1 /* Copyright (c) 2009-2016. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "src/surf/AsCluster.hpp"
7 #include "src/surf/network_interface.hpp"
9 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_cluster, surf, "Routing part of surf");
11 /* This routing is specifically setup to represent clusters, aka homogeneous sets of machines
12 * Note that a router is created, easing the interconnexion with the rest of the world.
17 AsCluster::AsCluster(const char*name)
20 AsCluster::~AsCluster()
22 xbt_dynar_free(&privateLinks_);
25 void AsCluster::getRouteAndLatency(NetCard *src, NetCard *dst, sg_platf_route_cbarg_t route, double *lat)
27 s_surf_parsing_link_up_down_t info;
28 XBT_VERB("cluster_get_route_and_latency from '%s'[%d] to '%s'[%d]",
29 src->name(), src->id(), dst->name(), dst->id());
31 if (! src->isRouter()) { // No specific link for router
33 if((src->id() == dst->id()) && has_loopback_ ){
34 info = xbt_dynar_get_as(privateLinks_, src->id() * nb_links_per_node_, s_surf_parsing_link_up_down_t);
35 route->link_list->push_back(info.link_up);
37 *lat += info.link_up->getLatency();
42 if (has_limiter_){ // limiter for sender
43 info = xbt_dynar_get_as(privateLinks_, src->id() * nb_links_per_node_ + has_loopback_, s_surf_parsing_link_up_down_t);
44 route->link_list->push_back((Link*)info.link_up);
47 info = xbt_dynar_get_as(privateLinks_, src->id() * nb_links_per_node_ + has_loopback_ + has_limiter_, s_surf_parsing_link_up_down_t);
48 if (info.link_up) { // link up
49 route->link_list->push_back(info.link_up);
51 *lat += info.link_up->getLatency();
57 route->link_list->push_back(backbone_);
59 *lat += backbone_->getLatency();
62 if (! dst->isRouter()) { // No specific link for router
63 info = xbt_dynar_get_as(privateLinks_, dst->id() * nb_links_per_node_ + has_loopback_ + has_limiter_, s_surf_parsing_link_up_down_t);
65 if (info.link_down) { // link down
66 route->link_list->push_back(info.link_down);
68 *lat += info.link_down->getLatency();
70 if (has_limiter_){ // limiter for receiver
71 info = xbt_dynar_get_as(privateLinks_, dst->id() * nb_links_per_node_ + has_loopback_, s_surf_parsing_link_up_down_t);
72 route->link_list->push_back(info.link_up);
77 void AsCluster::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
80 int table_size = xbt_dynar_length(vertices_);
83 xbt_node_t current, previous, backboneNode = NULL, routerNode;
84 s_surf_parsing_link_up_down_t info;
86 xbt_assert(router_,"Malformed cluster. This may be because your platform file is a hypergraph while it must be a graph.");
88 /* create the router */
89 char *link_name = router_->name();
90 routerNode = new_xbt_graph_node(graph, link_name, nodes);
93 const char *link_nameR = backbone_->getName();
94 backboneNode = new_xbt_graph_node(graph, link_nameR, nodes);
96 new_xbt_graph_edge(graph, routerNode, backboneNode, edges);
99 for (isrc = 0; isrc < table_size; isrc++) {
100 src = xbt_dynar_get_as(vertices_, isrc, NetCard*);
102 if (! src->isRouter()) {
103 previous = new_xbt_graph_node(graph, src->name(), nodes);
105 info = xbt_dynar_get_as(privateLinks_, src->id(), s_surf_parsing_link_up_down_t);
107 if (info.link_up) { // link up
109 const char *link_name = static_cast<simgrid::surf::Resource*>(
110 info.link_up)->getName();
111 current = new_xbt_graph_node(graph, link_name, nodes);
112 new_xbt_graph_edge(graph, previous, current, edges);
115 new_xbt_graph_edge(graph, current, backboneNode, edges);
117 new_xbt_graph_edge(graph, current, routerNode, edges);
122 if (info.link_down) { // link down
123 const char *link_name = static_cast<simgrid::surf::Resource*>(
124 info.link_down)->getName();
125 current = new_xbt_graph_node(graph, link_name, nodes);
126 new_xbt_graph_edge(graph, previous, current, edges);
129 new_xbt_graph_edge(graph, current, backboneNode, edges);
131 new_xbt_graph_edge(graph, current, routerNode, edges);
139 void AsCluster::create_links_for_node(sg_platf_cluster_cbarg_t cluster, int id, int , int position){
140 s_surf_parsing_link_up_down_t info;
141 char* link_id = bprintf("%s_link_%d", cluster->id, id);
143 s_sg_platf_link_cbarg_t link;
144 memset(&link, 0, sizeof(link));
146 link.bandwidth = cluster->bw;
147 link.latency = cluster->lat;
148 link.policy = cluster->sharing_policy;
149 sg_platf_new_link(&link);
151 if (link.policy == SURF_LINK_FULLDUPLEX) {
152 char *tmp_link = bprintf("%s_UP", link_id);
153 info.link_up = Link::byName(tmp_link);
155 tmp_link = bprintf("%s_DOWN", link_id);
156 info.link_down = Link::byName(tmp_link);
159 info.link_up = info.link_down = Link::byName(link_id);
161 xbt_dynar_set(privateLinks_, position, &info);