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[simgrid.git] / src / surf / workstation_ptask_L07.cpp
1 /* Copyright (c) 2007-2010, 2013-2014. 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 "workstation_ptask_L07.hpp"
8 #include "cpu_interface.hpp"
9 #include "surf_routing.hpp"
10
11 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_workstation);
12
13 static int ptask_host_count = 0;
14 static xbt_dict_t ptask_parallel_task_link_set = NULL;
15 lmm_system_t ptask_maxmin_system = NULL;
16
17
18 /**************************************/
19 /*** Resource Creation & Destruction **/
20 /**************************************/
21
22 static void ptask_netlink_parse_init(sg_platf_link_cbarg_t link)
23 {
24   netlink_parse_init(link);
25   current_property_set = NULL;
26 }
27
28 static void ptask_define_callbacks()
29 {
30   sg_platf_host_add_cb(cpu_parse_init);
31   sg_platf_host_add_cb(workstation_parse_init);
32   sg_platf_link_add_cb(ptask_netlink_parse_init);
33   sg_platf_postparse_add_cb(workstation_add_traces);
34 }
35
36 void surf_workstation_model_init_ptask_L07(void)
37 {
38   XBT_INFO("surf_workstation_model_init_ptask_L07");
39   xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
40   xbt_assert(!surf_network_model, "network model type already defined");
41   ptask_define_callbacks();
42   surf_workstation_model = new WorkstationL07Model();
43   ModelPtr model = surf_workstation_model;
44   xbt_dynar_push(model_list, &model);
45   xbt_dynar_push(model_list_invoke, &model);
46 }
47
48
49 WorkstationL07Model::WorkstationL07Model() : WorkstationModel("Workstation ptask_L07") {
50   if (!ptask_maxmin_system)
51         ptask_maxmin_system = lmm_system_new(1);
52   surf_workstation_model = NULL;
53   surf_network_model = new NetworkL07Model();
54   surf_cpu_model_pm = new CpuL07Model();
55   routing_model_create(static_cast<ResourcePtr>(surf_network_model->createNetworkLink("__loopback__",
56                                                           498000000, NULL,
57                                                           0.000015, NULL,
58                                                           SURF_RESOURCE_ON, NULL,
59                                                           SURF_LINK_FATPIPE, NULL)));
60   p_cpuModel = surf_cpu_model_pm;
61 }
62
63 WorkstationL07Model::~WorkstationL07Model() {
64   xbt_dict_free(&ptask_parallel_task_link_set);
65
66   delete surf_cpu_model_pm;
67   delete surf_network_model;
68   ptask_host_count = 0;
69
70   if (ptask_maxmin_system) {
71     lmm_system_free(ptask_maxmin_system);
72     ptask_maxmin_system = NULL;
73   }
74 }
75
76 double WorkstationL07Model::shareResources(double /*now*/)
77 {
78   WorkstationL07ActionPtr action;
79
80   ActionListPtr running_actions = getRunningActionSet();
81   double min = this->shareResourcesMaxMin(running_actions,
82                                               ptask_maxmin_system,
83                                               bottleneck_solve);
84
85   for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
86          ; it != itend ; ++it) {
87         action = static_cast<WorkstationL07ActionPtr>(&*it);
88     if (action->m_latency > 0) {
89       if (min < 0) {
90         min = action->m_latency;
91         XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
92                action->getStartTime(), min);
93       } else if (action->m_latency < min) {
94         min = action->m_latency;
95         XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
96                action->getStartTime(), min);
97       }
98     }
99   }
100
101   XBT_DEBUG("min value : %f", min);
102
103   return min;
104 }
105
106 void WorkstationL07Model::updateActionsState(double /*now*/, double delta)
107 {
108   double deltap = 0.0;
109   WorkstationL07ActionPtr action;
110
111   ActionListPtr actionSet = getRunningActionSet();
112
113   for(ActionList::iterator it(actionSet->begin()), itNext = it, itend(actionSet->end())
114          ; it != itend ; it=itNext) {
115         ++itNext;
116     action = static_cast<WorkstationL07ActionPtr>(&*it);
117     deltap = delta;
118     if (action->m_latency > 0) {
119       if (action->m_latency > deltap) {
120         double_update(&(action->m_latency), deltap, sg_surf_precision);
121         deltap = 0.0;
122       } else {
123         double_update(&(deltap), action->m_latency, sg_surf_precision);
124         action->m_latency = 0.0;
125       }
126       if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
127         action->updateBound();
128         lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 1.0);
129       }
130     }
131     XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
132            action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
133     action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
134
135     if (action->getMaxDuration() != NO_MAX_DURATION)
136       action->updateMaxDuration(delta);
137
138     XBT_DEBUG("Action (%p) : remains (%g).",
139            action, action->getRemains());
140     if ((action->getRemains() <= 0) &&
141         (lmm_get_variable_weight(action->getVariable()) > 0)) {
142       action->finish();
143       action->setState(SURF_ACTION_DONE);
144     } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
145                (action->getMaxDuration() <= 0)) {
146       action->finish();
147      action->setState(SURF_ACTION_DONE);
148     } else {
149       /* Need to check that none of the model has failed */
150       lmm_constraint_t cnst = NULL;
151       int i = 0;
152       void *constraint_id = NULL;
153
154       while ((cnst = lmm_get_cnst_from_var(ptask_maxmin_system, action->getVariable(),
155                                     i++))) {
156         constraint_id = lmm_constraint_id(cnst);
157
158         if (static_cast<WorkstationPtr>(constraint_id)->getState() == SURF_RESOURCE_OFF) {
159           XBT_DEBUG("Action (%p) Failed!!", action);
160           action->finish();
161           action->setState(SURF_ACTION_FAILED);
162           break;
163         }
164       }
165     }
166   }
167   return;
168 }
169
170 ActionPtr WorkstationL07Model::executeParallelTask(int workstation_nb,
171                                                    void **workstation_list,
172                                                  double
173                                                  *computation_amount, double
174                                                  *communication_amount,
175                                                  double rate)
176 {
177   WorkstationL07ActionPtr action;
178   int i, j;
179   unsigned int cpt;
180   int nb_link = 0;
181   int nb_host = 0;
182   double latency = 0.0;
183
184   if (ptask_parallel_task_link_set == NULL)
185     ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
186
187   xbt_dict_reset(ptask_parallel_task_link_set);
188
189   /* Compute the number of affected resources... */
190   for (i = 0; i < workstation_nb; i++) {
191     for (j = 0; j < workstation_nb; j++) {
192       xbt_dynar_t route=NULL;
193
194       if (communication_amount[i * workstation_nb + j] > 0) {
195         double lat=0.0;
196         unsigned int cpt;
197         void *_link;
198         LinkL07Ptr link;
199
200         routing_platf->getRouteAndLatency(static_cast<WorkstationL07Ptr>(workstation_list[i])->p_netElm,
201                                                   static_cast<WorkstationL07Ptr>(workstation_list[j])->p_netElm,
202                                                   &route,
203                                                   &lat);
204         latency = MAX(latency, lat);
205
206         xbt_dynar_foreach(route, cpt, _link) {
207            link = static_cast<LinkL07Ptr>(_link);
208            xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
209         }
210       }
211     }
212   }
213
214   nb_link = xbt_dict_length(ptask_parallel_task_link_set);
215   xbt_dict_reset(ptask_parallel_task_link_set);
216
217   for (i = 0; i < workstation_nb; i++)
218     if (computation_amount[i] > 0)
219       nb_host++;
220
221   action = new WorkstationL07Action(this, 1, 0);
222   XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
223          action, workstation_nb, nb_link);
224   action->m_suspended = 0;        /* Should be useless because of the
225                                    calloc but it seems to help valgrind... */
226   action->m_workstationNb = workstation_nb;
227   action->p_workstationList = (WorkstationPtr *) workstation_list;
228   action->p_computationAmount = computation_amount;
229   action->p_communicationAmount = communication_amount;
230   action->m_latency = latency;
231   action->m_rate = rate;
232
233   action->p_variable = lmm_variable_new(ptask_maxmin_system, action, 1.0,
234                        (action->m_rate > 0) ? action->m_rate : -1.0,
235                        workstation_nb + nb_link);
236
237   if (action->m_latency > 0)
238     lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
239
240   for (i = 0; i < workstation_nb; i++)
241     lmm_expand(ptask_maxmin_system,
242                static_cast<CpuPtr>(static_cast<WorkstationL07Ptr>(workstation_list[i])->p_cpu)->getConstraint(),
243                action->getVariable(), computation_amount[i]);
244
245   for (i = 0; i < workstation_nb; i++) {
246     for (j = 0; j < workstation_nb; j++) {
247       void *_link;
248       LinkL07Ptr link;
249
250       xbt_dynar_t route=NULL;
251       if (communication_amount[i * workstation_nb + j] == 0.0)
252         continue;
253
254       routing_platf->getRouteAndLatency(static_cast<WorkstationL07Ptr>(workstation_list[i])->p_netElm,
255                                         static_cast<WorkstationL07Ptr>(workstation_list[j])->p_netElm,
256                                             &route, NULL);
257
258       xbt_dynar_foreach(route, cpt, _link) {
259         link = static_cast<LinkL07Ptr>(_link);
260         lmm_expand_add(ptask_maxmin_system, link->getConstraint(),
261                        action->getVariable(),
262                        communication_amount[i * workstation_nb + j]);
263       }
264     }
265   }
266
267   if (nb_link + nb_host == 0) {
268     action->setCost(1.0);
269     action->setRemains(0.0);
270   }
271
272   return static_cast<ActionPtr>(action);
273 }
274
275 WorkstationPtr WorkstationL07Model::createWorkstation(const char *name)
276 {
277   WorkstationL07Ptr wk = NULL;
278   xbt_assert(!surf_workstation_resource_priv(surf_workstation_resource_by_name(name)),
279               "Host '%s' declared several times in the platform file.",
280               name);
281
282   wk = new WorkstationL07(this, name, NULL,
283                                   static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL)),
284                                   static_cast<CpuPtr>(xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL)));
285
286   xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, static_cast<ResourcePtr>(wk));
287
288   return wk;//FIXME:xbt_lib_get_elm_or_null(host_lib, name);
289 }
290
291 ActionPtr WorkstationL07Model::communicate(WorkstationPtr src, WorkstationPtr dst,
292                                        double size, double rate)
293 {
294   void **workstation_list = xbt_new0(void *, 2);
295   double *computation_amount = xbt_new0(double, 2);
296   double *communication_amount = xbt_new0(double, 4);
297   ActionPtr res = NULL;
298
299   workstation_list[0] = static_cast<ResourcePtr>(src);
300   workstation_list[1] = static_cast<ResourcePtr>(dst);
301   communication_amount[1] = size;
302
303   res = executeParallelTask(2, workstation_list,
304                                     computation_amount,
305                                     communication_amount, rate);
306
307   return res;
308 }
309
310 xbt_dynar_t WorkstationL07Model::getRoute(WorkstationPtr src, WorkstationPtr dst)
311 {
312   xbt_dynar_t route=NULL;
313   routing_platf->getRouteAndLatency(src->p_netElm, dst->p_netElm, &route, NULL);
314   return route;
315 }
316
317 CpuPtr CpuL07Model::createCpu(const char *name,  xbt_dynar_t powerPeak,
318                           int pstate, double power_scale,
319                           tmgr_trace_t power_trace, int core,
320                           e_surf_resource_state_t state_initial,
321                           tmgr_trace_t state_trace,
322                           xbt_dict_t cpu_properties)
323 {
324   double power_initial = xbt_dynar_get_as(powerPeak, pstate, double);
325
326   xbt_assert(!surf_workstation_resource_priv(surf_workstation_resource_by_name(name)),
327               "Host '%s' declared several times in the platform file.",
328               name);
329
330   CpuL07Ptr cpu = new CpuL07(this, name, cpu_properties,
331                                      power_initial, power_scale, power_trace,
332                          core, state_initial, state_trace);
333
334   xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, static_cast<ResourcePtr>(cpu));
335
336   return cpu;//FIXME:xbt_lib_get_elm_or_null(host_lib, name);
337 }
338
339 NetworkLinkPtr NetworkL07Model::createNetworkLink(const char *name,
340                                  double bw_initial,
341                                  tmgr_trace_t bw_trace,
342                                  double lat_initial,
343                                  tmgr_trace_t lat_trace,
344                                  e_surf_resource_state_t
345                                  state_initial,
346                                  tmgr_trace_t state_trace,
347                                  e_surf_link_sharing_policy_t policy,
348                                  xbt_dict_t properties)
349 {
350   xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
351                       "Link '%s' declared several times in the platform file.",
352                       name);
353
354   LinkL07Ptr nw_link = new LinkL07(this, name, properties,
355                                        bw_initial, bw_trace,
356                                        lat_initial, lat_trace,
357                                        state_initial, state_trace,
358                                        policy);
359
360   xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, static_cast<ResourcePtr>(nw_link));
361   return nw_link;
362 }
363
364 void WorkstationL07Model::addTraces()
365 {
366   xbt_dict_cursor_t cursor = NULL;
367   char *trace_name, *elm;
368
369   if (!trace_connect_list_host_avail)
370     return;
371
372   /* Connect traces relative to cpu */
373   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
374     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
375     CpuL07Ptr host = static_cast<CpuL07Ptr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
376
377     xbt_assert(host, "Host %s undefined", elm);
378     xbt_assert(trace, "Trace %s undefined", trace_name);
379
380     host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(host));
381   }
382
383   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
384     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
385     CpuL07Ptr host = static_cast<CpuL07Ptr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
386
387     xbt_assert(host, "Host %s undefined", elm);
388     xbt_assert(trace, "Trace %s undefined", trace_name);
389
390     host->p_powerEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(host));
391   }
392
393   /* Connect traces relative to network */
394   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
395     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
396     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
397
398     xbt_assert(link, "Link %s undefined", elm);
399     xbt_assert(trace, "Trace %s undefined", trace_name);
400
401     link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
402   }
403
404   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
405     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
406     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
407
408     xbt_assert(link, "Link %s undefined", elm);
409     xbt_assert(trace, "Trace %s undefined", trace_name);
410
411     link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
412   }
413
414   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
415     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
416     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
417
418     xbt_assert(link, "Link %s undefined", elm);
419     xbt_assert(trace, "Trace %s undefined", trace_name);
420
421     link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
422   }
423 }
424
425 /************
426  * Resource *
427  ************/
428
429 WorkstationL07::WorkstationL07(WorkstationModelPtr model, const char* name, xbt_dict_t props, RoutingEdgePtr netElm, CpuPtr cpu)
430   : Workstation(model, name, props, NULL, netElm, cpu)
431 {
432 }
433
434 double WorkstationL07::getPowerPeakAt(int /*pstate_index*/)
435 {
436         XBT_DEBUG("[ws_get_power_peak_at] Not implemented for workstation_ptask_L07");
437         return 0.0;
438 }
439
440 int WorkstationL07::getNbPstates()
441 {
442         XBT_DEBUG("[ws_get_nb_pstates] Not implemented for workstation_ptask_L07");
443         return 0.0;
444 }
445
446 void WorkstationL07::setPowerPeakAt(int /*pstate_index*/)
447 {
448         XBT_DEBUG("[ws_set_power_peak_at] Not implemented for workstation_ptask_L07");
449 }
450
451 double WorkstationL07::getConsumedEnergy()
452 {
453         XBT_DEBUG("[ws_get_consumed_energy] Not implemented for workstation_ptask_L07");
454         return 0.0;
455 }
456
457 CpuL07::CpuL07(CpuL07ModelPtr model, const char* name, xbt_dict_t props,
458                      double power_initial, double power_scale, tmgr_trace_t power_trace,
459                            int core, e_surf_resource_state_t state_initial, tmgr_trace_t state_trace)
460  : Cpu(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, power_initial * power_scale),
461            core, power_initial, power_scale)
462 {
463   xbt_assert(m_powerScale > 0, "Power has to be >0");
464
465   if (power_trace)
466     p_powerEvent = tmgr_history_add_trace(history, power_trace, 0.0, 0,
467                                            static_cast<ResourcePtr>(this));
468   else
469     p_powerEvent = NULL;
470
471   setState(state_initial);
472   if (state_trace)
473         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, static_cast<ResourcePtr>(this));
474 }
475
476 LinkL07::LinkL07(NetworkL07ModelPtr model, const char* name, xbt_dict_t props,
477                          double bw_initial,
478                          tmgr_trace_t bw_trace,
479                          double lat_initial,
480                          tmgr_trace_t lat_trace,
481                          e_surf_resource_state_t state_initial,
482                          tmgr_trace_t state_trace,
483                          e_surf_link_sharing_policy_t policy)
484  : NetworkLink(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, bw_initial), history, state_trace)
485 {
486   m_bwCurrent = bw_initial;
487   if (bw_trace)
488     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, static_cast<ResourcePtr>(this));
489
490   setState(state_initial);
491   m_latCurrent = lat_initial;
492
493   if (lat_trace)
494         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, static_cast<ResourcePtr>(this));
495
496   if (policy == SURF_LINK_FATPIPE)
497         lmm_constraint_shared(getConstraint());
498 }
499
500 bool CpuL07::isUsed(){
501   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
502 }
503
504 bool LinkL07::isUsed(){
505   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
506 }
507
508 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
509   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
510   if (event_type == p_powerEvent) {
511           m_powerScale = value;
512     lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_powerPeak * m_powerScale);
513     if (tmgr_trace_event_free(event_type))
514       p_powerEvent = NULL;
515   } else if (event_type == p_stateEvent) {
516     if (value > 0)
517       setState(SURF_RESOURCE_ON);
518     else
519       setState(SURF_RESOURCE_OFF);
520     if (tmgr_trace_event_free(event_type))
521       p_stateEvent = NULL;
522   } else {
523     XBT_CRITICAL("Unknown event ! \n");
524     xbt_abort();
525   }
526   return;
527 }
528
529 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date){
530   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
531   if (event_type == p_bwEvent) {
532     updateBandwidth(value, date);
533     if (tmgr_trace_event_free(event_type))
534       p_bwEvent = NULL;
535   } else if (event_type == p_latEvent) {
536     updateLatency(value, date);
537     if (tmgr_trace_event_free(event_type))
538       p_latEvent = NULL;
539   } else if (event_type == p_stateEvent) {
540     if (value > 0)
541       setState(SURF_RESOURCE_ON);
542     else
543       setState(SURF_RESOURCE_OFF);
544     if (tmgr_trace_event_free(event_type))
545       p_stateEvent = NULL;
546   } else {
547     XBT_CRITICAL("Unknown event ! \n");
548     xbt_abort();
549   }
550   return;
551 }
552
553 e_surf_resource_state_t WorkstationL07::getState()
554 {
555   return p_cpu->getState();
556 }
557
558 ActionPtr WorkstationL07::execute(double size)
559 {
560   void **workstation_list = xbt_new0(void *, 1);
561   double *computation_amount = xbt_new0(double, 1);
562   double *communication_amount = xbt_new0(double, 1);
563
564   workstation_list[0] = static_cast<ResourcePtr>(this);
565   communication_amount[0] = 0.0;
566   computation_amount[0] = size;
567
568   return static_cast<WorkstationL07ModelPtr>(getModel())->executeParallelTask(1, workstation_list,
569                                               computation_amount,
570                                      communication_amount, -1);
571 }
572
573 ActionPtr WorkstationL07::sleep(double duration)
574 {
575   WorkstationL07ActionPtr action = NULL;
576
577   XBT_IN("(%s,%g)", getName(), duration);
578
579   action = static_cast<WorkstationL07ActionPtr>(execute(1.0));
580   action->m_maxDuration = duration;
581   action->m_suspended = 2;
582   lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
583
584   XBT_OUT();
585   return action;
586 }
587
588 double LinkL07::getBandwidth()
589 {
590   return m_bwCurrent;
591 }
592
593 void LinkL07::updateBandwidth(double value, double date)
594 {
595   m_bwCurrent = value;
596   lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_bwCurrent);
597 }
598
599 double LinkL07::getLatency()
600 {
601   return m_latCurrent;
602 }
603
604 void LinkL07::updateLatency(double value, double date)
605 {
606   lmm_variable_t var = NULL;
607   WorkstationL07ActionPtr action;
608   lmm_element_t elem = NULL;
609
610   m_latCurrent = value;
611   while ((var = lmm_get_var_from_cnst(ptask_maxmin_system, getConstraint(), &elem))) {
612     action = (WorkstationL07ActionPtr) lmm_variable_id(var);
613     action->updateBound();
614   }
615 }
616
617
618 bool LinkL07::isShared()
619 {
620   return lmm_constraint_is_shared(getConstraint());
621 }
622
623 /**********
624  * Action *
625  **********/
626
627 WorkstationL07Action::~WorkstationL07Action(){
628   free(p_workstationList);
629   free(p_communicationAmount);
630   free(p_computationAmount);
631 }
632
633 void WorkstationL07Action::updateBound()
634 {
635   double lat_current = 0.0;
636   double lat_bound = -1.0;
637   int i, j;
638
639   for (i = 0; i < m_workstationNb; i++) {
640     for (j = 0; j < m_workstationNb; j++) {
641       xbt_dynar_t route=NULL;
642
643       if (p_communicationAmount[i * m_workstationNb + j] > 0) {
644         double lat = 0.0;
645         routing_platf->getRouteAndLatency(static_cast<WorkstationL07Ptr>(((void**)p_workstationList)[i])->p_netElm,
646                                           static_cast<WorkstationL07Ptr>(((void**)p_workstationList)[j])->p_netElm,
647                                                           &route, &lat);
648
649         lat_current = MAX(lat_current, lat * p_communicationAmount[i * m_workstationNb + j]);
650       }
651     }
652   }
653   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
654   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
655   if ((m_latency == 0.0) && (m_suspended == 0)) {
656     if (m_rate < 0)
657       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), lat_bound);
658     else
659       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), min(m_rate, lat_bound));
660   }
661 }
662
663 int WorkstationL07Action::unref()
664 {
665   m_refcount--;
666   if (!m_refcount) {
667     if (actionHook::is_linked())
668           p_stateSet->erase(p_stateSet->iterator_to(*this));
669     if (getVariable())
670       lmm_variable_free(ptask_maxmin_system, getVariable());
671     delete this;
672     return 1;
673   }
674   return 0;
675 }
676
677 void WorkstationL07Action::cancel()
678 {
679   setState(SURF_ACTION_FAILED);
680   return;
681 }
682
683 void WorkstationL07Action::suspend()
684 {
685   XBT_IN("(%p))", this);
686   if (m_suspended != 2) {
687     m_suspended = 1;
688     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 0.0);
689   }
690   XBT_OUT();
691 }
692
693 void WorkstationL07Action::resume()
694 {
695   XBT_IN("(%p)", this);
696   if (m_suspended != 2) {
697     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 1.0);
698     m_suspended = 0;
699   }
700   XBT_OUT();
701 }
702
703 bool WorkstationL07Action::isSuspended()
704 {
705   return m_suspended == 1;
706 }
707
708 void WorkstationL07Action::setMaxDuration(double duration)
709 {                               /* FIXME: should inherit */
710   XBT_IN("(%p,%g)", this, duration);
711   m_maxDuration = duration;
712   XBT_OUT();
713 }
714
715 void WorkstationL07Action::setPriority(double priority)
716 {                               /* FIXME: should inherit */
717   XBT_IN("(%p,%g)", this, priority);
718   m_priority = priority;
719   XBT_OUT();
720 }
721
722 double WorkstationL07Action::getRemains()
723 {
724   XBT_IN("(%p)", this);
725   XBT_OUT();
726   return m_remains;
727 }