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

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