On Tue, 2011-03-01 at 16:31 +, Alan Zinober wrote:
We currently use AMPL and MINOS to run nonlinear programming problems.
But the free edition of AMPL does not handle large problems.
Is it possible to use GLPK or any other free package with a nonlinear
solver?
Alan
No,
as an additional
compiler option.
- Original Message -
From: Nigel Galloway
To: Leandro Zanotto
Cc: help-glpk@gnu.org
Subject: [Help-glpk] Re: GLPK Complilink Visual Studio C++ 2008
Date: Tue, 18 Jan 2011 16:22:09 +
There are three possibilities to compile GLPK using Visual
There are three possibilities to compile GLPK using Visual Studio. GLPK
is designed as a library of routines which can be used in another program
to solve systems of linear inequalities. These programs written by you
produce the .exe. The glpk examples directory contains a number of such
programs.
On Thu, 2011-01-13 at 15:41 +, Patrick Winrow wrote:
Good day,
I need help to download glpk for my mac, how do i do it?
Best regards,
Patrick
You can download the glpk distribution tarball and then build glpk in
a standard way (i.e. configure/make).
The GLPK distribution
Hello Leonardo,
I have no experience on setting up GLPK as a proper Visual C project.
May be somebody else on the list has.
GLPK comes with Makefiles that can be used from the console.
Unzip glpk-4.45.tar.gz.
Open a console windows (cmd.exe).
Depending on whether you are working on 32 or
(2000)
http://opus4web.zib.de/documents-zib/423/SC-99-31.pdf
Best regards
Xypron
Original-Nachricht
Datum: Wed, 10 Nov 2010 16:59:25 +0300
Betreff: [Help-glpk] Re: GLPK not shows a result
On Wed, 2010-11-10 at 12:59 +0100, Eduardo Sanjurjo wrote:
Hello,
I have
Hello Adriana
Regarding memory leakage.
You mentioned earlier you create a lot of easy GLPK
instances. Would that number in the thousands then?
And do you delete these GLPK instances when you've
finished with them? Or do you let them stack up in the
street instead? If so, that would be a
I'm using the GLPKMEX interface to GLPK for Matlab, and I think I've
isolated GLPK as the cause for my program to slowly use more and more
memory, leading me to believe that there's a memory leak issue going
on. I checked the code for GLPKMEX since it's only one file, and it
appears that all
To: Adriana Kovashka adri...@cs.utexas.edu
Subject: [Help-glpk] Re: GLPK memory leak?
Message-ID: 1288108851.2915.16.ca...@host
From:Andrew Makhorin m...@gnu.org
Date:Tue, 26 Oct 2010 20:00:51 +0400
To: help-glpk@gnu.org
Subject: [Help-glpk] RE: GLPK on 64 bit Linux
Message-ID: 7552712.20100825213...@gnu.org
From: Hammond, Paul paul.hamm...@morganstanley.com
Date:Wed, 25 Aug 2010 21:35:23 +0400
Hi,
You may recall some time back that I had issues with
numerical differences running GLPK-Java on 64 bit Linux that could not be
explained by simply a different floating point precision. Some months ago, I
believe I found an issue, and wanted to share it with everybody, sorry didn
#8217;t
);
}
jresult = (jdouble)result;
return jresult;
}
Best regards
Xypron
Original-Nachricht
Datum: Wed, 25 Aug 2010 21:35:23 +0400
Betreff: [Help-glpk] RE: GLPK on 64 bit Linux
Hi,
You may recall some time back that I had issues with
numerical differences running GLPK-Java
Hi Xypron,
GLPK Lab has been updated to use GLPK 4.44.
Thank you for making the distribution.
Just tried it under Wine. All works fine.
Andrew Makhorin
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Andrew and Xypron,
It works as well in Windows XP Home - Atom CPU 1.3Mhz netbook.
Noli
On 6/4/10, Andrew Makhorin m...@gnu.org wrote:
Hi Xypron,
GLPK Lab has been updated to use GLPK 4.44.
Thank you for making the distribution.
Just tried it under Wine. All works fine.
Andrew
I #8217;m including bug-glpk here as this is potentially a bug, but it
could be something we are doing wrong.
We are using GLPK with Java (glpk-java-1.0.5), but to date have been
using it in a 32 bit Linux environment and it #8217;s been fine (apart
from crashes which we put down to the fact
Yes you're right, a given input resource may be allocated
differently and is the case. But one thing that should remain constant
though is the totals, what I'm talking about is that the totals of the
allocations at the end of a given input do not equal that input.
By way of illustration,
Hi Andrew,
Thanks for replying.
Yes you're right, a given input resource may be allocated differently and is
the case. But one thing that should remain constant though is the totals, what
I'm talking about is that the totals of the allocations at the end of a given
input do not equal that
Andrew,
I did not write the original code here I'm debugging, but it's certainly
intended that there is a constraint that all the input must be allocated. I can
double check that this is the case.
In terms of presenting a test case, I'm quite new to GLPK, I'd have to read up
n the formats you
I did not write the original code here I'm debugging, but it's
certainly intended that there is a constraint that all the input must
be allocated. I can double check that this is the case.
In terms of presenting a test case, I'm quite new to GLPK, I'd have
to read up n the formats you have
, Andrew Makhorin
Subject: Re: Re: [Help-glpk] Re: GLPK MingW build files and PyGLPK
Date: Thu, 26 Nov 2009 08:47:00 -0300
Hi, Nigel, Andrew.
I've build glpsol.exe with MSYS and cygwin.
Besides it's useful, the binary file has more than double sized and
the solver looks like quite slower
Under cygwin gcc is run with default options '-g' (that includes
debugging info into the executable) and '-O2'. On my 32-bit windows
machine I build glpk using 'make CFLAGS=-O3', and the code is about
30% faster than the one built with MSVS 2010 'cl -O3'.
I've experienced some issues
I've build glpsol.exe with MSYS and cygwin.
Besides it's useful, the binary file has more than double sized and the
solver looks like quite slower.
Under cygwin gcc is run with default options '-g' (that includes
debugging info into the executable) and '-O2'. On my 32-bit windows
machine I
Thanks, Nigel!
I'll give it a try, can be an interesting alternative.
By the way, as I've said, now I think that will be a
good choice if Gusek adopt the winglpk binaries.
Thanks for share!
Luiz
Nigel Galloway wrote:
You should probably add the MSYS extensions to MingW, these include a make
I've grown used to GMPL,
I haven't used it myself, but the
modelling language Zimpl, which can be used with SCIP, appears to have
similarities with MathProg.
http://zimpl.zib.de/
Yes, I've checked it out. It's similar in concept , but has some differences
-I do not believe you get database connectivity with Zimpl
- Zimpl allowes you to model if-then-else relationships between
variable, dealing with the conditional variables under the hood,
whereas GLPK forces
Hello Yimeng,
This is a weird issue when glpkmex tries to call glpk on 64bit
machines. I have it working on my machine. You'll need to recompile
glpk with:
make clean
make CFLAGS+=-fPIC
make check
make install
note: if you are using the 'with-gmp' configuration argument, you'll
need to
Hello Mark,
May I recommend to Andrew or Xypron that at least -O2 is set on for the
VS2008 makefile?
thank you for your recommendations
Flag /O2 is described here
http://msdn.microsoft.com/en-us/library/8f8h5cxt.aspx
as a default setting for release builds.
Flag /GL is described here
Flag /O2 is described here
http://msdn.microsoft.com/en-us/library/8f8h5cxt.aspx
as a default setting for release builds.
To generate a fastest code msdn recommends to use /Ox option (it
includes /O2).
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Hi, Marc.
This topic make me test some models with distinct builds of GLPK:
http://lists.gnu.org/archive/html/help-glpk/2008-11/msg00026.html
In 2 good machines (AMD Athlon64 2.200MHz, 2Gb DDR-400 / Intel Core 2
Duo 2x 2133 MHz, 2Gb DDR2-667), just replacing the glpsol.exe (all
parameters still
Of Luiz M. M. Bettoni
Sent: Saturday, December 06, 2008 8:37 AM
To: help-glpk@gnu.org
Subject: RE: [Help-glpk] Re: glpk 4.34 release information
Hi, Marc.
This topic make me test some models with distinct builds of GLPK:
http://lists.gnu.org/archive/html/help-glpk/2008-11/msg00026.html
In 2 good
Hi, Marc.
I'm not an expert on the compilation flags, so please double check
what I'm trying to say in the following.
The CFLAGS set for VS2008 is: /I. /DHAVE_CONFIG_H /nologo /W3
I do not know what the corresponding settings are for MinGW.
I'm not an expert on various fields, so sorry by
-Original Message-
From: Luiz M. M. Bettoni [mailto:[EMAIL PROTECTED]
Sent: Saturday, December 06, 2008 10:55 AM
To: Meketon, Marc
Cc: help-glpk@gnu.org
Subject: Re: [Help-glpk] Re: glpk 4.34 release information
Hi, Marc.
I'm not an expert on the compilation flags, so please double check
Hello Luiz,
every GLPK release), but add a way to build GLPK directly from MinGW can
be very useful for newbies.
the only Windows build files for GLPK 4.34 that support ODBC
connectivity are
those for Visual Studio Express 2008 and the Windows SDK. Both can be
downloaded free of charge from
NigelzGLPK.swg is the file in the pdf document in the section The SWIG
Interface File. I've attached a copy.
Also I've attached a bug report I made to make it work. You will probably need
to make the same change.
Good Luck
Nigel Galloway
- Original Message -
From: Pierpaolo
I've found that GLPK is unable to read some .mps files that can be
read by
other software. see
http://www.sce.carleton.ca/faculty/chinneck/MPSreader/MPSobject.html
I've attached 2 of these files since they seem to cause different
errors
when GLPK reads them.
The error for 22433.mps
Hello all,
I am trying to install GLPK on Linux.
I unzip and untar everything into the glpk-4.9 folder. Within this folder, I
call the ./configure command which works fine. I do not have admin access
on this machine, so I just want to install in my local directory. I do this
by running
make
On Wed, 2006-12-13 at 09:11 -0500, Girish Rao wrote:
Hello all,
I am trying to install GLPK on Linux.
I unzip and untar everything into the glpk-4.9 folder. Within this
folder, I call the ./configure command which works fine. I do not
have admin access on this machine, so I just want to
I do not belong to the OR community. Anyway I need Linear Programming to
solve a problem. I start using glpk with diffilculty. At least I would
have expected that just adding a display statement in one of the simple
example file provided with glpk would entail no problem.
I just ran
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