in AMPL
format. Examples are provided in
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';