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 static int ptask_host_count = 0;
  20 static xbt_dict_t ptask_parallel_task_link_set = NULL;
  21 lmm_system_t ptask_maxmin_system = NULL;
  22
  23
  24 /**************************************/
  25 /*** Resource Creation & Destruction **/
  26 /**************************************/
  27
  28 static void ptask_netlink_parse_init(sg_platf_link_cbarg_t link)
  29 {
  30   netlink_parse_init(link);
  31   current_property_set = NULL;
  32 }
  33
  34 void surf_host_model_init_ptask_L07(void)
  35 {
  36   XBT_INFO("Switching to the L07 model to handle parallel tasks.");
  37   xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
  38   xbt_assert(!surf_network_model, "network model type already defined");
  39
  40   // Define the callbacks to parse the XML
  41   sg_platf_link_add_cb(ptask_netlink_parse_init);
  42   sg_platf_postparse_add_cb(host_add_traces);
  43
  44   surf_host_model = new simgrid::surf::HostL07Model();
  45   simgrid::surf::Model *model = surf_host_model;
  46   xbt_dynar_push(all_existing_models, &model);
  47 }
  48
  49
  50 namespace simgrid {
  51 namespace surf {
  52
  53 HostL07Model::HostL07Model() : HostModel() {
  54   if (!ptask_maxmin_system)
  55         ptask_maxmin_system = lmm_system_new(1);
  56   surf_host_model = NULL;
  57   surf_network_model = new NetworkL07Model(this);
  58   surf_cpu_model_pm = new CpuL07Model(this);
  59
  60   routing_model_create(surf_network_model->createLink("__loopback__",
  61                                                           498000000, NULL,
  62                                                           0.000015, NULL,
  63                                                           SURF_RESOURCE_ON, NULL,
  64                                                           SURF_LINK_FATPIPE, NULL));
  65 }
  66
  67 HostL07Model::~HostL07Model() {
  68   xbt_dict_free(&ptask_parallel_task_link_set);
  69
  70   delete surf_cpu_model_pm;
  71   delete surf_network_model;
  72   ptask_host_count = 0;
  73
  74   if (ptask_maxmin_system) {
  75     lmm_system_free(ptask_maxmin_system);
  76     ptask_maxmin_system = NULL;
  77   }
  78 }
  79
  80 double HostL07Model::shareResources(double /*now*/)
  81 {
  82   L07Action *action;
  83
  84   ActionList *running_actions = getRunningActionSet();
  85   double min = this->shareResourcesMaxMin(running_actions,
  86                                               ptask_maxmin_system,
  87                                               bottleneck_solve);
  88
  89   for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
  90          ; it != itend ; ++it) {
  91         action = static_cast<L07Action*>(&*it);
  92     if (action->m_latency > 0) {
  93       if (min < 0) {
  94         min = action->m_latency;
  95         XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
  96                action->getStartTime(), min);
  97       } else if (action->m_latency < min) {
  98         min = action->m_latency;
  99         XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
 100                action->getStartTime(), min);
 101       }
 102     }
 103   }
 104
 105   XBT_DEBUG("min value : %f", min);
 106
 107   return min;
 108 }
 109
 110 void HostL07Model::updateActionsState(double /*now*/, double delta) {
 111
 112   L07Action *action;
 113   ActionList *actionSet = getRunningActionSet();
 114
 115   for(ActionList::iterator it = actionSet->begin(), itNext = it
 116          ; it != actionSet->end()
 117          ; it =  itNext) {
 118         ++itNext;
 119     action = static_cast<L07Action*>(&*it);
 120     if (action->m_latency > 0) {
 121       if (action->m_latency > delta) {
 122         double_update(&(action->m_latency), delta, sg_surf_precision);
 123       } else {
 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).", action, action->getRemains());
 139
 140     /* In the next if cascade, the action can be finished either because:
 141      *  - The amount of remaining work reached 0
 142      *  - The max duration was reached
 143      * If it's not done, it may have failed.
 144      */
 145
 146     if ((action->getRemains() <= 0) &&
 147         (lmm_get_variable_weight(action->getVariable()) > 0)) {
 148       action->finish();
 149       action->setState(SURF_ACTION_DONE);
 150     } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
 151                (action->getMaxDuration() <= 0)) {
 152       action->finish();
 153       action->setState(SURF_ACTION_DONE);
 154     } else {
 155       /* Need to check that none of the model has failed */
 156       lmm_constraint_t cnst = NULL;
 157       int i = 0;
 158
 159       while ((cnst = lmm_get_cnst_from_var(ptask_maxmin_system, action->getVariable(), i++))) {
 160         void *constraint_id = lmm_constraint_id(cnst);
 161
 162         if (static_cast<Host*>(constraint_id)->getState() == SURF_RESOURCE_OFF) {
 163           XBT_DEBUG("Action (%p) Failed!!", action);
 164           action->finish();
 165           action->setState(SURF_ACTION_FAILED);
 166           break;
 167         }
 168       }
 169     }
 170   }
 171   return;
 172 }
 173
 174 Action *HostL07Model::executeParallelTask(int host_nb,
 175                                           sg_host_t*host_list,
 176                                                                                   double *flops_amount,
 177                                                                                   double *bytes_amount,
 178                                                                                   double rate)
 179 {
 180   L07Action *action = new L07Action(this, 1, 0);
 181   unsigned int cpt;
 182   int nb_link = 0;
 183   int nb_host = 0;
 184   double latency = 0.0;
 185
 186   action->p_edgeList->reserve(host_nb);
 187   for (int i = 0; i<host_nb; i++)
 188           action->p_edgeList->push_back(sg_host_edge(host_list[i]));
 189
 190   if (ptask_parallel_task_link_set == NULL)
 191     ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
 192
 193   xbt_dict_reset(ptask_parallel_task_link_set);
 194
 195   /* Compute the number of affected resources... */
 196   for (int i = 0; i < host_nb; i++) {
 197     for (int j = 0; j < host_nb; j++) {
 198       xbt_dynar_t route=NULL;
 199
 200       if (bytes_amount[i * host_nb + j] > 0) {
 201         double lat=0.0;
 202         unsigned int cpt;
 203         void *_link;
 204         LinkL07 *link;
 205
 206         routing_platf->getRouteAndLatency((*action->p_edgeList)[i], (*action->p_edgeList)[j],
 207                                                   &route, &lat);
 208         latency = MAX(latency, lat);
 209
 210         xbt_dynar_foreach(route, cpt, _link) {
 211            link = static_cast<LinkL07*>(_link);
 212            xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
 213         }
 214       }
 215     }
 216   }
 217
 218   nb_link = xbt_dict_length(ptask_parallel_task_link_set);
 219   xbt_dict_reset(ptask_parallel_task_link_set);
 220
 221   for (int i = 0; i < host_nb; i++)
 222     if (flops_amount[i] > 0)
 223       nb_host++;
 224
 225   XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
 226          action, host_nb, nb_link);
 227   action->m_suspended = 0; /* valgrind seems to want it despite the calloc... */
 228   action->p_computationAmount = flops_amount;
 229   action->p_communicationAmount = bytes_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                                         (rate > 0 ? rate : -1.0),
 235                                                                                 host_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 (int i = 0; i < host_nb; i++)
 241     lmm_expand(ptask_maxmin_system,
 242                sg_host_surfcpu(host_list[i])->getConstraint(),
 243                action->getVariable(), flops_amount[i]);
 244
 245   for (int i = 0; i < host_nb; i++) {
 246     for (int j = 0; j < host_nb; j++) {
 247       void *_link;
 248
 249       xbt_dynar_t route=NULL;
 250       if (bytes_amount[i * host_nb + j] == 0.0)
 251         continue;
 252
 253       routing_platf->getRouteAndLatency((*action->p_edgeList)[i], (*action->p_edgeList)[j],
 254                                             &route, NULL);
 255
 256       xbt_dynar_foreach(route, cpt, _link) {
 257         LinkL07 *link = static_cast<LinkL07*>(_link);
 258         lmm_expand_add(ptask_maxmin_system, link->getConstraint(),
 259                        action->getVariable(),
 260                        bytes_amount[i * host_nb + j]);
 261       }
 262     }
 263   }
 264
 265   if (nb_link + nb_host == 0) {
 266     action->setCost(1.0);
 267     action->setRemains(0.0);
 268   }
 269
 270   return action;
 271 }
 272
 273 Host *HostL07Model::createHost(const char *name,RoutingEdge *netElm, Cpu *cpu)
 274 {
 275   HostL07 *host = new HostL07(this, name, NULL, netElm, cpu);
 276
 277   surf_callback_emit(hostCreatedCallbacks, host);
 278   xbt_lib_set(host_lib, name, SURF_HOST_LEVEL, host);
 279
 280   return host;
 281 }
 282
 283 Action *NetworkL07Model::communicate(RoutingEdge *src, RoutingEdge *dst,
 284                                        double size, double rate)
 285 {
 286   sg_host_t*host_list = xbt_new0(sg_host_t, 2);
 287   double *flops_amount = xbt_new0(double, 2);
 288   double *bytes_amount = xbt_new0(double, 4);
 289   Action *res = NULL;
 290
 291   host_list[0] = sg_host_by_name(src->getName());
 292   host_list[1] = sg_host_by_name(dst->getName());
 293   bytes_amount[1] = size;
 294
 295   res = p_hostModel->executeParallelTask(2, host_list,
 296                                     flops_amount,
 297                                     bytes_amount, rate);
 298
 299   return res;
 300 }
 301
 302 xbt_dynar_t HostL07Model::getRoute(Host *src, Host *dst)
 303 {
 304   xbt_dynar_t route=NULL;
 305   routing_platf->getRouteAndLatency(src->p_netElm, dst->p_netElm, &route, NULL);
 306   return route;
 307 }
 308
 309 Cpu *CpuL07Model::createCpu(const char *name,  xbt_dynar_t powerPeak,
 310                           int pstate, double power_scale,
 311                           tmgr_trace_t power_trace, int core,
 312                           e_surf_resource_state_t state_initial,
 313                           tmgr_trace_t state_trace,
 314                           xbt_dict_t cpu_properties)
 315 {
 316   double power_initial = xbt_dynar_get_as(powerPeak, pstate, double);
 317   sg_host_t sg_host = sg_host_by_name(name);
 318
 319   CpuL07 *cpu = new CpuL07(this, name, cpu_properties,
 320                                      power_initial, power_scale, power_trace,
 321                          core, state_initial, state_trace);
 322   sg_host_surfcpu_register(sg_host, cpu);
 323   return cpu;
 324 }
 325
 326 Link* NetworkL07Model::createLink(const char *name,
 327                                  double bw_initial,
 328                                  tmgr_trace_t bw_trace,
 329                                  double lat_initial,
 330                                  tmgr_trace_t lat_trace,
 331                                  e_surf_resource_state_t state_initial,
 332                                  tmgr_trace_t state_trace,
 333                                  e_surf_link_sharing_policy_t policy,
 334                                  xbt_dict_t properties)
 335 {
 336   xbt_assert(!Link::byName(name),
 337                  "Link '%s' declared several times in the platform file.", name);
 338
 339   Link* link = new LinkL07(this, name, properties,
 340                              bw_initial, bw_trace,
 341                                          lat_initial, lat_trace,
 342                                          state_initial, state_trace,
 343                                          policy);
 344   surf_callback_emit(networkLinkCreatedCallbacks, link);
 345   return link;
 346 }
 347
 348 void HostL07Model::addTraces()
 349 {
 350   xbt_dict_cursor_t cursor = NULL;
 351   char *trace_name, *elm;
 352
 353   if (!trace_connect_list_host_avail)
 354     return;
 355
 356   /* Connect traces relative to cpu */
 357   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 358     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 359     CpuL07 *host = static_cast<CpuL07*>(sg_host_surfcpu(sg_host_by_name(elm)));
 360
 361     xbt_assert(host, "Host %s undefined", elm);
 362     xbt_assert(trace, "Trace %s undefined", trace_name);
 363
 364     host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 365   }
 366
 367   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 368     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 369     CpuL07 *host = static_cast<CpuL07*>(sg_host_surfcpu(sg_host_by_name(elm)));
 370
 371     xbt_assert(host, "Host %s undefined", elm);
 372     xbt_assert(trace, "Trace %s undefined", trace_name);
 373
 374     host->p_speedEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 375   }
 376
 377   /* Connect traces relative to network */
 378   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 379     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 380     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 381
 382     xbt_assert(link, "Link %s undefined", elm);
 383     xbt_assert(trace, "Trace %s undefined", trace_name);
 384
 385     link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 386   }
 387
 388   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
 389     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 390     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 391
 392     xbt_assert(link, "Link %s undefined", elm);
 393     xbt_assert(trace, "Trace %s undefined", trace_name);
 394
 395     link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 396   }
 397
 398   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
 399     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 400     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 401
 402     xbt_assert(link, "Link %s undefined", elm);
 403     xbt_assert(trace, "Trace %s undefined", trace_name);
 404
 405     link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 406   }
 407 }
 408
 409 /************
 410  * Resource *
 411  ************/
 412
 413 HostL07::HostL07(HostModel *model, const char* name, xbt_dict_t props, RoutingEdge *netElm, Cpu *cpu)
 414   : Host(model, name, props, NULL, netElm, cpu)
 415 {
 416 }
 417
 418 CpuL07::CpuL07(CpuL07Model *model, const char* name, xbt_dict_t props,
 419                      double speedInitial, double speedScale, tmgr_trace_t speedTrace,
 420                            int core, e_surf_resource_state_t state_initial, tmgr_trace_t state_trace)
 421  : Cpu(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, speedInitial * speedScale),
 422            core, speedInitial, speedScale, state_initial)
 423 {
 424   xbt_assert(m_speedScale > 0, "Power has to be >0");
 425
 426   if (speedTrace)
 427     p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
 428   else
 429     p_speedEvent = NULL;
 430
 431   if (state_trace)
 432         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 433 }
 434
 435 LinkL07::LinkL07(NetworkL07Model *model, const char* name, xbt_dict_t props,
 436                          double bw_initial,
 437                          tmgr_trace_t bw_trace,
 438                          double lat_initial,
 439                          tmgr_trace_t lat_trace,
 440                          e_surf_resource_state_t state_initial,
 441                          tmgr_trace_t state_trace,
 442                          e_surf_link_sharing_policy_t policy)
 443  : Link(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, bw_initial), history, state_trace)
 444 {
 445   m_bwCurrent = bw_initial;
 446   if (bw_trace)
 447     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 448
 449   setState(state_initial);
 450   m_latCurrent = lat_initial;
 451
 452   if (lat_trace)
 453         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 454
 455   if (policy == SURF_LINK_FATPIPE)
 456         lmm_constraint_shared(getConstraint());
 457 }
 458
 459 Action *CpuL07::execute(double size)
 460 {
 461   sg_host_t*host_list = xbt_new0(sg_host_t, 1);
 462   double *flops_amount = xbt_new0(double, 1);
 463   double *bytes_amount = xbt_new0(double, 1);
 464
 465   host_list[0] = sg_host_by_name(getName());
 466   flops_amount[0] = size;
 467
 468   return static_cast<HostL07Model*>(getModel())->executeParallelTask(1, host_list,
 469                                               flops_amount,
 470                                      bytes_amount, -1);
 471 }
 472
 473 Action *CpuL07::sleep(double duration)
 474 {
 475   L07Action *action = NULL;
 476
 477   XBT_IN("(%s,%g)", getName(), duration);
 478
 479   action = static_cast<L07Action*>(execute(1.0));
 480   action->m_maxDuration = duration;
 481   action->m_suspended = 2;
 482   lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
 483
 484   XBT_OUT();
 485   return action;
 486 }
 487
 488 bool CpuL07::isUsed(){
 489   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 490 }
 491
 492 bool LinkL07::isUsed(){
 493   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 494 }
 495
 496 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
 497   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
 498   if (event_type == p_speedEvent) {
 499           m_speedScale = value;
 500     lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_speedPeak * m_speedScale);
 501     if (tmgr_trace_event_free(event_type))
 502       p_speedEvent = NULL;
 503   } else if (event_type == p_stateEvent) {
 504     if (value > 0)
 505       setState(SURF_RESOURCE_ON);
 506     else
 507       setState(SURF_RESOURCE_OFF);
 508     if (tmgr_trace_event_free(event_type))
 509       p_stateEvent = NULL;
 510   } else {
 511     XBT_CRITICAL("Unknown event ! \n");
 512     xbt_abort();
 513   }
 514   return;
 515 }
 516
 517 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date) {
 518   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
 519   if (event_type == p_bwEvent) {
 520     updateBandwidth(value, date);
 521     if (tmgr_trace_event_free(event_type))
 522       p_bwEvent = NULL;
 523   } else if (event_type == p_latEvent) {
 524     updateLatency(value, date);
 525     if (tmgr_trace_event_free(event_type))
 526       p_latEvent = NULL;
 527   } else if (event_type == p_stateEvent) {
 528     if (value > 0)
 529       setState(SURF_RESOURCE_ON);
 530     else
 531       setState(SURF_RESOURCE_OFF);
 532     if (tmgr_trace_event_free(event_type))
 533       p_stateEvent = NULL;
 534   } else {
 535     XBT_CRITICAL("Unknown event ! \n");
 536     xbt_abort();
 537   }
 538   return;
 539 }
 540
 541 e_surf_resource_state_t HostL07::getState() {
 542   return p_cpu->getState();
 543 }
 544
 545
 546 double LinkL07::getBandwidth()
 547 {
 548   return m_bwCurrent;
 549 }
 550
 551 void LinkL07::updateBandwidth(double value, double date)
 552 {
 553   m_bwCurrent = value;
 554   lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_bwCurrent);
 555 }
 556
 557 void LinkL07::updateLatency(double value, double date)
 558 {
 559   lmm_variable_t var = NULL;
 560   L07Action *action;
 561   lmm_element_t elem = NULL;
 562
 563   m_latCurrent = value;
 564   while ((var = lmm_get_var_from_cnst(ptask_maxmin_system, getConstraint(), &elem))) {
 565     action = static_cast<L07Action*>(lmm_variable_id(var));
 566     action->updateBound();
 567   }
 568 }
 569
 570 /**********
 571  * Action *
 572  **********/
 573
 574 L07Action::~L07Action(){
 575   free(p_communicationAmount);
 576   free(p_computationAmount);
 577 }
 578
 579 void L07Action::updateBound()
 580 {
 581   double lat_current = 0.0;
 582   double lat_bound = -1.0;
 583   int i, j;
 584
 585   int hostNb = p_edgeList->size();
 586
 587   for (i = 0; i < hostNb; i++) {
 588     for (j = 0; j < hostNb; j++) {
 589       xbt_dynar_t route=NULL;
 590
 591       if (p_communicationAmount[i * hostNb + j] > 0) {
 592         double lat = 0.0;
 593         routing_platf->getRouteAndLatency((*p_edgeList)[i], (*p_edgeList)[j],
 594                                                           &route, &lat);
 595
 596         lat_current = MAX(lat_current, lat * p_communicationAmount[i * hostNb + j]);
 597       }
 598     }
 599   }
 600   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 601   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 602   if ((m_latency == 0.0) && (m_suspended == 0)) {
 603     if (m_rate < 0)
 604       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), lat_bound);
 605     else
 606       lmm_update_variable_bound(ptask_maxmin_system, getVariable(),
 607         std::min(m_rate, lat_bound));
 608   }
 609 }
 610
 611 int L07Action::unref()
 612 {
 613   m_refcount--;
 614   if (!m_refcount) {
 615     if (action_hook.is_linked())
 616           p_stateSet->erase(p_stateSet->iterator_to(*this));
 617     if (getVariable())
 618       lmm_variable_free(ptask_maxmin_system, getVariable());
 619     delete this;
 620     return 1;
 621   }
 622   return 0;
 623 }
 624
 625 void L07Action::cancel()
 626 {
 627   setState(SURF_ACTION_FAILED);
 628   return;
 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(ptask_maxmin_system, 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(ptask_maxmin_system, getVariable(), 1.0);
 646     m_suspended = 0;
 647   }
 648   XBT_OUT();
 649 }
 650
 651 bool L07Action::isSuspended()
 652 {
 653   return m_suspended == 1;
 654 }
 655
 656 void L07Action::setMaxDuration(double duration)
 657 {                               /* FIXME: should inherit */
 658   XBT_IN("(%p,%g)", this, duration);
 659   m_maxDuration = duration;
 660   XBT_OUT();
 661 }
 662
 663 void L07Action::setPriority(double priority)
 664 {                               /* FIXME: should inherit */
 665   XBT_IN("(%p,%g)", this, priority);
 666   m_priority = priority;
 667   XBT_OUT();
 668 }
 669
 670 double L07Action::getRemains()
 671 {
 672   XBT_IN("(%p)", this);
 673   XBT_OUT();
 674   return m_remains;
 675 }
 676
 677 }
 678 }