1 /* Copyright (c) 2008, 2009, 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_Constant {
14 s_surf_action_t generic_action;
18 } s_surf_action_network_Constant_t, *surf_action_network_Constant_t;
20 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
21 static random_data_t random_latency = NULL;
22 static int host_number_int = 0;
24 static void netcste_count_hosts(sg_platf_host_cbarg_t h) {
28 static void netcste_define_callbacks(void) {
29 sg_platf_host_add_cb(netcste_count_hosts);
32 static int netcste_resource_used(void *resource_id)
37 static int netcste_action_unref(surf_action_t action)
40 if (!action->refcount) {
41 xbt_swag_remove(action, action->state_set);
42 surf_action_free(&action);
48 static void netcste_action_cancel(surf_action_t action)
53 static double netcste_share_resources(double now)
55 surf_action_network_Constant_t action = NULL;
56 xbt_swag_t running_actions =
57 surf_network_model->states.running_action_set;
60 xbt_swag_foreach(action, running_actions) {
61 if (action->latency > 0) {
63 min = action->latency;
64 else if (action->latency < min)
65 min = action->latency;
72 static void netcste_update_actions_state(double now, double delta)
74 surf_action_network_Constant_t action = NULL;
75 surf_action_network_Constant_t next_action = NULL;
76 xbt_swag_t running_actions =
77 surf_network_model->states.running_action_set;
79 xbt_swag_foreach_safe(action, next_action, running_actions) {
80 if (action->latency > 0) {
81 if (action->latency > delta) {
82 double_update(&(action->latency), delta);
84 action->latency = 0.0;
87 double_update(&(action->generic_action.remains),
88 action->generic_action.cost * delta / action->lat_init);
89 if (action->generic_action.max_duration != NO_MAX_DURATION)
90 double_update(&(action->generic_action.max_duration), delta);
92 if (action->generic_action.remains <= 0) {
93 action->generic_action.finish = surf_get_clock();
94 surf_network_model->action_state_set((surf_action_t) action,
96 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
97 && (action->generic_action.max_duration <= 0)) {
98 action->generic_action.finish = surf_get_clock();
99 surf_network_model->action_state_set((surf_action_t) action,
105 static void netcste_update_resource_state(void *id,
106 tmgr_trace_event_t event_type,
107 double value, double time)
112 static surf_action_t netcste_communicate(sg_routing_edge_t src,
113 sg_routing_edge_t dst,
114 double size, double rate)
116 surf_action_network_Constant_t action = NULL;
118 char *src_name = src->name;
119 char *dst_name = dst->name;
121 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
124 surf_action_new(sizeof(s_surf_action_network_Constant_t), size,
125 surf_network_model, 0);
127 action->suspended = 0;
129 action->latency = sg_latency_factor; //random_generate(random_latency);
130 action->lat_init = action->latency;
132 if (action->latency <= 0.0) {
133 action->generic_action.state_set =
134 surf_network_model->states.done_action_set;
135 xbt_swag_insert(action, action->generic_action.state_set);
140 return (surf_action_t) action;
144 static void netcste_action_set_category(surf_action_t action, const char *category)
146 //ignore completely the categories in constant model, they are not traced
150 static double netcste_get_link_bandwidth(const void *link)
156 static double netcste_get_link_latency(const void *link)
162 static int link_shared(const void *link)
168 static void netcste_action_suspend(surf_action_t action)
170 ((surf_action_network_Constant_t) action)->suspended = 1;
173 static void netcste_action_resume(surf_action_t action)
175 if (((surf_action_network_Constant_t) action)->suspended)
176 ((surf_action_network_Constant_t) action)->suspended = 0;
179 static int netcste_action_is_suspended(surf_action_t action)
181 return ((surf_action_network_Constant_t) action)->suspended;
184 static void netcste_finalize(void)
186 surf_model_exit(surf_network_model);
187 surf_network_model = NULL;
192 void surf_network_model_init_Constant()
194 xbt_assert(surf_network_model == NULL);
195 if (surf_network_model)
197 surf_network_model = surf_model_init();
199 surf_network_model->name = "constant time network";
200 surf_network_model->action_unref = netcste_action_unref;
201 surf_network_model->action_cancel = netcste_action_cancel;
202 surf_network_model->action_recycle = net_action_recycle;
203 surf_network_model->get_remains = surf_action_get_remains;
204 #ifdef HAVE_LATENCY_BOUND_TRACKING
205 surf_network_model->get_latency_limited = net_get_link_latency_limited;
208 surf_network_model->model_private->resource_used = netcste_resource_used;
209 surf_network_model->model_private->share_resources =
210 netcste_share_resources;
211 surf_network_model->model_private->update_actions_state =
212 netcste_update_actions_state;
213 surf_network_model->model_private->update_resource_state =
214 netcste_update_resource_state;
215 surf_network_model->model_private->finalize = netcste_finalize;
217 surf_network_model->suspend = netcste_action_suspend;
218 surf_network_model->resume = netcste_action_resume;
219 surf_network_model->is_suspended = netcste_action_is_suspended;
220 surf_cpu_model->set_max_duration = surf_action_set_max_duration;
222 surf_network_model->extension.network.communicate = netcste_communicate;
223 surf_network_model->extension.network.get_link_bandwidth =
224 netcste_get_link_bandwidth;
225 surf_network_model->extension.network.get_link_latency =
226 netcste_get_link_latency;
227 surf_network_model->extension.network.link_shared = link_shared;
229 surf_network_model->set_category = netcste_action_set_category;
233 random_latency = random_new(RAND, 100, 0.0, 1.0, .125, .034);
234 netcste_define_callbacks();
235 xbt_dynar_push(model_list, &surf_network_model);
237 routing_model_create(NULL);