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   ModelPtr 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   routing_model_create(surf_network_model->createNetworkLink("__loopback__",
  57                                                           498000000, NULL,
  58                                                           0.000015, NULL,
  59                                                           SURF_RESOURCE_ON, NULL,
  60                                                           SURF_LINK_FATPIPE, NULL));
  61   p_cpuModel = surf_cpu_model_pm;
  62 }
  63
  64 HostL07Model::~HostL07Model() {
  65   xbt_dict_free(&ptask_parallel_task_link_set);
  66
  67   delete surf_cpu_model_pm;
  68   delete surf_network_model;
  69   ptask_host_count = 0;
  70
  71   if (ptask_maxmin_system) {
  72     lmm_system_free(ptask_maxmin_system);
  73     ptask_maxmin_system = NULL;
  74   }
  75 }
  76
  77 double HostL07Model::shareResources(double /*now*/)
  78 {
  79   HostL07ActionPtr action;
  80
  81   ActionListPtr running_actions = getRunningActionSet();
  82   double min = this->shareResourcesMaxMin(running_actions,
  83                                               ptask_maxmin_system,
  84                                               bottleneck_solve);
  85
  86   for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
  87          ; it != itend ; ++it) {
  88         action = static_cast<HostL07ActionPtr>(&*it);
  89     if (action->m_latency > 0) {
  90       if (min < 0) {
  91         min = action->m_latency;
  92         XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
  93                action->getStartTime(), min);
  94       } else if (action->m_latency < min) {
  95         min = action->m_latency;
  96         XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
  97                action->getStartTime(), min);
  98       }
  99     }
 100   }
 101
 102   XBT_DEBUG("min value : %f", min);
 103
 104   return min;
 105 }
 106
 107 void HostL07Model::updateActionsState(double /*now*/, double delta)
 108 {
 109   double deltap = 0.0;
 110   HostL07ActionPtr action;
 111
 112   ActionListPtr actionSet = getRunningActionSet();
 113
 114   for(ActionList::iterator it(actionSet->begin()), itNext = it, itend(actionSet->end())
 115          ; it != itend ; it=itNext) {
 116         ++itNext;
 117     action = static_cast<HostL07ActionPtr>(&*it);
 118     deltap = delta;
 119     if (action->m_latency > 0) {
 120       if (action->m_latency > deltap) {
 121         double_update(&(action->m_latency), deltap, sg_surf_precision);
 122         deltap = 0.0;
 123       } else {
 124         double_update(&(deltap), action->m_latency, sg_surf_precision);
 125         action->m_latency = 0.0;
 126       }
 127       if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
 128         action->updateBound();
 129         lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 1.0);
 130       }
 131     }
 132     XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
 133            action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
 134     action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
 135
 136     if (action->getMaxDuration() != NO_MAX_DURATION)
 137       action->updateMaxDuration(delta);
 138
 139     XBT_DEBUG("Action (%p) : remains (%g).",
 140            action, action->getRemains());
 141     if ((action->getRemains() <= 0) &&
 142         (lmm_get_variable_weight(action->getVariable()) > 0)) {
 143       action->finish();
 144       action->setState(SURF_ACTION_DONE);
 145     } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
 146                (action->getMaxDuration() <= 0)) {
 147       action->finish();
 148      action->setState(SURF_ACTION_DONE);
 149     } else {
 150       /* Need to check that none of the model has failed */
 151       lmm_constraint_t cnst = NULL;
 152       int i = 0;
 153       void *constraint_id = NULL;
 154
 155       while ((cnst = lmm_get_cnst_from_var(ptask_maxmin_system, action->getVariable(),
 156                                     i++))) {
 157         constraint_id = lmm_constraint_id(cnst);
 158
 159         if (static_cast<HostPtr>(constraint_id)->getState() == SURF_RESOURCE_OFF) {
 160           XBT_DEBUG("Action (%p) Failed!!", action);
 161           action->finish();
 162           action->setState(SURF_ACTION_FAILED);
 163           break;
 164         }
 165       }
 166     }
 167   }
 168   return;
 169 }
 170
 171 ActionPtr HostL07Model::executeParallelTask(int host_nb,
 172                                                    void **host_list,
 173                                                    double *flops_amount,
 174                                                                                                    double *bytes_amount,
 175                                                    double rate)
 176 {
 177   HostL07ActionPtr action;
 178   int i, j;
 179   unsigned int cpt;
 180   int nb_link = 0;
 181   int nb_host = 0;
 182   double latency = 0.0;
 183
 184   if (ptask_parallel_task_link_set == NULL)
 185     ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
 186
 187   xbt_dict_reset(ptask_parallel_task_link_set);
 188
 189   /* Compute the number of affected resources... */
 190   for (i = 0; i < host_nb; i++) {
 191     for (j = 0; j < host_nb; j++) {
 192       xbt_dynar_t route=NULL;
 193
 194       if (bytes_amount[i * host_nb + j] > 0) {
 195         double lat=0.0;
 196         unsigned int cpt;
 197         void *_link;
 198         LinkL07Ptr link;
 199
 200         routing_platf->getRouteAndLatency(static_cast<HostL07Ptr>(host_list[i])->p_netElm,
 201                                                   static_cast<HostL07Ptr>(host_list[j])->p_netElm,
 202                                                   &route,
 203                                                   &lat);
 204         latency = MAX(latency, lat);
 205
 206         xbt_dynar_foreach(route, cpt, _link) {
 207            link = static_cast<LinkL07Ptr>(_link);
 208            xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
 209         }
 210       }
 211     }
 212   }
 213
 214   nb_link = xbt_dict_length(ptask_parallel_task_link_set);
 215   xbt_dict_reset(ptask_parallel_task_link_set);
 216
 217   for (i = 0; i < host_nb; i++)
 218     if (flops_amount[i] > 0)
 219       nb_host++;
 220
 221   action = new HostL07Action(this, 1, 0);
 222   XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
 223          action, host_nb, nb_link);
 224   action->m_suspended = 0;        /* Should be useless because of the
 225                                    calloc but it seems to help valgrind... */
 226   action->m_hostNb = host_nb;
 227   action->p_hostList = (HostPtr *) host_list;
 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                        (action->m_rate > 0) ? action->m_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 (i = 0; i < host_nb; i++)
 241     lmm_expand(ptask_maxmin_system,
 242                  static_cast<HostL07Ptr>(host_list[i])->p_cpu->getConstraint(),
 243                action->getVariable(), flops_amount[i]);
 244
 245   for (i = 0; i < host_nb; i++) {
 246     for (j = 0; j < host_nb; j++) {
 247       void *_link;
 248       LinkL07Ptr link;
 249
 250       xbt_dynar_t route=NULL;
 251       if (bytes_amount[i * host_nb + j] == 0.0)
 252         continue;
 253
 254       routing_platf->getRouteAndLatency(static_cast<HostL07Ptr>(host_list[i])->p_netElm,
 255                                         static_cast<HostL07Ptr>(host_list[j])->p_netElm,
 256                                             &route, NULL);
 257
 258       xbt_dynar_foreach(route, cpt, _link) {
 259         link = static_cast<LinkL07Ptr>(_link);
 260         lmm_expand_add(ptask_maxmin_system, link->getConstraint(),
 261                        action->getVariable(),
 262                        bytes_amount[i * host_nb + j]);
 263       }
 264     }
 265   }
 266
 267   if (nb_link + nb_host == 0) {
 268     action->setCost(1.0);
 269     action->setRemains(0.0);
 270   }
 271
 272   return action;
 273 }
 274
 275 HostPtr HostL07Model::createHost(const char *name)
 276 {
 277   HostL07Ptr wk = NULL;
 278   xbt_assert(!surf_host_resource_priv(surf_host_resource_by_name(name)),
 279               "Host '%s' declared several times in the platform file.",
 280               name);
 281
 282   wk = new HostL07(this, name, NULL,
 283                                   static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL)),
 284                                   static_cast<CpuPtr>(xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL)));
 285
 286   xbt_lib_set(host_lib, name, SURF_HOST_LEVEL, wk);
 287
 288   return wk;//FIXME:xbt_lib_get_elm_or_null(host_lib, name);
 289 }
 290
 291 ActionPtr HostL07Model::communicate(HostPtr src, HostPtr dst,
 292                                        double size, double rate)
 293 {
 294   void **host_list = xbt_new0(void *, 2);
 295   double *flops_amount = xbt_new0(double, 2);
 296   double *bytes_amount = xbt_new0(double, 4);
 297   ActionPtr res = NULL;
 298
 299   host_list[0] = src;
 300   host_list[1] = dst;
 301   bytes_amount[1] = size;
 302
 303   res = executeParallelTask(2, host_list,
 304                                     flops_amount,
 305                                     bytes_amount, rate);
 306
 307   return res;
 308 }
 309
 310 xbt_dynar_t HostL07Model::getRoute(HostPtr src, HostPtr dst)
 311 {
 312   xbt_dynar_t route=NULL;
 313   routing_platf->getRouteAndLatency(src->p_netElm, dst->p_netElm, &route, NULL);
 314   return route;
 315 }
 316
 317 CpuPtr CpuL07Model::createCpu(const char *name,  xbt_dynar_t powerPeak,
 318                           int pstate, double power_scale,
 319                           tmgr_trace_t power_trace, int core,
 320                           e_surf_resource_state_t state_initial,
 321                           tmgr_trace_t state_trace,
 322                           xbt_dict_t cpu_properties)
 323 {
 324   double power_initial = xbt_dynar_get_as(powerPeak, pstate, double);
 325   xbt_dynar_free(&powerPeak);   // kill memory leak
 326
 327   xbt_assert(!surf_host_resource_priv(surf_host_resource_by_name(name)),
 328               "Host '%s' declared several times in the platform file.",
 329               name);
 330
 331   CpuL07Ptr cpu = new CpuL07(this, name, cpu_properties,
 332                                      power_initial, power_scale, power_trace,
 333                          core, state_initial, state_trace);
 334
 335   xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, cpu);
 336
 337   return cpu;
 338 }
 339
 340 NetworkLinkPtr NetworkL07Model::createNetworkLink(const char *name,
 341                                  double bw_initial,
 342                                  tmgr_trace_t bw_trace,
 343                                  double lat_initial,
 344                                  tmgr_trace_t lat_trace,
 345                                  e_surf_resource_state_t
 346                                  state_initial,
 347                                  tmgr_trace_t state_trace,
 348                                  e_surf_link_sharing_policy_t policy,
 349                                  xbt_dict_t properties)
 350 {
 351   xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
 352                       "Link '%s' declared several times in the platform file.",
 353                       name);
 354
 355   LinkL07Ptr nw_link = new LinkL07(this, name, properties,
 356                                        bw_initial, bw_trace,
 357                                        lat_initial, lat_trace,
 358                                        state_initial, state_trace,
 359                                        policy);
 360
 361   xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
 362   return nw_link;
 363 }
 364
 365 void HostL07Model::addTraces()
 366 {
 367   xbt_dict_cursor_t cursor = NULL;
 368   char *trace_name, *elm;
 369
 370   if (!trace_connect_list_host_avail)
 371     return;
 372
 373   /* Connect traces relative to cpu */
 374   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 375     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 376     CpuL07Ptr host = static_cast<CpuL07Ptr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
 377
 378     xbt_assert(host, "Host %s undefined", elm);
 379     xbt_assert(trace, "Trace %s undefined", trace_name);
 380
 381     host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 382   }
 383
 384   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 385     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 386     CpuL07Ptr host = static_cast<CpuL07Ptr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
 387
 388     xbt_assert(host, "Host %s undefined", elm);
 389     xbt_assert(trace, "Trace %s undefined", trace_name);
 390
 391     host->p_powerEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 392   }
 393
 394   /* Connect traces relative to network */
 395   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 396     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 397     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
 398
 399     xbt_assert(link, "Link %s undefined", elm);
 400     xbt_assert(trace, "Trace %s undefined", trace_name);
 401
 402     link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 403   }
 404
 405   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
 406     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 407     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
 408
 409     xbt_assert(link, "Link %s undefined", elm);
 410     xbt_assert(trace, "Trace %s undefined", trace_name);
 411
 412     link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 413   }
 414
 415   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
 416     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 417     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
 418
 419     xbt_assert(link, "Link %s undefined", elm);
 420     xbt_assert(trace, "Trace %s undefined", trace_name);
 421
 422     link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 423   }
 424 }
 425
 426 /************
 427  * Resource *
 428  ************/
 429
 430 HostL07::HostL07(HostModelPtr model, const char* name, xbt_dict_t props, RoutingEdgePtr netElm, CpuPtr cpu)
 431   : Host(model, name, props, NULL, netElm, cpu)
 432 {
 433 }
 434
 435 double HostL07::getPowerPeakAt(int /*pstate_index*/)
 436 {
 437         THROW_UNIMPLEMENTED;
 438 }
 439
 440 int HostL07::getNbPstates()
 441 {
 442         THROW_UNIMPLEMENTED;
 443 }
 444
 445 void HostL07::setPstate(int /*pstate_index*/)
 446 {
 447         THROW_UNIMPLEMENTED;
 448 }
 449
 450 int HostL07::getPstate()
 451 {
 452         THROW_UNIMPLEMENTED;
 453 }
 454
 455 double HostL07::getConsumedEnergy()
 456 {
 457         THROW_UNIMPLEMENTED;
 458 }
 459
 460 CpuL07::CpuL07(CpuL07ModelPtr model, const char* name, xbt_dict_t props,
 461                      double power_initial, double power_scale, tmgr_trace_t power_trace,
 462                            int core, e_surf_resource_state_t state_initial, tmgr_trace_t state_trace)
 463  : Cpu(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, power_initial * power_scale),
 464            core, power_initial, power_scale)
 465 {
 466   xbt_assert(m_powerScale > 0, "Power has to be >0");
 467
 468   if (power_trace)
 469     p_powerEvent = tmgr_history_add_trace(history, power_trace, 0.0, 0, this);
 470   else
 471     p_powerEvent = NULL;
 472
 473   setState(state_initial);
 474   if (state_trace)
 475         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 476 }
 477
 478 LinkL07::LinkL07(NetworkL07ModelPtr model, const char* name, xbt_dict_t props,
 479                          double bw_initial,
 480                          tmgr_trace_t bw_trace,
 481                          double lat_initial,
 482                          tmgr_trace_t lat_trace,
 483                          e_surf_resource_state_t state_initial,
 484                          tmgr_trace_t state_trace,
 485                          e_surf_link_sharing_policy_t policy)
 486  : NetworkLink(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, bw_initial), history, state_trace)
 487 {
 488   m_bwCurrent = bw_initial;
 489   if (bw_trace)
 490     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 491
 492   setState(state_initial);
 493   m_latCurrent = lat_initial;
 494
 495   if (lat_trace)
 496         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 497
 498   if (policy == SURF_LINK_FATPIPE)
 499         lmm_constraint_shared(getConstraint());
 500 }
 501
 502 bool CpuL07::isUsed(){
 503   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 504 }
 505
 506 bool LinkL07::isUsed(){
 507   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 508 }
 509
 510 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
 511   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
 512   if (event_type == p_powerEvent) {
 513           m_powerScale = value;
 514     lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_powerPeak * m_powerScale);
 515     if (tmgr_trace_event_free(event_type))
 516       p_powerEvent = NULL;
 517   } else if (event_type == p_stateEvent) {
 518     if (value > 0)
 519       setState(SURF_RESOURCE_ON);
 520     else
 521       setState(SURF_RESOURCE_OFF);
 522     if (tmgr_trace_event_free(event_type))
 523       p_stateEvent = NULL;
 524   } else {
 525     XBT_CRITICAL("Unknown event ! \n");
 526     xbt_abort();
 527   }
 528   return;
 529 }
 530
 531 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date){
 532   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
 533   if (event_type == p_bwEvent) {
 534     updateBandwidth(value, date);
 535     if (tmgr_trace_event_free(event_type))
 536       p_bwEvent = NULL;
 537   } else if (event_type == p_latEvent) {
 538     updateLatency(value, date);
 539     if (tmgr_trace_event_free(event_type))
 540       p_latEvent = NULL;
 541   } else if (event_type == p_stateEvent) {
 542     if (value > 0)
 543       setState(SURF_RESOURCE_ON);
 544     else
 545       setState(SURF_RESOURCE_OFF);
 546     if (tmgr_trace_event_free(event_type))
 547       p_stateEvent = NULL;
 548   } else {
 549     XBT_CRITICAL("Unknown event ! \n");
 550     xbt_abort();
 551   }
 552   return;
 553 }
 554
 555 e_surf_resource_state_t HostL07::getState()
 556 {
 557   return p_cpu->getState();
 558 }
 559
 560 ActionPtr HostL07::execute(double size)
 561 {
 562   void **host_list = xbt_new0(void *, 1);
 563   double *flops_amount = xbt_new0(double, 1);
 564   double *bytes_amount = xbt_new0(double, 1);
 565
 566   host_list[0] = this;
 567   bytes_amount[0] = 0.0;
 568   flops_amount[0] = size;
 569
 570   return static_cast<HostL07ModelPtr>(getModel())->executeParallelTask(1, host_list,
 571                                               flops_amount,
 572                                      bytes_amount, -1);
 573 }
 574
 575 ActionPtr HostL07::sleep(double duration)
 576 {
 577   HostL07ActionPtr action = NULL;
 578
 579   XBT_IN("(%s,%g)", getName(), duration);
 580
 581   action = static_cast<HostL07ActionPtr>(execute(1.0));
 582   action->m_maxDuration = duration;
 583   action->m_suspended = 2;
 584   lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
 585
 586   XBT_OUT();
 587   return action;
 588 }
 589
 590 double LinkL07::getBandwidth()
 591 {
 592   return m_bwCurrent;
 593 }
 594
 595 void LinkL07::updateBandwidth(double value, double date)
 596 {
 597   m_bwCurrent = value;
 598   lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_bwCurrent);
 599 }
 600
 601 double LinkL07::getLatency()
 602 {
 603   return m_latCurrent;
 604 }
 605
 606 void LinkL07::updateLatency(double value, double date)
 607 {
 608   lmm_variable_t var = NULL;
 609   HostL07ActionPtr action;
 610   lmm_element_t elem = NULL;
 611
 612   m_latCurrent = value;
 613   while ((var = lmm_get_var_from_cnst(ptask_maxmin_system, getConstraint(), &elem))) {
 614     action = (HostL07ActionPtr) lmm_variable_id(var);
 615     action->updateBound();
 616   }
 617 }
 618
 619
 620 bool LinkL07::isShared()
 621 {
 622   return lmm_constraint_is_shared(getConstraint());
 623 }
 624
 625 /**********
 626  * Action *
 627  **********/
 628
 629 HostL07Action::~HostL07Action(){
 630   free(p_hostList);
 631   free(p_communicationAmount);
 632   free(p_computationAmount);
 633 }
 634
 635 void HostL07Action::updateBound()
 636 {
 637   double lat_current = 0.0;
 638   double lat_bound = -1.0;
 639   int i, j;
 640
 641   for (i = 0; i < m_hostNb; i++) {
 642     for (j = 0; j < m_hostNb; j++) {
 643       xbt_dynar_t route=NULL;
 644
 645       if (p_communicationAmount[i * m_hostNb + j] > 0) {
 646         double lat = 0.0;
 647         routing_platf->getRouteAndLatency(static_cast<HostL07Ptr>(((void**)p_hostList)[i])->p_netElm,
 648                                           static_cast<HostL07Ptr>(((void**)p_hostList)[j])->p_netElm,
 649                                                           &route, &lat);
 650
 651         lat_current = MAX(lat_current, lat * p_communicationAmount[i * m_hostNb + j]);
 652       }
 653     }
 654   }
 655   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 656   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 657   if ((m_latency == 0.0) && (m_suspended == 0)) {
 658     if (m_rate < 0)
 659       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), lat_bound);
 660     else
 661       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), min(m_rate, lat_bound));
 662   }
 663 }
 664
 665 int HostL07Action::unref()
 666 {
 667   m_refcount--;
 668   if (!m_refcount) {
 669     if (actionHook::is_linked())
 670           p_stateSet->erase(p_stateSet->iterator_to(*this));
 671     if (getVariable())
 672       lmm_variable_free(ptask_maxmin_system, getVariable());
 673     delete this;
 674     return 1;
 675   }
 676   return 0;
 677 }
 678
 679 void HostL07Action::cancel()
 680 {
 681   setState(SURF_ACTION_FAILED);
 682   return;
 683 }
 684
 685 void HostL07Action::suspend()
 686 {
 687   XBT_IN("(%p))", this);
 688   if (m_suspended != 2) {
 689     m_suspended = 1;
 690     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 0.0);
 691   }
 692   XBT_OUT();
 693 }
 694
 695 void HostL07Action::resume()
 696 {
 697   XBT_IN("(%p)", this);
 698   if (m_suspended != 2) {
 699     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 1.0);
 700     m_suspended = 0;
 701   }
 702   XBT_OUT();
 703 }
 704
 705 bool HostL07Action::isSuspended()
 706 {
 707   return m_suspended == 1;
 708 }
 709
 710 void HostL07Action::setMaxDuration(double duration)
 711 {                               /* FIXME: should inherit */
 712   XBT_IN("(%p,%g)", this, duration);
 713   m_maxDuration = duration;
 714   XBT_OUT();
 715 }
 716
 717 void HostL07Action::setPriority(double priority)
 718 {                               /* FIXME: should inherit */
 719   XBT_IN("(%p,%g)", this, priority);
 720   m_priority = priority;
 721   XBT_OUT();
 722 }
 723
 724 double HostL07Action::getRemains()
 725 {
 726   XBT_IN("(%p)", this);
 727   XBT_OUT();
 728   return m_remains;
 729 }