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Subject: Re: [OMPI users] import/export issues on Windows
From: Shiqing Fan (fan_at_[hidden])
Date: 2010-04-15 07:28:23


Hi,

It seems Microsoft C++ compiler could recognize what the code wants to
do, while Intel C++ compiler couldn't. I know a solution for this kind
of problem, but it involves some code base changes, I need some time to
test it. At moment, if you want to use Intel C++ compiler, the dirty
solution is just changing "OMPI_DECLSPEC" in ompi/mpi/cxx/functions.h to
"__declspec(dllexport)". Or you could switch to use Microsoft compiler
only for this libmpi_cxx project.

Thanks,
Shiqing

On 2010-4-15 9:52 AM, Ben.Kuppers_at_[hidden] wrote:
>
> Hello,
>
> When I use 1.4.2rc1 I am able build in Visual Studio 2005 (CMake 2.6.4
> default settings VS2005 x64)but I get the following warning (among
> others):
>
> 11>..\..\..\..\..\ompi\mpi\cxx\intercepts.cc(81) : warning C4273:
> 'MPI::InitializeIntercepts' : inconsistent dll linkage
>
> 11> E:\source\openmpi-1.4.1\ompi/mpi/cxx/functions.h(64) : see
> previous definition of 'InitializeIntercepts'
>
> When I convert the Visual Studio projects to use the Intel 10.1
> compiler (required for our production environment) this warning
> becomes an error:
>
> 11>E:\source\openmpi-1.4.2rc1\ompi\mpi\cxx\intercepts.cc(80): error: a
> function declared "dllimport" may not be defined
>
> 11> MPI::InitializeIntercepts()
>
> This issue seems related to
> http://www.open-mpi.org/community/lists/users/2010/03/12392.php.
>
> It appears to me that you are trying to use a single symbol to import
> from the c module and export from cxx module at the same time.
>
> Any help would be appreciated,
>
> Ben
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users

-- 
--------------------------------------------------------------
Shiqing Fan                          http://www.hlrs.de/people/fan
High Performance Computing           Tel.: +49 711 685 87234
   Center Stuttgart (HLRS)            Fax.: +49 711 685 65832
Address:Allmandring 30               email: fan_at_[hidden]
70569 Stuttgart