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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/core/lightweight_test.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
main(int argc, char* argv[])
{
mpi::environment env(argc, argv);
if (argc == 2) {
test_dimacs_reader(argv[1]);
}
return boost::report_errors();
}
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