X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7fa961e29eb3f67e9770c9f995c602e88091d74c..3072be2de56fbf379bb67604b4aef9701cc76244:/src/instr/instr_routing.c

diff --git a/src/instr/instr_routing.c b/src/instr/instr_routing.c
index 05e42e49d5..d41eca08db 100644
--- a/src/instr/instr_routing.c
+++ b/src/instr/instr_routing.c
@@ -8,263 +8,493 @@
 
 #ifdef HAVE_TRACING
 #include "surf/surf_private.h"
+#include "surf/network_private.h"
+#include "xbt/graph.h"
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY (instr_routing, instr, "Tracing platform hierarchy");
 
 extern xbt_dict_t defined_types; /* from instr_interface.c */
 
-typedef struct s_container *container_t;
-typedef struct s_container {
-  char *name;
-  char *type;
-  int level;
-  struct s_container *father;
-  xbt_dict_t children;
-}s_container_t;
-
-static container_t rootContainer = NULL;
-static xbt_dynar_t currentContainer = NULL;
-static xbt_dict_t allContainers = NULL;     /* all created containers indexed by name */
-xbt_dict_t hosts_types = NULL;
-xbt_dict_t links_types = NULL;
-
-static void instr_routing_parse_start_AS (void);
-static void instr_routing_parse_end_AS (void);
-static void instr_routing_parse_start_link (void);
-static void instr_routing_parse_end_link (void);
-static void instr_routing_parse_start_host (void);
-static void instr_routing_parse_end_host (void);
-static void instr_routing_parse_start_router (void);
-static void instr_routing_parse_end_router (void);
-static char *instr_AS_type (int level);
-
-static char *instr_AS_type (int level)
-{
-  char *ret = xbt_new (char, INSTR_DEFAULT_STR_SIZE);
-  if (level == 0){
-    snprintf (ret, INSTR_DEFAULT_STR_SIZE, "0");
-  }else{
-    snprintf (ret, INSTR_DEFAULT_STR_SIZE, "L%d", level);
-  }
-  return ret;
-}
+static int platform_created = 0;            /* indicate whether the platform file has been traced */
+static xbt_dynar_t currentContainer = NULL; /* push and pop, used only in creation */
 
-static void newContainerType (const char *type, const char *parentType, const char *name)
+static container_t findChild (container_t root, container_t a1)
 {
-  char *defined = xbt_dict_get_or_null (defined_types, type);
-  if (!defined){
-    pajeDefineContainerType(type, parentType, name);
-    xbt_dict_set(defined_types, type, xbt_strdup("1"), xbt_free);
+  if (root == a1) return root;
+
+  xbt_dict_cursor_t cursor = NULL;
+  container_t child;
+  char *child_name;
+  xbt_dict_foreach(root->children, cursor, child_name, child) {
+    if (findChild (child, a1)) return child;
   }
+  return NULL;
 }
 
-
-static void newVariableType (const char *type, const char *parentType, const char *name, const char *color)
+static container_t findCommonFather (container_t root, container_t a1, container_t a2)
 {
-  char *defined = xbt_dict_get_or_null (defined_types, type);
-  if (!defined){
-    if (color){
-      pajeDefineVariableTypeWithColor(type, parentType, name, color);
-    }else{
-      pajeDefineVariableType(type, parentType, name);
-    }
-    xbt_dict_set(defined_types, type, xbt_strdup("1"), xbt_free);
+  if (a1->father == a2->father) return a1->father;
+
+  xbt_dict_cursor_t cursor = NULL;
+  container_t child;
+  char *child_name;
+  container_t a1_try = NULL;
+  container_t a2_try = NULL;
+  xbt_dict_foreach(root->children, cursor, child_name, child) {
+    a1_try = findChild (child, a1);
+    a2_try = findChild (child, a2);
+    if (a1_try && a2_try) return child;
   }
+  return NULL;
 }
 
-void instr_routing_define_callbacks ()
+static void linkContainers (container_t father, container_t src, container_t dst, xbt_dict_t filter)
 {
-  if (!TRACE_is_active())
+  //ignore loopback
+  if (strcmp (src->name, "__loopback__") == 0 || strcmp (dst->name, "__loopback__") == 0)
     return;
-  surfxml_add_callback(STag_surfxml_AS_cb_list, &instr_routing_parse_start_AS);
-  surfxml_add_callback(ETag_surfxml_AS_cb_list, &instr_routing_parse_end_AS);
-  surfxml_add_callback(STag_surfxml_link_cb_list, &instr_routing_parse_start_link);
-  surfxml_add_callback(ETag_surfxml_link_cb_list, &instr_routing_parse_end_link);
-  surfxml_add_callback(STag_surfxml_host_cb_list, &instr_routing_parse_start_host);
-  surfxml_add_callback(ETag_surfxml_host_cb_list, &instr_routing_parse_end_host);
-  surfxml_add_callback(STag_surfxml_router_cb_list, &instr_routing_parse_start_router);
-  surfxml_add_callback(ETag_surfxml_router_cb_list, &instr_routing_parse_end_router);
-}
 
+  if (filter != NULL){
+    //check if we already register this pair (we only need one direction)
+    char aux1[INSTR_DEFAULT_STR_SIZE], aux2[INSTR_DEFAULT_STR_SIZE];
+    snprintf (aux1, INSTR_DEFAULT_STR_SIZE, "%s%s", src->name, dst->name);
+    snprintf (aux2, INSTR_DEFAULT_STR_SIZE, "%s%s", dst->name, src->name);
+    if (xbt_dict_get_or_null (filter, aux1)) return;
+    if (xbt_dict_get_or_null (filter, aux2)) return;
+
+    //ok, not found, register it
+    xbt_dict_set (filter, aux1, xbt_strdup ("1"), xbt_free);
+    xbt_dict_set (filter, aux2, xbt_strdup ("1"), xbt_free);
+  }
 
-static container_t newContainer (const char *name, const char *type, const char *typename)
-{
-  container_t newContainer = xbt_new0(s_container_t, 1);
-  newContainer->name = xbt_strdup (name);
-  newContainer->father = xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
-  newContainer->level = newContainer->father->level+1;
-  newContainer->type = xbt_strdup (type);
-  newContainer->children = xbt_dict_new();
-  xbt_dict_set(newContainer->father->children, newContainer->name, newContainer, NULL);
-
-  newContainerType (newContainer->type, newContainer->father->type, typename);
-  pajeCreateContainer (0, newContainer->name, newContainer->type, newContainer->father->name, newContainer->name);
-
-  return newContainer;
+  //declare type
+  char link_typename[INSTR_DEFAULT_STR_SIZE];
+  snprintf (link_typename, INSTR_DEFAULT_STR_SIZE, "%s-%s", src->type->name, dst->type->name);
+  type_t link_type = getLinkType (link_typename, father->type, src->type, dst->type);
+
+  //register EDGE types for triva configuration
+  xbt_dict_set (trivaEdgeTypes, link_type->name, xbt_strdup("1"), xbt_free);
+
+  //create the link
+  static long long counter = 0;
+  char key[INSTR_DEFAULT_STR_SIZE];
+  snprintf (key, INSTR_DEFAULT_STR_SIZE, "%lld", counter++);
+  new_pajeStartLink(SIMIX_get_clock(), father, link_type, src, "G", key);
+  new_pajeEndLink(SIMIX_get_clock(), father, link_type, dst, "G", key);
 }
 
-static void recursiveDestroyContainer (container_t container)
+static void recursiveGraphExtraction (AS_t rc, container_t container, xbt_dict_t filter)
 {
-  xbt_dict_cursor_t cursor = NULL;
-  container_t child;
-  char *child_name;
-  xbt_dict_foreach(container->children, cursor, child_name, child) {
-    recursiveDestroyContainer (child);
+  if (xbt_dict_length (rc->routing_sons)){
+    xbt_dict_cursor_t cursor = NULL;
+    AS_t rc_son;
+    char *child_name;
+    //bottom-up recursion
+    xbt_dict_foreach(rc->routing_sons, cursor, child_name, rc_son) {
+      container_t child_container = xbt_dict_get (container->children, rc_son->name);
+      recursiveGraphExtraction (rc_son, child_container, filter);
+    }
   }
 
-  pajeDestroyContainer(SIMIX_get_clock(), container->type, container->name);
-
-  xbt_free (container->name);
-  xbt_free (container->type);
-  xbt_free (container->children);
-  xbt_free (container);
-  container = NULL;
+  //let's get routes
+  xbt_dict_cursor_t cursor1 = NULL, cursor2 = NULL;
+  container_t child1, child2;
+  const char *child1_name, *child2_name;
+  xbt_dict_foreach(container->children, cursor1, child1_name, child1) {
+    if (child1->kind == INSTR_LINK) continue;
+    xbt_dict_foreach(container->children, cursor2, child2_name, child2) {
+      if (child2->kind == INSTR_LINK) continue;
+
+      if ((child1->kind == INSTR_HOST || child1->kind == INSTR_ROUTER) &&
+          (child2->kind == INSTR_HOST  || child2->kind == INSTR_ROUTER) &&
+          strcmp (child1_name, child2_name) != 0){
+
+        xbt_dynar_t route = NULL;
+        route = global_routing->get_route_or_null (child1_name, child2_name);
+        if (route == NULL) continue;
+
+        if (TRACE_onelink_only()){
+          if (xbt_dynar_length (route) > 1) continue;
+        }
+        container_t previous = child1;
+        int i;
+        for (i = 0; i < xbt_dynar_length(route); i++){
+          link_CM02_t *link = ((link_CM02_t*)xbt_dynar_get_ptr (route, i));
+          char *link_name = (*link)->lmm_resource.generic_resource.name;
+          container_t current = getContainerByName(link_name);
+          linkContainers(container, previous, current, filter);
+          previous = current;
+        }
+        linkContainers(container, previous, child2, filter);
+
+      }else if (child1->kind == INSTR_AS &&
+                child2->kind == INSTR_AS &&
+                strcmp(child1_name, child2_name) != 0){
+
+        route_extended_t route = rc->get_route (rc, child1_name, child2_name);
+        unsigned int cpt;
+        void *link;
+        container_t previous = getContainerByName(route->src_gateway);
+        xbt_dynar_foreach (route->generic_route.link_list, cpt, link) {
+          char *link_name = ((link_CM02_t)link)->lmm_resource.generic_resource.name;
+          container_t current = getContainerByName(link_name);
+          linkContainers (container, previous, current, filter);
+          previous = current;
+        }
+        container_t last = getContainerByName(route->dst_gateway);
+        linkContainers (container, previous, last, filter);
+      }
+    }
+  }
 }
 
 /*
  * Callbacks
  */
-static void instr_routing_parse_start_AS ()
+static void instr_routing_parse_start_AS (const char*id,const char*routing)
 {
-  if (rootContainer == NULL){
-    rootContainer = xbt_new0(s_container_t, 1);
-    rootContainer->name = xbt_strdup ("0");
-    rootContainer->type = xbt_strdup ("0");
-    rootContainer->level = 0;
-    rootContainer->father = NULL;
-    rootContainer->children = xbt_dict_new();
-
-    currentContainer = xbt_dynar_new (sizeof(s_container_t), NULL);
-    xbt_dynar_push (currentContainer, rootContainer);
-
-    allContainers = xbt_dict_new ();
-    hosts_types = xbt_dict_new ();
-    links_types = xbt_dict_new ();
-  }
-
-  container_t newContainer = xbt_new0(s_container_t, 1);
-  newContainer->name = xbt_strdup (A_surfxml_AS_id);
-  newContainer->father = xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
-  newContainer->level = newContainer->father->level+1;
-  newContainer->type = instr_AS_type (newContainer->level);
-  newContainer->children = xbt_dict_new();
-  xbt_dict_set(newContainer->father->children, newContainer->name, newContainer, NULL);
+  if (getRootContainer() == NULL){
+    container_t root = newContainer (id, INSTR_AS, NULL);
+    instr_paje_init (root);
+
+    if (TRACE_smpi_is_enabled()) {
+      if (!TRACE_smpi_is_grouped()){
+        type_t mpi = getContainerType("MPI", root->type);
+        getStateType ("MPI_STATE", mpi);
+        getLinkType ("MPI_LINK", getRootType(), mpi, mpi);
+      }
+    }
 
-  //trace
-  newContainerType (newContainer->type, newContainer->father->type, newContainer->type);
-  pajeCreateContainer (0, newContainer->name, newContainer->type, newContainer->father->name, newContainer->name);
+    if (TRACE_needs_platform()){
+      currentContainer = xbt_dynar_new (sizeof(container_t), NULL);
+      xbt_dynar_push (currentContainer, &root);
+    }
+    return;
+  }
 
-  //push
-  xbt_dynar_push (currentContainer, newContainer);
+  if (TRACE_needs_platform()){
+    container_t father = *(container_t*)xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
+    container_t new = newContainer (id, INSTR_AS, father);
+    xbt_dynar_push (currentContainer, &new);
+  }
 }
 
 static void instr_routing_parse_end_AS ()
 {
-  xbt_dynar_pop_ptr (currentContainer);
+  if (TRACE_needs_platform()){
+    xbt_dynar_pop_ptr (currentContainer);
+  }
+}
+
+static void instr_routing_parse_start_link (sg_platf_link_cbarg_t link)
+{
+  container_t father = *(container_t*)xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
+
+  double bandwidth_value = link->bandwidth;
+  double latency_value = link->latency;
+  xbt_dynar_t links_to_create = xbt_dynar_new (sizeof(char*), &xbt_free_ref);
+
+  if (link->policy == SURF_LINK_FULLDUPLEX){
+    char *up = bprintf("%s_UP", link->id);
+    char *down = bprintf("%s_DOWN", link->id);
+    xbt_dynar_push_as (links_to_create, char*, xbt_strdup(up));
+    xbt_dynar_push_as (links_to_create, char*, xbt_strdup(down));
+    free (up);
+    free (down);
+  }else{
+    xbt_dynar_push_as (links_to_create, char*, strdup(link->id));
+  }
+
+  char *link_name = NULL;
+  unsigned int i;
+  xbt_dynar_foreach (links_to_create, i, link_name){
+
+    container_t new = newContainer (link_name, INSTR_LINK, father);
+
+    if (TRACE_categorized() || TRACE_uncategorized()){
+      type_t bandwidth = getVariableType ("bandwidth", NULL, new->type);
+      type_t latency = getVariableType ("latency", NULL, new->type);
+      new_pajeSetVariable (0, new, bandwidth, bandwidth_value);
+      new_pajeSetVariable (0, new, latency, latency_value);
+    }
+    if (TRACE_uncategorized()){
+      getVariableType ("bandwidth_used", "0.5 0.5 0.5", new->type);
+    }
+  }
+
+  xbt_dynar_free (&links_to_create);
 }
 
-static void instr_routing_parse_start_link ()
+static void instr_routing_parse_start_host (sg_platf_host_cbarg_t host)
 {
-  container_t father = xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
-  char type[INSTR_DEFAULT_STR_SIZE];
-  snprintf (type, INSTR_DEFAULT_STR_SIZE, "LINK-%s", father->type);
-  container_t new = newContainer (A_surfxml_link_id, type, "LINK");
-
-  //bandwidth and latency
-  char bandwidth_type[INSTR_DEFAULT_STR_SIZE], latency_type[INSTR_DEFAULT_STR_SIZE];
-  snprintf (bandwidth_type, INSTR_DEFAULT_STR_SIZE, "bandwidth-%s", type);
-  snprintf (latency_type, INSTR_DEFAULT_STR_SIZE, "latency-%s", type);
-  newVariableType (bandwidth_type, type, "bandwidth", NULL);
-  newVariableType (latency_type, type, "latency", NULL);
-  pajeSetVariable(0, bandwidth_type, new->name, A_surfxml_link_bandwidth);
-  pajeSetVariable(0, latency_type, new->name, A_surfxml_link_latency);
+  container_t father = *(container_t*)xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
+  container_t new = newContainer (host->id, INSTR_HOST, father);
 
+  if (TRACE_categorized() || TRACE_uncategorized()) {
+    type_t power = getVariableType ("power", NULL, new->type);
+    new_pajeSetVariable (0, new, power, host->power_peak);
+  }
   if (TRACE_uncategorized()){
-    //bandwidth_used
-    char bandwidth_used_type[INSTR_DEFAULT_STR_SIZE];
-    snprintf (bandwidth_used_type, INSTR_DEFAULT_STR_SIZE, "bandwidth_used-%s", type);
-    newVariableType (bandwidth_used_type, type, "bandwidth_used", "0.5 0.5 0.5");
+    getVariableType ("power_used", "0.5 0.5 0.5", new->type);
   }
 
-  //register created link on the dictionary
-  xbt_dict_set (allContainers, A_surfxml_link_id, new, NULL);
+  if (TRACE_smpi_is_enabled() && TRACE_smpi_is_grouped()){
+    type_t mpi = getContainerType("MPI", new->type);
+    getStateType ("MPI_STATE", mpi);
+    getLinkType ("MPI_LINK", getRootType(), mpi, mpi);
+  }
 
-  //register this link type
-  xbt_dict_set (links_types, type, xbt_strdup("1"), xbt_free);
+  if (TRACE_msg_process_is_enabled()) {
+    type_t msg_process = getContainerType("MSG_PROCESS", new->type);
+    type_t state = getStateType ("MSG_PROCESS_STATE", msg_process);
+    getValue ("executing", "0 1 0", state);
+    getValue ("suspend", "1 0 1", state);
+    getValue ("sleep", "1 1 0", state);
+    getValue ("receive", "1 0 0", state);
+    getValue ("send", "0 0 1", state);
+    getValue ("task_execute", "0 1 1", state);
+    getLinkType ("MSG_PROCESS_LINK", getRootType(), msg_process, msg_process);
+    getLinkType ("MSG_PROCESS_TASK_LINK", getRootType(), msg_process, msg_process);
+  }
+
+  if (TRACE_msg_task_is_enabled()) {
+    type_t msg_task = getContainerType ("MSG_TASK", new->type);
+    type_t state = getStateType ("MSG_TASK_STATE", msg_task);
+    getValue ("MSG_task_execute", "0 1 0", state);
+    getValue ("created", "1 1 0", state);
+    getLinkType ("MSG_TASK_LINK", getRootType(), msg_task, msg_task);
+  }
 }
 
-static void instr_routing_parse_end_link ()
+static void instr_routing_parse_start_router (sg_platf_router_cbarg_t router)
 {
+  container_t father = *(container_t*)xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
+  newContainer (router->id, INSTR_ROUTER, father);
 }
 
-static void instr_routing_parse_start_host ()
+static void instr_routing_parse_end_platform ()
 {
-  container_t father = xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
-  char type[INSTR_DEFAULT_STR_SIZE];
-  snprintf (type, INSTR_DEFAULT_STR_SIZE, "HOST-%s", father->type);
-  container_t new = newContainer (A_surfxml_host_id, type, "HOST");
+  xbt_dynar_free(&currentContainer);
+  currentContainer = NULL;
+  xbt_dict_t filter = xbt_dict_new ();
+  recursiveGraphExtraction (global_routing->root, getRootContainer(), filter);
+  xbt_dict_free(&filter);
+  platform_created = 1;
+  TRACE_paje_dump_buffer(1);
+}
 
-  //power
-  char power_type[INSTR_DEFAULT_STR_SIZE];
-  snprintf (power_type, INSTR_DEFAULT_STR_SIZE, "power-%s", type);
-  newVariableType (power_type, type, "power", NULL);
-  pajeSetVariable(0, power_type, new->name, A_surfxml_host_power);
+void instr_routing_define_callbacks ()
+{
+  if (!TRACE_is_enabled()) return;
+  //always need the call backs to ASes (we need only the root AS),
+  //to create the rootContainer and the rootType properly
+  sg_platf_AS_begin_add_cb(instr_routing_parse_start_AS);
+  sg_platf_AS_end_add_cb(instr_routing_parse_end_AS);
+  if (!TRACE_needs_platform()) return;
+  sg_platf_link_add_cb(instr_routing_parse_start_link);
+  sg_platf_host_add_cb(instr_routing_parse_start_host);
+  sg_platf_router_add_cb(instr_routing_parse_start_router);
+
+  sg_platf_postparse_add_cb(instr_routing_parse_end_platform);
+}
 
-  if (TRACE_uncategorized()){
-    //power_used
-    char power_used_type[INSTR_DEFAULT_STR_SIZE];
-    snprintf (power_used_type, INSTR_DEFAULT_STR_SIZE, "power_used-%s", type);
-    newVariableType (power_used_type, type, "power_used", "0.5 0.5 0.5");
+/*
+ * user categories support
+ */
+static void recursiveNewVariableType (const char *new_typename, const char *color, type_t root)
+{
+  if (!strcmp (root->name, "HOST")){
+    char tnstr[INSTR_DEFAULT_STR_SIZE];
+    snprintf (tnstr, INSTR_DEFAULT_STR_SIZE, "p%s", new_typename);
+    getVariableType(tnstr, color, root);
+  }
+  if (!strcmp (root->name, "LINK")){
+    char tnstr[INSTR_DEFAULT_STR_SIZE];
+    snprintf (tnstr, INSTR_DEFAULT_STR_SIZE, "b%s", new_typename);
+    getVariableType(tnstr, color, root);
+  }
+  xbt_dict_cursor_t cursor = NULL;
+  type_t child_type;
+  char *name;
+  xbt_dict_foreach(root->children, cursor, name, child_type) {
+    recursiveNewVariableType (new_typename, color, child_type);
   }
+}
 
-  //register created host on the dictionary
-  xbt_dict_set (allContainers, A_surfxml_host_id, new, NULL);
+void instr_new_variable_type (const char *new_typename, const char *color)
+{
+  recursiveNewVariableType (new_typename, color, getRootType());
+}
 
-  //register this link type
-  xbt_dict_set (hosts_types, type, xbt_strdup("1"), xbt_free);
+static void recursiveNewUserVariableType (const char *father_type, const char *new_typename, const char *color, type_t root)
+{
+  if (!strcmp (root->name, father_type)){
+    getVariableType(new_typename, color, root);
+  }
+  xbt_dict_cursor_t cursor = NULL;
+  type_t child_type;
+  char *name;
+  xbt_dict_foreach(root->children, cursor, name, child_type) {
+    recursiveNewUserVariableType (father_type, new_typename, color, child_type);
+  }
 }
 
-static void instr_routing_parse_end_host ()
+void instr_new_user_variable_type  (const char *father_type, const char *new_typename, const char *color)
 {
+  recursiveNewUserVariableType (father_type, new_typename, color, getRootType());
 }
 
-static void instr_routing_parse_start_router ()
+
+
+int instr_platform_traced ()
 {
-  container_t father = xbt_dynar_get_ptr(currentContainer, xbt_dynar_length(currentContainer)-1);
-  char type[INSTR_DEFAULT_STR_SIZE];
-  snprintf (type, INSTR_DEFAULT_STR_SIZE, "ROUTER-%s", father->type);
-  newContainer (A_surfxml_router_id, type, "ROUTER");
+  return platform_created;
 }
 
-static void instr_routing_parse_end_router ()
+#define GRAPHICATOR_SUPPORT_FUNCTIONS
+
+
+static xbt_node_t new_xbt_graph_node (xbt_graph_t graph, const char *name, xbt_dict_t nodes)
 {
+  xbt_node_t ret = xbt_dict_get_or_null (nodes, name);
+  if (ret) return ret;
+
+  ret = xbt_graph_new_node (graph, xbt_strdup(name));
+  xbt_dict_set (nodes, name, ret, NULL);
+  return ret;
 }
 
-/*
- * Support functions
- */
-int instr_link_is_traced (const char *name)
+static xbt_edge_t new_xbt_graph_edge (xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges)
 {
-  if (((container_t)xbt_dict_get_or_null (allContainers, name))){
-    return 1;
-  } else {
-    return 0;
-  }
+  xbt_edge_t ret;
+  char *name;
+
+  const char *sn = TRACE_node_name (s);
+  const char *dn = TRACE_node_name (d);
+
+  name = bprintf ("%s%s", sn, dn);
+  ret = xbt_dict_get_or_null (edges, name);
+  if (ret) return ret;
+  free (name);
+  name = bprintf ("%s%s", dn, sn);
+  ret = xbt_dict_get_or_null (edges, name);
+  if (ret) return ret;
+
+  ret = xbt_graph_new_edge(graph, s, d, NULL);
+  xbt_dict_set (edges, name, ret, NULL);
+  return ret;
 }
 
-char *instr_link_type (const char *name)
+static void recursiveXBTGraphExtraction (xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges,
+    AS_t rc, container_t container)
 {
-  return ((container_t)xbt_dict_get (allContainers, name))->type;
+  if (xbt_dict_length (rc->routing_sons)){
+    xbt_dict_cursor_t cursor = NULL;
+    AS_t rc_son;
+    char *child_name;
+    //bottom-up recursion
+    xbt_dict_foreach(rc->routing_sons, cursor, child_name, rc_son) {
+      container_t child_container = xbt_dict_get (container->children, rc_son->name);
+      recursiveXBTGraphExtraction (graph, nodes, edges, rc_son, child_container);
+    }
+  }
+
+  //let's get routes
+  xbt_dict_cursor_t cursor1 = NULL, cursor2 = NULL;
+  container_t child1, child2;
+  const char *child1_name, *child2_name;
+  xbt_dict_foreach(container->children, cursor1, child1_name, child1) {
+    if (child1->kind == INSTR_LINK) continue;
+    xbt_dict_foreach(container->children, cursor2, child2_name, child2) {
+      if (child2->kind == INSTR_LINK) continue;
+
+      if ((child1->kind == INSTR_HOST || child1->kind == INSTR_ROUTER) &&
+          (child2->kind == INSTR_HOST  || child2->kind == INSTR_ROUTER) &&
+          strcmp (child1_name, child2_name) != 0){
+
+        xbt_dynar_t route = global_routing->get_route (child1_name, child2_name);
+        if (TRACE_onelink_only()){
+          if (xbt_dynar_length (route) > 1) continue;
+        }
+        unsigned int cpt;
+        void *link;
+        xbt_node_t current, previous = new_xbt_graph_node(graph, child1_name, nodes);
+        xbt_dynar_foreach (route, cpt, link) {
+          char *link_name = ((link_CM02_t)link)->lmm_resource.generic_resource.name;
+          current = new_xbt_graph_node(graph, link_name, nodes);
+          new_xbt_graph_edge (graph, previous, current, edges);
+          //previous -> current
+          previous = current;
+        }
+        current = new_xbt_graph_node(graph, child2_name, nodes);
+        new_xbt_graph_edge (graph, previous, current, edges);
+
+      }else if (child1->kind == INSTR_AS &&
+                child2->kind == INSTR_AS &&
+                strcmp(child1_name, child2_name) != 0){
+
+        route_extended_t route = rc->get_route (rc, child1_name, child2_name);
+        unsigned int cpt;
+        void *link;
+        xbt_node_t current, previous = new_xbt_graph_node(graph, route->src_gateway, nodes);
+        xbt_dynar_foreach (route->generic_route.link_list, cpt, link) {
+          char *link_name = ((link_CM02_t)link)->lmm_resource.generic_resource.name;
+          current = new_xbt_graph_node(graph, link_name, nodes);
+          //previous -> current
+          previous = current;
+        }
+        current = new_xbt_graph_node(graph, route->dst_gateway, nodes);
+        new_xbt_graph_edge (graph, previous, current, edges);
+      }
+    }
+  }
+
 }
 
-char *instr_host_type (const char *name)
+xbt_graph_t instr_routing_platform_graph (void)
 {
-  return ((container_t)xbt_dict_get (allContainers, name))->type;
+  xbt_graph_t ret = xbt_graph_new_graph (0, NULL);
+  xbt_dict_t nodes = xbt_dict_new ();
+  xbt_dict_t edges = xbt_dict_new ();
+  recursiveXBTGraphExtraction (ret, nodes, edges, global_routing->root, getRootContainer());
+  return ret;
 }
 
-void instr_destroy_platform ()
+void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename)
 {
-  if (rootContainer) recursiveDestroyContainer (rootContainer);
+  unsigned int cursor = 0;
+  xbt_node_t node = NULL;
+  xbt_edge_t edge = NULL;
+  FILE *file = NULL;
+
+  file = fopen(filename, "w");
+  xbt_assert(file, "Failed to open %s \n", filename);
+
+  if (g->directed)
+    fprintf(file, "digraph test {\n");
+  else
+    fprintf(file, "graph test {\n");
+
+  fprintf(file, "  graph [overlap=scale]\n");
+
+  fprintf(file, "  node [shape=box, style=filled]\n");
+  fprintf(file,
+          "  node [width=.3, height=.3, style=filled, color=skyblue]\n\n");
+
+  xbt_dynar_foreach(g->nodes, cursor, node) {
+    fprintf(file, "  \"%s\";\n", TRACE_node_name(node));
+  }
+  xbt_dynar_foreach(g->edges, cursor, edge) {
+    const char *src_s = TRACE_node_name (edge->src);
+    const char *dst_s = TRACE_node_name (edge->dst);
+    if (g->directed)
+      fprintf(file, "  \"%s\" -> \"%s\";\n", src_s, dst_s);
+    else
+      fprintf(file, "  \"%s\" -- \"%s\";\n", src_s, dst_s);
+  }
+  fprintf(file, "}\n");
+  fclose(file);
+
 }
 
 #endif /* HAVE_TRACING */