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Remove stupid "if" that prevents from displaying the help correctly and use die inste...
[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_add_traces(void)
170 {
171   xbt_dict_cursor_t cursor = NULL;
172   char *trace_name, *elm;
173
174   static int called = 0;
175   if (called)
176     return;
177   called = 1;
178
179   /* connect all traces relative to network */
180   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
181     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
182     link_CM02_t link =
183       xbt_dict_get_or_null(surf_network_model->resource_set, elm);
184
185     xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
186                 trace_name, elm);
187     xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
188                 trace_name, elm);
189
190     link->lmm_resource.state_event =
191       tmgr_history_add_trace(history, trace, 0.0, 0, link);
192   }
193
194   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
195     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
196     link_CM02_t link =
197       xbt_dict_get_or_null(surf_network_model->resource_set, elm);
198
199     xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
200                 trace_name, elm);
201     xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
202                 trace_name, elm);
203
204     link->lmm_resource.power.event =
205       tmgr_history_add_trace(history, trace, 0.0, 0, link);
206   }
207
208   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
209     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
210     link_CM02_t link =
211       xbt_dict_get_or_null(surf_network_model->resource_set, elm);
212
213     xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
214                 trace_name, elm);
215     xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
216                 trace_name, elm);
217
218     link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
219   }
220 }
221
222 static void net_define_callbacks(const char *file)
223 {
224   /* Figuring out the network links */
225   surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
226   surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
227 }
228
229 static int net_resource_used(void *resource_id)
230 {
231   return lmm_constraint_used(network_maxmin_system,
232                              ((surf_resource_lmm_t) resource_id)->constraint);
233 }
234
235 static int net_action_unref(surf_action_t action)
236 {
237   action->refcount--;
238   if (!action->refcount) {
239     xbt_swag_remove(action, action->state_set);
240     if (((surf_action_network_CM02_t) action)->variable)
241       lmm_variable_free(network_maxmin_system,
242                         ((surf_action_network_CM02_t) action)->variable);
243     free(action);
244     return 1;
245   }
246   return 0;
247 }
248
249 static void net_action_cancel(surf_action_t action)
250 {
251   surf_network_model->action_state_set((surf_action_t) action,
252                                        SURF_ACTION_FAILED);
253   return;
254 }
255
256 static void net_action_recycle(surf_action_t action)
257 {
258   return;
259 }
260
261 static int net_get_link_latency(surf_action_t action)
262 {
263   return action->latency_limited;
264 }
265
266 static double net_action_get_remains(surf_action_t action)
267 {
268   return action->remains;
269 }
270
271 static double net_share_resources(double now)
272 {
273   s_surf_action_network_CM02_t s_action;
274   surf_action_network_CM02_t action = NULL;
275   xbt_swag_t running_actions = surf_network_model->states.running_action_set;
276   double min;
277
278   min = generic_maxmin_share_resources(running_actions,
279                                        xbt_swag_offset(s_action,
280                                                        variable),
281                                        network_maxmin_system, network_solve);
282
283 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable)  )))
284
285   xbt_swag_foreach(action, running_actions) {
286         if( lmm_is_variable_limited_by_latency(action->variable) ){
287                 (action->generic_action).latency_limited = 1;
288         }else{
289                 (action->generic_action).latency_limited = 0;
290         }
291     if (action->latency > 0) {
292       if (min < 0)
293         min = action->latency;
294       else if (action->latency < min)
295         min = action->latency;
296     }
297   }
298
299   return min;
300 }
301
302 static void net_update_actions_state(double now, double delta)
303 {
304   double deltap = 0.0;
305   surf_action_network_CM02_t action = NULL;
306   surf_action_network_CM02_t next_action = NULL;
307   xbt_swag_t running_actions = surf_network_model->states.running_action_set;
308   /*
309      xbt_swag_t failed_actions =
310      surf_network_model->states.failed_action_set;
311    */
312
313   xbt_swag_foreach_safe(action, next_action, running_actions) {
314
315 #ifdef HAVE_TRACING
316     xbt_dynar_t route = used_routing->get_route(action->src, action->dst);
317     link_CM02_t link;
318     unsigned int i;
319     xbt_dynar_foreach(route, i, link) {
320         TRACE_surf_link_set_utilization (link->lmm_resource.generic_resource.name,
321           action->generic_action.data, lmm_variable_getvalue(action->variable), now-delta, delta);
322     }
323 #endif
324
325     deltap = delta;
326     if (action->latency > 0) {
327       if (action->latency > deltap) {
328         double_update(&(action->latency), deltap);
329         deltap = 0.0;
330       } else {
331         double_update(&(deltap), action->latency);
332         action->latency = 0.0;
333       }
334       if ((action->latency == 0.0) && !(action->suspended))
335         lmm_update_variable_weight(network_maxmin_system, action->variable,
336                                    action->weight);
337     }
338     double_update(&(action->generic_action.remains),
339                   lmm_variable_getvalue(action->variable) * deltap);
340     if (action->generic_action.max_duration != NO_MAX_DURATION)
341       double_update(&(action->generic_action.max_duration), delta);
342
343     if ((action->generic_action.remains <= 0) &&
344         (lmm_get_variable_weight(action->variable) > 0)) {
345       action->generic_action.finish = surf_get_clock();
346       surf_network_model->action_state_set((surf_action_t) action,
347                                            SURF_ACTION_DONE);
348     } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
349                && (action->generic_action.max_duration <= 0)) {
350       action->generic_action.finish = surf_get_clock();
351       surf_network_model->action_state_set((surf_action_t) action,
352                                            SURF_ACTION_DONE);
353     }
354   }
355
356   return;
357 }
358
359 static void net_update_resource_state(void *id,
360                                   tmgr_trace_event_t event_type,
361                                   double value, double date)
362 {
363   link_CM02_t nw_link = id;
364   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
365   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
366   /*     value, event_type); */
367
368   if (event_type == nw_link->lmm_resource.power.event) {
369     double delta =
370       sg_weight_S_parameter / value - sg_weight_S_parameter /
371       (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale);
372     lmm_variable_t var = NULL;
373     lmm_element_t elem = NULL;
374     surf_action_network_CM02_t action = NULL;
375
376     nw_link->lmm_resource.power.peak = value;
377     lmm_update_constraint_bound(network_maxmin_system,
378                                 nw_link->lmm_resource.constraint,
379                                 sg_bandwidth_factor *
380                                 (nw_link->lmm_resource.power.peak *
381                                  nw_link->lmm_resource.power.scale));
382 #ifdef HAVE_TRACING
383     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));
384 #endif
385     if (sg_weight_S_parameter > 0) {
386       while ((var = lmm_get_var_from_cnst
387               (network_maxmin_system, nw_link->lmm_resource.constraint,
388                &elem))) {
389         action = lmm_variable_id(var);
390         action->weight += delta;
391         if (!(action->suspended))
392           lmm_update_variable_weight(network_maxmin_system, action->variable,
393                                      action->weight);
394       }
395     }
396     if (tmgr_trace_event_free(event_type))
397       nw_link->lmm_resource.power.event = NULL;
398   } else if (event_type == nw_link->lat_event) {
399     double delta = value - nw_link->lat_current;
400     lmm_variable_t var = NULL;
401     lmm_element_t elem = NULL;
402     surf_action_network_CM02_t action = NULL;
403
404     nw_link->lat_current = value;
405     while ((var = lmm_get_var_from_cnst
406             (network_maxmin_system, nw_link->lmm_resource.constraint,
407              &elem))) {
408       action = lmm_variable_id(var);
409       action->lat_current += delta;
410       action->weight += delta;
411       if (action->rate < 0)
412         lmm_update_variable_bound(network_maxmin_system, action->variable,
413                                   sg_tcp_gamma / (2.0 * action->lat_current));
414       else{
415         lmm_update_variable_bound(network_maxmin_system, action->variable,
416                                   min(action->rate,
417                                       sg_tcp_gamma / (2.0 *
418                                                       action->lat_current)));
419
420         if(action->rate < sg_tcp_gamma / (2.0 * action->lat_current) ){
421                 INFO0("Flow is limited BYBANDWIDTH");
422         }else{
423                 INFO1("Flow is limited BYLATENCY, latency of flow is %f",action->lat_current);
424         }
425       }
426       if (!(action->suspended))
427         lmm_update_variable_weight(network_maxmin_system, action->variable,
428                                    action->weight);
429
430     }
431     if (tmgr_trace_event_free(event_type))
432       nw_link->lat_event = NULL;
433   } else if (event_type == nw_link->lmm_resource.state_event) {
434     if (value > 0)
435       nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
436     else {
437       lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
438       lmm_variable_t var = NULL;
439       lmm_element_t elem = NULL;
440
441       nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
442       while ((var = lmm_get_var_from_cnst
443               (network_maxmin_system, cnst, &elem))) {
444         surf_action_t action = lmm_variable_id(var);
445
446         if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
447             surf_action_state_get(action) == SURF_ACTION_READY) {
448           action->finish = date;
449           surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
450         }
451       }
452     }
453     if (tmgr_trace_event_free(event_type))
454       nw_link->lmm_resource.state_event = NULL;
455   } else {
456     CRITICAL0("Unknown event ! \n");
457     xbt_abort();
458   }
459
460   return;
461 }
462
463
464 static surf_action_t net_communicate(const char *src_name, const char *dst_name,
465                                  int src, int dst, double size, double rate)
466 {
467   unsigned int i;
468   link_CM02_t link;
469   int failed = 0;
470   surf_action_network_CM02_t action = NULL;
471   double bandwidth_bound;
472   /* LARGE PLATFORMS HACK:
473      Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
474      Use the cluster_id for ->id */
475   xbt_dynar_t route = used_routing->get_route(src, dst);
476   xbt_dynar_t back_route = NULL;
477   int constraints_per_variable = 0;
478
479   if( sg_network_fullduplex == 1){
480           back_route = used_routing->get_route(dst, src);
481   }
482
483   /* LARGE PLATFORMS HACK:
484      total_route_size = route_size + src->link_nb + dst->nb */
485
486   XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
487   /* LARGE PLATFORMS HACK:
488      assert on total_route_size */
489   xbt_assert2(xbt_dynar_length(route),
490               "You're trying to send data from %s to %s but there is no connection between these two hosts.",
491               src_name, dst_name);
492
493   xbt_dynar_foreach(route, i, link) {
494     if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
495       failed = 1;
496       break;
497     }
498   }
499   action =
500     surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
501                     surf_network_model, failed);
502   (action->generic_action).latency_limited = 0;
503
504   xbt_swag_insert(action, action->generic_action.state_set);
505   action->rate = rate;
506
507   action->latency = 0.0;
508   action->weight = 0.0;
509   bandwidth_bound = -1.0;
510   xbt_dynar_foreach(route, i, link) {
511     action->latency += link->lat_current;
512     action->weight +=
513       link->lat_current +
514       sg_weight_S_parameter /
515       (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
516     if(bandwidth_bound < 0.0)
517       bandwidth_bound = (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
518     else
519       bandwidth_bound = min(bandwidth_bound, (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale));
520   }
521   /* LARGE PLATFORMS HACK:
522      Add src->link and dst->link latencies */
523   action->lat_current = action->latency;
524   action->latency *= (*latency_factor_callback)(size);
525   action->rate = (*bandwidth_constraint_callback)(action->rate, bandwidth_bound, size);
526
527   /* LARGE PLATFORMS HACK:
528      lmm_variable_new(..., total_route_size) */
529   if(back_route != NULL){
530           constraints_per_variable = xbt_dynar_length(route)+xbt_dynar_length(back_route);
531   }else{
532           constraints_per_variable = xbt_dynar_length(route);
533   }
534
535   if (action->latency > 0)
536     action->variable =
537       lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,constraints_per_variable);
538   else
539     action->variable =
540       lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,constraints_per_variable);
541
542   if (action->rate < 0) {
543     if (action->lat_current > 0)
544       lmm_update_variable_bound(network_maxmin_system, action->variable,
545                                 sg_tcp_gamma / (2.0 * action->lat_current));
546     else
547       lmm_update_variable_bound(network_maxmin_system, action->variable,
548                                 -1.0);
549   } else {
550     if (action->lat_current > 0)
551       lmm_update_variable_bound(network_maxmin_system, action->variable,
552                                 min(action->rate,
553                                     sg_tcp_gamma / (2.0 *
554                                                     action->lat_current)));
555     else
556       lmm_update_variable_bound(network_maxmin_system, action->variable,
557                                 action->rate);
558   }
559
560   xbt_dynar_foreach(route, i, link) {
561     lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
562                action->variable, 1.0);
563   }
564
565   if( sg_network_fullduplex == 1){
566           DEBUG1("Fullduplex active adding backward flow using 5%c", '%');
567           xbt_dynar_foreach(back_route, i, link) {
568                   lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
569                action->variable, .05);
570           }
571   }  /* LARGE PLATFORMS HACK:
572      expand also with src->link and dst->link */
573
574   /* saving the src and dst of this communication */
575   action->src = src;
576   action->dst = dst;
577
578   XBT_OUT;
579
580   return (surf_action_t) action;
581 }
582
583 static double net_get_link_bandwidth(const void *link)
584 {
585   surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
586   return lmm->power.peak * lmm->power.scale;
587 }
588
589 static int net_link_shared(const void *link)
590 {
591   return lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
592 }
593
594 static void net_action_suspend(surf_action_t action)
595 {
596   ((surf_action_network_CM02_t) action)->suspended = 1;
597   lmm_update_variable_weight(network_maxmin_system,
598                              ((surf_action_network_CM02_t) action)->variable,
599                              0.0);
600 }
601
602 static void net_action_resume(surf_action_t action)
603 {
604   if (((surf_action_network_CM02_t) action)->suspended) {
605     lmm_update_variable_weight(network_maxmin_system,
606                                ((surf_action_network_CM02_t)
607                                 action)->variable,
608                                ((surf_action_network_CM02_t) action)->weight);
609     ((surf_action_network_CM02_t) action)->suspended = 0;
610   }
611 }
612
613 static int net_action_is_suspended(surf_action_t action)
614 {
615   return ((surf_action_network_CM02_t) action)->suspended;
616 }
617
618 static void net_action_set_max_duration(surf_action_t action, double duration)
619 {
620   action->max_duration = duration;
621 }
622
623
624 /**
625  * FIXME : this should be done in the binding code !!
626  */
627 void network_create_resource(char *name,
628         double initial_bandwidth,double initial_latency)
629 {
630
631         char* name_link;
632         double bw_initial;
633         tmgr_trace_t bw_trace;
634         double lat_initial;
635         tmgr_trace_t lat_trace;
636         e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
637         e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
638         tmgr_trace_t state_trace;
639
640         name_link = xbt_strdup(name);
641         bw_initial = initial_bandwidth;
642         bw_trace = tmgr_trace_new("");
643         lat_initial = initial_latency;
644         lat_trace = tmgr_trace_new("");
645         // FIXME Hard Coded Values
646         //state_initial_link = SURF_RESOURCE_ON;
647         //policy_initial_link = SURF_LINK_SHARED;
648         state_trace = tmgr_trace_new("");
649
650         net_link_new(name_link, bw_initial, bw_trace,
651                    lat_initial, lat_trace, state_initial_link, state_trace,
652                    policy_initial_link, xbt_dict_new());
653 }
654
655 static void net_finalize(void)
656 {
657   surf_model_exit(surf_network_model);
658   surf_network_model = NULL;
659
660   used_routing->finalize();
661   lmm_system_free(network_maxmin_system);
662   network_maxmin_system = NULL;
663 }
664
665 static void surf_network_model_init_internal(void)
666 {
667   surf_network_model = surf_model_init();
668
669   surf_network_model->name = "network";
670   surf_network_model->action_unref = net_action_unref;
671   surf_network_model->action_cancel = net_action_cancel;
672   surf_network_model->action_recycle = net_action_recycle;
673   surf_network_model->get_remains = net_action_get_remains;
674   surf_network_model->get_latency_limited = net_get_link_latency;
675
676   surf_network_model->model_private->resource_used = net_resource_used;
677   surf_network_model->model_private->share_resources = net_share_resources;
678   surf_network_model->model_private->update_actions_state =
679     net_update_actions_state;
680   surf_network_model->model_private->update_resource_state =
681     net_update_resource_state;
682   surf_network_model->model_private->finalize = net_finalize;
683
684   surf_network_model->suspend = net_action_suspend;
685   surf_network_model->resume = net_action_resume;
686   surf_network_model->is_suspended = net_action_is_suspended;
687   surf_cpu_model->set_max_duration = net_action_set_max_duration;
688
689   surf_network_model->extension.network.communicate = net_communicate;
690   surf_network_model->extension.network.get_link_bandwidth =
691     net_get_link_bandwidth;
692   surf_network_model->extension.network.link_shared = net_link_shared;
693   surf_network_model->extension.network.create_resource = network_create_resource;
694   surf_network_model->extension.network.add_traces = net_add_traces;
695
696   if (!network_maxmin_system)
697     network_maxmin_system = lmm_system_new();
698
699   routing_model_create(sizeof(link_CM02_t),
700                        net_link_new(xbt_strdup("__loopback__"),
701                                 498000000, NULL, 0.000015, NULL,
702                                 SURF_RESOURCE_ON, NULL, SURF_LINK_FATPIPE,
703                                 NULL));
704 }
705
706
707
708 /************************************************************************/
709 /* New model based on LV08 and experimental results of MPI ping-pongs   */
710 /************************************************************************/
711 void surf_network_model_init_SMPI(const char *filename)
712 {
713
714   if (surf_network_model)
715     return;
716   surf_network_model_init_internal();
717   latency_factor_callback = &smpi_latency_factor;
718   bandwidth_factor_callback = &smpi_bandwidth_factor;
719   bandwidth_constraint_callback = &smpi_bandwidth_constraint;
720   net_define_callbacks(filename);
721   xbt_dynar_push(model_list, &surf_network_model);
722   network_solve = lmm_solve;
723
724   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
725
726   update_model_description(surf_network_model_description,
727                            "SMPI", surf_network_model);
728 }
729
730 /************************************************************************/
731 /* New model based on optimizations discussed during this thesis        */
732 /************************************************************************/
733 void surf_network_model_init_LegrandVelho(const char *filename)
734 {
735
736   if (surf_network_model)
737     return;
738   surf_network_model_init_internal();
739   net_define_callbacks(filename);
740   xbt_dynar_push(model_list, &surf_network_model);
741   network_solve = lmm_solve;
742
743   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor",10.4);
744   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
745   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
746
747   update_model_description(surf_network_model_description,
748                            "LV08", surf_network_model);
749 }
750
751 /***************************************************************************/
752 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
753 /***************************************************************************/
754 /* @TechReport{      rr-lip2002-40, */
755 /*   author        = {Henri Casanova and Loris Marchal}, */
756 /*   institution   = {LIP}, */
757 /*   title         = {A Network Model for Simulation of Grid Application}, */
758 /*   number        = {2002-40}, */
759 /*   month         = {oct}, */
760 /*   year          = {2002} */
761 /* } */
762 void surf_network_model_init_CM02(const char *filename)
763 {
764
765   if (surf_network_model)
766     return;
767   surf_network_model_init_internal();
768   net_define_callbacks(filename);
769   xbt_dynar_push(model_list, &surf_network_model);
770   network_solve = lmm_solve;
771
772   update_model_description(surf_network_model_description,
773                            "CM02", surf_network_model);
774 }
775
776 void surf_network_model_init_Reno(const char *filename)
777 {
778   if (surf_network_model)
779     return;
780   surf_network_model_init_internal();
781   net_define_callbacks(filename);
782
783   xbt_dynar_push(model_list, &surf_network_model);
784   lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_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", 8775);
790
791   update_model_description(surf_network_model_description,
792                            "Reno", surf_network_model);
793 }
794
795
796 void surf_network_model_init_Reno2(const char *filename)
797 {
798   if (surf_network_model)
799     return;
800   surf_network_model_init_internal();
801   net_define_callbacks(filename);
802
803   xbt_dynar_push(model_list, &surf_network_model);
804   lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
805                                     func_reno2_fpi);
806   network_solve = lagrange_solve;
807
808   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
809   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
810   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S_parameter", 8775);
811
812   update_model_description(surf_network_model_description,
813                            "Reno2", surf_network_model);
814 }
815
816 void surf_network_model_init_Vegas(const char *filename)
817 {
818   if (surf_network_model)
819     return;
820   surf_network_model_init_internal();
821   net_define_callbacks(filename);
822
823   xbt_dynar_push(model_list, &surf_network_model);
824   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
825                                     func_vegas_fpi);
826   network_solve = lagrange_solve;
827
828   xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
829   xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
830   xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
831
832   update_model_description(surf_network_model_description,
833                            "Vegas", surf_network_model);
834 }
835
836