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GLPK 4.64 Release Information
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Release date: December 02, 2017
GLPK (GNU Linear Programming Kit) is intended for solving large-scale
linear programming (LP), mixed integer linear programming (MIP), and
other related problems. It is a set of routines written in ANSI C89 and
organized as a callable library.
In this release:
The dual simplex solver routine was changed to perform more
aggressive perturbation to prevent dual degeneracy and avoid
stalling even if the current dual basic solution is strongly
feasible (mainly if the objective is zero). Thanks to David
Monniaux <david.monni...@univ-grenoble-alpes.fr> for bug report
and example model.
The exact simplex solver routine was changed to perform
terminal output according to the verbosity level (specified by
the control parameter smcp.msg_lev). Thanks to Jeroen Demeyer
<jdeme...@cage.ugent.be> for bug report.
A minor bug (related to MS Windows version) was fixed. Thanks
to Heinrich Schuchardt <xypron.g...@gmx.de> for bug report.
An example model (Graceful Tree Labeling Problem) in MathProg
was added. Thanks to Mike Appleby <m...@app.leby.org> for
contribution.
Three example models (Power plant LP scheduler, Neumann CA
grid emulator generator) in MathProg and one in Cplex LP format
were added. Thanks to Peter Naszvadi <v...@cs.elte.hu> for
contribution.
See GLPK web page at <http://www.gnu.org/software/glpk/glpk.html>.
GLPK distribution can be ftp'ed from <ftp://ftp.gnu.org/gnu/glpk/> or
from some mirror ftp sites; see <http://www.gnu.org/order/ftp.html>.
MD5 check-sum is the following:
71a99d744589570f3ee98a566f27ea49 *glpk-4.64.tar.gz
GLPK is also available as a Debian GNU/Linux package. See its web page
at <http://packages.debian.org/stable/math/glpk-utils>.
Precompiled GLPK binaries (lib, dll, exe) for 32- and 64-bit MS Windows
can be downloaded from <http://winglpk.sourceforge.net/>.
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