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   sg_host_t sg_host = sg_host_by_name(name);
 279
 280   xbt_assert(!surf_host_resource_priv(sg_host),
 281               "Host '%s' declared several times in the platform file.",
 282               name);
 283
 284   wk = new HostL07(this, name, NULL,
 285                                   sg_host_edge(sg_host),
 286                                                   sg_host_surfcpu(sg_host));
 287
 288   xbt_lib_set(host_lib, name, SURF_HOST_LEVEL, wk);
 289
 290   return wk;//FIXME:xbt_lib_get_elm_or_null(host_lib, name);
 291 }
 292
 293 ActionPtr HostL07Model::communicate(HostPtr src, HostPtr dst,
 294                                        double size, double rate)
 295 {
 296   void **host_list = xbt_new0(void *, 2);
 297   double *flops_amount = xbt_new0(double, 2);
 298   double *bytes_amount = xbt_new0(double, 4);
 299   ActionPtr res = NULL;
 300
 301   host_list[0] = src;
 302   host_list[1] = dst;
 303   bytes_amount[1] = size;
 304
 305   res = executeParallelTask(2, host_list,
 306                                     flops_amount,
 307                                     bytes_amount, rate);
 308
 309   return res;
 310 }
 311
 312 xbt_dynar_t HostL07Model::getRoute(HostPtr src, HostPtr dst)
 313 {
 314   xbt_dynar_t route=NULL;
 315   routing_platf->getRouteAndLatency(src->p_netElm, dst->p_netElm, &route, NULL);
 316   return route;
 317 }
 318
 319 CpuPtr CpuL07Model::createCpu(const char *name,  xbt_dynar_t powerPeak,
 320                           int pstate, double power_scale,
 321                           tmgr_trace_t power_trace, int core,
 322                           e_surf_resource_state_t state_initial,
 323                           tmgr_trace_t state_trace,
 324                           xbt_dict_t cpu_properties)
 325 {
 326   double power_initial = xbt_dynar_get_as(powerPeak, pstate, double);
 327   xbt_dynar_free(&powerPeak);   // kill memory leak
 328   sg_host_t sg_host = sg_host_by_name(name);
 329
 330   xbt_assert(!surf_host_resource_priv(sg_host),
 331               "Host '%s' declared several times in the platform file.",
 332               name);
 333
 334   CpuL07Ptr cpu = new CpuL07(this, name, cpu_properties,
 335                                      power_initial, power_scale, power_trace,
 336                          core, state_initial, state_trace);
 337
 338   sg_host_surfcpu_set(sg_host, cpu);
 339
 340   return cpu;
 341 }
 342
 343 NetworkLinkPtr NetworkL07Model::createNetworkLink(const char *name,
 344                                  double bw_initial,
 345                                  tmgr_trace_t bw_trace,
 346                                  double lat_initial,
 347                                  tmgr_trace_t lat_trace,
 348                                  e_surf_resource_state_t
 349                                  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(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
 355                       "Link '%s' declared several times in the platform file.",
 356                       name);
 357
 358   LinkL07Ptr nw_link = new LinkL07(this, name, properties,
 359                                        bw_initial, bw_trace,
 360                                        lat_initial, lat_trace,
 361                                        state_initial, state_trace,
 362                                        policy);
 363
 364   xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
 365   return nw_link;
 366 }
 367
 368 void HostL07Model::addTraces()
 369 {
 370   xbt_dict_cursor_t cursor = NULL;
 371   char *trace_name, *elm;
 372
 373   if (!trace_connect_list_host_avail)
 374     return;
 375
 376   /* Connect traces relative to cpu */
 377   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 378     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 379     CpuL07Ptr host = static_cast<CpuL07Ptr>(sg_host_surfcpu(sg_host_by_name(elm)));
 380
 381     xbt_assert(host, "Host %s undefined", elm);
 382     xbt_assert(trace, "Trace %s undefined", trace_name);
 383
 384     host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 385   }
 386
 387   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 388     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 389     CpuL07Ptr host = static_cast<CpuL07Ptr>(sg_host_surfcpu(sg_host_by_name(elm)));
 390
 391     xbt_assert(host, "Host %s undefined", elm);
 392     xbt_assert(trace, "Trace %s undefined", trace_name);
 393
 394     host->p_powerEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
 395   }
 396
 397   /* Connect traces relative to network */
 398   xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 399     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 400     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
 401
 402     xbt_assert(link, "Link %s undefined", elm);
 403     xbt_assert(trace, "Trace %s undefined", trace_name);
 404
 405     link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 406   }
 407
 408   xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
 409     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 410     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
 411
 412     xbt_assert(link, "Link %s undefined", elm);
 413     xbt_assert(trace, "Trace %s undefined", trace_name);
 414
 415     link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 416   }
 417
 418   xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
 419     tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 420     LinkL07Ptr link = static_cast<LinkL07Ptr>(xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
 421
 422     xbt_assert(link, "Link %s undefined", elm);
 423     xbt_assert(trace, "Trace %s undefined", trace_name);
 424
 425     link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 426   }
 427 }
 428
 429 /************
 430  * Resource *
 431  ************/
 432
 433 HostL07::HostL07(HostModelPtr model, const char* name, xbt_dict_t props, RoutingEdgePtr netElm, CpuPtr cpu)
 434   : Host(model, name, props, NULL, netElm, cpu)
 435 {
 436 }
 437
 438 double HostL07::getPowerPeakAt(int /*pstate_index*/)
 439 {
 440         THROW_UNIMPLEMENTED;
 441 }
 442
 443 int HostL07::getNbPstates()
 444 {
 445         THROW_UNIMPLEMENTED;
 446 }
 447
 448 void HostL07::setPstate(int /*pstate_index*/)
 449 {
 450         THROW_UNIMPLEMENTED;
 451 }
 452
 453 int HostL07::getPstate()
 454 {
 455         THROW_UNIMPLEMENTED;
 456 }
 457
 458 double HostL07::getConsumedEnergy()
 459 {
 460         THROW_UNIMPLEMENTED;
 461 }
 462
 463 CpuL07::CpuL07(CpuL07ModelPtr model, const char* name, xbt_dict_t props,
 464                      double power_initial, double power_scale, tmgr_trace_t power_trace,
 465                            int core, e_surf_resource_state_t state_initial, tmgr_trace_t state_trace)
 466  : Cpu(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, power_initial * power_scale),
 467            core, power_initial, power_scale)
 468 {
 469   xbt_assert(m_powerScale > 0, "Power has to be >0");
 470
 471   if (power_trace)
 472     p_powerEvent = tmgr_history_add_trace(history, power_trace, 0.0, 0, this);
 473   else
 474     p_powerEvent = NULL;
 475
 476   setState(state_initial);
 477   if (state_trace)
 478         p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 479 }
 480
 481 LinkL07::LinkL07(NetworkL07ModelPtr model, const char* name, xbt_dict_t props,
 482                          double bw_initial,
 483                          tmgr_trace_t bw_trace,
 484                          double lat_initial,
 485                          tmgr_trace_t lat_trace,
 486                          e_surf_resource_state_t state_initial,
 487                          tmgr_trace_t state_trace,
 488                          e_surf_link_sharing_policy_t policy)
 489  : NetworkLink(model, name, props, lmm_constraint_new(ptask_maxmin_system, this, bw_initial), history, state_trace)
 490 {
 491   m_bwCurrent = bw_initial;
 492   if (bw_trace)
 493     p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
 494
 495   setState(state_initial);
 496   m_latCurrent = lat_initial;
 497
 498   if (lat_trace)
 499         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 500
 501   if (policy == SURF_LINK_FATPIPE)
 502         lmm_constraint_shared(getConstraint());
 503 }
 504
 505 bool CpuL07::isUsed(){
 506   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 507 }
 508
 509 bool LinkL07::isUsed(){
 510   return lmm_constraint_used(ptask_maxmin_system, getConstraint());
 511 }
 512
 513 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
 514   XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
 515   if (event_type == p_powerEvent) {
 516           m_powerScale = value;
 517     lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_powerPeak * m_powerScale);
 518     if (tmgr_trace_event_free(event_type))
 519       p_powerEvent = NULL;
 520   } else if (event_type == p_stateEvent) {
 521     if (value > 0)
 522       setState(SURF_RESOURCE_ON);
 523     else
 524       setState(SURF_RESOURCE_OFF);
 525     if (tmgr_trace_event_free(event_type))
 526       p_stateEvent = NULL;
 527   } else {
 528     XBT_CRITICAL("Unknown event ! \n");
 529     xbt_abort();
 530   }
 531   return;
 532 }
 533
 534 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date){
 535   XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
 536   if (event_type == p_bwEvent) {
 537     updateBandwidth(value, date);
 538     if (tmgr_trace_event_free(event_type))
 539       p_bwEvent = NULL;
 540   } else if (event_type == p_latEvent) {
 541     updateLatency(value, date);
 542     if (tmgr_trace_event_free(event_type))
 543       p_latEvent = NULL;
 544   } else if (event_type == p_stateEvent) {
 545     if (value > 0)
 546       setState(SURF_RESOURCE_ON);
 547     else
 548       setState(SURF_RESOURCE_OFF);
 549     if (tmgr_trace_event_free(event_type))
 550       p_stateEvent = NULL;
 551   } else {
 552     XBT_CRITICAL("Unknown event ! \n");
 553     xbt_abort();
 554   }
 555   return;
 556 }
 557
 558 e_surf_resource_state_t HostL07::getState()
 559 {
 560   return p_cpu->getState();
 561 }
 562
 563 ActionPtr HostL07::execute(double size)
 564 {
 565   void **host_list = xbt_new0(void *, 1);
 566   double *flops_amount = xbt_new0(double, 1);
 567   double *bytes_amount = xbt_new0(double, 1);
 568
 569   host_list[0] = this;
 570   bytes_amount[0] = 0.0;
 571   flops_amount[0] = size;
 572
 573   return static_cast<HostL07ModelPtr>(getModel())->executeParallelTask(1, host_list,
 574                                               flops_amount,
 575                                      bytes_amount, -1);
 576 }
 577
 578 ActionPtr HostL07::sleep(double duration)
 579 {
 580   HostL07ActionPtr action = NULL;
 581
 582   XBT_IN("(%s,%g)", getName(), duration);
 583
 584   action = static_cast<HostL07ActionPtr>(execute(1.0));
 585   action->m_maxDuration = duration;
 586   action->m_suspended = 2;
 587   lmm_update_variable_weight(ptask_maxmin_system, action->getVariable(), 0.0);
 588
 589   XBT_OUT();
 590   return action;
 591 }
 592
 593 double LinkL07::getBandwidth()
 594 {
 595   return m_bwCurrent;
 596 }
 597
 598 void LinkL07::updateBandwidth(double value, double date)
 599 {
 600   m_bwCurrent = value;
 601   lmm_update_constraint_bound(ptask_maxmin_system, getConstraint(), m_bwCurrent);
 602 }
 603
 604 double LinkL07::getLatency()
 605 {
 606   return m_latCurrent;
 607 }
 608
 609 void LinkL07::updateLatency(double value, double date)
 610 {
 611   lmm_variable_t var = NULL;
 612   HostL07ActionPtr action;
 613   lmm_element_t elem = NULL;
 614
 615   m_latCurrent = value;
 616   while ((var = lmm_get_var_from_cnst(ptask_maxmin_system, getConstraint(), &elem))) {
 617     action = (HostL07ActionPtr) lmm_variable_id(var);
 618     action->updateBound();
 619   }
 620 }
 621
 622
 623 bool LinkL07::isShared()
 624 {
 625   return lmm_constraint_is_shared(getConstraint());
 626 }
 627
 628 /**********
 629  * Action *
 630  **********/
 631
 632 HostL07Action::~HostL07Action(){
 633   free(p_hostList);
 634   free(p_communicationAmount);
 635   free(p_computationAmount);
 636 }
 637
 638 void HostL07Action::updateBound()
 639 {
 640   double lat_current = 0.0;
 641   double lat_bound = -1.0;
 642   int i, j;
 643
 644   for (i = 0; i < m_hostNb; i++) {
 645     for (j = 0; j < m_hostNb; j++) {
 646       xbt_dynar_t route=NULL;
 647
 648       if (p_communicationAmount[i * m_hostNb + j] > 0) {
 649         double lat = 0.0;
 650         routing_platf->getRouteAndLatency(static_cast<HostL07Ptr>(((void**)p_hostList)[i])->p_netElm,
 651                                           static_cast<HostL07Ptr>(((void**)p_hostList)[j])->p_netElm,
 652                                                           &route, &lat);
 653
 654         lat_current = MAX(lat_current, lat * p_communicationAmount[i * m_hostNb + j]);
 655       }
 656     }
 657   }
 658   lat_bound = sg_tcp_gamma / (2.0 * lat_current);
 659   XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
 660   if ((m_latency == 0.0) && (m_suspended == 0)) {
 661     if (m_rate < 0)
 662       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), lat_bound);
 663     else
 664       lmm_update_variable_bound(ptask_maxmin_system, getVariable(), min(m_rate, lat_bound));
 665   }
 666 }
 667
 668 int HostL07Action::unref()
 669 {
 670   m_refcount--;
 671   if (!m_refcount) {
 672     if (actionHook::is_linked())
 673           p_stateSet->erase(p_stateSet->iterator_to(*this));
 674     if (getVariable())
 675       lmm_variable_free(ptask_maxmin_system, getVariable());
 676     delete this;
 677     return 1;
 678   }
 679   return 0;
 680 }
 681
 682 void HostL07Action::cancel()
 683 {
 684   setState(SURF_ACTION_FAILED);
 685   return;
 686 }
 687
 688 void HostL07Action::suspend()
 689 {
 690   XBT_IN("(%p))", this);
 691   if (m_suspended != 2) {
 692     m_suspended = 1;
 693     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 0.0);
 694   }
 695   XBT_OUT();
 696 }
 697
 698 void HostL07Action::resume()
 699 {
 700   XBT_IN("(%p)", this);
 701   if (m_suspended != 2) {
 702     lmm_update_variable_weight(ptask_maxmin_system, getVariable(), 1.0);
 703     m_suspended = 0;
 704   }
 705   XBT_OUT();
 706 }
 707
 708 bool HostL07Action::isSuspended()
 709 {
 710   return m_suspended == 1;
 711 }
 712
 713 void HostL07Action::setMaxDuration(double duration)
 714 {                               /* FIXME: should inherit */
 715   XBT_IN("(%p,%g)", this, duration);
 716   m_maxDuration = duration;
 717   XBT_OUT();
 718 }
 719
 720 void HostL07Action::setPriority(double priority)
 721 {                               /* FIXME: should inherit */
 722   XBT_IN("(%p,%g)", this, priority);
 723   m_priority = priority;
 724   XBT_OUT();
 725 }
 726
 727 double HostL07Action::getRemains()
 728 {
 729   XBT_IN("(%p)", this);
 730   XBT_OUT();
 731   return m_remains;
 732 }