projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | // Copyright (C) 2007 Trustees of Indiana University |
| 2 | ||
| 3 | // Authors: Douglas Gregor | |
| 4 | // Andrew Lumsdaine | |
| 5 | ||
| 6 | // Use, modification and distribution is subject to the Boost Software | |
| 7 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| 8 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 9 | #include <boost/mpi/intercommunicator.hpp> | |
| 10 | #include <boost/mpi/environment.hpp> | |
| 11 | #include <boost/mpi/group.hpp> | |
| 12 | ||
| 13 | namespace boost { namespace mpi { | |
| 14 | ||
| 15 | intercommunicator::intercommunicator(const communicator& local, | |
| 16 | int local_leader, | |
| 17 | const communicator& peer, | |
| 18 | int remote_leader) | |
| 19 | { | |
| 20 | MPI_Comm comm; | |
| 21 | BOOST_MPI_CHECK_RESULT(MPI_Intercomm_create, | |
| 22 | ((MPI_Comm)local, local_leader, | |
| 23 | (MPI_Comm)peer, remote_leader, | |
| 24 | environment::collectives_tag(), &comm)); | |
| 25 | comm_ptr.reset(new MPI_Comm(comm), comm_free()); | |
| 26 | } | |
| 27 | ||
| 28 | boost::mpi::group intercommunicator::local_group() const | |
| 29 | { | |
| 30 | return this->group(); | |
| 31 | } | |
| 32 | ||
| 33 | int intercommunicator::remote_size() const | |
| 34 | { | |
| 35 | int size; | |
| 36 | BOOST_MPI_CHECK_RESULT(MPI_Comm_remote_size, ((MPI_Comm)*this, &size)); | |
| 37 | return size; | |
| 38 | } | |
| 39 | ||
| 40 | boost::mpi::group intercommunicator::remote_group() const | |
| 41 | { | |
| 42 | MPI_Group gr; | |
| 43 | BOOST_MPI_CHECK_RESULT(MPI_Comm_remote_group, ((MPI_Comm)*this, &gr)); | |
| 44 | return boost::mpi::group(gr, /*adopt=*/true); | |
| 45 | } | |
| 46 | ||
| 47 | communicator intercommunicator::merge(bool high) const | |
| 48 | { | |
| 49 | MPI_Comm comm; | |
| 50 | BOOST_MPI_CHECK_RESULT(MPI_Intercomm_merge, ((MPI_Comm)*this, high, &comm)); | |
| 51 | return communicator(comm, comm_take_ownership); | |
| 52 | } | |
| 53 | ||
| 54 | } } // end namespace boost::mpi |