GLPK – GNU Project – Free Software Foundation (FSF)

GLPK – GNU Project – Free Software Foundation (FSF)

  • March 31, 2020

GLPK – GNU Project – Free Software Foundation (FSF)

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Introduction |
Downloading |
Documentation |
Mailing Lists/Newsgroups |
Request an Enhancement
| Report a Bug |

Introduction to GLPK

The GLPK (GNU Linear Programming Kit)
package is intended for solving large-scale linear programming (LP),
mixed integer programming (MIP), and other related problems. It is a set
of routines written in ANSI C and organized in the form of a callable

GLPK supports the GNU MathProg modeling language, which is a
subset of the AMPL language.

The GLPK package includes the following main components:

  • primal and dual simplex methods
  • primal-dual interior-point method
  • branch-and-cut method
  • translator for GNU MathProg
  • application program interface (API)
  • stand-alone LP/MIP solver

Downloading GLPK

The GLPK distribution tarball can be found on
[via http] and
[via FTP].
It can also be found on one of our FTP
; please use a mirror if possible.

To make sure that the GLPK distribution tarball you have downloaded
is intact you need to download the corresponding .sig file and run a
command like this:

gpg --verify glpk-4.32.tar.gz.sig

If that command fails because you do not have the required public key,
run the following command to import it:

gpg --keyserver --recv-keys 5981E818

and then re-run the previous command.


The GLPK documentation consists of the Reference Manual and the
description of the GNU MathProg modeling language. Both these documents
are included in the distribution (in LaTeX, DVI, and PostScript

Mailing Lists/Newsgroups

GLPK has two mailing lists:
[email protected]
and [email protected].

The main discussion list is
[email protected],
and is used to discuss all aspects of GLPK, including development and

There is a separate list used for reporting bugs,
[email protected]. For
details on submitting a bug report, please see the section
Report a Bug below.

Announcements about GLPK and most other GNU Software are made on
[email protected].

To subscribe to these or any GNU mailing lists, please send an empty
mail with a Subject: header line of just “subscribe” to the relevant
-request list. For example, to subscribe yourself to the main GLPK
discussion list, you would send mail to

[email protected]
with no body and a Subject:
header line of just “subscribe”. Another way to subscribe is to use the
mailing list interface; see



Currently there are no newsgroups dedicated to GLPK.

Request an Enhancement

If you would like any new feature to be included in future versions of
GLPK, please send a request to
[email protected].

Please remember that development of GLPK is a volunteer effort, and
you can also contribute to its development. For information about
contributing to the GNU Project, please read How to
help GNU

Report a Bug

If you think you have found a bug in GLPK, then please send as complete
a report as possible to
[email protected].


GLPK is currently being maintained by
[email protected],
[email protected].

Please send FSF & GNU inquiries to
[email protected].
There are also other ways to contact the FSF.

The GLPK package is part of the GNU project, released under the aegis
of GNU.

Copyright © 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
2009, 2010, 2011, 2012 Andrew Makhorin, Department for Applied
Informatics, Moscow Aviation Institute, Moscow, Russia. All rights

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.

Verbatim copying and distribution of this entire article are permitted
worldwide, without royalty, in any medium, provided this notice, and the
copyright notice, are preserved.

Updated: $Date: 2012/06/23 11:35:42 $

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