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(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<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 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, 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] = src;
 300   workstation_list[1] = 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, cpu);
 335
 336   return cpu;
 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, 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, 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, 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, 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, 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, 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, this);
 467   else
 468     p_powerEvent = NULL;
 469
 470   setState(state_initial);
 471   if (state_trace)
 472         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 473 }
 474
 475 LinkL07::LinkL07(NetworkL07ModelPtr model, const char* name, xbt_dict_t props,
 476                          double bw_initial,
 477                          tmgr_trace_t bw_trace,
 478                          double lat_initial,
 479                          tmgr_trace_t lat_trace,
 480                          e_surf_resource_state_t state_initial,
 481                          tmgr_trace_t state_trace,
 482                          e_surf_link_sharing_policy_t policy)
 483  : NetworkLink(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, bw_initial), history, state_trace)
 484 {
 485   m_bwCurrent = bw_initial;
 486   if (bw_trace)
 487     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 488
 489   setState(state_initial);
 490   m_latCurrent = lat_initial;
 491
 492   if (lat_trace)
 493         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 494
 495   if (policy == SURF_LINK_FATPIPE)
 496         lmm_constraint_shared(getConstraint());
 497 }
 498
 499 bool CpuL07::isUsed(){
 500   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 501 }
 502
 503 bool LinkL07::isUsed(){
 504   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 505 }
 506
 507 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
 508   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
 509   if (event_type == p_powerEvent) {
 510           m_powerScale = value;
 511     lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_powerPeak * m_powerScale);
 512     if (tmgr_trace_event_free(event_type))
 513       p_powerEvent = NULL;
 514   } else if (event_type == p_stateEvent) {
 515     if (value > 0)
 516       setState(SURF_RESOURCE_ON);
 517     else
 518       setState(SURF_RESOURCE_OFF);
 519     if (tmgr_trace_event_free(event_type))
 520       p_stateEvent = NULL;
 521   } else {
 522     XBT_CRITICAL("Unknown event ! \n");
 523     xbt_abort();
 524   }
 525   return;
 526 }
 527
 528 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date){
 529   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
 530   if (event_type == p_bwEvent) {
 531     updateBandwidth(value, date);
 532     if (tmgr_trace_event_free(event_type))
 533       p_bwEvent = NULL;
 534   } else if (event_type == p_latEvent) {
 535     updateLatency(value, date);
 536     if (tmgr_trace_event_free(event_type))
 537       p_latEvent = NULL;
 538   } else if (event_type == p_stateEvent) {
 539     if (value > 0)
 540       setState(SURF_RESOURCE_ON);
 541     else
 542       setState(SURF_RESOURCE_OFF);
 543     if (tmgr_trace_event_free(event_type))
 544       p_stateEvent = NULL;
 545   } else {
 546     XBT_CRITICAL("Unknown event ! \n");
 547     xbt_abort();
 548   }
 549   return;
 550 }
 551
 552 e_surf_resource_state_t WorkstationL07::getState()
 553 {
 554   return p_cpu->getState();
 555 }
 556
 557 ActionPtr WorkstationL07::execute(double size)
 558 {
 559   void **workstation_list = xbt_new0(void *, 1);
 560   double *computation_amount = xbt_new0(double, 1);
 561   double *communication_amount = xbt_new0(double, 1);
 562
 563   workstation_list[0] = this;
 564   communication_amount[0] = 0.0;
 565   computation_amount[0] = size;
 566
 567   return static_cast<WorkstationL07ModelPtr>(getModel())->executeParallelTask(1, workstation_list,
 568                                               computation_amount,
 569                                      communication_amount, -1);
 570 }
 571
 572 ActionPtr WorkstationL07::sleep(double duration)
 573 {
 574   WorkstationL07ActionPtr action = NULL;
 575
 576   XBT_IN("(%s,%g)", getName(), duration);
 577
 578   action = static_cast<WorkstationL07ActionPtr>(execute(1.0));
 579   action->m_maxDuration = duration;
 580   action->m_suspended = 2;
 581   lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
 582
 583   XBT_OUT();
 584   return action;
 585 }
 586
 587 double LinkL07::getBandwidth()
 588 {
 589   return m_bwCurrent;
 590 }
 591
 592 void LinkL07::updateBandwidth(double value, double date)
 593 {
 594   m_bwCurrent = value;
 595   lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_bwCurrent);
 596 }
 597
 598 double LinkL07::getLatency()
 599 {
 600   return m_latCurrent;
 601 }
 602
 603 void LinkL07::updateLatency(double value, double date)
 604 {
 605   lmm_variable_t var = NULL;
 606   WorkstationL07ActionPtr action;
 607   lmm_element_t elem = NULL;
 608
 609   m_latCurrent = value;
 610   while ((var = lmm_get_var_from_cnst(ptask_maxmin_system, getConstraint(), &elem))) {
 611     action = (WorkstationL07ActionPtr) lmm_variable_id(var);
 612     action->updateBound();
 613   }
 614 }
 615
 616
 617 bool LinkL07::isShared()
 618 {
 619   return lmm_constraint_is_shared(getConstraint());
 620 }
 621
 622 /**********
 623  * Action *
 624  **********/
 625
 626 WorkstationL07Action::~WorkstationL07Action(){
 627   free(p_workstationList);
 628   free(p_communicationAmount);
 629   free(p_computationAmount);
 630 }
 631
 632 void WorkstationL07Action::updateBound()
 633 {
 634   double lat_current = 0.0;
 635   double lat_bound = -1.0;
 636   int i, j;
 637
 638   for (i = 0; i < m_workstationNb; i++) {
 639     for (j = 0; j < m_workstationNb; j++) {
 640       xbt_dynar_t route=NULL;
 641
 642       if (p_communicationAmount[i * m_workstationNb + j] > 0) {
 643         double lat = 0.0;
 644         routing_platf->getRouteAndLatency(static_cast<WorkstationL07Ptr>(((void**)p_workstationList)[i])->p_netElm,
 645                                           static_cast<WorkstationL07Ptr>(((void**)p_workstationList)[j])->p_netElm,
 646                                                           &route, &lat);
 647
 648         lat_current = MAX(lat_current, lat * p_communicationAmount[i * m_workstationNb + j]);
 649       }
 650     }
 651   }
 652   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 653   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 654   if ((m_latency == 0.0) && (m_suspended == 0)) {
 655     if (m_rate < 0)
 656       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), lat_bound);
 657     else
 658       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), min(m_rate, lat_bound));
 659   }
 660 }
 661
 662 int WorkstationL07Action::unref()
 663 {
 664   m_refcount--;
 665   if (!m_refcount) {
 666     if (actionHook::is_linked())
 667           p_stateSet->erase(p_stateSet->iterator_to(*this));
 668     if (getVariable())
 669       lmm_variable_free(ptask_maxmin_system, getVariable());
 670     delete this;
 671     return 1;
 672   }
 673   return 0;
 674 }
 675
 676 void WorkstationL07Action::cancel()
 677 {
 678   setState(SURF_ACTION_FAILED);
 679   return;
 680 }
 681
 682 void WorkstationL07Action::suspend()
 683 {
 684   XBT_IN("(%p))", this);
 685   if (m_suspended != 2) {
 686     m_suspended = 1;
 687     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 0.0);
 688   }
 689   XBT_OUT();
 690 }
 691
 692 void WorkstationL07Action::resume()
 693 {
 694   XBT_IN("(%p)", this);
 695   if (m_suspended != 2) {
 696     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 1.0);
 697     m_suspended = 0;
 698   }
 699   XBT_OUT();
 700 }
 701
 702 bool WorkstationL07Action::isSuspended()
 703 {
 704   return m_suspended == 1;
 705 }
 706
 707 void WorkstationL07Action::setMaxDuration(double duration)
 708 {                               /* FIXME: should inherit */
 709   XBT_IN("(%p,%g)", this, duration);
 710   m_maxDuration = duration;
 711   XBT_OUT();
 712 }
 713
 714 void WorkstationL07Action::setPriority(double priority)
 715 {                               /* FIXME: should inherit */
 716   XBT_IN("(%p,%g)", this, priority);
 717   m_priority = priority;
 718   XBT_OUT();
 719 }
 720
 721 double WorkstationL07Action::getRemains()
 722 {
 723   XBT_IN("(%p)", this);
 724   XBT_OUT();
 725   return m_remains;
 726 }