[Ipopt] MinGW problems

Mon Nov 29 15:59:35 EST 2010

Dear Hans,

This is curiously annoying. I also used gnumex 2.03, but did not get into
any of those library problems. I wonder if the problem is Matlab 2010b,
since I used 2009a, or if MinGW/MSys just works differently in WinXP than
Win7.

Anyway, I'm glad the compilation worked this time. Also, if its possible to
post the Ipopt mex files, also remember to attach the pthread library from
mingw. Otherwise, it won't work ;).

Cheers,
 Rodrigo

On Mon, Nov 29, 2010 at 3:53 PM, Hans Pirnay <hans.pirnay at rwth-aachen.de>wrote:

> Hi Rodrigo, Jens,
>
> thanks for all your help. I finally got it to work.
>
> I am on windows 7, but that doesn't really seem to change anything. The mex
> file I compiled on 7 works on XP just as well. Here's what I did:
>
> - got the current mingw + msys using the automated installer, installing
> everything but the objective c and ada compilers.
> - followed the steps on the website, configure using the same options as
> Rodrigo
>
> configure, make, make test, make install all worked flawlessly. The
> problems started with gnumex.
>
> 1. I am using Matlab 7.11, so I had to use the new gnumex 2.03 which fixes
> a bug in Matlab 7.11's mex.pl file
> 2. I changed the mexopts.bat file according to Rodrigo's suggestions. The
> problem I ran into was that all the .a libraries were not found, because the
> compiler only looked for .lib files. I got  around this problem by creating
> symbolic links of the form *.lib to all the necessary *.a files
>
> With these changes, it compiled without problems
>
> Since "ipopt matlab windows" seems to be a very popular google search term,
> I was wondering if there exist any copyright/legal objections against
> posting the compiled ipopt mex file (with MUMPS) and all the necessary files
> to run it somewhere online?
>
> Hans
>
> On Mon, Nov 29, 2010 at 2:40 AM, Rodrigo Lopez-Negrete <
> r.lopez.negrete at gmail.com> wrote:
>
>> Hi Hans and Jens,
>>
>> I just tried compiling the matlab interface again. I was able to do it
>> following *some* of my instructions on the Ipopt website. Here's what I did.
>>
>> I used a clean install of MinGW/Msys with the newest available installer
>> from the MinGW website (mingw-get-inst-20101030.exe). I'm using Windows XP
>> and the compilers that come with the MinGW download:
>>
>> $ gcc -v
>> Using built-in specs.
>> COLLECT_GCC=C:\MinGW\bin\gcc.exe
>>
>> COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.5.0/lto-wrapper.exe
>> Target: mingw32
>> Configured with: ../gcc-4.5.0/configure
>> --enable-languages=c,c++,ada,fortran,objc,obj-c++ --disable-sjlj-exceptions
>> --with-dwarf2 --enable-shared --enable-libgomp --disable-win32-registry
>> --enable-libstdcxx-debug --enable-version-specific-runtime-libs
>> --disable-werror --build=mingw32 --prefix=/mingw
>> Thread model: win32
>> gcc version 4.5.0 (GCC)
>>
>>
>> I configured Ipopt using
>>
>> $ ../configure -C --enable-doscompile --enable-static --disable-shared
>> ADD_CXXFLAGS="-fexceptions" ADD_CFLAGS="-fexceptions" ADD_FFLAGS="-fexceptions"
>>
>> Make the ipopt library. All tests passed for me.
>>
>> Then I generated the mexopts.bat file using gnumex. This file I copied to
>> the $IPOPT/build/Ipopt/contrib/MatlabInterface/src folder, and I modified it
>> as follows:
>>
>> set GM_MEXLANG=cxx
>> set GM_ADD_LIBS= -llibmx -llibmex -llibmat
>> -Lc:/MinGW/msys/uno/home/testnew/Ipopt/build/lib/coin
>> -Lc:/MinGW/msys/uno/home/testnew/Ipopt/build/lib/coin/ThirdParty -lipopt
>> -lcoinhsl -lcoinmetis -lcoinmumps -lcoinlapack -lcoinblas  -Lc:/MinGW/lib
>> -LC:/MinGW/lib  -Lc:/mingw/bin/../lib/gcc/mingw32/4.5.0
>> -Lc:/mingw/bin/../lib/gcc
>> -Lc:/mingw/bin/../lib/gcc/mingw32/4.5.0/../../../../mingw32/lib
>> -Lc:/mingw/bin/../lib/gcc/mingw32/4.5.0/../../.. -L/mingw/lib -lgfortran
>> -lmingw32 -lgcc_s -lmoldname -lmingwex -lmsvcrt -luser32 -lkernel32
>> -ladvapi32 -lshell32 -lpthread -lm
>> set COMPILER=g++
>>
>> The makefile I setup like this (as per my Matlab installation)
>>
>>    1. MATLAB_HOME = /c/PROGRA~1/MATLAB/R2009a/
>>    2. MEXSUFFIX = mexw32
>>    3. MEX = $(MATLAB_HOME)/sys/perl/win32/bin/perl.exe
>>    $(MATLAB_HOME)/bin/mex.pl
>>    4. remove the -cxx flag from MEXFLAGS
>>
>> When doing make for the Matlab interface it complains about not finding
>> the 'm' library, however it compiles and generates the ipopt.mexw32 file. I
>> tested it with the examples, and it worked.
>>
>> I hope this helps. If you try this and it works, let me know. I may update
>> the Ipopt website.
>>
>> Best,
>>   Rodrigo
>>
>> On Thu, Nov 25, 2010 at 4:01 AM, Jens Schubert <
>> jens.schubert.1 at googlemail.com> wrote:
>>
>>> Hi Hans,
>>>
>>> > I used tdm-gcc-4.3.2 as described in the compulation hints.
>>> I just checked the mingw home page. I found that the documentation was
>>> updated since I had read it last time. However, go to
>>> http://www.mingw.org/wiki/InstallationHOWTOforMinGW
>>> and scroll down to 'Manual Installations'. Follow all the instructions
>>> - this will need some time. I checked a few links, for me it looks
>>> like they point all to the gcc4.5 version. So here you will get all
>>> the necessary packages.
>>>
>>> Then, after you updated to the newest version of gcc, try to use it.
>>> In my gcc-version (4.5.0-1) the compiler did not yet work fully
>>> correctly, that is why one had to set the linker-option ( I found this
>>> in the release notes). [I just see that this version is the same as
>>> the version suggested on the mingw page.]
>>>
>>> >
>>> >> For me it works with gcc4.5.0 and using the linkeroption
>>> >> '--enable-runtime-pseudo-reloc-v2' durch '--enable-auto-import'.
>>> >
>>> > I'm not sure what exactly you mean - can you clarify where I need to
>>> > specify which of these options?
>>> Well, this depends on your environment. I work in the 'msys'-shell as
>>> suggested on the mingw home page. If gcc is called,
>>> (a) either directly by typing on the msys command-prompt,
>>> (b) or by a make-tool
>>> (c) or by some other program
>>> there is always a way to set the compiler options. In my case (b) I
>>> just put it as an option behind the gcc-comand in the makefile.
>>>
>>> > Can you tell me why you chose these
>>> > options?
>>> See above: I found it in the release notes.
>>> The (nearly) complete list of all options may be found in the gcc manual.
>>> http://gcc.gnu.org/onlinedocs/
>>> But the list is too long for just reading it, you need to use the list
>>> as reference for looking up unknown things.
>>>
>>>
>>> Good luck
>>> Jens Schubert
>>>
>>> >
>>> > Thanks for your help!
>>> >
>>> > Hans
>>> >
>>> >>
>>> >> Hope it helps
>>> >> Jens
>>> >>
>>> >>
>>> >> 2010/11/24 Hans Pirnay <hans.pirnay at rwth-aachen.de>:
>>> >>> Hi everyone,
>>> >>>
>>> >>> I am trying to compile Ipopt for Windows so I might finally be able
>>> to
>>> >>> use it for Matlab, but I ran into problems using Rodrigo's guide on
>>> >>> https://projects.coin-or.org/Ipopt/wiki/CompilationHints
>>> >>>
>>> >>> I set up a MinGW system, and successfully ran configure and make with
>>> >>> the same options Rodrigo used. However, any executables I create (all
>>> >>> examples, as well as running make test) compile fine, but fail at
>>> >>> runtime with the usual
>>> >>>
>>> >>> "hs071_cpp.exe has encountered a problem and needs to close. --- Send
>>> >>> Error Report / Don't Send" - window.
>>> >>>
>>> >>> I tried to compile a simple helloworld program just to check if any
>>> >>> code compiled on MinGW fails, but that worked fine.
>>> >>>
>>> >>> Has anyone encountered and overcome this problem before? Any help is
>>> >>> appreciated!
>>> >>>
>>> >>> thanks
>>> >>>
>>> >>> Hans
>>> >>>
>>> >>> _______________________________________________
>>> >>> Ipopt mailing list
>>> >>> Ipopt at list.coin-or.org
>>> >>> http://list.coin-or.org/mailman/listinfo/ipopt
>>> >>>
>>> >>
>>> >
>>>
>>> _______________________________________________
>>> Ipopt mailing list
>>> Ipopt at list.coin-or.org
>>> http://list.coin-or.org/mailman/listinfo/ipopt
>>>
>>
>>
>>
>> --
>>
>> *Rodrigo López-Negrete de la Fuente*
>> Doctoral Candidate
>> Email: rln at cmu.edu
>> WWW: http://rodrigo.lopez-negrete.org
>>
>> Department of Chemical Engineering
>> Carnegie Mellon University
>> 5000 Forbes Ave.
>> Pittsburgh, PA 15213-3890
>> USA
>>
>>
>

-- 

*Rodrigo López-Negrete de la Fuente*
Doctoral Candidate
Email: rln at cmu.edu
WWW: http://rodrigo.lopez-negrete.org

Department of Chemical Engineering
Carnegie Mellon University
5000 Forbes Ave.
Pittsburgh, PA 15213-3890
USA
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