X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e93257dad9c24c211ccdfcb64e36c8805f0ff832..7fdb9c9ac44fba9f76a3b45d032561995bec2e0d:/src/surf/network_ns3.c diff --git a/src/surf/network_ns3.c b/src/surf/network_ns3.c index b2e747039b..bb5a3565cb 100644 --- a/src/surf/network_ns3.c +++ b/src/surf/network_ns3.c @@ -5,61 +5,530 @@ * under the terms of the license (GNU LGPL) which comes with this package. */ #include "surf_private.h" +#include "surf/maxmin.h" #include "surf/ns3/ns3_interface.h" +#include "xbt/lib.h" +#include "surf/network_ns3_private.h" +#include "xbt/str.h" + +extern xbt_lib_t host_lib; +extern xbt_lib_t link_lib; +extern xbt_lib_t as_router_lib; XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_ns3, surf, "Logging specific to the SURF network NS3 module"); -extern routing_global_t global_routing; +extern routing_platf_t routing_platf; +extern xbt_dict_t dict_socket; + +static double time_to_next_flow_completion = -1; + +static double ns3_share_resources(double min); +static void ns3_update_actions_state(double now, double delta); +static void finalize(void); +static surf_action_t ns3_communicate(sg_routing_edge_t src_elm, + sg_routing_edge_t dst_elm, + double size, double rate); +static void action_suspend(surf_action_t action); +static void action_resume(surf_action_t action); +static int action_is_suspended(surf_action_t action); +static int action_unref(surf_action_t action); + +xbt_dynar_t IPV4addr; + +static void replace_bdw_ns3(char ** bdw) +{ + char *temp = xbt_strdup(*bdw); + xbt_free(*bdw); + *bdw = bprintf("%fBps",atof(temp)); + xbt_free(temp); + +} + +static void replace_lat_ns3(char ** lat) +{ + char *temp = xbt_strdup(*lat); + xbt_free(*lat); + *lat = bprintf("%fs",atof(temp)); + xbt_free(temp); +} + +static void parse_ns3_add_host(sg_platf_host_cbarg_t host) +{ + XBT_DEBUG("NS3_ADD_HOST '%s'",host->id); + xbt_lib_set(host_lib, + host->id, + NS3_HOST_LEVEL, + ns3_add_host(host->id) + ); +} + +static void parse_ns3_add_link(sg_platf_link_cbarg_t link) +{ + XBT_DEBUG("NS3_ADD_LINK '%s'",link->id); + + if(!IPV4addr) IPV4addr = xbt_dynar_new(sizeof(char*),free); + + tmgr_trace_t bw_trace; + tmgr_trace_t state_trace; + tmgr_trace_t lat_trace; + + bw_trace = link->bandwidth_trace; + lat_trace = link->latency_trace; + state_trace = link->state_trace; + + if (bw_trace) + XBT_INFO("The NS3 network model doesn't support bandwidth state traces"); + if (lat_trace) + XBT_INFO("The NS3 network model doesn't support latency state traces"); + if (state_trace) + XBT_INFO("The NS3 network model doesn't support link state traces"); + + ns3_link_t link_ns3 = xbt_new0(s_ns3_link_t,1);; + link_ns3->id = xbt_strdup((char*)(link->id)); + link_ns3->bdw = bprintf("%f",link->bandwidth); + link_ns3->lat = bprintf("%f",link->latency); + + surf_ns3_link_t l = xbt_new0(s_surf_ns3_link_t,1); + l->generic_resource.name = xbt_strdup(link->id); + l->generic_resource.properties = current_property_set; + l->data = link_ns3; + l->created = 1; + + xbt_lib_set(link_lib,link->id,NS3_LINK_LEVEL,link_ns3); + xbt_lib_set(link_lib,link->id,SURF_LINK_LEVEL,l); +} + +static void parse_ns3_add_router(sg_platf_router_cbarg_t router) +{ + XBT_DEBUG("NS3_ADD_ROUTER '%s'",router->id); + xbt_lib_set(as_router_lib, + router->id, + NS3_ASR_LEVEL, + ns3_add_router(router->id) + ); +} + +static void parse_ns3_add_AS(const char*id, int routing) +{ + XBT_DEBUG("NS3_ADD_AS '%s'",id); + xbt_lib_set(as_router_lib, + id, + NS3_ASR_LEVEL, + ns3_add_AS(id) + ); +} + +static void parse_ns3_add_cluster(sg_platf_cluster_cbarg_t cluster) +{ + const char *cluster_prefix = cluster->prefix; + const char *cluster_suffix = cluster->suffix; + const char *cluster_radical = cluster->radical; + const char *cluster_bb_bw = bprintf("%f",cluster->bb_bw); + const char *cluster_bb_lat = bprintf("%f",cluster->bb_lat); + const char *cluster_bw = bprintf("%f",cluster->bw); + const char *cluster_lat = bprintf("%f",cluster->lat); + const char *groups = NULL; + + int start, end, i; + unsigned int iter; + + xbt_dynar_t radical_elements; + xbt_dynar_t radical_ends; + xbt_dynar_t tab_elements_num = xbt_dynar_new(sizeof(int), NULL); + + char *router_id,*host_id; + + radical_elements = xbt_str_split(cluster_radical, ","); + xbt_dynar_foreach(radical_elements, iter, groups) { + radical_ends = xbt_str_split(groups, "-"); + + switch (xbt_dynar_length(radical_ends)) { + case 1: + start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *)); + xbt_dynar_push_as(tab_elements_num, int, start); + router_id = bprintf("ns3_%s%d%s", cluster_prefix, start, cluster_suffix); + xbt_lib_set(host_lib, + router_id, + NS3_HOST_LEVEL, + ns3_add_host_cluster(router_id) + ); + XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id); + free(router_id); + break; + + case 2: + start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *)); + end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *)); + for (i = start; i <= end; i++){ + xbt_dynar_push_as(tab_elements_num, int, i); + router_id = bprintf("ns3_%s%d%s", cluster_prefix, i, cluster_suffix); + xbt_lib_set(host_lib, + router_id, + NS3_HOST_LEVEL, + ns3_add_host_cluster(router_id) + ); + XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id); + free(router_id); + } + break; + + default: + XBT_DEBUG("Malformed radical"); + } + } + + //Create links + unsigned int cpt; + int elmts; + char * lat = xbt_strdup(cluster_lat); + char * bw = xbt_strdup(cluster_bw); + replace_lat_ns3(&lat); + replace_bdw_ns3(&bw); + + xbt_dynar_foreach(tab_elements_num,cpt,elmts) + { + host_id = bprintf("%s%d%s", cluster_prefix, elmts, cluster_suffix); + router_id = bprintf("ns3_%s%d%s", cluster_prefix, elmts, cluster_suffix); + XBT_DEBUG("Create link from '%s' to '%s'",host_id,router_id); + + ns3_nodes_t host_src = xbt_lib_get_or_null(host_lib,host_id, NS3_HOST_LEVEL); + ns3_nodes_t host_dst = xbt_lib_get_or_null(host_lib,router_id,NS3_HOST_LEVEL); + + if(host_src && host_dst){} + else xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); + + ns3_add_link(host_src->node_num,host_src->type, + host_dst->node_num,host_dst->type, + bw,lat); + + free(router_id); + free(host_id); + } + xbt_dynar_free(&tab_elements_num); + + + //Create link backbone + lat = xbt_strdup(cluster_bb_lat); + bw = xbt_strdup(cluster_bb_bw); + replace_lat_ns3(&lat); + replace_bdw_ns3(&bw); + ns3_add_cluster(bw,lat,cluster->id); + xbt_free(lat); + xbt_free(bw); +} + +static double ns3_get_link_latency (const void *link) +{ + double lat; + //XBT_DEBUG("link_id:%s link_lat:%s link_bdw:%s",((surf_ns3_link_t)link)->data->id,((surf_ns3_link_t)link)->data->lat,((surf_ns3_link_t)link)->data->bdw); + sscanf(((surf_ns3_link_t)link)->data->lat,"%lg",&lat); + return lat; +} +static double ns3_get_link_bandwidth (const void *link) +{ + double bdw; + //XBT_DEBUG("link_id:%s link_lat:%s link_bdw:%s",((surf_ns3_link_t)link)->data->id,((surf_ns3_link_t)link)->data->lat,((surf_ns3_link_t)link)->data->bdw); + sscanf(((surf_ns3_link_t)link)->data->bdw,"%lg",&bdw); + return bdw; +} + +static xbt_dynar_t ns3_get_route(void *src_card, void *dst_card) +{ + xbt_dynar_t route = NULL; + routing_get_route_and_latency(src_card, dst_card, &route, NULL); + return route; +} + +static void parse_ns3_end_platform(void) +{ + ns3_end_platform(); +} + +/* Create the ns3 topology based on routing strategy */ +static void create_ns3_topology(void) +{ + XBT_DEBUG("Starting topology generation"); + + xbt_dynar_shrink(IPV4addr,0); + + //get the onelinks from the parsed platform + xbt_dynar_t onelink_routes = routing_platf->get_onelink_routes(); + if (!onelink_routes) + xbt_die("There is no routes!"); + XBT_DEBUG("Have get_onelink_routes, found %ld routes",onelink_routes->used); + //save them in trace file + onelink_t onelink; + unsigned int iter; + xbt_dynar_foreach(onelink_routes, iter, onelink) { + char *src = onelink->src->name; + char *dst = onelink->dst->name; + void *link = onelink->link_ptr; + if( strcmp(src,dst) && ((surf_ns3_link_t)link)->created){ + XBT_DEBUG("Route from '%s' to '%s' with link '%s'",src,dst,((surf_ns3_link_t)link)->data->id); + char * link_bdw = xbt_strdup(((surf_ns3_link_t)link)->data->bdw); + char * link_lat = xbt_strdup(((surf_ns3_link_t)link)->data->lat); + replace_lat_ns3(&link_lat); + replace_bdw_ns3(&link_bdw); + ((surf_ns3_link_t)link)->created = 0; + + // XBT_DEBUG("src (%s), dst (%s), src_id = %d, dst_id = %d",src,dst, src_id, dst_id); + XBT_DEBUG("\tLink (%s) bdw:%s lat:%s",((surf_ns3_link_t)link)->data->id, + link_bdw, + link_lat + ); + + //create link ns3 + ns3_nodes_t host_src = xbt_lib_get_or_null(host_lib,src,NS3_HOST_LEVEL); + if(!host_src) host_src = xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL); + ns3_nodes_t host_dst = xbt_lib_get_or_null(host_lib,dst,NS3_HOST_LEVEL); + if(!host_dst) host_dst = xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL); + + if(host_src && host_dst){} + else xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); + + ns3_add_link(host_src->node_num,host_src->type,host_dst->node_num,host_dst->type,link_bdw,link_lat); -void parse_ns3_add_host(void) + xbt_free(link_bdw); + xbt_free(link_lat); + } + } +} + +static void define_callbacks_ns3(void) { - XBT_INFO("NS3_ADD_HOST '%s'",A_surfxml_host_id); - //ns3_add_host(A_surfxml_host_id); + sg_platf_host_add_cb (&parse_ns3_add_host); + sg_platf_router_add_cb (&parse_ns3_add_router); + sg_platf_link_add_cb (&parse_ns3_add_link); + sg_platf_cluster_add_cb (&parse_ns3_add_cluster); + sg_platf_AS_begin_add_cb (&parse_ns3_add_AS); + sg_platf_postparse_add_cb(&create_ns3_topology); //get_one_link_routes + sg_platf_postparse_add_cb(&parse_ns3_end_platform); //InitializeRoutes } -void parse_ns3_add_router(void) + +static void free_ns3_link(void * elmts) { - XBT_INFO("NS3_ADD_ROUTER '%s'",A_surfxml_router_id); + ns3_link_t link = elmts; + free(link->id); + free(link->bdw); + free(link->lat); + free(link); } -void parse_ns3_add_link(void) + +static void free_ns3_host(void * elmts) +{ + ns3_nodes_t host = elmts; + free(host); +} + +#ifdef HAVE_LATENCY_BOUND_TRACKING +static int ns3_get_link_latency_limited(surf_action_t action) { - XBT_INFO("NS3_ADD_LINK '%s'",A_surfxml_link_id); + return 0; } -void parse_ns3_add_AS(void) +#endif + +#ifdef HAVE_TRACING +static void ns3_action_set_category(surf_action_t action, const char *category) { - XBT_INFO("NS3_ADD_AS '%s'",A_surfxml_AS_id); + action->category = xbt_strdup (category); } -void parse_ns3_add_route(void) +#endif + +void surf_network_model_init_NS3() { - XBT_INFO("NS3_ADD_ROUTE from '%s' to '%s'",A_surfxml_route_src,A_surfxml_route_dst); + if (surf_network_model) + return; + + surf_network_model = surf_model_init(); + surf_network_model->name = "network NS3"; + surf_network_model->extension.network.get_link_latency = ns3_get_link_latency; + surf_network_model->extension.network.get_link_bandwidth = ns3_get_link_bandwidth; + surf_network_model->extension.network.get_route = ns3_get_route; + + surf_network_model->model_private->share_resources = ns3_share_resources; + surf_network_model->model_private->update_actions_state = ns3_update_actions_state; + surf_network_model->model_private->finalize = finalize; + + surf_network_model->suspend = action_suspend; + surf_network_model->resume = action_resume; + surf_network_model->is_suspended = action_is_suspended; + surf_network_model->action_unref = action_unref; + surf_network_model->extension.network.communicate = ns3_communicate; + +#ifdef HAVE_TRACING + surf_network_model->set_category = ns3_action_set_category; +#endif + + /* Added the initialization for NS3 interface */ + + if (ns3_initialize(xbt_cfg_get_string(_surf_cfg_set,"ns3/TcpModel"))) { + xbt_die("Impossible to initialize NS3 interface"); + } + + routing_model_create(NULL); + define_callbacks_ns3(); + + NS3_HOST_LEVEL = xbt_lib_add_level(host_lib,(void_f_pvoid_t)free_ns3_host); + NS3_ASR_LEVEL = xbt_lib_add_level(as_router_lib,(void_f_pvoid_t)free_ns3_host); + NS3_LINK_LEVEL = xbt_lib_add_level(link_lib,(void_f_pvoid_t)free_ns3_link); + + xbt_dynar_push(model_list, &surf_network_model); + +#ifdef HAVE_LATENCY_BOUND_TRACKING + surf_network_model->get_latency_limited = ns3_get_link_latency_limited; +#endif } -void parse_ns3_add_ASroute(void) + +static void finalize(void) { - XBT_INFO("NS3_ADD_ASROUTE from '%s' to '%s'",A_surfxml_ASroute_src,A_surfxml_ASroute_dst); + ns3_finalize(); + xbt_dynar_free_container(&IPV4addr); + xbt_dict_free(&dict_socket); } -void parse_ns3_add_cluster(void) + +static double ns3_share_resources(double min) +{ + XBT_DEBUG("ns3_share_resources"); + + xbt_swag_t running_actions = + surf_network_model->states.running_action_set; + + //get the first relevant value from the running_actions list + if (!xbt_swag_size(running_actions) || min == 0.0) + return -1.0; + else + do { + ns3_simulator(min); + time_to_next_flow_completion = ns3_time() - surf_get_clock(); + } while(double_equals(time_to_next_flow_completion,0)); + + XBT_DEBUG("min : %f",min); + XBT_DEBUG("ns3 time : %f",ns3_time()); + XBT_DEBUG("surf time : %f",surf_get_clock()); + XBT_DEBUG("Next completion %f :",time_to_next_flow_completion); + + return time_to_next_flow_completion; +} + +static void ns3_update_actions_state(double now, double delta) +{ + xbt_dict_cursor_t cursor = NULL; + char *key; + void *data; + + static xbt_dynar_t socket_to_destroy = NULL; + if(!socket_to_destroy) socket_to_destroy = xbt_dynar_new(sizeof(char*),NULL); + + surf_action_network_ns3_t action = NULL; + xbt_swag_t running_actions = + surf_network_model->states.running_action_set; + + /* If there are no running flows, just return */ + if (!xbt_swag_size(running_actions)) { + while(double_positive(now-ns3_time())) { + ns3_simulator(now-ns3_time()); + } + return; + } + + xbt_dict_foreach(dict_socket,cursor,key,data){ + action = (surf_action_network_ns3_t)ns3_get_socket_action(data); + XBT_DEBUG("Processing socket %p (action %p)",data,action); + action->generic_action.remains = action->generic_action.cost - ns3_get_socket_sent(data); + +#ifdef HAVE_TRACING + if (TRACE_is_enabled() && + surf_action_state_get(&(action->generic_action)) == SURF_ACTION_RUNNING){ + double data_sent = ns3_get_socket_sent(data); + double data_delta_sent = data_sent - action->last_sent; + + xbt_dynar_t route = NULL; + + routing_get_route_and_latency (action->src_elm, action->dst_elm, &route, NULL); + unsigned int i; + for (i = 0; i < xbt_dynar_length (route); i++){ + surf_ns3_link_t *link = ((surf_ns3_link_t*)xbt_dynar_get_ptr (route, i)); + TRACE_surf_link_set_utilization ((*link)->generic_resource.name, + ((surf_action_t) action)->category, + (data_delta_sent)/delta, + now-delta, + delta); + } + action->last_sent = data_sent; + } +#endif + + if(ns3_get_socket_is_finished(data) == 1){ + xbt_dynar_push(socket_to_destroy,&key); + XBT_DEBUG("Destroy socket %p of action %p", key, action); + action->generic_action.finish = now; + surf_action_state_set(&(action->generic_action), SURF_ACTION_DONE); + } + } + + while (!xbt_dynar_is_empty(socket_to_destroy)){ + xbt_dynar_pop(socket_to_destroy,&key); + + void *data = xbt_dict_get (dict_socket, key); + surf_action_network_ns3_t action = (surf_action_network_ns3_t)ns3_get_socket_action(data); + XBT_DEBUG ("Removing socket %p of action %p", key, action); + xbt_dict_remove(dict_socket,key); + } + return; +} + +/* Max durations are not supported */ +static surf_action_t ns3_communicate(sg_routing_edge_t src_elm, + sg_routing_edge_t dst_elm, + double size, double rate) +{ + surf_action_network_ns3_t action = NULL; + + XBT_DEBUG("Communicate from %s to %s", src_elm->name, dst_elm->name); + action = surf_action_new(sizeof(s_surf_action_network_ns3_t), size, surf_network_model, 0); + + ns3_create_flow(src_elm->name, dst_elm->name, surf_get_clock(), size, action); + +#ifdef HAVE_TRACING + action->last_sent = 0; + action->src_elm = src_elm; + action->dst_elm = dst_elm; +#endif + + return (surf_action_t) action; +} + +/* Suspend a flow() */ +static void action_suspend(surf_action_t action) +{ + THROW_UNIMPLEMENTED; +} + +/* Resume a flow() */ +static void action_resume(surf_action_t action) { - XBT_INFO("NS3_ADD_CLUSTER '%s'",A_surfxml_cluster_id); - routing_parse_Scluster(); + THROW_UNIMPLEMENTED; } -static void define_callbacks_ns3(const char *filename) +/* Test whether a flow is suspended */ +static int action_is_suspended(surf_action_t action) { - surfxml_add_callback(STag_surfxml_host_cb_list, &parse_ns3_add_host); //HOST - surfxml_add_callback(STag_surfxml_router_cb_list, &parse_ns3_add_router); //ROUTER - surfxml_add_callback(STag_surfxml_link_cb_list, &parse_ns3_add_link); //LINK - surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_ns3_add_AS); //AS - surfxml_add_callback(STag_surfxml_route_cb_list, &parse_ns3_add_route); //ROUTE - surfxml_add_callback(STag_surfxml_ASroute_cb_list, &parse_ns3_add_ASroute); //ASROUTE - surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_ns3_add_cluster); //CLUSTER + return 0; } -void surf_network_model_init_NS3(const char *filename) +static int action_unref(surf_action_t action) { - define_callbacks_ns3(filename); - surf_network_model = surf_model_init(); - surf_network_model->name = "network NS3"; + action->refcount--; + if (!action->refcount) { + xbt_swag_remove(action, action->state_set); - update_model_description(surf_network_model_description, - "NS3", surf_network_model); +#ifdef HAVE_TRACING + xbt_free(action->category); +#endif + XBT_DEBUG ("Removing action %p", action); + surf_action_free(&action); + return 1; + } + return 0; }