src/surf/host_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 "host_ptask_L07.hpp"
   8
   9 #include "cpu_interface.hpp"
  10 #include "surf_routing.hpp"
  11
  12 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
  13
  14 static int ptask_host_count = 0;
  15 static xbt_dict_t ptask_parallel_task_link_set = NULL;
  16 lmm_system_t ptask_maxmin_system = NULL;
  17
  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 static void ptask_define_callbacks()
  30 {
  31   sg_platf_host_add_cb(cpu_parse_init);
  32   sg_platf_host_add_cb(host_parse_init);
  33   sg_platf_link_add_cb(ptask_netlink_parse_init);
  34   sg_platf_postparse_add_cb(host_add_traces);
  35 }
  36
  37 void surf_host_model_init_ptask_L07(void)
  38 {
  39   XBT_INFO("surf_host_model_init_ptask_L07");
  40   xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
  41   xbt_assert(!surf_network_model, "network model type already defined");
  42   ptask_define_callbacks();
  43   surf_host_model = new HostL07Model();
  44   Model *model = surf_host_model;
  45   xbt_dynar_push(model_list, &model);
  46   xbt_dynar_push(model_list_invoke, &model);
  47 }
  48
  49
  50 HostL07Model::HostL07Model() : HostModel("Host ptask_L07") {
  51   if (!ptask_maxmin_system)
  52         ptask_maxmin_system = lmm_system_new(1);
  53   surf_host_model = NULL;
  54   surf_network_model = new NetworkL07Model();
  55   surf_cpu_model_pm = new CpuL07Model();
  56
  57   routing_model_create(surf_network_model->createLink("__loopback__",
  58                                                           498000000, NULL,
  59                                                           0.000015, NULL,
  60                                                           SURF_RESOURCE_ON, NULL,
  61                                                           SURF_LINK_FATPIPE, NULL));
  62   p_cpuModel = surf_cpu_model_pm;
  63 }
  64
  65 HostL07Model::~HostL07Model() {
  66   xbt_dict_free(&ptask_parallel_task_link_set);
  67
  68   delete surf_cpu_model_pm;
  69   delete surf_network_model;
  70   ptask_host_count = 0;
  71
  72   if (ptask_maxmin_system) {
  73     lmm_system_free(ptask_maxmin_system);
  74     ptask_maxmin_system = NULL;
  75   }
  76 }
  77
  78 double HostL07Model::shareResources(double /*now*/)
  79 {
  80   HostL07Action *action;
  81
  82   ActionList *running_actions = getRunningActionSet();
  83   double min = this->shareResourcesMaxMin(running_actions,
  84                                               ptask_maxmin_system,
  85                                               bottleneck_solve);
  86
  87   for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
  88          ; it != itend ; ++it) {
  89         action = static_cast<HostL07Action*>(&*it);
  90     if (action->m_latency > 0) {
  91       if (min < 0) {
  92         min = action->m_latency;
  93         XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
  94                action->getStartTime(), min);
  95       } else if (action->m_latency < min) {
  96         min = action->m_latency;
  97         XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
  98                action->getStartTime(), min);
  99       }
 100     }
 101   }
 102
 103   XBT_DEBUG("min value : %f", min);
 104
 105   return min;
 106 }
 107
 108 void HostL07Model::updateActionsState(double /*now*/, double delta)
 109 {
 110   double deltap = 0.0;
 111   HostL07Action *action;
 112
 113   ActionList *actionSet = getRunningActionSet();
 114
 115   for(ActionList::iterator it(actionSet->begin()), itNext = it, itend(actionSet->end())
 116          ; it != itend ; it=itNext) {
 117         ++itNext;
 118     action = static_cast<HostL07Action*>(&*it);
 119     deltap = delta;
 120     if (action->m_latency > 0) {
 121       if (action->m_latency > deltap) {
 122         double_update(&(action->m_latency), deltap, sg_surf_precision);
 123         deltap = 0.0;
 124       } else {
 125         double_update(&(deltap), action->m_latency, sg_surf_precision);
 126         action->m_latency = 0.0;
 127       }
 128       if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
 129         action->updateBound();
 130         lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 1.0);
 131       }
 132     }
 133     XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
 134            action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
 135     action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
 136
 137     if (action->getMaxDuration() != NO_MAX_DURATION)
 138       action->updateMaxDuration(delta);
 139
 140     XBT_DEBUG("Action (%p) : remains (%g).",
 141            action, action->getRemains());
 142     if ((action->getRemains() <= 0) &&
 143         (lmm_get_variable_weight(action->getVariable()) > 0)) {
 144       action->finish();
 145       action->setState(SURF_ACTION_DONE);
 146     } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
 147                (action->getMaxDuration() <= 0)) {
 148       action->finish();
 149      action->setState(SURF_ACTION_DONE);
 150     } else {
 151       /* Need to check that none of the model has failed */
 152       lmm_constraint_t cnst = NULL;
 153       int i = 0;
 154       void *constraint_id = NULL;
 155
 156       while ((cnst = lmm_get_cnst_from_var(ptask_maxmin_system, action->getVariable(),
 157                                     i++))) {
 158         constraint_id = lmm_constraint_id(cnst);
 159
 160         if (static_cast<Host*>(constraint_id)->getState() == SURF_RESOURCE_OFF) {
 161           XBT_DEBUG("Action (%p) Failed!!", action);
 162           action->finish();
 163           action->setState(SURF_ACTION_FAILED);
 164           break;
 165         }
 166       }
 167     }
 168   }
 169   return;
 170 }
 171
 172 Action *HostL07Model::executeParallelTask(int host_nb,
 173                                                    void **host_list,
 174                                                    double *flops_amount,
 175                                                                                                    double *bytes_amount,
 176                                                    double rate)
 177 {
 178   HostL07Action *action;
 179   int i, j;
 180   unsigned int cpt;
 181   int nb_link = 0;
 182   int nb_host = 0;
 183   double latency = 0.0;
 184
 185   if (ptask_parallel_task_link_set == NULL)
 186     ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
 187
 188   xbt_dict_reset(ptask_parallel_task_link_set);
 189
 190   /* Compute the number of affected resources... */
 191   for (i = 0; i < host_nb; i++) {
 192     for (j = 0; j < host_nb; j++) {
 193       xbt_dynar_t route=NULL;
 194
 195       if (bytes_amount[i * host_nb + j] > 0) {
 196         double lat=0.0;
 197         unsigned int cpt;
 198         void *_link;
 199         LinkL07 *link;
 200
 201         routing_platf->getRouteAndLatency(static_cast<HostL07*>(host_list[i])->p_netElm,
 202                                                   static_cast<HostL07*>(host_list[j])->p_netElm,
 203                                                   &route,
 204                                                   &lat);
 205         latency = MAX(latency, lat);
 206
 207         xbt_dynar_foreach(route, cpt, _link) {
 208            link = static_cast<LinkL07*>(_link);
 209            xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
 210         }
 211       }
 212     }
 213   }
 214
 215   nb_link = xbt_dict_length(ptask_parallel_task_link_set);
 216   xbt_dict_reset(ptask_parallel_task_link_set);
 217
 218   for (i = 0; i < host_nb; i++)
 219     if (flops_amount[i] > 0)
 220       nb_host++;
 221
 222   action = new HostL07Action(this, 1, 0);
 223   XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
 224          action, host_nb, nb_link);
 225   action->m_suspended = 0;        /* Should be useless because of the
 226                                    calloc but it seems to help valgrind... */
 227   action->m_hostNb = host_nb;
 228   action->p_hostList = (Host **) host_list;
 229   action->p_computationAmount = flops_amount;
 230   action->p_communicationAmount = bytes_amount;
 231   action->m_latency = latency;
 232   action->m_rate = rate;
 233
 234   action->p_variable = lmm_variable_new(ptask_maxmin_system, action, 1.0,
 235                        (action->m_rate > 0) ? action->m_rate : -1.0,
 236                        host_nb + nb_link);
 237
 238   if (action->m_latency > 0)
 239     lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
 240
 241   for (i = 0; i < host_nb; i++)
 242     lmm_expand(ptask_maxmin_system,
 243                  static_cast<HostL07*>(host_list[i])->p_cpu->getConstraint(),
 244                action->getVariable(), flops_amount[i]);
 245
 246   for (i = 0; i < host_nb; i++) {
 247     for (j = 0; j < host_nb; j++) {
 248       void *_link;
 249       LinkL07 *link;
 250
 251       xbt_dynar_t route=NULL;
 252       if (bytes_amount[i * host_nb + j] == 0.0)
 253         continue;
 254
 255       routing_platf->getRouteAndLatency(static_cast<HostL07*>(host_list[i])->p_netElm,
 256                                         static_cast<HostL07*>(host_list[j])->p_netElm,
 257                                             &route, NULL);
 258
 259       xbt_dynar_foreach(route, cpt, _link) {
 260         link = static_cast<LinkL07*>(_link);
 261         lmm_expand_add(ptask_maxmin_system, link->getConstraint(),
 262                        action->getVariable(),
 263                        bytes_amount[i * host_nb + j]);
 264       }
 265     }
 266   }
 267
 268   if (nb_link + nb_host == 0) {
 269     action->setCost(1.0);
 270     action->setRemains(0.0);
 271   }
 272
 273   return action;
 274 }
 275
 276 Host *HostL07Model::createHost(const char *name)
 277 {
 278   HostL07 *wk = NULL;
 279   sg_host_t sg_host = sg_host_by_name(name);
 280
 281   xbt_assert(!surf_host_resource_priv(sg_host),
 282               "Host '%s' declared several times in the platform file.",
 283               name);
 284
 285   wk = new HostL07(this, name, NULL,
 286                                   sg_host_edge(sg_host),
 287                                                   sg_host_surfcpu(sg_host));
 288
 289   xbt_lib_set(host_lib, name, SURF_HOST_LEVEL, wk);
 290
 291   return wk;
 292 }
 293
 294 Action *HostL07Model::communicate(Host *src, Host *dst,
 295                                        double size, double rate)
 296 {
 297   void **host_list = xbt_new0(void *, 2);
 298   double *flops_amount = xbt_new0(double, 2);
 299   double *bytes_amount = xbt_new0(double, 4);
 300   Action *res = NULL;
 301
 302   host_list[0] = src;
 303   host_list[1] = dst;
 304   bytes_amount[1] = size;
 305
 306   res = executeParallelTask(2, host_list,
 307                                     flops_amount,
 308                                     bytes_amount, rate);
 309
 310   return res;
 311 }
 312
 313 xbt_dynar_t HostL07Model::getRoute(Host *src, Host *dst)
 314 {
 315   xbt_dynar_t route=NULL;
 316   routing_platf->getRouteAndLatency(src->p_netElm, dst->p_netElm, &route, NULL);
 317   return route;
 318 }
 319
 320 Cpu *CpuL07Model::createCpu(const char *name,  xbt_dynar_t powerPeak,
 321                           int pstate, double power_scale,
 322                           tmgr_trace_t power_trace, int core,
 323                           e_surf_resource_state_t state_initial,
 324                           tmgr_trace_t state_trace,
 325                           xbt_dict_t cpu_properties)
 326 {
 327   double power_initial = xbt_dynar_get_as(powerPeak, pstate, double);
 328   xbt_dynar_free(&powerPeak);   // kill memory leak
 329   sg_host_t sg_host = sg_host_by_name(name);
 330
 331   xbt_assert(!surf_host_resource_priv(sg_host),
 332               "Host '%s' declared several times in the platform file.",
 333               name);
 334
 335   CpuL07 *cpu = new CpuL07(this, name, cpu_properties,
 336                                      power_initial, power_scale, power_trace,
 337                          core, state_initial, state_trace);
 338
 339   sg_host_surfcpu_set(sg_host, cpu);
 340
 341   return cpu;
 342 }
 343
 344 Link* NetworkL07Model::createLink(const char *name,
 345                                  double bw_initial,
 346                                  tmgr_trace_t bw_trace,
 347                                  double lat_initial,
 348                                  tmgr_trace_t lat_trace,
 349                                  e_surf_resource_state_t state_initial,
 350                                  tmgr_trace_t state_trace,
 351                                  e_surf_link_sharing_policy_t policy,
 352                                  xbt_dict_t properties)
 353 {
 354   xbt_assert(!Link::byName(name),
 355                  "Link '%s' declared several times in the platform file.", name);
 356
 357   return new LinkL07(this, name, properties,
 358                              bw_initial, bw_trace,
 359                                          lat_initial, lat_trace,
 360                                          state_initial, state_trace,
 361                                          policy);
 362 }
 363
 364 void HostL07Model::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     CpuL07 *host = static_cast<CpuL07*>(sg_host_surfcpu(sg_host_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     CpuL07 *host = static_cast<CpuL07*>(sg_host_surfcpu(sg_host_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     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 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     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 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     LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
 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 HostL07::HostL07(HostModel *model, const char* name, xbt_dict_t props, RoutingEdge *netElm, Cpu *cpu)
 430   : Host(model, name, props, NULL, netElm, cpu)
 431 {
 432 }
 433
 434 double HostL07::getPowerPeakAt(int /*pstate_index*/)
 435 {
 436         THROW_UNIMPLEMENTED;
 437 }
 438
 439 int HostL07::getNbPstates()
 440 {
 441         THROW_UNIMPLEMENTED;
 442 }
 443
 444 void HostL07::setPstate(int /*pstate_index*/)
 445 {
 446         THROW_UNIMPLEMENTED;
 447 }
 448
 449 int HostL07::getPstate()
 450 {
 451         THROW_UNIMPLEMENTED;
 452 }
 453
 454 double HostL07::getConsumedEnergy()
 455 {
 456         THROW_UNIMPLEMENTED;
 457 }
 458
 459 CpuL07::CpuL07(CpuL07Model *model, const char* name, xbt_dict_t props,
 460                      double power_initial, double power_scale, tmgr_trace_t power_trace,
 461                            int core, e_surf_resource_state_t state_initial, tmgr_trace_t state_trace)
 462  : Cpu(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, power_initial * power_scale),
 463            core, power_initial, power_scale)
 464 {
 465   xbt_assert(m_powerScale > 0, "Power has to be >0");
 466
 467   if (power_trace)
 468     p_powerEvent = tmgr_history_add_trace(history, power_trace, 0.0, 0, this);
 469   else
 470     p_powerEvent = NULL;
 471
 472   setState(state_initial);
 473   if (state_trace)
 474         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 475 }
 476
 477 LinkL07::LinkL07(NetworkL07Model *model, const char* name, xbt_dict_t props,
 478                          double bw_initial,
 479                          tmgr_trace_t bw_trace,
 480                          double lat_initial,
 481                          tmgr_trace_t lat_trace,
 482                          e_surf_resource_state_t state_initial,
 483                          tmgr_trace_t state_trace,
 484                          e_surf_link_sharing_policy_t policy)
 485  : Link(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, bw_initial), history, state_trace)
 486 {
 487   m_bwCurrent = bw_initial;
 488   if (bw_trace)
 489     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 490
 491   setState(state_initial);
 492   m_latCurrent = lat_initial;
 493
 494   if (lat_trace)
 495         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 496
 497   if (policy == SURF_LINK_FATPIPE)
 498         lmm_constraint_shared(getConstraint());
 499 }
 500
 501 bool CpuL07::isUsed(){
 502   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 503 }
 504
 505 bool LinkL07::isUsed(){
 506   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 507 }
 508
 509 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
 510   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
 511   if (event_type == p_powerEvent) {
 512           m_powerScale = value;
 513     lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_powerPeak * m_powerScale);
 514     if (tmgr_trace_event_free(event_type))
 515       p_powerEvent = NULL;
 516   } else if (event_type == p_stateEvent) {
 517     if (value > 0)
 518       setState(SURF_RESOURCE_ON);
 519     else
 520       setState(SURF_RESOURCE_OFF);
 521     if (tmgr_trace_event_free(event_type))
 522       p_stateEvent = NULL;
 523   } else {
 524     XBT_CRITICAL("Unknown event ! \n");
 525     xbt_abort();
 526   }
 527   return;
 528 }
 529
 530 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date) {
 531   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
 532   if (event_type == p_bwEvent) {
 533     updateBandwidth(value, date);
 534     if (tmgr_trace_event_free(event_type))
 535       p_bwEvent = NULL;
 536   } else if (event_type == p_latEvent) {
 537     updateLatency(value, date);
 538     if (tmgr_trace_event_free(event_type))
 539       p_latEvent = NULL;
 540   } else if (event_type == p_stateEvent) {
 541     if (value > 0)
 542       setState(SURF_RESOURCE_ON);
 543     else
 544       setState(SURF_RESOURCE_OFF);
 545     if (tmgr_trace_event_free(event_type))
 546       p_stateEvent = NULL;
 547   } else {
 548     XBT_CRITICAL("Unknown event ! \n");
 549     xbt_abort();
 550   }
 551   return;
 552 }
 553
 554 e_surf_resource_state_t HostL07::getState() {
 555   return p_cpu->getState();
 556 }
 557
 558 Action *HostL07::execute(double size)
 559 {
 560   void **host_list = xbt_new0(void *, 1);
 561   double *flops_amount = xbt_new0(double, 1);
 562   double *bytes_amount = xbt_new0(double, 1);
 563
 564   host_list[0] = this;
 565   bytes_amount[0] = 0.0;
 566   flops_amount[0] = size;
 567
 568   return static_cast<HostL07Model*>(getModel())->executeParallelTask(1, host_list,
 569                                               flops_amount,
 570                                      bytes_amount, -1);
 571 }
 572
 573 Action *HostL07::sleep(double duration)
 574 {
 575   HostL07Action *action = NULL;
 576
 577   XBT_IN("(%s,%g)", getName(), duration);
 578
 579   action = static_cast<HostL07Action*>(execute(1.0));
 580   action->m_maxDuration = duration;
 581   action->m_suspended = 2;
 582   lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
 583
 584   XBT_OUT();
 585   return action;
 586 }
 587
 588 double LinkL07::getBandwidth()
 589 {
 590   return m_bwCurrent;
 591 }
 592
 593 void LinkL07::updateBandwidth(double value, double date)
 594 {
 595   m_bwCurrent = value;
 596   lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_bwCurrent);
 597 }
 598
 599 double LinkL07::getLatency()
 600 {
 601   return m_latCurrent;
 602 }
 603
 604 void LinkL07::updateLatency(double value, double date)
 605 {
 606   lmm_variable_t var = NULL;
 607   HostL07Action *action;
 608   lmm_element_t elem = NULL;
 609
 610   m_latCurrent = value;
 611   while ((var = lmm_get_var_from_cnst(ptask_maxmin_system, getConstraint(), &elem))) {
 612     action = static_cast<HostL07Action*>(lmm_variable_id(var));
 613     action->updateBound();
 614   }
 615 }
 616
 617
 618 bool LinkL07::isShared()
 619 {
 620   return lmm_constraint_is_shared(getConstraint());
 621 }
 622
 623 /**********
 624  * Action *
 625  **********/
 626
 627 HostL07Action::~HostL07Action(){
 628   free(p_hostList);
 629   free(p_communicationAmount);
 630   free(p_computationAmount);
 631 }
 632
 633 void HostL07Action::updateBound()
 634 {
 635   double lat_current = 0.0;
 636   double lat_bound = -1.0;
 637   int i, j;
 638
 639   for (i = 0; i < m_hostNb; i++) {
 640     for (j = 0; j < m_hostNb; j++) {
 641       xbt_dynar_t route=NULL;
 642
 643       if (p_communicationAmount[i * m_hostNb + j] > 0) {
 644         double lat = 0.0;
 645         routing_platf->getRouteAndLatency(static_cast<HostL07*>(((void**)p_hostList)[i])->p_netElm,
 646                                           static_cast<HostL07*>(((void**)p_hostList)[j])->p_netElm,
 647                                                           &route, &lat);
 648
 649         lat_current = MAX(lat_current, lat * p_communicationAmount[i * m_hostNb + j]);
 650       }
 651     }
 652   }
 653   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 654   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 655   if ((m_latency == 0.0) && (m_suspended == 0)) {
 656     if (m_rate < 0)
 657       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), lat_bound);
 658     else
 659       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), min(m_rate, lat_bound));
 660   }
 661 }
 662
 663 int HostL07Action::unref()
 664 {
 665   m_refcount--;
 666   if (!m_refcount) {
 667     if (actionHook::is_linked())
 668           p_stateSet->erase(p_stateSet->iterator_to(*this));
 669     if (getVariable())
 670       lmm_variable_free(ptask_maxmin_system, getVariable());
 671     delete this;
 672     return 1;
 673   }
 674   return 0;
 675 }
 676
 677 void HostL07Action::cancel()
 678 {
 679   setState(SURF_ACTION_FAILED);
 680   return;
 681 }
 682
 683 void HostL07Action::suspend()
 684 {
 685   XBT_IN("(%p))", this);
 686   if (m_suspended != 2) {
 687     m_suspended = 1;
 688     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 0.0);
 689   }
 690   XBT_OUT();
 691 }
 692
 693 void HostL07Action::resume()
 694 {
 695   XBT_IN("(%p)", this);
 696   if (m_suspended != 2) {
 697     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 1.0);
 698     m_suspended = 0;
 699   }
 700   XBT_OUT();
 701 }
 702
 703 bool HostL07Action::isSuspended()
 704 {
 705   return m_suspended == 1;
 706 }
 707
 708 void HostL07Action::setMaxDuration(double duration)
 709 {                               /* FIXME: should inherit */
 710   XBT_IN("(%p,%g)", this, duration);
 711   m_maxDuration = duration;
 712   XBT_OUT();
 713 }
 714
 715 void HostL07Action::setPriority(double priority)
 716 {                               /* FIXME: should inherit */
 717   XBT_IN("(%p,%g)", this, priority);
 718   m_priority = priority;
 719   XBT_OUT();
 720 }
 721
 722 double HostL07Action::getRemains()
 723 {
 724   XBT_IN("(%p)", this);
 725   XBT_OUT();
 726   return m_remains;
 727 }