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new tracing mask TRACE_VOLUME to trace the msg tasks communication size and group...
[simgrid.git] / src / surf / surf_routing.c
index 7f042e7..a06925c 100644 (file)
@@ -14,6 +14,7 @@
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route,surf,"Routing part of surf");
 
 routing_t used_routing = NULL;
+xbt_dict_t onelink_routes = NULL;
 
 /* Prototypes of each model */
 static void routing_model_full_create(size_t size_of_link,void *loopback);
@@ -64,6 +65,19 @@ typedef struct {
 } s_routing_full_t,*routing_full_t;
 
 #define ROUTE_FULL(i,j) ((routing_full_t)used_routing)->routing_table[(i)+(j)*(used_routing)->host_count]
+#define HOST2ROUTER(id) ((id)+(2<<29))
+#define ROUTER2HOST(id) ((id)-(2>>29))
+#define ISROUTER(id) ((id)>=(2<<29))
+
+/*
+ * Free the onelink routes
+ */
+static void onelink_route_elem_free(void *e) {
+  s_onelink_t tmp = (s_onelink_t)e;
+  if(tmp) {
+    free(tmp);
+  }
+}
 
 /*
  * Parsing
@@ -73,7 +87,23 @@ static void routing_full_parse_Shost(void) {
   DEBUG2("Seen host %s (#%d)",A_surfxml_host_id,used_routing->host_count);
   *val = used_routing->host_count++;
   xbt_dict_set(used_routing->host_id,A_surfxml_host_id,val,xbt_free);
+#ifdef HAVE_TRACING
+  TRACE_surf_host_define_id (A_surfxml_host_id, *val);
+#endif
+}
+
+static void routing_full_parse_Srouter(void) {
+       int *val = xbt_malloc(sizeof(int));
+  DEBUG3("Seen router %s (%d -> #%d)",A_surfxml_router_id,used_routing->router_count,
+               HOST2ROUTER(used_routing->router_count));
+  *val = HOST2ROUTER(used_routing->router_count++);
+  xbt_dict_set(used_routing->host_id,A_surfxml_router_id,val,xbt_free);
+#ifdef HAVE_TRACING
+  TRACE_surf_host_define_id (A_surfxml_host_id, *val);
+  TRACE_surf_host_declaration (A_surfxml_host_id, 0);
+#endif
 }
+
 static int src_id = -1;
 static int dst_id = -1;
 static void routing_full_parse_Sroute_set_endpoints(void)
@@ -144,7 +174,9 @@ static void routing_full_parse_Scluster(void)
 
   surfxml_bufferstack_push(1);
 
-  /* Make set */
+  /* Make set a set to parse the prefix/suffix/radical into a neat list of names */
+  DEBUG4("Make <set id='%s' prefix='%s' suffix='%s' radical='%s'>",
+      cluster_id,cluster_prefix,cluster_suffix,cluster_radical);
   SURFXML_BUFFER_SET(set_id, cluster_id);
   SURFXML_BUFFER_SET(set_prefix, cluster_prefix);
   SURFXML_BUFFER_SET(set_suffix, cluster_suffix);
@@ -153,27 +185,26 @@ static void routing_full_parse_Scluster(void)
   SURFXML_START_TAG(set);
   SURFXML_END_TAG(set);
 
-  /* Make foreach */
-  SURFXML_BUFFER_SET(foreach_set_id, cluster_id);
-
-  SURFXML_START_TAG(foreach);
-
-  /* Make host for the foreach */
-  routing_full_parse_change_cpu_data("$1", cluster_power, "1.0", "", "");
-  A_surfxml_host_state = A_surfxml_host_state_ON;
+  xbt_dynar_t names = xbt_dict_get(set_list,cluster_id);
 
-  SURFXML_START_TAG(host);
-  SURFXML_END_TAG(host);
+  unsigned int it1,it2;
+  char *name1,*name2;
+  xbt_dynar_foreach(names,it1,name1) {
+    /* create the host */
+    routing_full_parse_change_cpu_data(name1, cluster_power, "1.0", "", "");
+    A_surfxml_host_state = A_surfxml_host_state_ON;
 
-  /* Make link for the foreach */
-  routing_full_parse_change_link_data("$1", cluster_bw, "", cluster_lat, "", "");
-  A_surfxml_link_state = A_surfxml_link_state_ON;
-  A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
+    SURFXML_START_TAG(host);
+    SURFXML_END_TAG(host);
 
-  SURFXML_START_TAG(link);
-  SURFXML_END_TAG(link);
+    /* Here comes the link */
+    routing_full_parse_change_link_data(name1, cluster_bw, "", cluster_lat, "", "");
+    A_surfxml_link_state = A_surfxml_link_state_ON;
+    A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
 
-  SURFXML_END_TAG(foreach);
+    SURFXML_START_TAG(link);
+    SURFXML_END_TAG(link);
+  }
 
   /* Make backbone link */
   backbone_name = bprintf("%s_bb", cluster_id);
@@ -185,11 +216,53 @@ static void routing_full_parse_Scluster(void)
   SURFXML_START_TAG(link);
   SURFXML_END_TAG(link);
 
+  /* And now the internal routes */
+  xbt_dynar_foreach(names,it1,name1) {
+    xbt_dynar_foreach(names,it2,name2) {
+      if (strcmp(name1,name2)) {
+        A_surfxml_route_action = A_surfxml_route_action_POSTPEND;
+        SURFXML_BUFFER_SET(route_src,name1);
+        SURFXML_BUFFER_SET(route_dst,name2);
+        SURFXML_START_TAG(route); {
+          /* FIXME: name1 link is added by error about 20 lines below, so don't add it here
+          SURFXML_BUFFER_SET(link_c_ctn_id, name1);
+          SURFXML_START_TAG(link_c_ctn);
+          SURFXML_END_TAG(link_c_ctn);
+           */
+          SURFXML_BUFFER_SET(link_c_ctn_id, backbone_name);
+          SURFXML_START_TAG(link_c_ctn);
+          SURFXML_END_TAG(link_c_ctn);
+
+          SURFXML_BUFFER_SET(link_c_ctn_id, name2);
+          SURFXML_START_TAG(link_c_ctn);
+          SURFXML_END_TAG(link_c_ctn);
+
+        } SURFXML_END_TAG(route);
+      }
+    }
+  }
+
   /* Make route multi with the outside world, i.e. cluster->$* */
+
+  /* FIXME
+   * This also adds an elements to the routes within the cluster,
+   * and I guess it's wrong, but since this element is commented out in the above
+   * code creating the internal routes, we're good.
+   * To fix it, I'd say that we need a way to understand "$*-${cluster_id}" as "whole world, but the guys in that cluster"
+   * But for that, we need to install a real expression parser for src/dst attributes
+   *
+   * FIXME
+   * This also adds a dumb element (the private link) in place of the loopback. Then, since
+   * the loopback is added only if no link to self already exist, this fails.
+   * That's really dumb.
+   *
+   * FIXME
+   * It seems to me that it does not add the backbone to the path to outside world...
+   */
   SURFXML_BUFFER_SET(route_c_multi_src, cluster_id);
   SURFXML_BUFFER_SET(route_c_multi_dst, "$*");
   A_surfxml_route_c_multi_symmetric = A_surfxml_route_c_multi_symmetric_NO;
-  A_surfxml_route_c_multi_action = A_surfxml_route_c_multi_action_OVERRIDE;
+  A_surfxml_route_c_multi_action = A_surfxml_route_c_multi_action_PREPEND;
 
   SURFXML_START_TAG(route_c_multi);
 
@@ -200,21 +273,6 @@ static void routing_full_parse_Scluster(void)
 
   SURFXML_END_TAG(route_c_multi);
 
-  /* Make route multi between cluster hosts, i.e. cluster->cluster */
-  SURFXML_BUFFER_SET(route_c_multi_src, cluster_id);
-  SURFXML_BUFFER_SET(route_c_multi_dst, cluster_id);
-  A_surfxml_route_c_multi_action = A_surfxml_route_c_multi_action_POSTPEND;
-  A_surfxml_route_c_multi_symmetric = A_surfxml_route_c_multi_symmetric_NO;
-
-  SURFXML_START_TAG(route_c_multi);
-
-  SURFXML_BUFFER_SET(link_c_ctn_id, backbone_name);
-
-  SURFXML_START_TAG(link_c_ctn);
-  SURFXML_END_TAG(link_c_ctn);
-
-  SURFXML_END_TAG(route_c_multi);
-
   free(backbone_name);
 
   /* Restore buff */
@@ -251,6 +309,25 @@ static void routing_full_parse_end(void) {
     dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 16);
     xbt_dynar_free(&keys);
 
+    if(xbt_dynar_length(links) == 1){
+      s_onelink_t new_link = (s_onelink_t) xbt_malloc0(sizeof(s_onelink));
+      new_link->src_id = src_id;
+      new_link->dst_id = dst_id;
+      link_name = xbt_dynar_getfirst_as(links, char*);
+      new_link->link_ptr = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
+      DEBUG3("Adding onelink route from (#%d) to (#%d), link_name %s",src_id, dst_id, link_name);
+      xbt_dict_set(onelink_routes, link_name, (void *)new_link, onelink_route_elem_free);
+#ifdef HAVE_TRACING
+      TRACE_surf_link_save_endpoints (link_name, src_id, dst_id);
+#endif
+    }
+
+    if(ISROUTER(src_id) || ISROUTER(dst_id)) {
+                               DEBUG2("There is route with a router here: (%d ,%d)",src_id,dst_id);
+                               /* Check there is only one link in the route and store the information */
+                               continue;
+    }
+
     DEBUG4("Handle %d %d (from %d hosts): %ld links",
         src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
     xbt_dynar_foreach(links, cpt, link_name) {
@@ -277,9 +354,18 @@ static void routing_full_parse_end(void) {
  * Business methods
  */
 static xbt_dynar_t routing_full_get_route(int src,int dst) {
+  xbt_assert0(!(ISROUTER(src) || ISROUTER(dst)), "Ask for route \"from\" or \"to\" a router node");
   return ROUTE_FULL(src,dst);
 }
 
+static xbt_dict_t routing_full_get_onelink_routes(void){
+  return onelink_routes;
+}
+
+static int routing_full_is_router(int id){
+       return ISROUTER(id);
+}
+
 static void routing_full_finalize(void) {
   routing_full_t routing = (routing_full_t)used_routing;
   int i,j;
@@ -290,6 +376,7 @@ static void routing_full_finalize(void) {
         xbt_dynar_free(&ROUTE_FULL(i, j));
     free(routing->routing_table);
     xbt_dict_free(&used_routing->host_id);
+    xbt_dict_free(&onelink_routes);
     free(routing);
     routing=NULL;
   }
@@ -301,16 +388,23 @@ static void routing_model_full_create(size_t size_of_link,void *loopback) {
   routing->generic_routing.name = "Full";
   routing->generic_routing.host_count = 0;
   routing->generic_routing.get_route = routing_full_get_route;
+  routing->generic_routing.get_onelink_routes = routing_full_get_onelink_routes;
+  routing->generic_routing.is_router = routing_full_is_router;
   routing->generic_routing.finalize = routing_full_finalize;
+
   routing->size_of_link = size_of_link;
   routing->loopback = loopback;
 
   /* Set it in position */
   used_routing = (routing_t) routing;
 
+  /* Set the dict for onehop routes */
+  onelink_routes =  xbt_dict_new();
+
   /* Setup the parsing callbacks we need */
   routing->generic_routing.host_id = xbt_dict_new();
   surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
+  surfxml_add_callback(STag_surfxml_router_cb_list, &routing_full_parse_Srouter);
   surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_full_parse_end);
   surfxml_add_callback(STag_surfxml_route_cb_list,
       &routing_full_parse_Sroute_set_endpoints);
@@ -517,6 +611,14 @@ static void routing_floyd_finalize(void) {
   }
 }
 
+static xbt_dict_t routing_floyd_get_onelink_routes(void){
+  xbt_assert0(0,"The get_onelink_routes feature is not supported in routing model Floyd");
+}
+
+static int routing_floyd_is_router(int id){
+  xbt_assert0(0,"The get_is_router feature is not supported in routing model Floyd");
+}
+
 static void routing_model_floyd_create(size_t size_of_link,void *loopback) {
   /* initialize our structure */
   routing_floyd_t routing = xbt_new0(s_routing_floyd_t,1);
@@ -524,6 +626,8 @@ static void routing_model_floyd_create(size_t size_of_link,void *loopback) {
   routing->generic_routing.host_count = 0;
   routing->generic_routing.host_id = xbt_dict_new();
   routing->generic_routing.get_route = routing_floyd_get_route;
+  routing->generic_routing.get_onelink_routes = routing_floyd_get_onelink_routes;
+  routing->generic_routing.is_router = routing_floyd_is_router;
   routing->generic_routing.finalize = routing_floyd_finalize;
   routing->size_of_link = size_of_link;
   routing->loopback = loopback;
@@ -864,6 +968,14 @@ static void routing_dijkstra_finalize(void) {
   }
 }
 
+static xbt_dict_t routing_dijkstraboth_get_onelink_routes(void){
+  xbt_assert0(0,"The get_onelink_routes feature is not supported in routing model dijkstraboth");
+}
+
+static int routing_dijkstraboth_is_router(int id){
+  xbt_assert0(0,"The get_is_router feature is not supported in routing model dijkstraboth");
+}
+
 /*
  *
  */
@@ -873,6 +985,8 @@ static void routing_model_dijkstraboth_create(size_t size_of_link,void *loopback
   routing->generic_routing.name = "Dijkstra";
   routing->generic_routing.host_count = 0;
   routing->generic_routing.get_route = routing_dijkstra_get_route;
+  routing->generic_routing.get_onelink_routes = routing_dijkstraboth_get_onelink_routes;
+  routing->generic_routing.is_router = routing_dijkstraboth_is_router;
   routing->generic_routing.finalize = routing_dijkstra_finalize;
   routing->size_of_link = size_of_link;
   routing->loopback = loopback;
@@ -902,6 +1016,7 @@ static void routing_model_dijkstracache_create(size_t size_of_link,void *loopbac
 /* ************************************************** */
 /* ********** NO ROUTING **************************** */
 
+
 static void routing_none_finalize(void) {
   if (used_routing) {
     xbt_dict_free(&used_routing->host_id);
@@ -916,7 +1031,10 @@ static void routing_model_none_create(size_t size_of_link,void *loopback) {
   routing->name = "none";
   routing->host_count = 0;
   routing->host_id = xbt_dict_new();
+  routing->get_onelink_routes = NULL;
+  routing->is_router = NULL;
   routing->get_route = NULL;
+
   routing->finalize = routing_none_finalize;
 
   /* Set it in position */