86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
// Copyright (C) 2006 The Trustees of Indiana University.
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Authors: Brian Barrett
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// Nick Edmonds
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// Andrew Lumsdaine
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#include <boost/graph/use_mpi.hpp>
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#include <boost/config.hpp>
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#include <boost/throw_exception.hpp>
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#include <boost/graph/distributed/adjacency_list.hpp>
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#include <boost/property_map/parallel/distributed_property_map.hpp>
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#include <boost/graph/distributed/mpi_process_group.hpp>
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#include <boost/graph/dimacs.hpp>
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#include <boost/graph/graphviz.hpp>
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#include <boost/test/minimal.hpp>
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#include <iostream>
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#include <cstdlib>
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#include <iomanip>
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#include <fstream>
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#ifdef BOOST_NO_EXCEPTIONS
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void
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boost::throw_exception(std::exception const& ex)
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{
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std::cout << ex.what() << std::endl;
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abort();
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}
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#endif
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using namespace boost;
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using namespace boost::graph;
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using boost::graph::distributed::mpi_process_group;
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typedef double time_type;
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inline time_type get_time()
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{
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return MPI_Wtime();
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}
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std::string print_time(time_type t)
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{
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std::ostringstream out;
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out << std::setiosflags(std::ios::fixed) << std::setprecision(2) << t;
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return out.str();
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}
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void
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test_dimacs_reader(const char *filename)
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{
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mpi_process_group pg;
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typedef adjacency_list<vecS,
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distributedS<mpi_process_group, vecS>,
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undirectedS> Graph;
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std::ifstream file(filename);
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dimacs_basic_reader reader = dimacs_basic_reader(file, false);
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dimacs_basic_reader end;
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boost::parallel::variant_distribution<mpi_process_group> distrib =
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boost::parallel::block(pg, reader.n_vertices());
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Graph g(dimacs_edge_iterator<dimacs_basic_reader>(reader),
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dimacs_edge_iterator<dimacs_basic_reader>(end),
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reader.n_vertices(), pg, distrib);;
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// write_graphviz("reader.dot", g);
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}
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int
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test_main(int argc, char* argv[])
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{
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mpi::environment env(argc, argv);
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if (argc == 2) {
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test_dimacs_reader(argv[1]);
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}
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return 0;
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}
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