GLPK 4.41 released
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 <firstname.lastname@example.org>.
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).
Scripts to build GLPK with Microsoft Visual Studio 2010 for
both 32-bit and 64-bit Windows were included. Thanks to Xypron
<email@example.com> for contribution and testing.
See GLPK web page at <http://www.gnu.org/software/glpk/glpk.html>.
UPDATE (01.01.2010): New version of GUSEK is also available:
I’ve updated the Gusek project on SourceForge:
Release 0.2.8 changes:
– GLPK updated to 4.41.
– Added Java files support (as in native SciTE).
– Added gnuplot files support (testing – thanks to Noli Sicad).
Gusek provide an open source LP/MILP IDE for Win32,
packing a custom version of the SciTE editor linked to the
GLPK standalone solver (glpsol.exe).
Best Regards (and happy new year!),