PPL_LPSOL(1) User Commands PPL_LPSOL(1)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 4.38) 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 documen‐
tation is available at http://www.cs.unipr.it/ppl/ .
NOTES
The options -CSECS (--max-cpu=SECS) and -t (--timings) are not avail‐
able 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) 2010-2011 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 condi‐
tions. There is NO warranty; not even for MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE.
SEE ALSOppl-config(1)
Andrew Makhorin. GNU Linear Programming Kit: Reference Manual (Version
4.31).
ppl_lpsol 0.11.2 February 2011 PPL_LPSOL(1)