...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::mpi::cartesian_dimensions
// In header: <boost/mpi/cartesian_communicator.hpp> std::vector< int > & cartesian_dimensions(int nb_proc, std::vector< int > & dims);