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GLPK 4.61 Release Information
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Release date: January 22, 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:
An option was added to build a re-entrant version of the
package suitable for running in a multi-threaded environment.
This option is enabled by default on configuring the package
if the compiler used supports the thread local storage class
specifier (e.g. _Thread_local or __thread). Thanks to
David Monniaux <david.monni...@imag.fr> for suggestion and
Chris Matrakidis <cmatr...@gmail.com> for configure.ac patch.
A re-entrant version of the package allows running multiple
independent instances of glpk in different threads of a multi-
threaded application. Note that glpk is not thread-safe by
design, so if the application calls glpk routines from multiple
threads, no thread may access glpk program objects (glp_prob,
glp_tree, etc.) created by other threads; besides, each thread
before termination should call the API routine glp_free_env to
prevent memory leak.
A DLL support was added. Thanks to Heinrich Schuchardt
<xypron.g...@gmx.de> for contribution.
Some changes were made to allow compiling the package using
stdcall calling convention (this is needed only for compiling
GLPK with MSVC to run under MS Windows).
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:
3ce3e224a8b6e75a1a0b378445830f21 *glpk-4.61.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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