The NEOS Server offers the Gurobi
Optimizer for the solution of linear programming (LP) problems,
mixed-integer linear programming (MILP) problems, and second-order conic
programming (SOCP) problems. LPs and MILPs can be submitted
to Gurobi on the NEOS server in AMPL, GAMS, LP, or MPS format. SOCPs can be
submitted in AMPL, GAMS or NL format.
The Gurobi Optimizer is a state-of-the-art solver for mathematical
programming. The solvers in the Gurobi Optimizer were designed from
the ground up to exploit modern architectures and multi-core
processors. For more information on Gurobi products and services, see
the Gurobi 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 gurobi_options 'OPTIONS';