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- // 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;
- }
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