Re: [Help-glpk] GLPK MingW build files and PyGLPK

[Yingjie Lan]

Hi Luiz,

I don't use Gusek, not sure how to help with that, sorry. I have a question for 
you, thought you might know the answer: why the PyGLPK compiles with mingw but 
not with the MS visual studio C++ compiler? Is there anyway to fix this 
problem? Please drop me a line if you have a clue. Thanks!

Yingjie



--- On Thu, 11/5/09, Luiz Bettoni <address@hidden> wrote:

> From: Luiz Bettoni <address@hidden>
> Subject: [Help-glpk] GLPK MingW build files and PyGLPK
> To: "Andrew Makhorin" <address@hidden>
> Cc: "help-glpk" <address@hidden>
> Date: Thursday, November 5, 2009, 10:25 PM
> Hi, Andrew, xypron!
> 
> You do not intend to include MingW w32
> build files in GLPK package anymore?
> 
> On every GLPK launch i've patched them and
> sent to the list, but if no-one uses mingw
> to build GLPK (I'm alone? Ü), it's wast effort.
> 
> If MingW build files isn't util anymore, I'm
> planning replace Gusek glpsol binaries by
> winglpk pre-build ones.
> 
> 
> 
> Hi, all!
> 
> Noli has suggested patch Gusek to allow python
> editing (based ond SciTE original capabilities).
> I think that is a good idea, but I did'nt use PyGLPK
> and PyMathProg to test it. Someone interested?
> 
> 
> Thanks,
> Luiz
> 
> 
> Andrew Makhorin wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > GLPK 4.40 -- Release Information
> > ********************************
> >
> > Release date: Nov 03, 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_del_vertices     
> remove vertices from graph
> >     
>    glp_del_arc       
>    remove arc from graph
> >     
>    glp_wclique_exact 
>    find maximum weight clique with the exact
> >               
>            
>    algorithm developed by Prof. P. Ostergard
> >     
>    glp_read_ccdata   
>    read graph in DIMACS clique/coloring
> >               
>            
>    format
> >     
>    glp_write_ccdata      write
> graph in DIMACS clique/coloring
> >               
>            
>    format
> >
> >         For description
> of these new routines see a new edition of the
> >         reference manual
> included in the distribution.
> >
> >         The hybrid
> pseudocost branching heuristic was included in the
> >         MIP solver. It
> is available on API level (iocp.br_tech should
> >         be set to
> GLP_BR_PCH) and in the stand-alone solver glpsol
> >         (via the
> command-line option --pcost). This heuristic may be
> >         useful on
> solving hard MIP instances.
> >
> >         The branching
> heuristic by Driebeck and Tomlin (used in the
> >         MIP solver by
> default) was changed to switch to branching on
> >         most fractional
> variable if an lower bound of degradation of
> >         the objective is
> close to zero for all branching candidates.
> >
> >         A bug was fixed
> in the LP preprocessor (routine npp_empty_col).
> >         Thanks to Stefan
> Vigerske <address@hidden>
> for the
> >         bug report.
> >
> >         A bug was fixed
> and some improvements were made in the FPUMP
> >         heuristic
> module. Thanks to Xypron <address@hidden>.
> >
> >         A bug was fixed
> in the API routine glp_warm_up (dual
> >         feasibility test
> was incorrect in maximization case). Thanks to
> >         Uday Venkatadri
> <address@hidden>
> for the bug report.
> >
> > 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:
> >
> > 73821dae9c52905f012ce1b501f59b66 *glpk-4.40.tar.gz
> >
> > GLPK is also available as a Debian GNU/Linux package.
> See its web page
> > at <http://packages.debian.org/etch/glpk>.
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.2.1 (MingW32)
> >
> >
> iD8DBQFK8Czg0XvyMFmB6BgRAjWaAJ9mfLTKvulhbjDwbwNUK20HEOHuFwCgmgkL
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> > =OQJm
> > -----END PGP SIGNATURE-----
> >
> >   
> 
> 
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