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GLPK 4.41 -- Release Information
********************************
Release date: Dec 21, 2009
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 C and
organized as a callable library.
In this release:
The following new API routines were added:
glp_transform_row transform explicitly specified row
glp_transform_col transform explicitly specified column
glp_prim_rtest perform primal ratio test
glp_dual_rtest perform dual ratio test
For description of these new routines see a new edition of the
reference manual included in the distribution.
The following API routines are deprecated: lpx_transform_row,
lpx_transform_col, lpx_prim_ratio_test, lpx_dual_ratio_test.
Some improvements were made in the MIP solver (glp_intopt).
The SQL table driver used to read/write data in MathProg models
was changed to allow multiple arguments separated by semicolon
in SQL statements. Thanks to Xypron <xypron.g...@gmx.de>.
Two new options were added to the glpsol stand-alone solver:
--seed value (to initialize the pseudo-random number generator
used in MathProg models with specified value), and
--ini filename (to use a basis previously saved with -w option
as an initial basis on solving similar LP's).
Two new MathProg example models were included. Thanks to
Nigel Galloway <nigel_gallo...@operamail.com> and Noli Sicad
<nsi...@gmail.com> for contribution.
Scripts to build GLPK with Microsoft Visual Studio 2010 for
both 32-bit and 64-bit Windows were included. Thanks to Xypron
<xypron.g...@gmx.de> for contribution and testing.
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:
55026a855035d0caf550db69d29d4959 *glpk-4.41.tar.gz
GLPK is also available as a Debian GNU/Linux package. See its web page
at <http://packages.debian.org/etch/glpk>.
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