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NEOS Interfaces to XpressMP

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XpressMP

The NEOS Server offers FICO Xpress for the solution of mixed-integer linear programming (MILP) problems that can be modeled in AMPL format. To learn more about the FICO Xpress Optimization Suite, visit the FICO Optimization website.


Using the NEOS Server with FICO Xpress

The user must submit a model in AMPL format to solve an MILP. The examples section of the AMPL website provides examples of models in AMPL format.

The MILP 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, 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 FICO Xpress. To specify solver options, add

option xpress_options 'OPTIONS';
where OPTIONS is a list of one or more of the FICO Xpress options listed in Xpress Options for AMPL.

Note: An email address is required for any submissions to FICO Xpress solvers. This email address will be forwarded to FICO and may be used by FICO for promotional purposes. When using the XML-RPC interface, you must add the line <email>your.address@email.edu</email> to the XML file that is submitted to NEOS.


Enter the location of the AMPL model (local file)
Model File:


Enter the location of the AMPL data file (local file)
Data File:


Enter the location of the AMPL commands file (local file)
Commands File:


You may enter any additional comments here, for example, to identify the data for your own information. These comments will be returned with your results.
Comments:


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:

By submitting a job, you have accepted the Terms of Use
Please do not click the 'Submit to NEOS' button more than once.

Submit comments and questions Terms of Use