| /* |
| Copyright 2013 Karsten Ahnert |
| Copyright 2013 Mario Mulansky |
| Copyright 2013 Pascal Germroth |
| |
| Distributed under 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 <iostream> |
| #include <sstream> |
| |
| #define BOOST_TEST_MODULE odeint_mpi |
| #include <boost/test/unit_test.hpp> |
| |
| #include <boost/numeric/odeint/external/mpi/mpi.hpp> |
| |
| using namespace boost::numeric::odeint; |
| |
| boost::mpi::environment env; |
| |
| BOOST_AUTO_TEST_SUITE( split_test_suite ) |
| |
| BOOST_AUTO_TEST_CASE( split_test ) |
| { |
| boost::mpi::communicator world; |
| |
| const size_t total_size = 31; |
| |
| std::vector<size_t> in_data, out_data; |
| mpi_state< std::vector<size_t> > state(world); |
| |
| // generate data on master |
| if(world.rank() == 0) |
| for(size_t i = 0 ; i < total_size ; i++) in_data.push_back(i); |
| |
| // copy to nodes |
| split( in_data, state ); |
| |
| BOOST_REQUIRE((state().size() == total_size / world.size()) |
| || (state().size() == total_size / world.size() + 1)); |
| |
| { |
| std::ostringstream ss; |
| ss << "state[" << world.rank() << "].data = {"; |
| std::copy(state().begin(), state().end(), std::ostream_iterator<size_t>(ss, ", ")); |
| ss << "}\n"; |
| std::clog << ss.str() << std::flush; |
| } |
| |
| // copy back to master |
| if(world.rank() == 0) out_data.resize(in_data.size()); |
| unsplit( state, out_data ); |
| |
| if(world.rank() == 0) |
| BOOST_REQUIRE_EQUAL_COLLECTIONS(in_data.begin(), in_data.end(), out_data.begin(), out_data.end()); |
| } |
| |
| |
| BOOST_AUTO_TEST_SUITE_END() |