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
  17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
  18
  19 /**************************************/
  20 /*** Resource Creation & Destruction **/
  21 /**************************************/
  22
  23 static void ptask_netlink_parse_init(sg_platf_link_cbarg_t link)
  24 {
  25   netlink_parse_init(link);
  26   current_property_set = NULL;
  27 }
  28
  29 void surf_host_model_init_ptask_L07(void)
  30 {
  31   XBT_INFO("Switching to the L07 model to handle parallel tasks.");
  32   xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
  33   xbt_assert(!surf_network_model, "network model type already defined");
  34
  35   // Define the callbacks to parse the XML
  36   sg_platf_link_add_cb(ptask_netlink_parse_init);
  37   sg_platf_postparse_add_cb(host_add_traces);
  38
  39   surf_host_model = new simgrid::surf::HostL07Model();
  40   xbt_dynar_push(all_existing_models, &surf_host_model);
  41 }
  42
  43
  44 namespace simgrid {
  45 namespace surf {
  46
  47 HostL07Model::HostL07Model() : HostModel() {
  48   p_maxminSystem = lmm_system_new(1);
  49   surf_network_model = new NetworkL07Model(this,p_maxminSystem);
  50   surf_cpu_model_pm = new CpuL07Model(this,p_maxminSystem);
  51
  52   routing_model_create(surf_network_model->createLink("__loopback__",
  53                                                           498000000, NULL,
  54                                                           0.000015, NULL,
  55                                                           1/*ON*/, NULL,
  56                                                           SURF_LINK_FATPIPE, NULL));
  57 }
  58
  59 HostL07Model::~HostL07Model() {
  60   delete surf_cpu_model_pm;
  61   delete surf_network_model;
  62 }
  63
  64 CpuL07Model::CpuL07Model(HostL07Model *hmodel,lmm_system_t sys)
  65         : CpuModel()
  66         , p_hostModel(hmodel)
  67         {
  68           p_maxminSystem = sys;
  69         }
  70 CpuL07Model::~CpuL07Model() {
  71         surf_cpu_model_pm = NULL;
  72         p_maxminSystem = NULL; // Avoid multi-free
  73 }
  74 NetworkL07Model::NetworkL07Model(HostL07Model *hmodel, lmm_system_t sys)
  75         : NetworkModel()
  76         , p_hostModel(hmodel)
  77         {
  78           p_maxminSystem = sys;
  79         }
  80 NetworkL07Model::~NetworkL07Model()
  81 {
  82         surf_network_model = NULL;
  83         p_maxminSystem = NULL; // Avoid multi-free
  84 }
  85
  86
  87 double HostL07Model::shareResources(double /*now*/)
  88 {
  89   L07Action *action;
  90
  91   ActionList *running_actions = getRunningActionSet();
  92   double min = this->shareResourcesMaxMin(running_actions,
  93                                               p_maxminSystem,
  94                                               bottleneck_solve);
  95
  96   for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
  97          ; it != itend ; ++it) {
  98         action = static_cast<L07Action*>(&*it);
  99     if (action->m_latency > 0) {
 100       if (min < 0) {
 101         min = action->m_latency;
 102         XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
 103                action->getStartTime(), min);
 104       } else if (action->m_latency < min) {
 105         min = action->m_latency;
 106         XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
 107                action->getStartTime(), min);
 108       }
 109     }
 110   }
 111
 112   XBT_DEBUG("min value : %f", min);
 113
 114   return min;
 115 }
 116
 117 void HostL07Model::updateActionsState(double /*now*/, double delta) {
 118
 119   L07Action *action;
 120   ActionList *actionSet = getRunningActionSet();
 121
 122   for(ActionList::iterator it = actionSet->begin(), itNext = it
 123          ; it != actionSet->end()
 124          ; it =  itNext) {
 125         ++itNext;
 126     action = static_cast<L07Action*>(&*it);
 127     if (action->m_latency > 0) {
 128       if (action->m_latency > delta) {
 129         double_update(&(action->m_latency), delta, sg_surf_precision);
 130       } else {
 131         action->m_latency = 0.0;
 132       }
 133       if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
 134         action->updateBound();
 135         lmm_update_variable_weight(p_maxminSystem, action->getVariable(), 1.0);
 136       }
 137     }
 138     XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
 139            action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
 140     action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
 141
 142     if (action->getMaxDuration() != NO_MAX_DURATION)
 143       action->updateMaxDuration(delta);
 144
 145     XBT_DEBUG("Action (%p) : remains (%g).", action, action->getRemains());
 146
 147     /* In the next if cascade, the action can be finished either because:
 148      *  - The amount of remaining work reached 0
 149      *  - The max duration was reached
 150      * If it's not done, it may have failed.
 151      */
 152
 153     if ((action->getRemains() <= 0) &&
 154         (lmm_get_variable_weight(action->getVariable()) > 0)) {
 155       action->finish();
 156       action->setState(SURF_ACTION_DONE);
 157     } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
 158                (action->getMaxDuration() <= 0)) {
 159       action->finish();
 160       action->setState(SURF_ACTION_DONE);
 161     } else {
 162       /* Need to check that none of the model has failed */
 163       lmm_constraint_t cnst = NULL;
 164       int i = 0;
 165
 166       while ((cnst = lmm_get_cnst_from_var(p_maxminSystem, action->getVariable(), i++))) {
 167         void *constraint_id = lmm_constraint_id(cnst);
 168
 169         if (static_cast<Host*>(constraint_id)->isOff()) {
 170           XBT_DEBUG("Action (%p) Failed!!", action);
 171           action->finish();
 172           action->setState(SURF_ACTION_FAILED);
 173           break;
 174         }
 175       }
 176     }
 177   }
 178   return;
 179 }
 180
 181 Action *HostL07Model::executeParallelTask(int host_nb, sg_host_t *host_list,
 182                   double *flops_amount, double *bytes_amount,
 183                   double rate) {
 184         return new L07Action(this, host_nb, host_list, flops_amount, bytes_amount, rate);
 185 }
 186
 187
 188 L07Action::L07Action(Model *model, int host_nb,
 189                 sg_host_t*host_list,
 190                 double *flops_amount,
 191                 double *bytes_amount,
 192                 double rate)
 193         : CpuAction(model, 1, 0)
 194 {
 195   unsigned int cpt;
 196   int nb_link = 0;
 197   int nb_used_host = 0; /* Only the hosts with something to compute (>0 flops) are counted) */
 198   double latency = 0.0;
 199
 200   xbt_dict_t ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
 201
 202   this->p_netcardList->reserve(host_nb);
 203   for (int i = 0; i<host_nb; i++)
 204           this->p_netcardList->push_back(host_list[i]->pimpl_netcard);
 205
 206   /* Compute the number of affected resources... */
 207   for (int i = 0; i < host_nb; i++) {
 208     for (int j = 0; j < host_nb; j++) {
 209       xbt_dynar_t route=NULL;
 210
 211       if (bytes_amount[i * host_nb + j] > 0) {
 212         double lat=0.0;
 213         unsigned int cpt;
 214         void *_link;
 215         LinkL07 *link;
 216
 217         routing_platf->getRouteAndLatency((*this->p_netcardList)[i], (*this->p_netcardList)[j],
 218                                                   &route, &lat);
 219         latency = MAX(latency, lat);
 220
 221         xbt_dynar_foreach(route, cpt, _link) {
 222            link = static_cast<LinkL07*>(_link);
 223            xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
 224         }
 225       }
 226     }
 227   }
 228
 229   nb_link = xbt_dict_length(ptask_parallel_task_link_set);
 230   xbt_dict_free(&ptask_parallel_task_link_set);
 231
 232   for (int i = 0; i < host_nb; i++)
 233     if (flops_amount[i] > 0)
 234       nb_used_host++;
 235
 236   XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
 237          this, host_nb, nb_link);
 238   this->p_computationAmount = flops_amount;
 239   this->p_communicationAmount = bytes_amount;
 240   this->m_latency = latency;
 241   this->m_rate = rate;
 242
 243   this->p_variable = lmm_variable_new(model->getMaxminSystem(), this, 1.0,
 244                                         (rate > 0 ? rate : -1.0),
 245                                                                                 host_nb + nb_link);
 246
 247   if (this->m_latency > 0)
 248     lmm_update_variable_weight(model->getMaxminSystem(), this->getVariable(), 0.0);
 249
 250   for (int i = 0; i < host_nb; i++)
 251     lmm_expand(model->getMaxminSystem(),
 252                host_list[i]->pimpl_cpu->getConstraint(),
 253                this->getVariable(), flops_amount[i]);
 254
 255   for (int i = 0; i < host_nb; i++) {
 256     for (int j = 0; j < host_nb; j++) {
 257       void *_link;
 258
 259       xbt_dynar_t route=NULL;
 260       if (bytes_amount[i * host_nb + j] == 0.0)
 261         continue;
 262
 263       routing_platf->getRouteAndLatency((*this->p_netcardList)[i], (*this->p_netcardList)[j],
 264                                             &route, NULL);
 265
 266       xbt_dynar_foreach(route, cpt, _link) {
 267         LinkL07 *link = static_cast<LinkL07*>(_link);
 268         lmm_expand_add(model->getMaxminSystem(), link->getConstraint(),
 269                        this->getVariable(),
 270                        bytes_amount[i * host_nb + j]);
 271       }
 272     }
 273   }
 274
 275   if (nb_link + nb_used_host == 0) {
 276     this->setCost(1.0);
 277     this->setRemains(0.0);
 278   }
 279 }
 280
 281 Action *NetworkL07Model::communicate(NetCard *src, NetCard *dst,
 282                                        double size, double rate)
 283 {
 284   sg_host_t*host_list = xbt_new0(sg_host_t, 2);
 285   double *flops_amount = xbt_new0(double, 2);
 286   double *bytes_amount = xbt_new0(double, 4);
 287   Action *res = NULL;
 288
 289   host_list[0] = sg_host_by_name(src->getName());
 290   host_list[1] = sg_host_by_name(dst->getName());
 291   bytes_amount[1] = size;
 292
 293   res = p_hostModel->executeParallelTask(2, host_list,
 294                                     flops_amount,
 295                                     bytes_amount, rate);
 296
 297   return res;
 298 }
 299
 300 Cpu *CpuL07Model::createCpu(simgrid::s4u::Host *host,  xbt_dynar_t powerPeakList,
 301                           int pstate, double power_scale,
 302                           tmgr_trace_t power_trace, int core,
 303                           int initiallyOn,
 304                           tmgr_trace_t state_trace)
 305 {
 306   CpuL07 *cpu = new CpuL07(this, host, powerPeakList, pstate, power_scale, power_trace,
 307                          core, initiallyOn, state_trace);
 308   return cpu;
 309 }
 310
 311 Link* NetworkL07Model::createLink(const char *name,
 312                                  double bw_initial,
 313                                  tmgr_trace_t bw_trace,
 314                                  double lat_initial,
 315                                  tmgr_trace_t lat_trace,
 316                                  int initiallyOn,
 317                                  tmgr_trace_t state_trace,
 318                                  e_surf_link_sharing_policy_t policy,
 319                                  xbt_dict_t properties)
 320 {
 321   xbt_assert(!Link::byName(name),
 322                  "Link '%s' declared several times in the platform file.", name);
 323
 324   Link* link = new LinkL07(this, name, properties,
 325                              bw_initial, bw_trace,
 326                                          lat_initial, lat_trace,
 327                                          initiallyOn, state_trace,
 328                                          policy);
 329   Link::onCreation(link);
 330   return link;
 331 }
 332
 333 void HostL07Model::addTraces()
 334 {
 335   xbt_dict_cursor_t cursor = NULL;
 336   char *trace_name, *elm;
 337
 338   if (!trace_connect_list_host_avail)
 339     return;
 340
 341   /* Connect traces relative to cpu */
 342   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 343     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 344     CpuL07 *host = static_cast<CpuL07*>(sg_host_by_name(elm)->pimpl_cpu);
 345
 346     xbt_assert(host, "Host %s undefined", elm);
 347     xbt_assert(trace, "Trace %s undefined", trace_name);
 348
 349     host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 350   }
 351
 352   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 353     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 354     CpuL07 *host = static_cast<CpuL07*>(sg_host_by_name(elm)->pimpl_cpu);
 355
 356     xbt_assert(host, "Host %s undefined", elm);
 357     xbt_assert(trace, "Trace %s undefined", trace_name);
 358
 359     host->p_speedEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 360   }
 361
 362   /* Connect traces relative to network */
 363   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 364     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 365     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 366
 367     xbt_assert(link, "Link %s undefined", elm);
 368     xbt_assert(trace, "Trace %s undefined", trace_name);
 369
 370     link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 371   }
 372
 373   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
 374     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 375     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 376
 377     xbt_assert(link, "Link %s undefined", elm);
 378     xbt_assert(trace, "Trace %s undefined", trace_name);
 379
 380     link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 381   }
 382
 383   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
 384     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 385     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 386
 387     xbt_assert(link, "Link %s undefined", elm);
 388     xbt_assert(trace, "Trace %s undefined", trace_name);
 389
 390     link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 391   }
 392 }
 393
 394 /************
 395  * Resource *
 396  ************/
 397
 398 CpuL07::CpuL07(CpuL07Model *model, simgrid::s4u::Host *host,
 399                      xbt_dynar_t speedPeakList, int pstate,
 400                                  double speedScale, tmgr_trace_t speedTrace,
 401                          int core, int initiallyOn, tmgr_trace_t state_trace)
 402  : Cpu(model, host, speedPeakList, pstate,
 403            core, xbt_dynar_get_as(speedPeakList,pstate,double), speedScale, initiallyOn)
 404 {
 405   p_constraint = lmm_constraint_new(model->getMaxminSystem(), this, xbt_dynar_get_as(speedPeakList,pstate,double) * speedScale);
 406
 407   if (speedTrace)
 408     p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
 409   else
 410     p_speedEvent = NULL;
 411
 412   if (state_trace)
 413         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 414 }
 415
 416 CpuL07::~CpuL07()
 417 {
 418 }
 419
 420 LinkL07::LinkL07(NetworkL07Model *model, const char* name, xbt_dict_t props,
 421                          double bw_initial,
 422                          tmgr_trace_t bw_trace,
 423                          double lat_initial,
 424                          tmgr_trace_t lat_trace,
 425                          int initiallyOn,
 426                          tmgr_trace_t state_trace,
 427                          e_surf_link_sharing_policy_t policy)
 428  : Link(model, name, props, lmm_constraint_new(model->getMaxminSystem(), this, bw_initial), history, state_trace)
 429 {
 430   m_bwCurrent = bw_initial;
 431   if (bw_trace)
 432     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 433
 434   if (initiallyOn)
 435     turnOn();
 436   else
 437     turnOff();
 438   m_latCurrent = lat_initial;
 439
 440   if (lat_trace)
 441         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 442
 443   if (policy == SURF_LINK_FATPIPE)
 444         lmm_constraint_shared(getConstraint());
 445 }
 446
 447 Action *CpuL07::execute(double size)
 448 {
 449   sg_host_t*host_list = xbt_new0(sg_host_t, 1);
 450   double *flops_amount = xbt_new0(double, 1);
 451   double *bytes_amount = xbt_new0(double, 1);
 452
 453   host_list[0] = getHost();
 454   flops_amount[0] = size;
 455
 456   return static_cast<CpuL07Model*>(getModel())
 457     ->p_hostModel
 458     ->executeParallelTask( 1, host_list, flops_amount, bytes_amount, -1);
 459 }
 460
 461 Action *CpuL07::sleep(double duration)
 462 {
 463   L07Action *action = NULL;
 464
 465   XBT_IN("(%s,%g)", getName(), duration);
 466
 467   action = static_cast<L07Action*>(execute(1.0));
 468   action->m_maxDuration = duration;
 469   action->m_suspended = 2;
 470   lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), 0.0);
 471
 472   XBT_OUT();
 473   return action;
 474 }
 475
 476 bool CpuL07::isUsed(){
 477   return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
 478 }
 479
 480 /** @brief take into account changes of speed (either load or max) */
 481 void CpuL07::onSpeedChange() {
 482         lmm_variable_t var = NULL;
 483         lmm_element_t elem = NULL;
 484
 485     lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_speedPeak * m_speedScale);
 486     while ((var = lmm_get_var_from_cnst
 487             (getModel()->getMaxminSystem(), getConstraint(), &elem))) {
 488       Action *action = static_cast<Action*>(lmm_variable_id(var));
 489
 490       lmm_update_variable_bound(getModel()->getMaxminSystem(),
 491                                 action->getVariable(),
 492                                 m_speedScale * m_speedPeak);
 493     }
 494
 495         Cpu::onSpeedChange();
 496 }
 497
 498
 499 bool LinkL07::isUsed(){
 500   return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
 501 }
 502
 503 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
 504   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
 505   if (event_type == p_speedEvent) {
 506         m_speedScale = value;
 507         onSpeedChange();
 508     if (tmgr_trace_event_free(event_type))
 509       p_speedEvent = NULL;
 510   } else if (event_type == p_stateEvent) {
 511     if (value > 0)
 512       turnOn();
 513     else
 514       turnOff();
 515     if (tmgr_trace_event_free(event_type))
 516       p_stateEvent = NULL;
 517   } else {
 518     XBT_CRITICAL("Unknown event ! \n");
 519     xbt_abort();
 520   }
 521   return;
 522 }
 523
 524 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date) {
 525   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
 526   if (event_type == p_bwEvent) {
 527     updateBandwidth(value, date);
 528     if (tmgr_trace_event_free(event_type))
 529       p_bwEvent = NULL;
 530   } else if (event_type == p_latEvent) {
 531     updateLatency(value, date);
 532     if (tmgr_trace_event_free(event_type))
 533       p_latEvent = NULL;
 534   } else if (event_type == p_stateEvent) {
 535     if (value > 0)
 536       turnOn();
 537     else
 538       turnOff();
 539     if (tmgr_trace_event_free(event_type))
 540       p_stateEvent = NULL;
 541   } else {
 542     XBT_CRITICAL("Unknown event ! \n");
 543     xbt_abort();
 544   }
 545   return;
 546 }
 547
 548 double LinkL07::getBandwidth()
 549 {
 550   return m_bwCurrent;
 551 }
 552
 553 void LinkL07::updateBandwidth(double value, double date)
 554 {
 555   m_bwCurrent = value;
 556   lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_bwCurrent);
 557 }
 558
 559 void LinkL07::updateLatency(double value, double date)
 560 {
 561   lmm_variable_t var = NULL;
 562   L07Action *action;
 563   lmm_element_t elem = NULL;
 564
 565   m_latCurrent = value;
 566   while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
 567     action = static_cast<L07Action*>(lmm_variable_id(var));
 568     action->updateBound();
 569   }
 570 }
 571
 572 /**********
 573  * Action *
 574  **********/
 575
 576 L07Action::~L07Action(){
 577   free(p_communicationAmount);
 578   free(p_computationAmount);
 579 }
 580
 581 void L07Action::updateBound()
 582 {
 583   double lat_current = 0.0;
 584   double lat_bound = -1.0;
 585   int i, j;
 586
 587   int hostNb = p_netcardList->size();
 588
 589   for (i = 0; i < hostNb; i++) {
 590     for (j = 0; j < hostNb; j++) {
 591       xbt_dynar_t route=NULL;
 592
 593       if (p_communicationAmount[i * hostNb + j] > 0) {
 594         double lat = 0.0;
 595         routing_platf->getRouteAndLatency((*p_netcardList)[i], (*p_netcardList)[j],
 596                                                           &route, &lat);
 597
 598         lat_current = MAX(lat_current, lat * p_communicationAmount[i * hostNb + j]);
 599       }
 600     }
 601   }
 602   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 603   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 604   if ((m_latency == 0.0) && (m_suspended == 0)) {
 605     if (m_rate < 0)
 606       lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(), lat_bound);
 607     else
 608       lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(),
 609         std::min(m_rate, lat_bound));
 610   }
 611 }
 612
 613 int L07Action::unref()
 614 {
 615   m_refcount--;
 616   if (!m_refcount) {
 617     if (action_hook.is_linked())
 618           p_stateSet->erase(p_stateSet->iterator_to(*this));
 619     if (getVariable())
 620       lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
 621     delete this;
 622     return 1;
 623   }
 624   return 0;
 625 }
 626
 627 void L07Action::suspend()
 628 {
 629   XBT_IN("(%p))", this);
 630   if (m_suspended != 2) {
 631     m_suspended = 1;
 632     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
 633   }
 634   XBT_OUT();
 635 }
 636
 637 void L07Action::resume()
 638 {
 639   XBT_IN("(%p)", this);
 640   if (m_suspended != 2) {
 641     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 1.0);
 642     m_suspended = 0;
 643   }
 644   XBT_OUT();
 645 }
 646
 647 void L07Action::setMaxDuration(double duration)
 648 {                               /* FIXME: should inherit */
 649   XBT_IN("(%p,%g)", this, duration);
 650   m_maxDuration = duration;
 651   XBT_OUT();
 652 }
 653
 654 void L07Action::setPriority(double priority)
 655 {                               /* FIXME: should inherit */
 656   XBT_IN("(%p,%g)", this, priority);
 657   m_priority = priority;
 658   XBT_OUT();
 659 }
 660
 661 double L07Action::getRemains()
 662 {
 663   XBT_IN("(%p)", this);
 664   XBT_OUT();
 665   return m_remains;
 666 }
 667
 668 }
 669 }