Logo AND Algorithmique Numérique Distribuée

Public GIT Repository
changes for solve warrings
[simgrid.git] / src / surf / network.c
1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
2  * All rights reserved.                                                     */
3
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. */
6
7 #include "network_private.h"
8 #include "xbt/log.h"
9 #include "xbt/str.h"
10
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
12                                 "Logging specific to the SURF network module");
13
14 surf_model_t surf_network_model = NULL;
15 static lmm_system_t network_maxmin_system = NULL;
16 static void (*network_solve) (lmm_system_t) = NULL;
17
18 double sg_latency_factor = 1.0;    /* default value; can be set by model or from command line */
19 double sg_bandwidth_factor = 1.0;  /* default value; can be set by model or from command line */
20 double sg_weight_S_parameter = 0.0;/* default value; can be set by model or from command line */
21
22 double sg_tcp_gamma = 0.0;
23 int sg_network_fullduplex = 0;
24
25
26 /******************************************************************************/
27 /*                           Factors callbacks                                */
28 /******************************************************************************/ 
29 static double constant_latency_factor(double size)
30 {
31   return sg_latency_factor;
32 }
33
34 static double constant_bandwidth_factor(double size)
35 {
36   return sg_bandwidth_factor;
37 }
38
39 static double constant_bandwidth_constraint(double rate, double bound, double size)
40 {
41   return rate;
42 }
43
44 /**********************/
45 /*   SMPI callbacks   */
46 /**********************/
47 static double smpi_latency_factor(double size)
48 {
49   /* 1 B <= size <= 1 KiB */
50   if (size <= 1024.0) {
51     return 1.0056;
52   }
53
54   /* 2 KiB <= size <= 32 KiB */
55   if (size <= 32768.0) {
56     return 1.8805;
57   }
58
59   /* 64 KiB <= size <= 4 MiB */
60   return 22.7111;
61 }
62
63 static double smpi_bandwidth_factor(double size)
64 {
65   /* 1 B <= size <= 1 KiB */
66   if (size <= 1024.0) {
67     return 0.2758;
68   }
69
70   /* 2 KiB <= size <= 32 KiB */
71   if (size <= 32768.0) {
72     return 0.5477;
73   }
74
75   /* 64 KiB <= size <= 4 MiB */
76   return 0.9359;
77 }
78
79 static double smpi_bandwidth_constraint(double rate, double bound, double size)
80 {
81   return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
82 }
83
84
85 static double (*latency_factor_callback)(double) = &constant_latency_factor;
86 static double (*bandwidth_factor_callback)(double) = &constant_bandwidth_factor;
87 static double (*bandwidth_constraint_callback)(double, double, double) = &constant_bandwidth_constraint;
88
89
90 static link_CM02_t net_link_new(char *name,
91                             double bw_initial,
92                             tmgr_trace_t bw_trace,
93                             double lat_initial,
94                             tmgr_trace_t lat_trace,
95                             e_surf_resource_state_t
96                             state_initial,
97                             tmgr_trace_t state_trace,
98                             e_surf_link_sharing_policy_t
99                             policy, xbt_dict_t properties)
100 {
101   link_CM02_t nw_link = (link_CM02_t)
102     surf_resource_lmm_new(sizeof(s_link_CM02_t),
103                           surf_network_model, name, properties,
104                           network_maxmin_system,
105                           sg_bandwidth_factor * bw_initial,
106                           history,
107                           state_initial, state_trace,
108                           bw_initial, bw_trace);
109
110   xbt_assert1(!xbt_dict_get_or_null(surf_network_model->resource_set, name),
111               "Link '%s' declared several times in the platform file.", name);
112
113   nw_link->lat_current = lat_initial;
114   if (lat_trace)
115     nw_link->lat_event =
116       tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
117
118   if (policy == SURF_LINK_FATPIPE)
119     lmm_constraint_shared(nw_link->lmm_resource.constraint);
120
121   xbt_dict_set(surf_network_model->resource_set, name, nw_link,
122                surf_resource_free);
123 #ifdef HAVE_TRACING
124   TRACE_surf_link_declaration (name, bw_initial, lat_initial);
125 #endif
126
127   return nw_link;
128 }
129
130 static void net_parse_link_init(void)
131 {
132   char *name_link;
133   double bw_initial;
134   tmgr_trace_t bw_trace;
135   double lat_initial;
136   tmgr_trace_t lat_trace;
137   e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
138   e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
139   tmgr_trace_t state_trace;
140
141   name_link = xbt_strdup(A_surfxml_link_id);
142   surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
143   bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
144   surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
145   lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
146
147   xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
148               || (A_surfxml_link_state ==
149                   A_surfxml_link_state_OFF), "Invalid state");
150   if (A_surfxml_link_state == A_surfxml_link_state_ON)
151     state_initial_link = SURF_RESOURCE_ON;
152   else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
153     state_initial_link = SURF_RESOURCE_OFF;
154
155   if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
156     policy_initial_link = SURF_LINK_SHARED;
157   else if (A_surfxml_link_sharing_policy ==
158            A_surfxml_link_sharing_policy_FATPIPE)
159     policy_initial_link = SURF_LINK_FATPIPE;
160
161   state_trace = tmgr_trace_new(A_surfxml_link_state_file);
162
163   net_link_new(name_link, bw_initial, bw_trace,
164            lat_initial, lat_trace, state_initial_link, state_trace,
165            policy_initial_link, xbt_dict_new());
166
167 }
168
169 static void net_create_resource(char *name,
170         double bw_initial,
171         tmgr_trace_t bw_trace,
172         double lat_initial,
173         tmgr_trace_t lat_trace,
174         e_surf_resource_state_t
175         state_initial,
176         tmgr_trace_t state_trace,
177         e_surf_link_sharing_policy_t policy,
178         xbt_dict_t properties)
179 {
180         net_link_new(name, bw_initial, bw_trace,
181                    lat_initial, lat_trace, state_initial, state_trace,
182                    policy, xbt_dict_new());
183 }
184 static void net_add_traces(void)
185 {
186   xbt_dict_cursor_t cursor = NULL;
187   char *trace_name, *elm;
188
189   static int called = 0;
190   if (called)
191     return;
192   called = 1;
193
194   /* connect all traces relative to network */
195   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
196     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
197     link_CM02_t link =
198       xbt_dict_get_or_null(surf_network_model->resource_set, elm);
199
200     xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
201                 trace_name, elm);
202     xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
203                 trace_name, elm);
204
205     link->lmm_resource.state_event =
206       tmgr_history_add_trace(history, trace, 0.0, 0, link);
207   }
208
209   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
210     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
211     link_CM02_t link =
212       xbt_dict_get_or_null(surf_network_model->resource_set, elm);
213
214     xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
215                 trace_name, elm);
216     xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
217                 trace_name, elm);
218
219     link->lmm_resource.power.event =
220       tmgr_history_add_trace(history, trace, 0.0, 0, link);
221   }
222
223   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
224     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
225     link_CM02_t link =
226       xbt_dict_get_or_null(surf_network_model->resource_set, elm);
227
228     xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
229                 trace_name, elm);
230     xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
231                 trace_name, elm);
232
233     link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
234   }
235 }
236
237 static void net_define_callbacks(const char *file)
238 {
239   /* Figuring out the network links */
240   surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
241   surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
242 }
243
244 static int net_resource_used(void *resource_id)
245 {
246   return lmm_constraint_used(network_maxmin_system,
247                              ((surf_resource_lmm_t) resource_id)->constraint);
248 }
249
250 static int net_action_unref(surf_action_t action)
251 {
252   action->refcount--;
253   if (!action->refcount) {
254     xbt_swag_remove(action, action->state_set);
255     if (((surf_action_network_CM02_t) action)->variable)
256       lmm_variable_free(network_maxmin_system,
257                         ((surf_action_network_CM02_t) action)->variable);
258     free(action);
259     return 1;
260   }
261   return 0;
262 }
263
264 static void net_action_cancel(surf_action_t action)
265 {
266   surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
267 }
268
269 void net_action_recycle(surf_action_t action)
270 {
271   return;
272 }
273
274 int net_get_link_latency(surf_action_t action)
275 {
276   return action->latency_limited;
277 }
278
279 double net_action_get_remains(surf_action_t action)
280 {
281   return action->remains;
282 }
283
284 static double net_share_resources(double now)
285 {
286   s_surf_action_network_CM02_t s_action;
287   surf_action_network_CM02_t action = NULL;
288   xbt_swag_t running_actions = surf_network_model->states.running_action_set;
289   double min;
290
291   min = generic_maxmin_share_resources(running_actions,
292                                        xbt_swag_offset(s_action,
293                                                        variable),
294                                        network_maxmin_system, network_solve);
295
296 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable)  )))
297
298   xbt_swag_foreach(action, running_actions) {
299         if( lmm_is_variable_limited_by_latency(action->variable) ){
300                 (action->generic_action).latency_limited = 1;
301         }else{
302                 (action->generic_action).latency_limited = 0;
303         }
304     if (action->latency > 0) {
305       if (min < 0)
306         min = action->latency;
307       else if (action->latency < min)
308         min = action->latency;
309     }
310   }
311
312   return min;
313 }
314
315 static void net_update_actions_state(double now, double delta)
316 {
317   double deltap = 0.0;
318   surf_action_network_CM02_t action = NULL;
319   surf_action_network_CM02_t next_action = NULL;
320   xbt_swag_t running_actions = surf_network_model->states.running_action_set;
321   /*
322      xbt_swag_t failed_actions =
323      surf_network_model->states.failed_action_set;
324    */
325
326   xbt_swag_foreach_safe(action, next_action, running_actions) {
327     deltap = delta;
328     if (action->latency > 0) {
329       if (action->latency > deltap) {
330         double_update(&(action->latency), deltap);
331         deltap = 0.0;
332       } else {
333         double_update(&(deltap), action->latency);
334         action->latency = 0.0;
335       }
336       if ((action->latency == 0.0) && !(action->suspended))
337         lmm_update_variable_weight(network_maxmin_system, action->variable,
338                                    action->weight);
339     }
340 #ifdef HAVE_TRACING
341     xbt_dynar_t route = used_routing->get_route(action->src, action->dst);
342     link_CM02_t link;
343     unsigned int i;
344     xbt_dynar_foreach(route, i, link) {
345       TRACE_surf_link_set_utilization (link->lmm_resource.generic_resource.name,
346           action->generic_action.data, lmm_variable_getvalue(action->variable), now-delta, delta);
347     }
348 #endif
349     double_update(&(action->generic_action.remains),
350                   lmm_variable_getvalue(action->variable) * deltap);
351     if (action->generic_action.max_duration != NO_MAX_DURATION)
352       double_update(&(action->generic_action.max_duration), delta);
353
354     if ((action->generic_action.remains <= 0) &&
355         (lmm_get_variable_weight(action->variable) > 0)) {
356       action->generic_action.finish = surf_get_clock();
357       surf_network_model->action_state_set((surf_action_t) action,
358                                            SURF_ACTION_DONE);
359     } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
360                && (action->generic_action.max_duration <= 0)) {
361       action->generic_action.finish = surf_get_clock();
362       surf_network_model->action_state_set((surf_action_t) action,
363                                            SURF_ACTION_DONE);
364     }
365   }
366
367   return;
368 }
369
370 static void net_update_resource_state(void *id,
371                                   tmgr_trace_event_t event_type,
372                                   double value, double date)
373 {
374   link_CM02_t nw_link = id;
375   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
376   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
377   /*     value, event_type); */
378
379   if (event_type == nw_link->lmm_resource.power.event) {
380     double delta =
381       sg_weight_S_parameter / value - sg_weight_S_parameter /
382       (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale);
383     lmm_variable_t var = NULL;
384     lmm_element_t elem = NULL;
385     surf_action_network_CM02_t action = NULL;
386
387     nw_link->lmm_resource.power.peak = value;
388     lmm_update_constraint_bound(network_maxmin_system,
389                                 nw_link->lmm_resource.constraint,
390                                 sg_bandwidth_factor *
391                                 (nw_link->lmm_resource.power.peak *
392                                  nw_link->lmm_resource.power.scale));
393 #ifdef HAVE_TRACING
394     TRACE_surf_link_set_bandwidth (date, nw_link->lmm_resource.generic_resource.name, sg_bandwidth_factor * (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale));
395 #endif
396     if (sg_weight_S_parameter > 0) {
397       while ((var = lmm_get_var_from_cnst
398               (network_maxmin_system, nw_link->lmm_resource.constraint,
399                &elem))) {
400         action = lmm_variable_id(var);
401         action->weight += delta;
402         if (!(action->suspended))
403           lmm_update_variable_weight(network_maxmin_system, action->variable,
404                                      action->weight);
405       }
406     }
407     if (tmgr_trace_event_free(event_type))
408       nw_link->lmm_resource.power.event = NULL;
409   } else if (event_type == nw_link->lat_event) {
410     double delta = value - nw_link->lat_current;
411     lmm_variable_t var = NULL;
412     lmm_element_t elem = NULL;
413     surf_action_network_CM02_t action = NULL;
414
415     nw_link->lat_current = value;
416     while ((var = lmm_get_var_from_cnst
417             (network_maxmin_system, nw_link->lmm_resource.constraint,
418              &elem))) {
419       action = lmm_variable_id(var);
420       action->lat_current += delta;
421       action->weight += delta;
422       if (action->rate < 0)
423         lmm_update_variable_bound(network_maxmin_system, action->variable,
424                                   sg_tcp_gamma / (2.0 * action->lat_current));
425       else{
426         lmm_update_variable_bound(network_maxmin_system, action->variable,
427                                   min(action->rate,
428                                       sg_tcp_gamma / (2.0 *
429                                                       action->lat_current)));
430
431         if(action->rate < sg_tcp_gamma / (2.0 * action->lat_current) ){
432                 INFO0("Flow is limited BYBANDWIDTH");
433         }else{
434                 INFO1("Flow is limited BYLATENCY, latency of flow is %f",action->lat_current);
435         }
436       }
437       if (!(action->suspended))
438         lmm_update_variable_weight(network_maxmin_system, action->variable,
439                                    action->weight);
440
441     }
442     if (tmgr_trace_event_free(event_type))
443       nw_link->lat_event = NULL;
444   } else if (event_type == nw_link->lmm_resource.state_event) {
445     if (value > 0)
446       nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
447     else {
448       lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
449       lmm_variable_t var = NULL;
450       lmm_element_t elem = NULL;
451
452       nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
453       while ((var = lmm_get_var_from_cnst
454               (network_maxmin_system, cnst, &elem))) {
455         surf_action_t action = lmm_variable_id(var);
456
457         if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
458             surf_action_state_get(action) == SURF_ACTION_READY) {
459           action->finish = date;
460           surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
461         }
462       }
463     }
464     if (tmgr_trace_event_free(event_type))
465       nw_link->lmm_resource.state_event = NULL;
466   } else {
467     CRITICAL0("Unknown event ! \n");
468     xbt_abort();
469   }
470
471   return;
472 }
473
474
475 static surf_action_t net_communicate(const char *src_name, const char *dst_name,
476                                  int src, int dst, double size, double rate)
477 {
478   unsigned int i;
479   link_CM02_t link;
480   int failed = 0;
481   surf_action_network_CM02_t action = NULL;
482   double bandwidth_bound;
483   /* LARGE PLATFORMS HACK:
484      Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
485      Use the cluster_id for ->id */
486   xbt_dynar_t route = used_routing->get_route(src, dst);
487   xbt_dynar_t back_route = NULL;
488   int constraints_per_variable = 0;
489
490   if( sg_network_fullduplex == 1){
491           back_route = used_routing->get_route(dst, src);
492   }
493
494   /* LARGE PLATFORMS HACK:
495      total_route_size = route_size + src->link_nb + dst->nb */
496
497   XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
498   /* LARGE PLATFORMS HACK:
499      assert on total_route_size */
500   xbt_assert2(xbt_dynar_length(route),
501               "You're trying to send data from %s to %s but there is no connection between these two hosts.",
502               src_name, dst_name);
503
504   xbt_dynar_foreach(route, i, link) {
505     if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
506       failed = 1;
507       break;
508     }
509   }
510   action =
511     surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
512                     surf_network_model, failed);
513   (action->generic_action).latency_limited = 0;
514
515   xbt_swag_insert(action, action->generic_action.state_set);
516   action->rate = rate;
517
518   action->latency = 0.0;
519   action->weight = 0.0;
520   bandwidth_bound = -1.0;
521   xbt_dynar_foreach(route, i, link) {
522     action->latency += link->lat_current;
523     action->weight +=
524       link->lat_current +
525       sg_weight_S_parameter /
526       (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
527     if(bandwidth_bound < 0.0)
528       bandwidth_bound = (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
529     else
530       bandwidth_bound = min(bandwidth_bound, (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale));
531   }
532   /* LARGE PLATFORMS HACK:
533      Add src->link and dst->link latencies */
534   action->lat_current = action->latency;
535   action->latency *= (*latency_factor_callback)(size);
536   action->rate = (*bandwidth_constraint_callback)(action->rate, bandwidth_bound, size);
537
538   /* LARGE PLATFORMS HACK:
539      lmm_variable_new(..., total_route_size) */
540   if(back_route != NULL){
541           constraints_per_variable = xbt_dynar_length(route)+xbt_dynar_length(back_route);
542   }else{
543           constraints_per_variable = xbt_dynar_length(route);
544   }
545
546   if (action->latency > 0)
547     action->variable =
548       lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,constraints_per_variable);
549   else
550     action->variable =
551       lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,constraints_per_variable);
552
553   if (action->rate < 0) {
554     if (action->lat_current > 0)
555       lmm_update_variable_bound(network_maxmin_system, action->variable,
556                                 sg_tcp_gamma / (2.0 * action->lat_current));
557     else
558       lmm_update_variable_bound(network_maxmin_system, action->variable,
559                                 -1.0);
560   } else {
561     if (action->lat_current > 0)
562       lmm_update_variable_bound(network_maxmin_system, action->variable,
563                                 min(action->rate,
564                                     sg_tcp_gamma / (2.0 *
565                                                     action->lat_current)));
566     else
567       lmm_update_variable_bound(network_maxmin_system, action->variable,
568                                 action->rate);
569   }
570
571   xbt_dynar_foreach(route, i, link) {
572     lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
573                action->variable, 1.0);
574   }
575
576   if( sg_network_fullduplex == 1){
577           DEBUG1("Fullduplex active adding backward flow using 5%c", '%');
578           xbt_dynar_foreach(back_route, i, link) {
579                   lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
580                action->variable, .05);
581           }
582   }  /* LARGE PLATFORMS HACK:
583      expand also with src->link and dst->link */
584
585   /* saving the src and dst of this communication */
586   action->src = src;
587   action->dst = dst;
588
589   XBT_OUT;
590
591   return (surf_action_t) action;
592 }
593
594 static double net_get_link_bandwidth(const void *link)
595 {
596   surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
597   return lmm->power.peak * lmm->power.scale;
598 }
599
600 static int net_link_shared(const void *link)
601 {
602   return lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
603 }
604
605 static void net_action_suspend(surf_action_t action)
606 {
607   ((surf_action_network_CM02_t) action)->suspended = 1;
608   lmm_update_variable_weight(network_maxmin_system,
609                              ((surf_action_network_CM02_t) action)->variable,
610                              0.0);
611 }
612
613 static void net_action_resume(surf_action_t action)
614 {
615   if (((surf_action_network_CM02_t) action)->suspended) {
616     lmm_update_variable_weight(network_maxmin_system,
617                                ((surf_action_network_CM02_t)
618                                 action)->variable,
619                                ((surf_action_network_CM02_t) action)->weight);
620     ((surf_action_network_CM02_t) action)->suspended = 0;
621   }
622 }
623
624 static int net_action_is_suspended(surf_action_t action)
625 {
626   return ((surf_action_network_CM02_t) action)->suspended;
627 }
628
629 void net_action_set_max_duration(surf_action_t action, double duration)
630 {
631   action->max_duration = duration;
632 }
633
634 static void net_finalize(void)
635 {
636   surf_model_exit(surf_network_model);
637   surf_network_model = NULL;
638
639   used_routing->finalize();
640   lmm_system_free(network_maxmin_system);
641   network_maxmin_system = NULL;
642 }
643
644 static void surf_network_model_init_internal(void)
645 {
646   surf_network_model = surf_model_init();
647
648   surf_network_model->name = "network";
649   surf_network_model->action_unref = net_action_unref;
650   surf_network_model->action_cancel = net_action_cancel;
651   surf_network_model->action_recycle = net_action_recycle;
652   surf_network_model->get_remains = net_action_get_remains;
653   surf_network_model->get_latency_limited = net_get_link_latency;
654
655   surf_network_model->model_private->resource_used = net_resource_used;
656   surf_network_model->model_private->share_resources = net_share_resources;
657   surf_network_model->model_private->update_actions_state =
658     net_update_actions_state;
659   surf_network_model->model_private->update_resource_state =
660     net_update_resource_state;
661   surf_network_model->model_private->finalize = net_finalize;
662
663   surf_network_model->suspend = net_action_suspend;
664   surf_network_model->resume = net_action_resume;
665   surf_network_model->is_suspended = net_action_is_suspended;
666   surf_cpu_model->set_max_duration = net_action_set_max_duration;
667
668   surf_network_model->extension.network.communicate = net_communicate;
669   surf_network_model->extension.network.get_link_bandwidth =
670     net_get_link_bandwidth;
671   surf_network_model->extension.network.link_shared = net_link_shared;
672   surf_network_model->extension.network.add_traces = net_add_traces;
673   surf_network_model->extension.network.create_resource = net_create_resource;
674
675   if (!network_maxmin_system)
676     network_maxmin_system = lmm_system_new();
677
678   routing_model_create(sizeof(link_CM02_t),
679                        net_link_new(xbt_strdup("__loopback__"),
680                                 498000000, NULL, 0.000015, NULL,
681                                 SURF_RESOURCE_ON, NULL, SURF_LINK_FATPIPE,
682                                 NULL));
683 }
684
685
686
687 /************************************************************************/
688 /* New model based on LV08 and experimental results of MPI ping-pongs   */
689 /************************************************************************/
690 void surf_network_model_init_SMPI(const char *filename)
691 {
692
693   if (surf_network_model)
694     return;
695   surf_network_model_init_internal();
696   latency_factor_callback = &smpi_latency_factor;
697   bandwidth_factor_callback = &smpi_bandwidth_factor;
698   bandwidth_constraint_callback = &smpi_bandwidth_constraint;
699   net_define_callbacks(filename);
700   xbt_dynar_push(model_list, &surf_network_model);
701   network_solve = lmm_solve;
702
703   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
704
705   update_model_description(surf_network_model_description,
706                            "SMPI", surf_network_model);
707 }
708
709 /************************************************************************/
710 /* New model based on optimizations discussed during this thesis        */
711 /************************************************************************/
712 void surf_network_model_init_LegrandVelho(const char *filename)
713 {
714
715   if (surf_network_model)
716     return;
717   surf_network_model_init_internal();
718   net_define_callbacks(filename);
719   xbt_dynar_push(model_list, &surf_network_model);
720   network_solve = lmm_solve;
721
722   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor",10.4);
723   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
724   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
725
726   update_model_description(surf_network_model_description,
727                            "LV08", surf_network_model);
728 }
729
730 /***************************************************************************/
731 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
732 /***************************************************************************/
733 /* @TechReport{      rr-lip2002-40, */
734 /*   author        = {Henri Casanova and Loris Marchal}, */
735 /*   institution   = {LIP}, */
736 /*   title         = {A Network Model for Simulation of Grid Application}, */
737 /*   number        = {2002-40}, */
738 /*   month         = {oct}, */
739 /*   year          = {2002} */
740 /* } */
741 void surf_network_model_init_CM02(const char *filename)
742 {
743
744   if (surf_network_model)
745     return;
746   surf_network_model_init_internal();
747   net_define_callbacks(filename);
748   xbt_dynar_push(model_list, &surf_network_model);
749   network_solve = lmm_solve;
750
751   update_model_description(surf_network_model_description,
752                            "CM02", surf_network_model);
753 }
754
755 void surf_network_model_init_Reno(const char *filename)
756 {
757   if (surf_network_model)
758     return;
759   surf_network_model_init_internal();
760   net_define_callbacks(filename);
761
762   xbt_dynar_push(model_list, &surf_network_model);
763   lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
764   network_solve = lagrange_solve;
765
766   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
767   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
768   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
769
770   update_model_description(surf_network_model_description,
771                            "Reno", surf_network_model);
772 }
773
774
775 void surf_network_model_init_Reno2(const char *filename)
776 {
777   if (surf_network_model)
778     return;
779   surf_network_model_init_internal();
780   net_define_callbacks(filename);
781
782   xbt_dynar_push(model_list, &surf_network_model);
783   lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
784                                     func_reno2_fpi);
785   network_solve = lagrange_solve;
786
787   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
788   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
789   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S_parameter", 8775);
790
791   update_model_description(surf_network_model_description,
792                            "Reno2", surf_network_model);
793 }
794
795 void surf_network_model_init_Vegas(const char *filename)
796 {
797   if (surf_network_model)
798     return;
799   surf_network_model_init_internal();
800   net_define_callbacks(filename);
801
802   xbt_dynar_push(model_list, &surf_network_model);
803   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
804                                     func_vegas_fpi);
805   network_solve = lagrange_solve;
806
807   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
808   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
809   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
810
811   update_model_description(surf_network_model_description,
812                            "Vegas", surf_network_model);
813 }
814
815