The MOSEK command line tool Version 7.0 (Revision 141)

Chapter 15
The OPF format
The Optimization Problem Format (OPF) is an alternative to LP and MPS files for specifying optimization
problems. It is row-oriented, inspired by the CPLEX LP format.
Apart from containing objective, constraints, bounds etc. it may contain complete or partial solutions,
comments and extra information relevant for solving the problem. It is designed to be easily read and
modified by hand and to be forward compatible with possible future extensions.
15.1 Intended use
The OPF file format is meant to replace several other files:
• The LP file format. Any problem that can be written as an LP file can be written as an OPF file
to; furthermore it naturally accommodates ranged constraints and variables as well as arbitrary
characters in names, fixed expressions in the objective, empty constraints, and conic constraints.
• Parameter files. It is possible to specify integer, double and string parameters along with the
problem (or in a separate OPF file).
• Solution files. It is possible to store a full or a partial solution in an OPF file and later reload it.
15.2 The file format
The format uses tags to structure data. A simple example with the basic sections may look like this:
[comment]
This is a comment. You may write almost anything here...
[/comment]
# This is a single-line comment.
[objective min ’myobj’]
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