1 /* Copyright (c) 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "surf_private.h"
8 #include "surf/random_mgr.h"
13 typedef struct surf_action_network_Vivaldi {
14 s_surf_action_t generic_action;
18 } s_surf_action_network_Vivaldi_t, *surf_action_network_Vivaldi_t;
20 typedef struct s_netviva_coords {
22 } s_netviva_coords_t, *netviva_coords_t;
23 xbt_dict_t coords; /* Host name -> coordinates */
25 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
26 static random_data_t random_latency_viva = NULL;
27 static int host_number_int_viva = 0;
29 static void netviva_count_hosts(void)
31 host_number_int_viva++;
34 static void netviva_define_callbacks(const char *file)
36 surfxml_add_callback(STag_surfxml_host_cb_list, &netviva_count_hosts);
39 static int netviva_resource_used(void *resource_id)
41 /* nothing to do here */
45 static int netviva_action_unref(surf_action_t action)
48 if (!action->refcount) {
49 xbt_swag_remove(action, action->state_set);
52 xbt_free(action->category);
60 static void netviva_action_cancel(surf_action_t action)
65 static void netviva_action_recycle(surf_action_t action)
70 static double netviva_action_get_remains(surf_action_t action)
72 return action->remains;
75 /* look for the next event to finish */
76 static double netviva_share_resources(double now)
78 surf_action_network_Vivaldi_t action = NULL;
79 xbt_swag_t running_actions =
80 surf_network_model->states.running_action_set;
83 xbt_swag_foreach(action, running_actions) {
84 if (action->latency > 0) {
86 min = action->latency;
87 else if (action->latency < min)
88 min = action->latency;
95 static void netviva_update_actions_state(double now, double delta)
97 /* Advance the actions by delta seconds */
98 surf_action_network_Vivaldi_t action = NULL;
99 surf_action_network_Vivaldi_t next_action = NULL;
100 xbt_swag_t running_actions =
101 surf_network_model->states.running_action_set;
103 xbt_swag_foreach_safe(action, next_action, running_actions) {
104 if (action->latency > 0) {
105 if (action->latency > delta) {
106 double_update(&(action->latency), delta);
108 action->latency = 0.0;
111 double_update(&(action->generic_action.remains),
112 action->generic_action.cost * delta / action->lat_init);
113 if (action->generic_action.max_duration != NO_MAX_DURATION)
114 double_update(&(action->generic_action.max_duration), delta);
116 if (action->generic_action.remains <= 0) { /* This action is done, inform SURF about it */
117 action->generic_action.finish = surf_get_clock();
118 surf_network_model->action_state_set((surf_action_t) action,
120 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
121 && (action->generic_action.max_duration <= 0)) {
122 action->generic_action.finish = surf_get_clock();
123 surf_network_model->action_state_set((surf_action_t) action,
129 static void netviva_update_resource_state(void *id,
130 tmgr_trace_event_t event_type,
131 double value, double time)
132 { /* Called as soon as there is a trace modification */
136 static surf_action_t netviva_communicate(const char *src_name,
137 const char *dst_name, double size,
140 surf_action_network_Vivaldi_t action = NULL;
141 netviva_coords_t c1, c2;
142 c1 = xbt_dict_get(coords, src_name);
143 c2 = xbt_dict_get(coords, dst_name);
146 surf_action_new(sizeof(s_surf_action_network_Vivaldi_t), size,
147 surf_network_model, 0);
149 action->suspended = 0;
151 action->latency = sqrt((c1->x - c2->x) * (c1->x - c2->x) + (c1->y - c2->y) * (c1->y - c2->y)) + fabs(c1->h) + fabs(c2->h); //random_generate(random_latency_viva);
152 action->lat_init = action->latency;
154 if (action->latency <= 0.0) {
155 action->generic_action.state_set =
156 surf_network_model->states.done_action_set;
157 xbt_swag_insert(action, action->generic_action.state_set);
160 return (surf_action_t) action;
163 /* returns an array of link_Vivaldi_t */
164 static xbt_dynar_t netviva_get_route(void *src, void *dst)
166 xbt_die("Calling this function does not make any sense");
169 static double netviva_get_link_bandwidth(const void *link)
174 static double netviva_get_link_latency(const void *link)
179 static int netviva_link_shared(const void *link)
184 static void netviva_action_suspend(surf_action_t action)
186 ((surf_action_network_Vivaldi_t) action)->suspended = 1;
189 static void netviva_action_resume(surf_action_t action)
191 if (((surf_action_network_Vivaldi_t) action)->suspended)
192 ((surf_action_network_Vivaldi_t) action)->suspended = 0;
195 static int netviva_action_is_suspended(surf_action_t action)
197 return ((surf_action_network_Vivaldi_t) action)->suspended;
200 static void netviva_action_set_max_duration(surf_action_t action,
203 action->max_duration = duration;
206 static void netviva_finalize(void)
208 surf_model_exit(surf_network_model);
209 surf_network_model = NULL;
212 static void netviva_parse_host(void)
214 netviva_coords_t coord = xbt_new(s_netviva_coords_t, 1);
216 xbt_dynar_t ctn = xbt_str_split_str(A_surfxml_host_vivaldi, " ");
218 coord->x = atof(xbt_dynar_get_as(ctn, 0, char *));
219 coord->y = atof(xbt_dynar_get_as(ctn, 1, char *));
220 coord->h = atof(xbt_dynar_get_as(ctn, 2, char *));
223 TRACE_surf_host_vivaldi_parse(A_surfxml_host_id, coord->x, coord->y,
227 xbt_dynar_free(&ctn);
228 xbt_dict_set(coords, A_surfxml_host_id, coord, NULL);
231 #ifdef HAVE_LATENCY_BOUND_TRACKING
232 static int netviva_get_latency_limited(surf_action_t action)
238 void surf_network_model_init_Vivaldi(const char *filename)
240 xbt_assert(surf_network_model == NULL);
241 if (surf_network_model)
243 surf_network_model = surf_model_init();
244 coords = xbt_dict_new();
247 surf_network_model->name = "Vivaldi time network";
248 surf_network_model->action_unref = netviva_action_unref;
249 surf_network_model->action_cancel = netviva_action_cancel;
250 surf_network_model->action_recycle = netviva_action_recycle;
251 surf_network_model->get_remains = netviva_action_get_remains;
252 #ifdef HAVE_LATENCY_BOUND_TRACKING
253 surf_network_model->get_latency_limited = netviva_get_latency_limited;
256 surf_network_model->model_private->resource_used = netviva_resource_used;
257 surf_network_model->model_private->share_resources =
258 netviva_share_resources;
259 surf_network_model->model_private->update_actions_state =
260 netviva_update_actions_state;
261 surf_network_model->model_private->update_resource_state =
262 netviva_update_resource_state;
263 surf_network_model->model_private->finalize = netviva_finalize;
265 surf_network_model->suspend = netviva_action_suspend;
266 surf_network_model->resume = netviva_action_resume;
267 surf_network_model->is_suspended = netviva_action_is_suspended;
268 surf_cpu_model->set_max_duration = netviva_action_set_max_duration;
270 surf_network_model->extension.network.communicate = netviva_communicate;
271 surf_network_model->extension.network.get_link_bandwidth =
272 netviva_get_link_bandwidth;
273 surf_network_model->extension.network.get_link_latency =
274 netviva_get_link_latency;
275 surf_network_model->extension.network.link_shared = netviva_link_shared;
277 if (!random_latency_viva)
278 random_latency_viva = random_new(RAND, 100, 0.0, 1.0, .125, .034);
279 netviva_define_callbacks(filename);
280 xbt_dynar_push(model_list, &surf_network_model);
282 /* Callbacks settings */
283 surfxml_add_callback(STag_surfxml_host_cb_list, &netviva_parse_host);
285 update_model_description(surf_network_model_description,
286 "Vivaldi", surf_network_model);
289 TRACE_user_host_variable(0, "vivaldi_x", 0, "declare");
290 TRACE_user_host_variable(0, "vivaldi_y", 0, "declare");
291 TRACE_user_host_variable(0, "vivaldi_h", 0, "declare");
294 xbt_cfg_set_string(_surf_cfg_set, "routing", "none");
295 routing_model_create(sizeof(double), NULL);