NAME

ppl_lpsol - a PPL-based mixed integer programming problem solver

SYNOPSIS

ppl_lpsol [OPTION]... [FILE]

DESCRIPTION

Reads a file in MPS format and attempts solution using the optimization algorithms provided by the PPL.

See the GNU Linear Programming Kit: Reference Manual (Version 4.31) for information on the MPS format.

OPTIONS

-c, --check[=THRESHOLD] checks the obtained results using GLPK;: optima are checked with a tolerance of THRESHOLD (default 1e-09); input data are also perturbed the same way as GLPK does
-i, --incremental: solves the problem incrementally
-m, --min: minimizes the objective function
-M, --max: maximizes the objective function (default)
-n, --no-optimization: checks for satisfiability only
-r, --no-mip: consider integer variables as real variables
-CSECS, --max-cpu=SECS: limits CPU usage to SECS seconds
-RMB, --max-memory=MB: limits memory usage to MB megabytes
-h, --help: prints this help text to stdout
-oPATH, --output=PATH: appends output to PATH
-e, --enumerate: use the (expensive!) enumeration method
-pM, --pricing=M: use pricing method M for simplex (assumes -s); M is an int from 0 to 2, default 0: 0 --> steepest-edge using floating point 1 --> steepest-edge using exact arithmetic 2 --> textbook
-s, --simplex: use the simplex method
-t, --timings: prints timings to stderr
-v, --verbosity=LEVEL: sets verbosity level (from 0 to 4, default 3): 0 --> quiet: no output except for errors and

explicitly required notifications

1 --> solver state only 2 --> state + optimal value 3 --> state + optimal value + optimum location 4 --> lots of output

-V, --version: prints version information to stdout

AVAILABILITY

The latest version of the Parma Polyhedra Library and all the documentation is available at http://bugseng.com/products/ppl/ .

NOTES

The options -CSECS (--max-cpu=SECS) and -t (--timings) are not available on some platforms.

AUTHOR

See the file CREDITS in the source distribution or use the command ppl-config --credits for a list of contributors.

COPYRIGHT

Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it> Copyright (C) 2010-2016 BUGSENG srl (http://bugseng.com)
This is free software; see the file COPYING in the source distribution or use the command ppl-config --copying to obtain the copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.