--- /dev/null
+/* Copyright (c) 2009-2016. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include "src/kernel/routing/AsCluster.hpp"
+#include "src/surf/network_interface.hpp"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_cluster, surf, "Routing part of surf");
+
+/* This routing is specifically setup to represent clusters, aka homogeneous sets of machines
+ * Note that a router is created, easing the interconnexion with the rest of the world. */
+
+namespace simgrid {
+namespace routing {
+ AsCluster::AsCluster(const char*name)
+ : AsImpl(name)
+ {}
+ AsCluster::~AsCluster()
+ {
+ xbt_dynar_free(&privateLinks_);
+ }
+
+void AsCluster::getRouteAndLatency(NetCard *src, NetCard *dst, sg_platf_route_cbarg_t route, double *lat)
+{
+ s_surf_parsing_link_up_down_t info;
+ XBT_VERB("cluster_get_route_and_latency from '%s'[%d] to '%s'[%d]",
+ src->name(), src->id(), dst->name(), dst->id());
+ xbt_assert(!xbt_dynar_is_empty(privateLinks_), "Cluster routing : no links attached to the source node - did you use host_link tag?");
+ if (! src->isRouter()) { // No specific link for router
+
+ if((src->id() == dst->id()) && hasLoopback_ ){
+ info = xbt_dynar_get_as(privateLinks_, src->id() * linkCountPerNode_, s_surf_parsing_link_up_down_t);
+ route->link_list->push_back(info.linkUp);
+ if (lat)
+ *lat += info.linkUp->getLatency();
+ return;
+ }
+
+
+ if (hasLimiter_){ // limiter for sender
+ info = xbt_dynar_get_as(privateLinks_, src->id() * linkCountPerNode_ + (hasLoopback_?1:0), s_surf_parsing_link_up_down_t);
+ route->link_list->push_back((Link*)info.linkUp);
+ }
+
+ info = xbt_dynar_get_as(privateLinks_, src->id() * linkCountPerNode_ + (hasLoopback_?1:0) + (hasLimiter_?1:0), s_surf_parsing_link_up_down_t);
+ if (info.linkUp) { // link up
+ route->link_list->push_back(info.linkUp);
+ if (lat)
+ *lat += info.linkUp->getLatency();
+ }
+
+ }
+
+ if (backbone_) {
+ route->link_list->push_back(backbone_);
+ if (lat)
+ *lat += backbone_->getLatency();
+ }
+
+ if (! dst->isRouter()) { // No specific link for router
+ info = xbt_dynar_get_as(privateLinks_, dst->id() * linkCountPerNode_ + hasLoopback_ + hasLimiter_, s_surf_parsing_link_up_down_t);
+
+ if (info.linkDown) { // link down
+ route->link_list->push_back(info.linkDown);
+ if (lat)
+ *lat += info.linkDown->getLatency();
+ }
+ if (hasLimiter_){ // limiter for receiver
+ info = xbt_dynar_get_as(privateLinks_, dst->id() * linkCountPerNode_ + hasLoopback_, s_surf_parsing_link_up_down_t);
+ route->link_list->push_back(info.linkUp);
+ }
+ }
+}
+
+void AsCluster::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
+{
+ int isrc;
+ int table_size = xbt_dynar_length(vertices_);
+
+ NetCard *src;
+ xbt_node_t current, previous, backboneNode = nullptr, routerNode;
+ s_surf_parsing_link_up_down_t info;
+
+ xbt_assert(router_,"Malformed cluster. This may be because your platform file is a hypergraph while it must be a graph.");
+
+ /* create the router */
+ char *link_name = router_->name();
+ routerNode = new_xbt_graph_node(graph, link_name, nodes);
+
+ if(backbone_) {
+ const char *link_nameR = backbone_->getName();
+ backboneNode = new_xbt_graph_node(graph, link_nameR, nodes);
+
+ new_xbt_graph_edge(graph, routerNode, backboneNode, edges);
+ }
+
+ for (isrc = 0; isrc < table_size; isrc++) {
+ src = xbt_dynar_get_as(vertices_, isrc, NetCard*);
+
+ if (! src->isRouter()) {
+ previous = new_xbt_graph_node(graph, src->name(), nodes);
+
+ info = xbt_dynar_get_as(privateLinks_, src->id(), s_surf_parsing_link_up_down_t);
+
+ if (info.linkUp) { // link up
+
+ const char *link_name = static_cast<simgrid::surf::Resource*>(
+ info.linkUp)->getName();
+ current = new_xbt_graph_node(graph, link_name, nodes);
+ new_xbt_graph_edge(graph, previous, current, edges);
+
+ if (backbone_) {
+ new_xbt_graph_edge(graph, current, backboneNode, edges);
+ } else {
+ new_xbt_graph_edge(graph, current, routerNode, edges);
+ }
+
+ }
+
+ if (info.linkDown) { // link down
+ const char *link_name = static_cast<simgrid::surf::Resource*>(
+ info.linkDown)->getName();
+ current = new_xbt_graph_node(graph, link_name, nodes);
+ new_xbt_graph_edge(graph, previous, current, edges);
+
+ if (backbone_) {
+ new_xbt_graph_edge(graph, current, backboneNode, edges);
+ } else {
+ new_xbt_graph_edge(graph, current, routerNode, edges);
+ }
+ }
+ }
+
+ }
+}
+
+void AsCluster::create_links_for_node(sg_platf_cluster_cbarg_t cluster, int id, int , int position){
+ s_surf_parsing_link_up_down_t info;
+ char* link_id = bprintf("%s_link_%d", cluster->id, id);
+
+ s_sg_platf_link_cbarg_t link;
+ memset(&link, 0, sizeof(link));
+ link.id = link_id;
+ link.bandwidth = cluster->bw;
+ link.latency = cluster->lat;
+ link.policy = cluster->sharing_policy;
+ sg_platf_new_link(&link);
+
+ if (link.policy == SURF_LINK_FULLDUPLEX) {
+ char *tmp_link = bprintf("%s_UP", link_id);
+ info.linkUp = Link::byName(tmp_link);
+ xbt_free(tmp_link);
+ tmp_link = bprintf("%s_DOWN", link_id);
+ info.linkDown = Link::byName(tmp_link);
+ xbt_free(tmp_link);
+ } else {
+ info.linkUp = Link::byName(link_id);
+ info.linkDown = info.linkUp;
+ }
+ xbt_dynar_set(privateLinks_, position, &info);
+ xbt_free(link_id);
+}
+
+}
+}
