PCx

The NEOS Server offers PCx for the solution of linear programs in AMPL format.

PCx is a primal-dual interior-point code for linear programming, developed at the Optimization Technology Center, a joint venture of Argonne National Laboratory and Northwestern University. Users may wish to consult the PCx User Guide, available from the PCx home page.

The authors of PCx are:

Joe Czyzyk, Argonne and Poland;
Sanjay Mehrotra, Northwestern;
Michael Wagner, Old Dominion;
Stephen Wright, Wisconsin.

Using the NEOS Server for PCx

The user must submit a model in AMPL format to solve a linear program. Examples of models in AMPL format can be found in the netlib collection.

The model is specified by a model file, and optionally, a data file and a commands file. If the command file is specified it must contain the AMPL solve command.

The commands file can contain any AMPL command or set options for PCx by modifying the variable 'pcx_options'. See the PCx home page to get a listing of the various options. Printing directed to standard out is returned to the user with the output.
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:

Comments:

Put in priority queue

e-mail address:

Please do not click the 'Submit to NEOS' button more than once.

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