EMPS
Expand a compressed MPS file.

EMPS is a FORTRAN90 program which can expand a compressed MPS file into standard form.

MPS files are a standard format for describing linear programming problems. They tend to be large and verbose, and so it is useful to compress them when they are not in use.

Usage:

emps file.mpsc file.mps: reads the information in file.mpsc and writes an uncompressed version into file.mps

Related Data and Programs:

EMPS is also available in a C++ version.

MPS is a dataset directory which contains examples of uncompressed MPS files.

MPSC is a dataset directory which contains examples of compressed MPS files.

Reference:

Irvin Lustig,
An Analysis of an Available Set of Linear Programming Test Problems,
Computers and Operations Research,
Volume 16, number 2, pages 173-184, 1989.
Bruce Murtagh,
Advanced Linear Programming: Computation and Practice,
McGraw-Hill, 1981.
The original source code for EMPS is available in the lp/data subdirectory of the NETLIB web site.

Source Code:

emps.f90, the source code.
emps.csh, commands to compile and load the source code.

List of Routines:

MAIN is the main program for EMPS.
BADCHK handles a checksum error.
COLOUT ???
EXFORM ?
EXINDX ???
EXPAND expands a compressed MPS file.
GET_UNIT returns a free FORTRAN unit number.
RDLINE reads a line of the input file.
STORE copies a 15 character string into a vector of 15 characters.
TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the FORTRAN90 source codes.