src/surf/network.cpp

   1 #include "network.hpp"
   2 #include "maxmin_private.h"
   3 #include "simgrid/sg_config.h"
   4
   5 extern "C" {
   6 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
   7                                 "Logging specific to the SURF network module");
   8 }
   9
  10 NetworkCm02ModelPtr surf_network_model = NULL;
  11
  12 double sg_sender_gap = 0.0;
  13 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
  14 double sg_bandwidth_factor = 1.0;       /* default value; can be set by model or from command line */
  15 double sg_weight_S_parameter = 0.0;     /* default value; can be set by model or from command line */
  16
  17 double sg_tcp_gamma = 0.0;
  18 int sg_network_crosstraffic = 0;
  19
  20 /*********
  21  * Model *
  22  *********/
  23
  24 /************************************************************************/
  25 /* New model based on optimizations discussed during Pedro Velho's thesis*/
  26 /************************************************************************/
  27 /* @techreport{VELHO:2011:HAL-00646896:1, */
  28 /*      url = {http://hal.inria.fr/hal-00646896/en/}, */
  29 /*      title = {{Flow-level network models: have we reached the limits?}}, */
  30 /*      author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
  31 /*      type = {Rapport de recherche}, */
  32 /*      institution = {INRIA}, */
  33 /*      number = {RR-7821}, */
  34 /*      year = {2011}, */
  35 /*      month = Nov, */
  36 /*      pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
  37 /*  } */
  38 void surf_network_model_init_LegrandVelho(void)
  39 {
  40   if (surf_network_model)
  41     return;
  42
  43   surf_network_model = new NetworkCm02Model();
  44   xbt_dynar_push(model_list, &surf_network_model);
  45
  46   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor",
  47                             13.01);
  48   xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
  49                             0.97);
  50   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 20537);
  51 }
  52
  53 /***************************************************************************/
  54 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
  55 /***************************************************************************/
  56 /* @TechReport{      rr-lip2002-40, */
  57 /*   author        = {Henri Casanova and Loris Marchal}, */
  58 /*   institution   = {LIP}, */
  59 /*   title         = {A Network Model for Simulation of Grid Application}, */
  60 /*   number        = {2002-40}, */
  61 /*   month         = {oct}, */
  62 /*   year          = {2002} */
  63 /* } */
  64 void surf_network_model_init_CM02(void)
  65 {
  66
  67   if (surf_network_model)
  68     return;
  69
  70   surf_network_model = new NetworkCm02Model();
  71   xbt_dynar_push(model_list, &surf_network_model);
  72
  73   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
  74   xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
  75                             1.0);
  76   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 0.0);
  77 }
  78
  79 /***************************************************************************/
  80 /* The models from Steven H. Low                                           */
  81 /***************************************************************************/
  82 /* @article{Low03,                                                         */
  83 /*   author={Steven H. Low},                                               */
  84 /*   title={A Duality Model of {TCP} and Queue Management Algorithms},     */
  85 /*   year={2003},                                                          */
  86 /*   journal={{IEEE/ACM} Transactions on Networking},                      */
  87 /*    volume={11}, number={4},                                             */
  88 /*  }                                                                      */
  89 void surf_network_model_init_Reno(void)
  90 {
  91   if (surf_network_model)
  92     return;
  93
  94   surf_network_model = new NetworkCm02Model();
  95   xbt_dynar_push(model_list, &surf_network_model);
  96   lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
  97                                     func_reno_fpi);
  98   surf_network_model->f_networkSolve = lagrange_solve;
  99
 100   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
 101   xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
 102                             0.92);
 103   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
 104 }
 105
 106
 107 void surf_network_model_init_Reno2(void)
 108 {
 109   if (surf_network_model)
 110     return;
 111
 112   surf_network_model = new NetworkCm02Model();
 113   xbt_dynar_push(model_list, &surf_network_model);
 114   lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
 115                                     func_reno2_fpi);
 116   surf_network_model->f_networkSolve = lagrange_solve;
 117
 118   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
 119   xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
 120                             0.92);
 121   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S_parameter",
 122                             8775);
 123 }
 124
 125 void surf_network_model_init_Vegas(void)
 126 {
 127   if (surf_network_model)
 128     return;
 129
 130   surf_network_model = new NetworkCm02Model();
 131   xbt_dynar_push(model_list, &surf_network_model);
 132   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
 133                                     func_vegas_fpi);
 134   surf_network_model->f_networkSolve = lagrange_solve;
 135
 136   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
 137   xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
 138                             0.92);
 139   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
 140 }
 141
 142 NetworkCm02Model::NetworkCm02Model() : NetworkCm02Model("network"){
 143 }
 144
 145 NetworkCm02Model::NetworkCm02Model(string name) : Model(name){
 146   NetworkCm02ActionLmmPtr comm;
 147
 148   char *optim = xbt_cfg_get_string(_sg_cfg_set, "network/optim");
 149   int select =
 150       xbt_cfg_get_boolean(_sg_cfg_set, "network/maxmin_selective_update");
 151
 152   if (!strcmp(optim, "Full")) {
 153     p_updateMechanism = UM_FULL;
 154     m_selectiveUpdate = select;
 155   } else if (!strcmp(optim, "Lazy")) {
 156     p_updateMechanism = UM_LAZY;
 157     m_selectiveUpdate = 1;
 158     xbt_assert((select == 1)
 159                ||
 160                (xbt_cfg_is_default_value
 161                 (_sg_cfg_set, "network/maxmin_selective_update")),
 162                "Disabling selective update while using the lazy update mechanism is dumb!");
 163   } else {
 164     xbt_die("Unsupported optimization (%s) for this model", optim);
 165   }
 166
 167   if (!p_maxminSystem)
 168         p_maxminSystem = lmm_system_new(m_selectiveUpdate);
 169
 170   routing_model_create(createResource("__loopback__",
 171                                                    498000000, NULL, 0.000015, NULL,
 172                                                    SURF_RESOURCE_ON, NULL,
 173                                                    SURF_LINK_FATPIPE, NULL));
 174
 175   if (p_updateMechanism == UM_LAZY) {
 176         p_actionHeap = xbt_heap_new(8, NULL);
 177         xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
 178         p_modifiedSet = xbt_swag_new(xbt_swag_offset((*comm), p_actionListHookup));
 179         p_maxminSystem->keep_track = p_modifiedSet;
 180   }
 181 }
 182
 183 NetworkCm02LinkLmmPtr NetworkCm02Model::createResource(const char *name,
 184                                  double bw_initial,
 185                                  tmgr_trace_t bw_trace,
 186                                  double lat_initial,
 187                                  tmgr_trace_t lat_trace,
 188                                  e_surf_resource_state_t state_initial,
 189                                  tmgr_trace_t state_trace,
 190                                  e_surf_link_sharing_policy_t policy,
 191                                  xbt_dict_t properties)
 192 {
 193   xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
 194              "Link '%s' declared several times in the platform file.",
 195              name);
 196
 197   NetworkCm02LinkLmmPtr nw_link =
 198                   new NetworkCm02LinkLmm(this, name, properties, p_maxminSystem, sg_bandwidth_factor * bw_initial, history,
 199                                                  state_initial, state_trace, bw_initial, bw_trace, lat_initial, lat_trace, policy);
 200
 201
 202   xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
 203   XBT_DEBUG("Create link '%s'",name);
 204
 205   return nw_link;
 206 }
 207
 208 void NetworkCm02Model::updateActionsStateLazy(double now, double delta)
 209 {
 210   NetworkCm02ActionLmmPtr action;
 211   while ((xbt_heap_size(p_actionHeap) > 0)
 212          && (double_equals(xbt_heap_maxkey(p_actionHeap), now))) {
 213     action = (NetworkCm02ActionLmmPtr) xbt_heap_pop(p_actionHeap);
 214     XBT_DEBUG("Something happened to action %p", action);
 215 #ifdef HAVE_TRACING
 216     if (TRACE_is_enabled()) {
 217       int n = lmm_get_number_of_cnst_from_var(p_maxminSystem, action->p_variable);
 218       unsigned int i;
 219       for (i = 0; i < n; i++){
 220         lmm_constraint_t constraint = lmm_get_cnst_from_var(p_maxminSystem,
 221                                                             action->p_variable,
 222                                                             i);
 223         NetworkCm02LinkPtr link = (NetworkCm02LinkPtr) lmm_constraint_id(constraint);
 224         TRACE_surf_link_set_utilization(link->m_name,
 225                                         action->p_category,
 226                                         (lmm_variable_getvalue(action->p_variable)*
 227                                             lmm_get_cnst_weight_from_var(p_maxminSystem,
 228                                                 action->p_variable,
 229                                                 i)),
 230                                         action->m_lastUpdate,
 231                                         now - action->m_lastUpdate);
 232       }
 233     }
 234 #endif
 235
 236     // if I am wearing a latency hat
 237     if (action->m_hat == LATENCY) {
 238       XBT_DEBUG("Latency paid for action %p. Activating", action);
 239       lmm_update_variable_weight(p_maxminSystem, action->p_variable, action->m_weight);
 240       action->heapRemove(p_actionHeap);
 241       action->m_lastUpdate = surf_get_clock();
 242
 243         // if I am wearing a max_duration or normal hat
 244     } else if (action->m_hat == MAX_DURATION ||
 245         action->m_hat == NORMAL) {
 246         // no need to communicate anymore
 247         // assume that flows that reached max_duration have remaining of 0
 248       action->m_finish = surf_get_clock();
 249       XBT_DEBUG("Action %p finished", action);
 250       action->m_remains = 0;
 251       action->m_finish = surf_get_clock();
 252       action->setState(SURF_ACTION_DONE);
 253       action->heapRemove(p_actionHeap);
 254
 255       action->gapRemove();
 256     }
 257   }
 258   return;
 259 }
 260
 261 xbt_dynar_t NetworkCm02Model::getRoute(RoutingEdgePtr src, RoutingEdgePtr dst)
 262 {
 263   xbt_dynar_t route = NULL;
 264   routing_platf->getRouteAndLatency(src, dst, &route, NULL);
 265   return route;
 266 }
 267
 268 NetworkCm02ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
 269                                                 double size, double rate)
 270 {
 271   unsigned int i;
 272   NetworkCm02LinkLmmPtr link;
 273   int failed = 0;
 274   NetworkCm02ActionLmmPtr action = NULL;
 275   double bandwidth_bound;
 276   double latency = 0.0;
 277   xbt_dynar_t back_route = NULL;
 278   int constraints_per_variable = 0;
 279
 280   xbt_dynar_t route = xbt_dynar_new(sizeof(RoutingEdgePtr), NULL);
 281
 282   XBT_IN("(%s,%s,%g,%g)", src->p_name, dst->p_name, size, rate);
 283
 284   routing_platf->getRouteAndLatency(src, dst, &route, &latency);
 285   xbt_assert(!xbt_dynar_is_empty(route) || latency,
 286              "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
 287              src->p_name, dst->p_name);
 288
 289   xbt_dynar_foreach(route, i, link) {
 290     if (link->p_stateCurrent == SURF_RESOURCE_OFF) {
 291       failed = 1;
 292       break;
 293     }
 294   }
 295   if (sg_network_crosstraffic == 1) {
 296           routing_platf->getRouteAndLatency(dst, src, &back_route, NULL);
 297     xbt_dynar_foreach(back_route, i, link) {
 298       if (link->p_stateCurrent == SURF_RESOURCE_OFF) {
 299         failed = 1;
 300         break;
 301       }
 302     }
 303   }
 304
 305   action = new NetworkCm02ActionLmm(this, size, failed);
 306
 307 #ifdef HAVE_LATENCY_BOUND_TRACKING
 308   action->m_latencyLimited = 0;
 309 #endif
 310   action->m_weight = action->m_latency = latency;
 311
 312   xbt_swag_insert(action, action->p_stateSet);
 313   action->m_rate = rate;
 314   if (p_updateMechanism == UM_LAZY) {
 315     action->m_indexHeap = -1;
 316     action->m_lastUpdate = surf_get_clock();
 317   }
 318
 319   bandwidth_bound = -1.0;
 320   if (sg_weight_S_parameter > 0) {
 321     xbt_dynar_foreach(route, i, link) {
 322       action->m_weight +=
 323          sg_weight_S_parameter /
 324          (link->p_power.peak * link->p_power.scale);
 325     }
 326   }
 327   xbt_dynar_foreach(route, i, link) {
 328     double bb = bandwidthFactor(size) *
 329         (link->p_power.peak * link->p_power.scale);
 330     bandwidth_bound =
 331         (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
 332   }
 333
 334   action->m_latCurrent = action->m_latency;
 335   action->m_latency *= latencyFactor(size);
 336   action->m_rate = bandwidthConstraint(action->m_rate, bandwidth_bound, size);
 337   if (m_haveGap) {
 338     xbt_assert(!xbt_dynar_is_empty(route),
 339                "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
 340
 341     link = *(NetworkCm02LinkLmmPtr *) xbt_dynar_get_ptr(route, 0);
 342     gapAppend(size, link, action);
 343     XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
 344               action, src->p_name, dst->p_name, action->m_senderGap,
 345               action->m_latency);
 346   }
 347
 348   constraints_per_variable = xbt_dynar_length(route);
 349   if (back_route != NULL)
 350     constraints_per_variable += xbt_dynar_length(back_route);
 351
 352   if (action->m_latency > 0) {
 353     action->p_variable = lmm_variable_new(p_maxminSystem, action, 0.0, -1.0,
 354                          constraints_per_variable);
 355     if (p_updateMechanism == UM_LAZY) {
 356       // add to the heap the event when the latency is payed
 357       XBT_DEBUG("Added action (%p) one latency event at date %f", action,
 358                 action->m_latency + action->m_lastUpdate);
 359       action->heapInsert(p_actionHeap, action->m_latency + action->m_lastUpdate, xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
 360     }
 361   } else
 362     action->p_variable = lmm_variable_new(p_maxminSystem, action, 1.0, -1.0, constraints_per_variable);
 363
 364   if (action->m_rate < 0) {
 365     lmm_update_variable_bound(p_maxminSystem, action->p_variable, (action->m_latCurrent > 0) ? sg_tcp_gamma / (2.0 * action->m_latCurrent) : -1.0);
 366   } else {
 367     lmm_update_variable_bound(p_maxminSystem, action->p_variable, (action->m_latCurrent > 0) ? min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)) : action->m_rate);
 368   }
 369
 370   xbt_dynar_foreach(route, i, link) {
 371     lmm_expand(p_maxminSystem, link->p_constraint, action->p_variable, 1.0);
 372   }
 373
 374   if (sg_network_crosstraffic == 1) {
 375     XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
 376     xbt_dynar_foreach(back_route, i, link) {
 377       lmm_expand(p_maxminSystem, link->p_constraint, action->p_variable, .05);
 378     }
 379   }
 380
 381   xbt_dynar_free(&route);
 382   XBT_OUT();
 383
 384   return action;
 385 }
 386
 387 double NetworkCm02Model::latencyFactor(double size) {
 388   return sg_latency_factor;
 389 }
 390
 391 double NetworkCm02Model::bandwidthFactor(double size) {
 392   return sg_bandwidth_factor;
 393 }
 394
 395 double NetworkCm02Model::bandwidthConstraint(double rate, double bound, double size) {
 396   return rate;
 397 }
 398
 399 /************
 400  * Resource *
 401  ************/
 402 NetworkCm02LinkLmm::NetworkCm02LinkLmm(NetworkCm02ModelPtr model, const char *name, xbt_dict_t props,
 403                                    lmm_system_t system,
 404                                    double constraint_value,
 405                                    tmgr_history_t history,
 406                                    e_surf_resource_state_t state_init,
 407                                    tmgr_trace_t state_trace,
 408                                    double metric_peak,
 409                                    tmgr_trace_t metric_trace,
 410                                    double lat_initial,
 411                                    tmgr_trace_t lat_trace,
 412                                    e_surf_link_sharing_policy_t policy)
 413 : ResourceLmm(model, name, props, system, constraint_value, history, state_init, state_trace, metric_peak, metric_trace)
 414 {
 415   m_latCurrent = lat_initial;
 416   if (lat_trace)
 417         p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
 418
 419   if (policy == SURF_LINK_FATPIPE)
 420         lmm_constraint_shared(p_constraint);
 421 }
 422
 423 bool NetworkCm02LinkLmm::isUsed()
 424 {
 425   return lmm_constraint_used(p_model->p_maxminSystem, p_constraint);
 426 }
 427
 428 double NetworkCm02Link::getLatency()
 429 {
 430   return m_latCurrent;
 431 }
 432
 433 double NetworkCm02LinkLmm::getBandwidth()
 434 {
 435   return p_power.peak * p_power.scale;
 436 }
 437
 438 bool NetworkCm02LinkLmm::isShared()
 439 {
 440   return lmm_constraint_is_shared(p_constraint);
 441 }
 442
 443 void NetworkCm02LinkLmm::updateState(tmgr_trace_event_t event_type,
 444                                       double value, double date)
 445 {
 446   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
 447   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
 448   /*     value, event_type); */
 449
 450   if (event_type == p_power.event) {
 451     double delta =
 452         sg_weight_S_parameter / value - sg_weight_S_parameter /
 453         (p_power.peak * p_power.scale);
 454     lmm_variable_t var = NULL;
 455     lmm_element_t elem = NULL;
 456     NetworkCm02ActionLmmPtr action = NULL;
 457
 458     p_power.peak = value;
 459     lmm_update_constraint_bound(p_model->p_maxminSystem,
 460                                 p_constraint,
 461                                 sg_bandwidth_factor *
 462                                 (p_power.peak * p_power.scale));
 463 #ifdef HAVE_TRACING
 464     TRACE_surf_link_set_bandwidth(date, m_name, sg_bandwidth_factor * p_power.peak * p_power.scale);
 465 #endif
 466     if (sg_weight_S_parameter > 0) {
 467       while ((var = lmm_get_var_from_cnst(p_model->p_maxminSystem, p_constraint, &elem))) {
 468         action = (NetworkCm02ActionLmmPtr) lmm_variable_id(var);
 469         action->m_weight += delta;
 470         if (!action->m_suspended)
 471           lmm_update_variable_weight(p_model->p_maxminSystem, action->p_variable, action->m_weight);
 472       }
 473     }
 474     if (tmgr_trace_event_free(event_type))
 475       p_power.event = NULL;
 476   } else if (event_type == p_latEvent) {
 477     double delta = value - m_latCurrent;
 478     lmm_variable_t var = NULL;
 479     lmm_element_t elem = NULL;
 480     NetworkCm02ActionLmmPtr action = NULL;
 481
 482     m_latCurrent = value;
 483     while ((var = lmm_get_var_from_cnst(p_model->p_maxminSystem, p_constraint, &elem))) {
 484       action = (NetworkCm02ActionLmmPtr) lmm_variable_id(var);
 485       action->m_latCurrent += delta;
 486       action->m_weight += delta;
 487       if (action->m_rate < 0)
 488         lmm_update_variable_bound(p_model->p_maxminSystem, action->p_variable, sg_tcp_gamma / (2.0 * action->m_latCurrent));
 489       else {
 490         lmm_update_variable_bound(p_model->p_maxminSystem, action->p_variable,
 491                                   min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)));
 492
 493         if (action->m_rate < sg_tcp_gamma / (2.0 * action->m_latCurrent)) {
 494           XBT_INFO("Flow is limited BYBANDWIDTH");
 495         } else {
 496           XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
 497                    action->m_latCurrent);
 498         }
 499       }
 500       if (!action->m_suspended)
 501         lmm_update_variable_weight(p_model->p_maxminSystem, action->p_variable, action->m_weight);
 502
 503     }
 504     if (tmgr_trace_event_free(event_type))
 505       p_latEvent = NULL;
 506   } else if (event_type == p_stateEvent) {
 507     if (value > 0)
 508       p_stateCurrent = SURF_RESOURCE_ON;
 509     else {
 510       lmm_constraint_t cnst = p_constraint;
 511       lmm_variable_t var = NULL;
 512       lmm_element_t elem = NULL;
 513
 514       p_stateCurrent = SURF_RESOURCE_OFF;
 515       while ((var = lmm_get_var_from_cnst(p_model->p_maxminSystem, cnst, &elem))) {
 516         ActionPtr action = (ActionPtr) lmm_variable_id(var);
 517
 518         if (action->getState() == SURF_ACTION_RUNNING ||
 519             action->getState() == SURF_ACTION_READY) {
 520           action->m_finish = date;
 521           action->setState(SURF_ACTION_FAILED);
 522         }
 523       }
 524     }
 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
 532   XBT_DEBUG
 533       ("There were a resource state event, need to update actions related to the constraint (%p)",
 534        p_constraint);
 535   return;
 536 }
 537
 538 /**********
 539  * Action *
 540  **********/
 541 void NetworkCm02ActionLmm::updateRemainingLazy(double now)
 542 {
 543   double delta = 0.0;
 544
 545   if (m_suspended != 0)
 546     return;
 547
 548   delta = now - m_lastUpdate;
 549
 550   if (m_remains > 0) {
 551     XBT_DEBUG("Updating action(%p): remains was %lf, last_update was: %lf", this, m_remains, m_lastUpdate);
 552     double_update(&(m_remains), m_lastValue * delta);
 553
 554     XBT_DEBUG("Updating action(%p): remains is now %lf", this, m_remains);
 555   }
 556
 557   if (m_maxDuration != NO_MAX_DURATION)
 558     double_update(&m_maxDuration, delta);
 559
 560   if (m_remains <= 0 &&
 561       (lmm_get_variable_weight(p_variable) > 0)) {
 562     m_finish = surf_get_clock();
 563     setState(SURF_ACTION_DONE);
 564
 565     heapRemove(p_model->p_actionHeap);
 566   } else if (((m_maxDuration != NO_MAX_DURATION)
 567       && (m_maxDuration <= 0))) {
 568     m_finish = surf_get_clock();
 569     setState(SURF_ACTION_DONE);
 570     heapRemove(p_model->p_actionHeap);
 571   }
 572
 573   m_lastUpdate = now;
 574   m_lastValue = lmm_variable_getvalue(p_variable);
 575 }
 576 void NetworkCm02ActionLmm::recycle()
 577 {
 578   return;
 579 }
 580