X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/8c272bc83bed049c84b9eb1155edbc1d01baaafb..831de10adaaf8910940aa280e2ac2dd075b5ffe5:/src/kernel/routing/AsCluster.cpp

diff --git a/src/kernel/routing/AsCluster.cpp b/src/kernel/routing/AsCluster.cpp
new file mode 100644
index 0000000000..10ef461a3c
--- /dev/null
+++ b/src/kernel/routing/AsCluster.cpp
@@ -0,0 +1,166 @@
+/* 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);
+}
+
+}
+}