Example #1
0
static void
yagi_random_graph(GraphType &g, size_t max_vertices, int vertex_time_limit, double edge_to_vertex_ratio)
{
    start_deadman(vertex_time_limit);
    for (size_t i=0; i<max_vertices && !had_alarm; ++i)
        g.add_vertex();

    for (size_t i=g.num_vertices()*edge_to_vertex_ratio; i>0; --i)
        g.add_edge(yagi_random_vertex(g), yagi_random_vertex(g));
}
Example #2
0
Totals
yagi_time_add_vertex()
{
    GraphType g;
    start_deadman(2);
    Sawyer::Stopwatch t;
    while (!had_alarm && g.num_vertices()<MAX_VERTICES)
        g.add_vertex();
    t.stop();
    return report("add vertex", yagi_size(g), g.num_vertices(), t, "verts/s");
}
Example #3
0
Totals
yagi_time_remove_vertex()
{
    GraphType g;
    start_deadman(2);
    while (!had_alarm && g.num_vertices()<MAX_VERTICES)
        g.add_vertex();
    GraphSize gsize = yagi_size(g);
    size_t nv_orig = gsize.first;

    start_deadman(2);
    Sawyer::Stopwatch t;
    for (size_t i=0; i<nv_orig && !had_alarm; ++i)
        g.remove_vertex(yagi_random_vertex(g));
    t.stop();
    size_t nremoved = nv_orig - g.num_vertices();
    return report("vert erase", gsize, nremoved, t, "verts/s");
}
Example #4
0
Totals
yagi_time_add_edge()
{
    GraphType g;
    start_deadman(2);
    while (!had_alarm && g.num_vertices()<MAX_VERTICES)
        g.add_vertex();

    start_deadman(2);
    Sawyer::Stopwatch t;
    while (!had_alarm && g.num_edges()<MAX_EDGES) {
        typename GraphType::VertexDescriptor v1 = yagi_random_vertex(g);
        typename GraphType::VertexDescriptor v2 = yagi_random_vertex(g);
        g.add_edge(v1, v2);
    }
    t.stop();
    return report("add edge", yagi_size(g), g.num_edges(), t, "edges/s");
}