| // Copyright (C) 2007 Trustees of Indiana University |
| |
| // Authors: Douglas Gregor |
| // Andrew Lumsdaine |
| |
| // Use, modification and distribution is subject to the Boost Software |
| // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| #include <boost/mpi/intercommunicator.hpp> |
| #include <boost/mpi/environment.hpp> |
| #include <boost/mpi/group.hpp> |
| |
| namespace boost { namespace mpi { |
| |
| intercommunicator::intercommunicator(const communicator& local, |
| int local_leader, |
| const communicator& peer, |
| int remote_leader) |
| { |
| MPI_Comm comm; |
| BOOST_MPI_CHECK_RESULT(MPI_Intercomm_create, |
| ((MPI_Comm)local, local_leader, |
| (MPI_Comm)peer, remote_leader, |
| environment::collectives_tag(), &comm)); |
| comm_ptr.reset(new MPI_Comm(comm), comm_free()); |
| } |
| |
| boost::mpi::group intercommunicator::local_group() const |
| { |
| return this->group(); |
| } |
| |
| int intercommunicator::remote_size() const |
| { |
| int size; |
| BOOST_MPI_CHECK_RESULT(MPI_Comm_remote_size, ((MPI_Comm)*this, &size)); |
| return size; |
| } |
| |
| boost::mpi::group intercommunicator::remote_group() const |
| { |
| MPI_Group gr; |
| BOOST_MPI_CHECK_RESULT(MPI_Comm_remote_group, ((MPI_Comm)*this, &gr)); |
| return boost::mpi::group(gr, /*adopt=*/true); |
| } |
| |
| communicator intercommunicator::merge(bool high) const |
| { |
| MPI_Comm comm; |
| BOOST_MPI_CHECK_RESULT(MPI_Intercomm_merge, ((MPI_Comm)*this, high, &comm)); |
| return communicator(comm, comm_take_ownership); |
| } |
| |
| } } // end namespace boost::mpi |
