[Help-glpk] Obtain the variables values in a GLPK 4.8 Java Interface

Hello, I am currently using GLPK with the Java interface developped and made available in the following website: http://bjoern.dapnet.de/glpk/ When I solve a LP and I want to retrieve the values of the solution (using getColPrim() and getColDual(), for example), these values (they are of type

[Help-glpk] Re: Help-glpk Digest, Vol 77, Issue 8

The problem is that I am using GLPK on Linux, and I need a .so file rather than .dll. Sylvain Date: Tue, 07 Apr 2009 17:07:07 +0200 From: Denis Debarbieux denis.debarbi...@ateji.com Subject: RE : [Help-glpk] Obtain the variables values in a GLPK 4.8 JavaInterface To:

[Help-glpk] GLPK 4.38 for Java under Linux

.) If you want more information, feel free to ask! Sylvain Fournier Date: Sat, 2 May 2009 16:32:01 +0300 From: Andrew Makhorin m...@gnu.org Subject: [Help-glpk] glpk 4.38 release information To: help-glpk@gnu.org Message-ID: 1566961953.20090502163...@gnu.org Content-Type: text/plain; charset=us

Re: [Help-glpk] GLPK 4.38 for Java under Linux

2009/5/23 Andrew Makhorin m...@gnu.org Lpx_warm_up will be replaced by glp_warm_up, which will provide the same functionality. Thanks for the quick and detailed answer. I will keep using the warm up functionality, because I don´t really have an idea of which variable(s) should enter the

Re: [Help-glpk] GLPK 4.38 for Java under Linux

: 23686380.p...@talk.nabble.com Content-Type: text/plain; charset=us-ascii Hello Sylvain, Sylvain Fournier wrote: I then saw that there is a glpk_4_38_java library available ( http://winglpk.sourceforge.net/), I tried it on Windows and it seems to work fine. But there is a problem

[Help-glpk] Re: Help-glpk Digest, Vol 78, Issue 31

Subject: [Help-glpk] Compiling GLPK for Java under Linux To: Help-glpk@gnu.org Message-ID: 23804217.p...@talk.nabble.com Content-Type: text/plain; charset=us-ascii Hello Sylvain Sylvain Fournier wrote: I then saw that there is a glpk_4_38_java library available ( http

[Help-glpk] RE: Feature request - option to flush output

Extending the subject, is it possible with GLPK to redirect this output to a file instead of stdout? Date: Mon, 14 Sep 2009 19:47:20 +0400 From: Hart, William E weh...@sandia.gov Subject: RE: [Help-glpk] Feature request - option to flush output To: help-glpk@gnu.org Message-ID:

Re: [Help-glpk] RE: Feature request - option to flush output

, Sylvain Fournier wrote: Extending the subject, is it possible with GLPK to redirect this output to a file instead of stdout? glpsol file.txt -- Michael henne...@web.cs.ndsu.nodak.edu Pessimist: The glass is half empty. Optimist: The glass is half full. Engineer: The glass

[Help-glpk] Application crash due to assert in GLPK

in order to treat it appropriately? Thanks, Sylvain Fournier ___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk

Re: [Help-glpk] Thread safety of GLPK

do I have to initialize the environment thread pointer? Sylvain Fournier Date: Thu, 15 Apr 2010 14:06:15 +0400 From: Andrew Makhorin m...@gnu.org Subject: Re: [Help-glpk] Thread safety of GLPK To: Hammond, Paul paul.hamm...@morganstanley.com Cc: help-glpk@gnu.org Message-ID

[Help-glpk] Deleting active constraints

: when I solve the LP again, the first solution (at iteration 0) has a lower objective (all right) but the value of the infeasibility increases. How is it possible that the infeasibility increases although I removed a constraint? I am (still) using the GLPK version 4.38. Best regards, Sylvain

[Help-glpk] Building a graph on the fly

archives, or in the files included in the GLPK distribution (examples and documentation). Did I miss something? Cheers, -- *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa

Re: [Help-glpk] [Fwd: Re: Building a graph on the fly]

the wrapper, which probably is needed for Java. -- Nigel Galloway nigel_gallo...@operamail.com On Tue, Apr 17, 2012, at 06:18 PM, Andrew Makhorin wrote: Forwarded Message From: Sylvain Fournier sylv...@wplex.com.br To: Andrew Makhorin m...@gnu.org Subject: Re: [Help-glpk

Re: [Help-glpk] Building a graph on the fly

/?ac=OM.PW.PW003K20328T7073a -- *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239-2400 wplex.com.br [image: WPLEX

Re: [Help-glpk] GLPK for Windows 4.49, GLPK for Java 1.0.25

for this feature in version 4.47. I look forward to testing the new minimum cost flow algorithm! Cheers, -- *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239

Re: [Help-glpk] GLPK for Windows 4.49, GLPK for Java 1.0.25

Ok, but then how do I get a glp_arc from a SWIGTYPE_p_glp_arc and vice-versa? (same question for glp_graph) Is there some routine like doubleArray_getitem() or intArray_getitem()? In the MinimumCostFlow.java example, there is no glp_graph or glp_arc object. Thanks, -- *Sylvain Fournier* Analista

Re: [Help-glpk] GLPK for Windows 4.49, GLPK for Java 1.0.25

Thanks Heinrich, I'll wait for the Swig fix. -- *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239-2400 wplex.com.br [image: WPLEX] 2013/4

Re: [Help-glpk] Gplk and exception handling

you tell me since which version? Thanks! *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239-2400 wplex.com.br [image: WPLEX] 2014-03-10 14:29

Re: [Help-glpk] Gplk and exception handling

threads (GmplSwing). Why is it necessary in this case and not in the other examples? *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239-2400

Re: [Help-glpk] Gplk and exception handling

Hello Heinrich, Thanks for the explanations. Best regards, *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239-2400 wplex.com.br [image: WPLEX

[Help-glpk] Suggestions to solve the master problem faster in a Branch-and-Price model.

(3) *224500: obj = 8.625357631e+04 infeas = 1.348e-14 (3) *225000: obj = 8.625218764e+04 infeas = 1.569e-14 (3) *225500: obj = 8.624515500e+04 infeas = 1.173e-14 (3) *225775: obj = 8.624472901e+04 infeas = 1.272e-14 (3) OPTIMAL SOLUTION FOUND --- Regards, *Sylvain Fournier

Re: [Help-glpk] Suggestions to solve the master problem faster in a Branch-and-Price model.

, wouldn't it?) *Sylvain Fournier* Analista de Pesquisa Operacional *48 3239-2423* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de Lisboa, Florianópolis SC +55 48 3239-2400 wplex.com.br [image: WPLEX] 2014-03-22 4:23 GMT-03:00 Andrew Makhorin m

Re: [Help-glpk] GLPK for Windows 4.57, GLPK for Java 1.3.0, and GLPK for C#/CLI 1.1.0 released

Did I miss something, such as a compilation parameter that would help me? If not, wouldn't it possible to add (also for Linux) this System.loadLibrary("glpk") before the System.loadLibrary("glpk_java") in glpk.i? I am not sure I was very clear... But I hope you understood anyway! Reg

Re: [Help-glpk] GLPK for Windows 4.57, GLPK for Java 1.3.0, and GLPK for C#/CLI 1.1.0 released

It seems to work fine with this option. Thanks Heinrich! *Sylvain Fournier* 2015-12-03 15:16 GMT-02:00 Heinrich Schuchardt <xypron.g...@gmx.de>: > Hello Sylvain, > > ./configure --help > > proposes: > > --enable-libpathload GLPK lib

Re: [Help-glpk] GLPK for Windows 4.57, GLPK for Java 1.3.0, and GLPK for C#/CLI 1.1.0 released

e to update GLPK, but then I'd like to understand why the libraries are given for Windows and not for Linux. Regards, *Sylvain Fournier* 2015-11-08 23:27 GMT-02:00 Heinrich Schuchardt <xypron.g...@gmx.de>: > GLPK for Windows 4.57 has been released. It provides 32 and 64 bit > bi

Re: [Help-glpk] GLPK for Windows 4.57, GLPK for Java 1.3.0, and GLPK for C#/CLI 1.1.0 released

Thanks Heinrich! http://sourceforge.net/projects/winglpk/ still contains the old libraries, right? I'll test it after the next update and let you know if there is any problem. And what about providing the Linux libraries in the next releases? *Sylvain Fournier* 2015-11-30 18:54 GMT-02:00

Re: [Help-glpk] multi-knapsack?

Hi Bjørnar, You may find some ideas from the number partitioning problem: https://en.wikipedia.org/wiki/Partition_problem Regards, *Sylvain Fournier* On 26 May 2017 at 01:25, Andrew Makhorin <m...@gnu.org> wrote: > On Thu, 2017-05-25 at 13:54 +0200, Bjørnar Ness wrote: > &

Re: [Help-glpk] glpk 4.50 release information

Hi Andrew, How is the attempt to solving the bug I reported? I recently downloaded the newest version of GLPK (4.65) and it is still crashing. If it was not solved yet, could you please provide me with the fix you had sent at that time? Thanks! *Sylvain Fournier* Gerente de Pesquisa Operacional

Re: [Help-glpk] glpk 4.50 release information

Hi, Are there some new thoughts about the issue? I don't think this email was answered after it was sent a few months ago. Regards, *Sylvain Fournier* Operations Research Manager *48 3239-2428* WPLEX Software Ltda. Rod SC 401 no. 8600 Corporate Park bloco 5 sala 101 88050-000 Santo Antônio de