Re: [Boost-users] [MPI] request::test() crashes or returns garbage

Ok, figured it out. As I suspected, there was a mismatch, not with libraries but with the headers. Boost built correctly, but when I compiled my program it found headers from a different OpenMPI build and used those. Thanks for your assistance and sorry for the noise. Regards, /Patrik On Fri, Nov 18, 2011 at 11:26 AM, Riccardo Murri wrote:

Hi Patrik,

On Fri, Nov 18, 2011 at 16:30, Patrik Jonsson wrote:

...

Thanks for responding. I'm beginning to suspect this is because of some library mismatch, since the C version works correctly for me. Where does the build pick up the location of the MPI library?

The build process uses the mpic++/mpicxx/mpiCC compiler wrapper, which then inserts the correct "-I"/"-L" switches for the real C++ compiler.

The build process searches for "mpic++", "mpiCC" and "mpicxx" in this order; look into `tools/build/v2/tools/mpi.jam` for details.

If you want to force the use of a specific `mpic++`, you can append this line to the `user-config.jam` file:

   using mpi : /path/to/preferred/mpicxx ;

Best regards, Riccardo _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users