src/surf/host_ptask_L07.cpp

   1 /* Copyright (c) 2007-2010, 2013-2015. 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 <cstdlib>
   8
   9 #include <algorithm>
  10
  11 #include "host_ptask_L07.hpp"
  12
  13 #include "cpu_interface.hpp"
  14 #include "surf_routing.hpp"
  15 #include "xbt/lib.h"
  16 #include "src/surf/platform.hpp"
  17
  18 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
  19 XBT_LOG_EXTERNAL_CATEGORY(xbt_cfg);
  20
  21 /**************************************/
  22 /*** Resource Creation & Destruction **/
  23 /**************************************/
  24
  25 static void ptask_netlink_parse_init(sg_platf_link_cbarg_t link)
  26 {
  27   netlink_parse_init(link);
  28   current_property_set = NULL;
  29 }
  30
  31 void surf_host_model_init_ptask_L07(void)
  32 {
  33   XBT_CINFO(xbt_cfg,"Switching to the L07 model to handle parallel tasks.");
  34   xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
  35   xbt_assert(!surf_network_model, "network model type already defined");
  36
  37   // Define the callbacks to parse the XML
  38   simgrid::surf::on_link.connect(ptask_netlink_parse_init);
  39   simgrid::surf::on_postparse.connect([](){
  40       surf_host_model->addTraces();
  41   });
  42
  43   surf_host_model = new simgrid::surf::HostL07Model();
  44   xbt_dynar_push(all_existing_models, &surf_host_model);
  45 }
  46
  47
  48 namespace simgrid {
  49 namespace surf {
  50
  51 HostL07Model::HostL07Model() : HostModel() {
  52   p_maxminSystem = lmm_system_new(1);
  53   surf_network_model = new NetworkL07Model(this,p_maxminSystem);
  54   surf_cpu_model_pm = new CpuL07Model(this,p_maxminSystem);
  55
  56   routing_model_create(surf_network_model->createLink("__loopback__",
  57                                                           498000000, NULL,
  58                                                           0.000015, NULL,
  59                                                           1/*ON*/, NULL,
  60                                                           SURF_LINK_FATPIPE, NULL));
  61 }
  62
  63 HostL07Model::~HostL07Model() {
  64   delete surf_cpu_model_pm;
  65   delete surf_network_model;
  66 }
  67
  68 CpuL07Model::CpuL07Model(HostL07Model *hmodel,lmm_system_t sys)
  69         : CpuModel()
  70         , p_hostModel(hmodel)
  71         {
  72           p_maxminSystem = sys;
  73         }
  74 CpuL07Model::~CpuL07Model() {
  75         surf_cpu_model_pm = NULL;
  76         p_maxminSystem = NULL; // Avoid multi-free
  77 }
  78 NetworkL07Model::NetworkL07Model(HostL07Model *hmodel, lmm_system_t sys)
  79         : NetworkModel()
  80         , p_hostModel(hmodel)
  81         {
  82           p_maxminSystem = sys;
  83         }
  84 NetworkL07Model::~NetworkL07Model()
  85 {
  86         surf_network_model = NULL;
  87         p_maxminSystem = NULL; // Avoid multi-free
  88 }
  89
  90
  91 double HostL07Model::shareResources(double /*now*/)
  92 {
  93   L07Action *action;
  94
  95   ActionList *running_actions = getRunningActionSet();
  96   double min = this->shareResourcesMaxMin(running_actions,
  97                                               p_maxminSystem,
  98                                               bottleneck_solve);
  99
 100   for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
 101          ; it != itend ; ++it) {
 102         action = static_cast<L07Action*>(&*it);
 103     if (action->m_latency > 0) {
 104       if (min < 0) {
 105         min = action->m_latency;
 106         XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
 107                action->getStartTime(), min);
 108       } else if (action->m_latency < min) {
 109         min = action->m_latency;
 110         XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
 111                action->getStartTime(), min);
 112       }
 113     }
 114   }
 115
 116   XBT_DEBUG("min value : %f", min);
 117
 118   return min;
 119 }
 120
 121 void HostL07Model::updateActionsState(double /*now*/, double delta) {
 122
 123   L07Action *action;
 124   ActionList *actionSet = getRunningActionSet();
 125
 126   for(ActionList::iterator it = actionSet->begin(), itNext = it
 127          ; it != actionSet->end()
 128          ; it =  itNext) {
 129         ++itNext;
 130     action = static_cast<L07Action*>(&*it);
 131     if (action->m_latency > 0) {
 132       if (action->m_latency > delta) {
 133         double_update(&(action->m_latency), delta, sg_surf_precision);
 134       } else {
 135         action->m_latency = 0.0;
 136       }
 137       if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
 138         action->updateBound();
 139         lmm_update_variable_weight(p_maxminSystem, action->getVariable(), 1.0);
 140       }
 141     }
 142     XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
 143            action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
 144     action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
 145
 146     if (action->getMaxDuration() != NO_MAX_DURATION)
 147       action->updateMaxDuration(delta);
 148
 149     XBT_DEBUG("Action (%p) : remains (%g).", action, action->getRemains());
 150
 151     /* In the next if cascade, the action can be finished either because:
 152      *  - The amount of remaining work reached 0
 153      *  - The max duration was reached
 154      * If it's not done, it may have failed.
 155      */
 156
 157     if ((action->getRemains() <= 0) &&
 158         (lmm_get_variable_weight(action->getVariable()) > 0)) {
 159       action->finish();
 160       action->setState(SURF_ACTION_DONE);
 161     } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
 162                (action->getMaxDuration() <= 0)) {
 163       action->finish();
 164       action->setState(SURF_ACTION_DONE);
 165     } else {
 166       /* Need to check that none of the model has failed */
 167       lmm_constraint_t cnst = NULL;
 168       int i = 0;
 169
 170       while ((cnst = lmm_get_cnst_from_var(p_maxminSystem, action->getVariable(), i++))) {
 171         void *constraint_id = lmm_constraint_id(cnst);
 172
 173         if (static_cast<Host*>(constraint_id)->isOff()) {
 174           XBT_DEBUG("Action (%p) Failed!!", action);
 175           action->finish();
 176           action->setState(SURF_ACTION_FAILED);
 177           break;
 178         }
 179       }
 180     }
 181   }
 182   return;
 183 }
 184
 185 Action *HostL07Model::executeParallelTask(int host_nb, sg_host_t *host_list,
 186                   double *flops_amount, double *bytes_amount,
 187                   double rate) {
 188         return new L07Action(this, host_nb, host_list, flops_amount, bytes_amount, rate);
 189 }
 190
 191
 192 L07Action::L07Action(Model *model, int host_nb,
 193                 sg_host_t*host_list,
 194                 double *flops_amount,
 195                 double *bytes_amount,
 196                 double rate)
 197         : CpuAction(model, 1, 0)
 198 {
 199   unsigned int cpt;
 200   int nb_link = 0;
 201   int nb_used_host = 0; /* Only the hosts with something to compute (>0 flops) are counted) */
 202   double latency = 0.0;
 203
 204   xbt_dict_t ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
 205
 206   this->p_netcardList->reserve(host_nb);
 207   for (int i = 0; i<host_nb; i++)
 208           this->p_netcardList->push_back(host_list[i]->pimpl_netcard);
 209
 210   /* Compute the number of affected resources... */
 211   for (int i = 0; i < host_nb; i++) {
 212     for (int j = 0; j < host_nb; j++) {
 213       xbt_dynar_t route=NULL;
 214
 215       if (bytes_amount[i * host_nb + j] > 0) {
 216         double lat=0.0;
 217         unsigned int cpt;
 218         void *_link;
 219         LinkL07 *link;
 220
 221         routing_platf->getRouteAndLatency((*this->p_netcardList)[i], (*this->p_netcardList)[j],
 222                                                   &route, &lat);
 223         latency = MAX(latency, lat);
 224
 225         xbt_dynar_foreach(route, cpt, _link) {
 226            link = static_cast<LinkL07*>(_link);
 227            xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
 228         }
 229       }
 230     }
 231   }
 232
 233   nb_link = xbt_dict_length(ptask_parallel_task_link_set);
 234   xbt_dict_free(&ptask_parallel_task_link_set);
 235
 236   for (int i = 0; i < host_nb; i++)
 237     if (flops_amount[i] > 0)
 238       nb_used_host++;
 239
 240   XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
 241          this, host_nb, nb_link);
 242   this->p_computationAmount = flops_amount;
 243   this->p_communicationAmount = bytes_amount;
 244   this->m_latency = latency;
 245   this->m_rate = rate;
 246
 247   this->p_variable = lmm_variable_new(model->getMaxminSystem(), this, 1.0,
 248                                         (rate > 0 ? rate : -1.0),
 249                                                                                 host_nb + nb_link);
 250
 251   if (this->m_latency > 0)
 252     lmm_update_variable_weight(model->getMaxminSystem(), this->getVariable(), 0.0);
 253
 254   for (int i = 0; i < host_nb; i++)
 255     lmm_expand(model->getMaxminSystem(),
 256                host_list[i]->pimpl_cpu->getConstraint(),
 257                this->getVariable(), flops_amount[i]);
 258
 259   for (int i = 0; i < host_nb; i++) {
 260     for (int j = 0; j < host_nb; j++) {
 261       void *_link;
 262
 263       xbt_dynar_t route=NULL;
 264       if (bytes_amount[i * host_nb + j] == 0.0)
 265         continue;
 266
 267       routing_platf->getRouteAndLatency((*this->p_netcardList)[i], (*this->p_netcardList)[j],
 268                                             &route, NULL);
 269
 270       xbt_dynar_foreach(route, cpt, _link) {
 271         LinkL07 *link = static_cast<LinkL07*>(_link);
 272         lmm_expand_add(model->getMaxminSystem(), link->getConstraint(),
 273                        this->getVariable(),
 274                        bytes_amount[i * host_nb + j]);
 275       }
 276     }
 277   }
 278
 279   if (nb_link + nb_used_host == 0) {
 280     this->setCost(1.0);
 281     this->setRemains(0.0);
 282   }
 283 }
 284
 285 Action *NetworkL07Model::communicate(NetCard *src, NetCard *dst,
 286                                        double size, double rate)
 287 {
 288   sg_host_t*host_list = xbt_new0(sg_host_t, 2);
 289   double *flops_amount = xbt_new0(double, 2);
 290   double *bytes_amount = xbt_new0(double, 4);
 291   Action *res = NULL;
 292
 293   host_list[0] = sg_host_by_name(src->getName());
 294   host_list[1] = sg_host_by_name(dst->getName());
 295   bytes_amount[1] = size;
 296
 297   res = p_hostModel->executeParallelTask(2, host_list,
 298                                     flops_amount,
 299                                     bytes_amount, rate);
 300
 301   return res;
 302 }
 303
 304 Cpu *CpuL07Model::createCpu(simgrid::s4u::Host *host,  xbt_dynar_t powerPeakList,
 305                           int pstate, double power_scale,
 306                           tmgr_trace_t power_trace, int core,
 307                           int initiallyOn,
 308                           tmgr_trace_t state_trace)
 309 {
 310   CpuL07 *cpu = new CpuL07(this, host, powerPeakList, pstate, power_scale, power_trace,
 311                          core, initiallyOn, state_trace);
 312   return cpu;
 313 }
 314
 315 Link* NetworkL07Model::createLink(const char *name,
 316                                  double bw_initial,
 317                                  tmgr_trace_t bw_trace,
 318                                  double lat_initial,
 319                                  tmgr_trace_t lat_trace,
 320                                  int initiallyOn,
 321                                  tmgr_trace_t state_trace,
 322                                  e_surf_link_sharing_policy_t policy,
 323                                  xbt_dict_t properties)
 324 {
 325   xbt_assert(!Link::byName(name),
 326                  "Link '%s' declared several times in the platform file.", name);
 327
 328   Link* link = new LinkL07(this, name, properties,
 329                              bw_initial, bw_trace,
 330                                          lat_initial, lat_trace,
 331                                          initiallyOn, state_trace,
 332                                          policy);
 333   Link::onCreation(link);
 334   return link;
 335 }
 336
 337 void HostL07Model::addTraces()
 338 {
 339   xbt_dict_cursor_t cursor = NULL;
 340   char *trace_name, *elm;
 341
 342   if (!trace_connect_list_host_avail)
 343     return;
 344
 345   /* Connect traces relative to cpu */
 346   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 347     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 348     CpuL07 *host = static_cast<CpuL07*>(sg_host_by_name(elm)->pimpl_cpu);
 349
 350     xbt_assert(host, "Host %s undefined", elm);
 351     xbt_assert(trace, "Trace %s undefined", trace_name);
 352
 353     host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 354   }
 355
 356   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 357     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 358     CpuL07 *host = static_cast<CpuL07*>(sg_host_by_name(elm)->pimpl_cpu);
 359
 360     xbt_assert(host, "Host %s undefined", elm);
 361     xbt_assert(trace, "Trace %s undefined", trace_name);
 362
 363     host->p_speedEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 364   }
 365
 366   /* Connect traces relative to network */
 367   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 368     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 369     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 370
 371     xbt_assert(link, "Link %s undefined", elm);
 372     xbt_assert(trace, "Trace %s undefined", trace_name);
 373
 374     link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 375   }
 376
 377   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
 378     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 379     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 380
 381     xbt_assert(link, "Link %s undefined", elm);
 382     xbt_assert(trace, "Trace %s undefined", trace_name);
 383
 384     link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 385   }
 386
 387   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
 388     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 389     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 390
 391     xbt_assert(link, "Link %s undefined", elm);
 392     xbt_assert(trace, "Trace %s undefined", trace_name);
 393
 394     link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 395   }
 396 }
 397
 398 /************
 399  * Resource *
 400  ************/
 401
 402 CpuL07::CpuL07(CpuL07Model *model, simgrid::s4u::Host *host,
 403                      xbt_dynar_t speedPeakList, int pstate,
 404                                  double speedScale, tmgr_trace_t speedTrace,
 405                          int core, int initiallyOn, tmgr_trace_t state_trace)
 406  : Cpu(model, host, speedPeakList, pstate,
 407            core, xbt_dynar_get_as(speedPeakList,pstate,double), speedScale, initiallyOn)
 408 {
 409   p_constraint = lmm_constraint_new(model->getMaxminSystem(), this, xbt_dynar_get_as(speedPeakList,pstate,double) * speedScale);
 410
 411   if (speedTrace)
 412     p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
 413   else
 414     p_speedEvent = NULL;
 415
 416   if (state_trace)
 417         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 418 }
 419
 420 CpuL07::~CpuL07()
 421 {
 422 }
 423
 424 LinkL07::LinkL07(NetworkL07Model *model, const char* name, xbt_dict_t props,
 425                          double bw_initial,
 426                          tmgr_trace_t bw_trace,
 427                          double lat_initial,
 428                          tmgr_trace_t lat_trace,
 429                          int initiallyOn,
 430                          tmgr_trace_t state_trace,
 431                          e_surf_link_sharing_policy_t policy)
 432  : Link(model, name, props, lmm_constraint_new(model->getMaxminSystem(), this, bw_initial), history, state_trace)
 433 {
 434   m_bwCurrent = bw_initial;
 435   if (bw_trace)
 436     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 437
 438   if (initiallyOn)
 439     turnOn();
 440   else
 441     turnOff();
 442   m_latCurrent = lat_initial;
 443
 444   if (lat_trace)
 445         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 446
 447   if (policy == SURF_LINK_FATPIPE)
 448         lmm_constraint_shared(getConstraint());
 449 }
 450
 451 Action *CpuL07::execute(double size)
 452 {
 453   sg_host_t*host_list = xbt_new0(sg_host_t, 1);
 454   double *flops_amount = xbt_new0(double, 1);
 455   double *bytes_amount = xbt_new0(double, 1);
 456
 457   host_list[0] = getHost();
 458   flops_amount[0] = size;
 459
 460   return static_cast<CpuL07Model*>(getModel())
 461     ->p_hostModel
 462     ->executeParallelTask( 1, host_list, flops_amount, bytes_amount, -1);
 463 }
 464
 465 Action *CpuL07::sleep(double duration)
 466 {
 467   L07Action *action = NULL;
 468
 469   XBT_IN("(%s,%g)", getName(), duration);
 470
 471   action = static_cast<L07Action*>(execute(1.0));
 472   action->m_maxDuration = duration;
 473   action->m_suspended = 2;
 474   lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), 0.0);
 475
 476   XBT_OUT();
 477   return action;
 478 }
 479
 480 bool CpuL07::isUsed(){
 481   return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
 482 }
 483
 484 /** @brief take into account changes of speed (either load or max) */
 485 void CpuL07::onSpeedChange() {
 486         lmm_variable_t var = NULL;
 487         lmm_element_t elem = NULL;
 488
 489     lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_speedPeak * m_speedScale);
 490     while ((var = lmm_get_var_from_cnst
 491             (getModel()->getMaxminSystem(), getConstraint(), &elem))) {
 492       Action *action = static_cast<Action*>(lmm_variable_id(var));
 493
 494       lmm_update_variable_bound(getModel()->getMaxminSystem(),
 495                                 action->getVariable(),
 496                                 m_speedScale * m_speedPeak);
 497     }
 498
 499         Cpu::onSpeedChange();
 500 }
 501
 502
 503 bool LinkL07::isUsed(){
 504   return lmm_constraint_used(getModel()->getMaxminSystem(), 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_speedEvent) {
 510         m_speedScale = value;
 511         onSpeedChange();
 512     if (tmgr_trace_event_free(event_type))
 513       p_speedEvent = NULL;
 514   } else if (event_type == p_stateEvent) {
 515     if (value > 0)
 516       turnOn();
 517     else
 518       turnOff();
 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       turnOn();
 541     else
 542       turnOff();
 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 double LinkL07::getBandwidth()
 553 {
 554   return m_bwCurrent;
 555 }
 556
 557 void LinkL07::updateBandwidth(double value, double date)
 558 {
 559   m_bwCurrent = value;
 560   lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_bwCurrent);
 561 }
 562
 563 void LinkL07::updateLatency(double value, double date)
 564 {
 565   lmm_variable_t var = NULL;
 566   L07Action *action;
 567   lmm_element_t elem = NULL;
 568
 569   m_latCurrent = value;
 570   while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
 571     action = static_cast<L07Action*>(lmm_variable_id(var));
 572     action->updateBound();
 573   }
 574 }
 575
 576 /**********
 577  * Action *
 578  **********/
 579
 580 L07Action::~L07Action(){
 581   free(p_communicationAmount);
 582   free(p_computationAmount);
 583 }
 584
 585 void L07Action::updateBound()
 586 {
 587   double lat_current = 0.0;
 588   double lat_bound = -1.0;
 589   int i, j;
 590
 591   int hostNb = p_netcardList->size();
 592
 593   for (i = 0; i < hostNb; i++) {
 594     for (j = 0; j < hostNb; j++) {
 595       xbt_dynar_t route=NULL;
 596
 597       if (p_communicationAmount[i * hostNb + j] > 0) {
 598         double lat = 0.0;
 599         routing_platf->getRouteAndLatency((*p_netcardList)[i], (*p_netcardList)[j],
 600                                                           &route, &lat);
 601
 602         lat_current = MAX(lat_current, lat * p_communicationAmount[i * hostNb + j]);
 603       }
 604     }
 605   }
 606   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 607   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 608   if ((m_latency == 0.0) && (m_suspended == 0)) {
 609     if (m_rate < 0)
 610       lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(), lat_bound);
 611     else
 612       lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(),
 613         std::min(m_rate, lat_bound));
 614   }
 615 }
 616
 617 int L07Action::unref()
 618 {
 619   m_refcount--;
 620   if (!m_refcount) {
 621     if (action_hook.is_linked())
 622           p_stateSet->erase(p_stateSet->iterator_to(*this));
 623     if (getVariable())
 624       lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
 625     delete this;
 626     return 1;
 627   }
 628   return 0;
 629 }
 630
 631 void L07Action::suspend()
 632 {
 633   XBT_IN("(%p))", this);
 634   if (m_suspended != 2) {
 635     m_suspended = 1;
 636     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
 637   }
 638   XBT_OUT();
 639 }
 640
 641 void L07Action::resume()
 642 {
 643   XBT_IN("(%p)", this);
 644   if (m_suspended != 2) {
 645     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 1.0);
 646     m_suspended = 0;
 647   }
 648   XBT_OUT();
 649 }
 650
 651 void L07Action::setMaxDuration(double duration)
 652 {                               /* FIXME: should inherit */
 653   XBT_IN("(%p,%g)", this, duration);
 654   m_maxDuration = duration;
 655   XBT_OUT();
 656 }
 657
 658 void L07Action::setPriority(double priority)
 659 {                               /* FIXME: should inherit */
 660   XBT_IN("(%p,%g)", this, priority);
 661   m_priority = priority;
 662   XBT_OUT();
 663 }
 664
 665 double L07Action::getRemains()
 666 {
 667   XBT_IN("(%p)", this);
 668   XBT_OUT();
 669   return m_remains;
 670 }
 671
 672 }
 673 }