| // Copyright (C) 2006 The Trustees of Indiana University. |
| |
| // 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) |
| |
| // Authors: Brian Barrett |
| // Nick Edmonds |
| // Andrew Lumsdaine |
| |
| #include <boost/graph/use_mpi.hpp> |
| #include <boost/config.hpp> |
| #include <boost/throw_exception.hpp> |
| #include <boost/graph/distributed/adjacency_list.hpp> |
| #include <boost/property_map/parallel/distributed_property_map.hpp> |
| #include <boost/graph/distributed/mpi_process_group.hpp> |
| #include <boost/graph/dimacs.hpp> |
| #include <boost/graph/graphviz.hpp> |
| #include <boost/test/minimal.hpp> |
| |
| #include <iostream> |
| #include <cstdlib> |
| #include <iomanip> |
| #include <fstream> |
| |
| #ifdef BOOST_NO_EXCEPTIONS |
| void |
| boost::throw_exception(std::exception const& ex) |
| { |
| std::cout << ex.what() << std::endl; |
| abort(); |
| } |
| #endif |
| |
| using namespace boost; |
| using namespace boost::graph; |
| using boost::graph::distributed::mpi_process_group; |
| |
| typedef double time_type; |
| |
| inline time_type get_time() |
| { |
| return MPI_Wtime(); |
| } |
| |
| std::string print_time(time_type t) |
| { |
| std::ostringstream out; |
| out << std::setiosflags(std::ios::fixed) << std::setprecision(2) << t; |
| return out.str(); |
| } |
| |
| void |
| test_dimacs_reader(const char *filename) |
| { |
| mpi_process_group pg; |
| |
| typedef adjacency_list<vecS, |
| distributedS<mpi_process_group, vecS>, |
| undirectedS> Graph; |
| |
| std::ifstream file(filename); |
| dimacs_basic_reader reader = dimacs_basic_reader(file, false); |
| dimacs_basic_reader end; |
| boost::parallel::variant_distribution<mpi_process_group> distrib = |
| boost::parallel::block(pg, reader.n_vertices()); |
| |
| Graph g(dimacs_edge_iterator<dimacs_basic_reader>(reader), |
| dimacs_edge_iterator<dimacs_basic_reader>(end), |
| reader.n_vertices(), pg, distrib);; |
| |
| // write_graphviz("reader.dot", g); |
| } |
| |
| int |
| test_main(int argc, char* argv[]) |
| { |
| mpi::environment env(argc, argv); |
| |
| if (argc == 2) { |
| test_dimacs_reader(argv[1]); |
| } |
| |
| return 0; |
| } |