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<p class="MsoNormal"><span style="color:#1F497D">Tony,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks for the quick response and pointer to the cause of my error.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I was running with the older ipopt 3.9.2 dll from the download site, which also had this error - I'll try some different ones just to be sure, although I think that 3.9.2 was the minimum version for pyipopt.
I have only used the binary download dlls so far, so not sure if pyipopt requires VS or MinGW built dll.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I guess the ideal is building my own dlls locally, so I have been trying to get a dll build from the source code myself under MinGW but not quite got there (was about to post another question to the list to ask
about that one!). <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Unfortunately I don't have access to dropbox from work, so I've not tried your builds. I do have libgcc, libgfortran etc from MinGW installation if that is OK to run your opensuse builds?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Guy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-GB"> Tony Kelman [mailto:kelman@berkeley.edu]
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<b>Sent:</b> 01 September 2014 18:34<br>
<b>To:</b> Guy Charles; ipopt@list.coin-or.org<br>
<b>Subject:</b> Re: [Ipopt] Using HSL 2013 with pyipopt python module?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB">Guy,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB">It’s probably an Ipopt compilation issue with the binaries you downloaded. The error “Do not know how to handle shared libraries on this operating system” comes from
this line <a href="https://projects.coin-or.org/Ipopt/browser/releases/3.11.0/Ipopt/src/contrib/LinearSolverLoader/LibraryHandler.c#L34" title="https://projects.coin-or.org/Ipopt/browser/releases/3.11.0/Ipopt/src/contrib/LinearSolverLoader/LibraryHandler.c#L34">
https://projects.coin-or.org/Ipopt/browser/releases/3.11.0/Ipopt/src/contrib/LinearSolverLoader/LibraryHandler.c#L34</a> because the define ERROR_LOADLIB was set here -
<a href="https://projects.coin-or.org/Ipopt/browser/releases/3.11.0/Ipopt/src/contrib/LinearSolverLoader/LibraryHandler.h#L29" title="https://projects.coin-or.org/Ipopt/browser/releases/3.11.0/Ipopt/src/contrib/LinearSolverLoader/LibraryHandler.h#L29">
https://projects.coin-or.org/Ipopt/browser/releases/3.11.0/Ipopt/src/contrib/LinearSolverLoader/LibraryHandler.h#L29</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB">Apparently neither of HAVE_WINDOWS_H and HAVE_DLFCN_H were defined when the Ipopt library you’re using was compiled. You’ll need a different one. There are some older
downloads at <a href="http://www.coin-or.org/download/binary/" title="http://www.coin-or.org/download/binary/">
http://www.coin-or.org/download/binary/</a> and I have some MinGW DLL’s I made last year that may work for you, try
<a href="https://dl.dropboxusercontent.com/u/8244638/bonmin_win32.zip" title="https://dl.dropboxusercontent.com/u/8244638/bonmin_win32.zip">
https://dl.dropboxusercontent.com/u/8244638/bonmin_win32.zip</a> or <a href="https://dl.dropboxusercontent.com/u/8244638/bonmin_win64.zip" title="https://dl.dropboxusercontent.com/u/8244638/bonmin_win64.zip">
https://dl.dropboxusercontent.com/u/8244638/bonmin_win64.zip</a> (includes Ipopt, Cbc, and Bonmin). I haven’t tested these with Python. Do you (or anybody else on the list) know whether pyipopt requires a Visual Studio-compiled Ipopt DLL, or if it can also
work with a MinGW DLL?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB">I also just built a set of cross-compiled binaries on the opensuse build service, I can give you links to those but they’re done as separate packages for ASL, Lapack,
Mumps, Ipopt, and you need to get libgcc, libgfortran etc. There’s a package in Julia that automates this, which you might be interested in trying out.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB">-Tony<o:p></o:p></span></p>
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