[Ipopt] Problems using the Linear Solver Loader on Windows 7

[Stefan Vigerske]

Hi,

this should only happen if the configure of Ipopt did not recognize that 
windows.h is available (or windows.h was not available). For a build 
with Visual Studio, this seems to be the default.
There isn't much one can do about this without rebuilding this Ipopt dll.

Stefan

On 08/28/2013 02:28 PM, Steimel, Jochen wrote:
> Dear all,
>
>
>
> after much experimenting i was able to build a reduced version of  the
> libhsl.dll file using Microsoft Visual Studio and the Intel Fortran
> Compiler. This file only contains the MA27 solver. If I copy this into
> the same folder as my Ipopt39.dll and try to run my program I get the
> following error message:
>
>
>
> *** IPOPT OUTPUT
>
>
>
> Exception of type: OPTION_INVALID in file
> "..\..\..\src\Algorithm\IpAlgBuilder.cpp" at line 319:
>
> Exception message: Selected linear solver MA27 not available.
>
> Tried to obtain MA27 from shared library "libhsl..dll", but the
> following error occured:
>
> loadLib error: Do not know how to handle shared libraries on this
> operating system
>
>
>
> EXIT: Invalid option encountered.
>
>
>
> I am not sure how to interpret this message. What good is a loader for
> if it does not know how to handle shared libraries? Has anybody
> encountered this problem running IPOPT on Windows?
>
>
>
> Info:
>
> My Version of IPOPT is 3.11.0 but I had to rename the dll File to be
> able to load it via the CSIPOPT wrapper provided by Anders Gustafson at
> Cureos. I have also set the PATH Environment variable to include the
> current working directory of my program, where all the DLLS are located.
>
>
>
> Regards
>
> Jochen
>
>
>
>
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