[Ipopt] Access violation using Ipopt Win32 DLL

Spacecookies spacecookies1 at hotmail.com
Thu Dec 23 01:40:08 EST 2010

Thanks for the suggestion, Olaf. I just gave that DLL a try, but I'm getting 
the same access violation.

I also tried building the example that comes in that pardiso distribution, 
using the included Visual Studio project files (hs071_VisualStudio folder). 
Once again I'm getting the access violation on line 40, where the Ipopt 
options are set.

The console says:
Tried to set Option: |'$

At this point I would wonder if it's just something wrong with my machine, 
but I've also tried it on my laptop with the same result.

Any other thoughts?  Maybe I should take this as a sign and start using 
Linux :)

-----Original Message----- 
From: Olaf.Schenk at unibas.ch
Sent: Wednesday, December 22, 2010 9:50 PM
To: Spacecookies
Subject: Re: [Ipopt] Access violation using Ipopt Win32 DLL

Try the precomplied libs at


Quoting Spacecookies <spacecookies1 at hotmail.com>:

> Hi all,
> So I?ve been trying to use the precompiled Ipopt 3.9.1 Win32 DLL  without 
> much success. I?ve built a simple test case for it using the  hs071_cpp 
> example. I always get an access violation error on line 40  of 
> hs071_main.cpp where app->Options()->setNumericValue(...) is  called. The 
> same thing happens in both Debug and Release builds  (using the respective 
> Debug and Release versions of the Ipopt DLL).
> I?ve uploaded the Visual Studio 2010 project here if anyone wants to  take 
> a look:
> http://www.mediafire.com/file/3dshj63kftzta83/ipopt_msvc_test.zip
> There?s not much to it. I just got the precompiled Win32 binaries  from 
> here...
> http://www.coin-or.org/download/binary/Ipopt/Ipopt-3.9.1-win32-win64-dll.7z
> added the 2 missing header files (configall_system.h and 
> configall_system_msc.h) from the source...
> http://www.coin-or.org/download/source/Ipopt/Ipopt-3.9.1.zip
> added the 3 source files from Ipopt-3.9.1\Ipopt\examples\hs071_cpp  to a 
> blank Visual Studio 2010 project, and built it (on Windows 7  32-bit). I 
> don?t really see where I could have gone wrong... but I?d  sure like to 
> know. Has anyone else successfully used these DLLs?
> Thanks for any help,
> Spacecookies

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