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 = NULL;
27 static int host_number_int = 0;
29 static void netviva_count_hosts(void)
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) {
40 /* nothing to do here */
44 static int netviva_action_unref(surf_action_t action)
47 if (!action->refcount) {
48 xbt_swag_remove(action, action->state_set);
55 static void netviva_action_cancel(surf_action_t action)
60 static void netviva_action_recycle(surf_action_t action)
65 static double netviva_action_get_remains(surf_action_t action)
67 return action->remains;
70 /* look for the next event to finish */
71 static double netviva_share_resources(double now)
73 surf_action_network_Vivaldi_t action = NULL;
74 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
77 xbt_swag_foreach(action, running_actions) {
78 if (action->latency > 0) {
80 min = action->latency;
81 else if (action->latency < min)
82 min = action->latency;
89 static void netviva_update_actions_state(double now, double delta) {
90 /* Advance the actions by delta seconds */
91 surf_action_network_Vivaldi_t action = NULL;
92 surf_action_network_Vivaldi_t next_action = NULL;
93 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
95 xbt_swag_foreach_safe(action, next_action, running_actions) {
96 if (action->latency > 0) {
97 if (action->latency > delta) {
98 double_update(&(action->latency), delta);
100 action->latency = 0.0;
103 double_update(&(action->generic_action.remains),
104 action->generic_action.cost * delta / action->lat_init);
105 if (action->generic_action.max_duration != NO_MAX_DURATION)
106 double_update(&(action->generic_action.max_duration), delta);
108 if (action->generic_action.remains <= 0) { /* This action is done, inform SURF about it */
109 action->generic_action.finish = surf_get_clock();
110 surf_network_model->action_state_set((surf_action_t) action,
112 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
113 && (action->generic_action.max_duration <= 0)) {
114 action->generic_action.finish = surf_get_clock();
115 surf_network_model->action_state_set((surf_action_t) action,
121 static void netviva_update_resource_state(void *id,
122 tmgr_trace_event_t event_type,
123 double value, double time)
124 { /* Called as soon as there is a trace modification */
128 static surf_action_t netviva_communicate(const char *src_name, const char *dst_name,
129 int src, int dst, double size, double rate)
131 netviva_coords_t c1,c2;
132 c1 = xbt_dict_get(coords,src_name);
133 c2 = xbt_dict_get(coords,dst_name);
135 surf_action_network_Vivaldi_t action = NULL;
138 surf_action_new(sizeof(s_surf_action_network_Vivaldi_t), size,
139 surf_network_model, 0);
141 action->suspended = 0;
143 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);
144 action->lat_init = action->latency;
146 if (action->latency <= 0.0) {
147 action->generic_action.state_set =
148 surf_network_model->states.done_action_set;
149 xbt_swag_insert(action, action->generic_action.state_set);
152 return (surf_action_t) action;
155 /* returns an array of link_Vivaldi_t */
156 static xbt_dynar_t netviva_get_route(void *src, void *dst)
158 xbt_die("Calling this function does not make any sense");
161 static double netviva_get_link_bandwidth(const void *link)
166 static double netviva_get_link_latency(const void *link)
171 static int link_shared(const void *link)
176 static void netviva_action_suspend(surf_action_t action)
178 ((surf_action_network_Vivaldi_t) action)->suspended = 1;
181 static void netviva_action_resume(surf_action_t action)
183 if (((surf_action_network_Vivaldi_t) action)->suspended)
184 ((surf_action_network_Vivaldi_t) action)->suspended = 0;
187 static int netviva_action_is_suspended(surf_action_t action)
189 return ((surf_action_network_Vivaldi_t) action)->suspended;
192 static void netviva_action_set_max_duration(surf_action_t action, double duration)
194 action->max_duration = duration;
197 static void netviva_finalize(void)
199 surf_model_exit(surf_network_model);
200 surf_network_model = NULL;
204 static void net_define_callbacks(const char *file)
206 /* Figuring out the network links */
209 static void netviva_parse_host(void) {
210 netviva_coords_t coord = xbt_new(s_netviva_coords_t,1);
212 xbt_dynar_t ctn =xbt_str_split_str(A_surfxml_host_vivaldi," ");
214 coord->x = atof(xbt_dynar_get_as(ctn, 0, char*));
215 coord->y = atof(xbt_dynar_get_as(ctn, 1, char*));
216 coord->h = atof(xbt_dynar_get_as(ctn, 2, char*));
219 TRACE_surf_host_vivaldi_parse (A_surfxml_host_id, coord->x, coord->y, coord->h);
222 xbt_dynar_free(&ctn);
223 xbt_dict_set(coords, A_surfxml_host_id,coord,NULL);
226 void surf_network_model_init_Vivaldi(const char *filename)
228 xbt_assert(surf_network_model == NULL);
229 if (surf_network_model)
231 surf_network_model = surf_model_init();
232 coords = xbt_dict_new();
235 surf_network_model->name = "Vivaldi time network";
236 surf_network_model->action_unref = netviva_action_unref;
237 surf_network_model->action_cancel = netviva_action_cancel;
238 surf_network_model->action_recycle = netviva_action_recycle;
239 surf_network_model->get_remains = netviva_action_get_remains;
241 surf_network_model->model_private->resource_used = netviva_resource_used;
242 surf_network_model->model_private->share_resources = netviva_share_resources;
243 surf_network_model->model_private->update_actions_state =
244 netviva_update_actions_state;
245 surf_network_model->model_private->update_resource_state =
246 netviva_update_resource_state;
247 surf_network_model->model_private->finalize = netviva_finalize;
249 surf_network_model->suspend = netviva_action_suspend;
250 surf_network_model->resume = netviva_action_resume;
251 surf_network_model->is_suspended = netviva_action_is_suspended;
252 surf_cpu_model->set_max_duration = netviva_action_set_max_duration;
254 surf_network_model->extension.network.communicate = netviva_communicate;
255 surf_network_model->extension.network.get_link_bandwidth =
256 netviva_get_link_bandwidth;
257 surf_network_model->extension.network.get_link_latency = netviva_get_link_latency;
258 surf_network_model->extension.network.link_shared = link_shared;
261 random_latency = random_new(RAND, 100, 0.0, 1.0, .125, .034);
262 netviva_define_callbacks(filename);
263 xbt_dynar_push(model_list, &surf_network_model);
265 /* Callbacks settings */
266 surfxml_add_callback(STag_surfxml_host_cb_list, &netviva_parse_host);
268 update_model_description(surf_network_model_description,
269 "Vivaldi", surf_network_model);
272 __TRACE_host_variable(0,"vivaldi_x",0,"declare");
273 __TRACE_host_variable(0,"vivaldi_y",0,"declare");
274 __TRACE_host_variable(0,"vivaldi_h",0,"declare");
277 xbt_cfg_set_string(_surf_cfg_set, "routing", "none");
278 routing_model_create(sizeof(double), NULL);