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List:       gnu-info
Subject:    glpk 4.33 release information
From:       Andrew Makhorin <mao () gnu ! org>
Date:       2008-10-30 12:47:51
Message-ID: 1314560250.20081030154751 () gnu ! org
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GLPK 4.33 -- Release Information
********************************

Release date: Oct 30, 2008

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 to the package:
        glp_copy_prob         copy problem object content
        glp_exact             solve LP in exact arithmetic
                              (makes lpx_exact deprecated)
        glp_get_unbnd_ray     determine variable causing unboundedness
                              (makes lpx_get_ray_info deprecated)
        glp_interior          solve LP with interior-point method
                              (makes lpx_interior deprecated)

        The following new API routines for processing models written in
        the GNU Mathprog language were added to the package:
        glp_mpl_alloc_wksp    allocate the translator workspace
        glp_mpl_read_model    read and translate model section
        glp_mpl_read_data     read and translate data section
        glp_mpl_generate      generate the model
        glp_mpl_build_prob    build LP/MIP instance from the model
        glp_mpl_postsolve     postsolve the model
        glp_mpl_free_wksp     deallocate the translator workspace
        (These routines make lpx_read_model deprecated.)

        For description of all these new API routines see the reference
        manual included in the distribution.

        A crude implementation of CPLEX-like interface to GLPK API was
        added to the package. Currently it allows using GLPK as a core
        LP solver for Concorde, a well known computer code for solving
        the symmetric TSP. For details see examples/cplex/README.

        Some bugs were fixed in the SQL table driver. Thanks to Xypron
        <xypron.glpk@gmx.de>.

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:

27f78f73700add359f8251e0cbbdcc62 *glpk-4.33.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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