+ deployment_generator* gen;
+ gen = opt::topologies.new_instance(opt::auto_depl::topology);
+ gen->generate();
+ gen->deploy();
+ delete gen;
+}
+
+deployment_generator::deployment_generator()
+ : hosts(opt::auto_depl::nhosts)
+{
+ set_load(0, opt::auto_depl::load);
+}
+
+void deployment_generator::set_load(int host, double load)
+{
+ hosts[host].load = load;
+}
+
+void deployment_generator::set_neighbor(int host, int neighbor)
+{
+ hosts[host].neighbors.push_back(neighbor);
+}
+
+void deployment_generator::set_link(int host1, int host2)
+{
+ set_neighbor(host1, host2);
+ set_neighbor(host2, host1);
+}
+
+void deployment_generator::deploy()
+{
+ const char* func = "simulation_main";
+ xbt_dynar_t args = xbt_dynar_new(sizeof(const char*), NULL);
+ for (unsigned i = 0 ; i < hosts.size() ; ++i) {
+ const char* hostname = hostdata::at(i).get_name();
+ std::ostringstream oss;
+ oss << std::setprecision(12) << hosts[i].load;
+ std::string strload = oss.str();
+ DEBUG2("%s/load -> \"%s\"", hostname, strload.c_str());
+ xbt_dynar_push_as(args, const char*, strload.c_str());
+ for (unsigned j = 0 ; j < hosts[i].neighbors.size() ; ++j) {
+ int neighbor = hosts[i].neighbors[j];
+ const char* neighbor_name = hostdata::at(neighbor).get_name();
+ DEBUG2("%s/neighbor -> \"%s\"", hostname, neighbor_name);
+ xbt_dynar_push_as(args, const char*, neighbor_name);
+ }
+ MSG_set_function(hostname, func, args);
+ xbt_dynar_reset(args);
+ }
+ xbt_dynar_free(&args);
+}
+
+void deployment_btree::generate()
+{
+ for (unsigned i = 0 ; i < size() / 2 ; ++i) {
+ unsigned left_child = 2 * i + 1;
+ unsigned right_child = 2 * i + 2;
+ if (left_child < size()) {
+ set_link(i, left_child);
+ if (right_child < size())
+ set_link(i, right_child);
+ }
+ }
+}
+
+void deployment_clique::generate()
+{
+ for (unsigned i = 0 ; i < size() ; ++i)
+ for (unsigned j = 0 ; j < i ; ++j)
+ set_link(i, j);
+}
+
+void deployment_hcube::generate()
+{
+ for (unsigned i = 0 ; i < size() ; ++i)
+ for (unsigned j = 0 ; j < i ; ++j) {
+ // Adapted from rom http://en.wikipedia.org/wiki/Hamming_distance
+ unsigned dist = 0;
+ unsigned val = i ^ j;
+
+ // Count the number of set bits
+ while (val && dist < 2) {
+ ++dist;
+ val &= val - 1;
+ }
+ if (dist == 1)
+ set_link(i, j);
+ }
+}
+
+void deployment_line::generate()
+{
+ for (unsigned i = 0 ; i < size() - 1 ; ++i)
+ set_link(i, i + 1);
+}
+
+void deployment_ring::generate()
+{
+ set_neighbor(0, size() - 1);
+ for (unsigned i = 0 ; i < size() - 1 ; ++i)
+ set_link(i, i + 1);
+ set_neighbor(size() - 1, 0);
+}
+
+void deployment_star::generate()
+{
+ for (unsigned i = 1 ; i < size() ; ++i)
+ set_link(0, i);
+}
+
+void deployment_torus::generate()
+{
+ unsigned a = 0;
+ unsigned b = size();
+ while (a + 1 < b) {
+ unsigned c = (a + b) / 2;
+ if (c * c < size())
+ a = c;
+ else
+ b = c;
+ }
+ unsigned width = b;
+ // here width == ceil(sqrt(size))
+
+ unsigned first_on_last_line = (size() - 1) - (size() - 1) % width;
+ DEBUG4("torus size = %u ; width = %u ; height = %u ; foll = %u",
+ (unsigned )size(), width,
+ (unsigned )(size() / width + !!(size() % width)),
+ first_on_last_line);
+ for (unsigned i = 0; i < size(); i++) {
+ unsigned next_line;
+ unsigned prev_line;
+ unsigned next_column;
+ unsigned prev_column;
+
+ next_line = i + width;
+ if (next_line >= size())
+ next_line %= width; // rewind
+
+ if (i >= width) {
+ prev_line = i - width;
+ } else {
+ prev_line = first_on_last_line + i; // rewind
+ if (prev_line >= size())
+ prev_line -= width; // need to go at last but one line
+ }
+
+ if (i != size() - 1) {
+ next_column = i + 1;
+ if (next_column % width == 0)
+ next_column -= width; // rewind
+ } else {
+ next_column = first_on_last_line; // special case for last cell
+ }
+
+ if (i % width != 0) {
+ prev_column = i - 1;
+ } else if (i < first_on_last_line) {
+ prev_column = i + width - 1; // rewind
+ } else {
+ prev_column = size() - 1; // special case for 1st cell of last line
+ }
+ if (next_line != i) {
+ set_neighbor(i, next_line);
+ if (prev_line != next_line)
+ set_neighbor(i, prev_line);
+ }
+ if (next_column != i) {
+ set_neighbor(i, next_column);
+ if (prev_column != next_column)
+ set_neighbor(i, prev_column);
+ }
+ }
