src/surf/workstation.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
   4
   5 /* This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the license (GNU LGPL) which comes with this package. */
   7
   8 #include "xbt/ex.h"
   9 #include "xbt/dict.h"
  10 #include "gras_config.h"
  11 #include "workstation_private.h"
  12 #include "cpu_private.h"
  13 #include "network_private.h"
  14
  15 surf_workstation_resource_t surf_workstation_resource = NULL;
  16 xbt_dict_t workstation_set = NULL;
  17 static xbt_dict_t parallel_task_network_link_set = NULL;
  18
  19 static workstation_CLM03_t workstation_new(const char *name,
  20                                      void *cpu, void *card)
  21 {
  22   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  23
  24   workstation->resource = (surf_resource_t) surf_workstation_resource;
  25   workstation->name = xbt_strdup(name);
  26   workstation->cpu = cpu;
  27   workstation->network_card = card;
  28
  29   return workstation;
  30 }
  31
  32 static void workstation_free(void *workstation)
  33 {
  34   free(((workstation_CLM03_t)workstation)->name);
  35   free(workstation);
  36 }
  37
  38 static void create_workstations(void)
  39 {
  40   xbt_dict_cursor_t cursor = NULL;
  41   char *name = NULL;
  42   void *cpu = NULL;
  43   void *nw_card = NULL;
  44
  45   xbt_dict_foreach(cpu_set, cursor, name, cpu) {
  46     nw_card = xbt_dict_get_or_null(network_card_set, name);
  47     xbt_assert1(nw_card,
  48                 "No corresponding card found for %s",name);
  49
  50     xbt_dict_set(workstation_set, name,
  51                  workstation_new(name, cpu, nw_card), workstation_free);
  52   }
  53 }
  54
  55 static void *name_service(const char *name)
  56 {
  57   return xbt_dict_get_or_null(workstation_set, name);
  58 }
  59
  60 static const char *get_resource_name(void *resource_id)
  61 {
  62   return ((workstation_CLM03_t) resource_id)->name;
  63 }
  64
  65 static int resource_used(void *resource_id)
  66 {
  67   xbt_assert0(0,
  68               "Workstation is a virtual resource. I should not be there!");
  69   return 0;
  70 }
  71
  72 static int parallel_action_free(surf_action_t action)
  73 {
  74   action->using--;
  75   if(!action->using) {
  76     xbt_swag_remove(action, action->state_set);
  77     if(((surf_action_parallel_task_CSL05_t)action)->variable)
  78       lmm_variable_free(maxmin_system, ((surf_action_parallel_task_CSL05_t)action)->variable);
  79     free(action);
  80     return 1;
  81   }
  82   return 0;
  83 }
  84
  85 static void parallel_action_use(surf_action_t action)
  86 {
  87   action->using++;
  88 }
  89
  90 static int action_free(surf_action_t action)
  91 {
  92   if(action->resource_type==(surf_resource_t)surf_network_resource)
  93     return surf_network_resource->common_public->action_free(action);
  94   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
  95     return surf_cpu_resource->common_public->action_free(action);
  96   else if(action->resource_type==(surf_resource_t)surf_workstation_resource)
  97     return parallel_action_free(action);
  98   else DIE_IMPOSSIBLE;
  99   return 0;
 100 }
 101
 102 static void action_use(surf_action_t action)
 103 {
 104   if(action->resource_type==(surf_resource_t)surf_network_resource)
 105     surf_network_resource->common_public->action_use(action);
 106   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 107     surf_cpu_resource->common_public->action_use(action);
 108   else if(action->resource_type==(surf_resource_t)surf_workstation_resource)
 109     parallel_action_use(action);
 110   else DIE_IMPOSSIBLE;
 111   return;
 112 }
 113
 114 static void action_cancel(surf_action_t action)
 115 {
 116   if(action->resource_type==(surf_resource_t)surf_network_resource)
 117     surf_network_resource->common_public->action_cancel(action);
 118   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 119     surf_cpu_resource->common_public->action_cancel(action);
 120   else if(action->resource_type==(surf_resource_t)surf_workstation_resource)
 121     parallel_action_use(action);
 122   else DIE_IMPOSSIBLE;
 123   return;
 124 }
 125
 126 static void action_recycle(surf_action_t action)
 127 {
 128   DIE_IMPOSSIBLE;
 129   return;
 130 }
 131
 132 static void action_change_state(surf_action_t action,
 133                                 e_surf_action_state_t state)
 134 {
 135   if(action->resource_type==(surf_resource_t)surf_network_resource)
 136     surf_network_resource->common_public->action_change_state(action,state);
 137   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 138     surf_cpu_resource->common_public->action_change_state(action,state);
 139   else if(action->resource_type==(surf_resource_t)surf_workstation_resource)
 140     surf_action_change_state(action, state);
 141   else DIE_IMPOSSIBLE;
 142   return;
 143 }
 144
 145 static double share_resources(double now)
 146 {
 147   s_surf_action_parallel_task_CSL05_t action;
 148   return generic_maxmin_share_resources(surf_workstation_resource->common_public->
 149                                         states.running_action_set,
 150                                         xbt_swag_offset(action, variable));
 151 }
 152
 153 static void update_actions_state(double now, double delta)
 154 {
 155   surf_action_parallel_task_CSL05_t action = NULL;
 156   surf_action_parallel_task_CSL05_t next_action = NULL;
 157   xbt_swag_t running_actions =
 158       surf_workstation_resource->common_public->states.running_action_set;
 159   /* FIXME: unused
 160   xbt_swag_t failed_actions =
 161       surf_workstation_resource->common_public->states.failed_action_set;
 162   */
 163
 164   xbt_swag_foreach_safe(action, next_action, running_actions) {
 165     double_update(&(action->generic_action.remains),
 166         lmm_variable_getvalue(action->variable) * delta);
 167     if (action->generic_action.max_duration != NO_MAX_DURATION)
 168       double_update(&(action->generic_action.max_duration), delta);
 169     if ((action->generic_action.remains <= 0) &&
 170         (lmm_get_variable_weight(action->variable)>0)) {
 171       action->generic_action.finish = surf_get_clock();
 172       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 173     } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
 174                (action->generic_action.max_duration <= 0)) {
 175       action->generic_action.finish = surf_get_clock();
 176       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 177     } else {                    /* Need to check that none of the resource has failed */
 178       lmm_constraint_t cnst = NULL;
 179       int i = 0;
 180       surf_resource_t resource = NULL;
 181
 182       while ((cnst =
 183               lmm_get_cnst_from_var(maxmin_system, action->variable,
 184                                     i++))) {
 185         resource = (surf_resource_t) lmm_constraint_id(cnst);
 186         if(resource== (surf_resource_t) surf_cpu_resource) {
 187           cpu_Cas01_t cpu = lmm_constraint_id(cnst);
 188           if (cpu->state_current == SURF_CPU_OFF) {
 189             action->generic_action.finish = surf_get_clock();
 190             action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 191             break;
 192           }
 193         } else if (resource== (surf_resource_t) surf_network_resource) {
 194           network_link_CM02_t nw_link = lmm_constraint_id(cnst);
 195
 196           if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
 197             action->generic_action.finish = surf_get_clock();
 198             action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 199             break;
 200           }
 201         }
 202       }
 203     }
 204   }
 205
 206   return;
 207 }
 208
 209 static void update_resource_state(void *id,
 210                                   tmgr_trace_event_t event_type,
 211                                   double value)
 212 {
 213   return;
 214 }
 215
 216 static surf_action_t execute(void *workstation, double size)
 217 {
 218   return surf_cpu_resource->extension_public->
 219       execute(((workstation_CLM03_t) workstation)->cpu, size);
 220 }
 221
 222 static surf_action_t action_sleep(void *workstation, double duration)
 223 {
 224   return surf_cpu_resource->extension_public->
 225       sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 226 }
 227
 228 static void action_suspend(surf_action_t action)
 229 {
 230   if(action->resource_type==(surf_resource_t)surf_network_resource)
 231     surf_network_resource->common_public->suspend(action);
 232   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 233     surf_cpu_resource->common_public->suspend(action);
 234   else DIE_IMPOSSIBLE;
 235 }
 236
 237 static void action_resume(surf_action_t action)
 238 {
 239   if(action->resource_type==(surf_resource_t)surf_network_resource)
 240     surf_network_resource->common_public->resume(action);
 241   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 242     surf_cpu_resource->common_public->resume(action);
 243   else DIE_IMPOSSIBLE;
 244 }
 245
 246 static int action_is_suspended(surf_action_t action)
 247 {
 248   if(action->resource_type==(surf_resource_t)surf_network_resource)
 249     return surf_network_resource->common_public->is_suspended(action);
 250   if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 251     return surf_cpu_resource->common_public->is_suspended(action);
 252   DIE_IMPOSSIBLE;
 253 }
 254
 255 static void action_set_max_duration(surf_action_t action, double duration)
 256 {
 257   if(action->resource_type==(surf_resource_t)surf_network_resource)
 258     surf_network_resource->common_public->set_max_duration(action,duration);
 259   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 260     surf_cpu_resource->common_public->set_max_duration(action,duration);
 261   else  DIE_IMPOSSIBLE;
 262 }
 263
 264 static void action_set_priority(surf_action_t action, double priority)
 265 {
 266   if(action->resource_type==(surf_resource_t)surf_network_resource)
 267     surf_network_resource->common_public->set_priority(action,priority);
 268   else if(action->resource_type==(surf_resource_t)surf_cpu_resource)
 269     surf_cpu_resource->common_public->set_priority(action,priority);
 270   else  DIE_IMPOSSIBLE;
 271 }
 272
 273 static surf_action_t communicate(void *workstation_src,
 274                                  void *workstation_dst, double size,
 275                                  double rate)
 276 {
 277   return surf_network_resource->extension_public->
 278       communicate(((workstation_CLM03_t) workstation_src)->network_card,
 279                   ((workstation_CLM03_t) workstation_dst)->network_card, size, rate);
 280 }
 281
 282 static e_surf_cpu_state_t get_state(void *workstation)
 283 {
 284   return surf_cpu_resource->extension_public->
 285       get_state(((workstation_CLM03_t) workstation)->cpu);
 286 }
 287
 288 static double get_speed(void *workstation, double load)
 289 {
 290   return surf_cpu_resource->extension_public->
 291       get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 292 }
 293
 294 static double get_available_speed(void *workstation)
 295 {
 296   return surf_cpu_resource->extension_public->
 297       get_available_speed(((workstation_CLM03_t) workstation)->cpu);
 298 }
 299
 300 static surf_action_t execute_parallel_task_bogus (int workstation_nb,
 301                                             void **workstation_list,
 302                                             double *computation_amount,
 303                                             double *communication_amount,
 304                                             double amount,
 305                                             double rate)
 306 {
 307   xbt_assert0(0,"This model does not implement parallel tasks");
 308 }
 309
 310 static surf_action_t execute_parallel_task (int workstation_nb,
 311                                             void **workstation_list,
 312                                             double *computation_amount,
 313                                             double *communication_amount,
 314                                             double amount,
 315                                             double rate)
 316 {
 317   surf_action_parallel_task_CSL05_t action = NULL;
 318   int i, j, k;
 319   int nb_link = 0;
 320   int nb_host = 0;
 321
 322   if (parallel_task_network_link_set == NULL) {
 323     parallel_task_network_link_set = xbt_dict_new_ext(workstation_nb * workstation_nb * 10);
 324   }
 325
 326   /* Compute the number of affected resources... */
 327   for(i=0; i< workstation_nb; i++) {
 328     for(j=0; j< workstation_nb; j++) {
 329       network_card_CM02_t card_src = ((workstation_CLM03_t*)workstation_list)[i]->network_card;
 330       network_card_CM02_t card_dst = ((workstation_CLM03_t*)workstation_list)[j]->network_card;
 331       int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 332       network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 333
 334       if(communication_amount[i*workstation_nb+j]>0)
 335         for(k=0; k< route_size; k++) {
 336           xbt_dict_set(parallel_task_network_link_set, route[k]->name, route[k], NULL);
 337         }
 338     }
 339   }
 340
 341   nb_link = xbt_dict_length(parallel_task_network_link_set);
 342   xbt_dict_reset(parallel_task_network_link_set);
 343
 344   for (i = 0; i<workstation_nb; i++)
 345     if(computation_amount[i]>0) nb_host++;
 346
 347   if(nb_link + workstation_nb == 0)
 348     return NULL;
 349
 350   action = xbt_new0(s_surf_action_parallel_task_CSL05_t, 1);
 351   action->generic_action.using = 1;
 352   action->generic_action.cost = amount;
 353   action->generic_action.remains = amount;
 354   action->generic_action.max_duration = NO_MAX_DURATION;
 355   action->generic_action.start = surf_get_clock();
 356   action->generic_action.finish = -1.0;
 357   action->generic_action.resource_type =
 358       (surf_resource_t) surf_workstation_resource;
 359   action->suspended = 0;  /* Should be useless because of the
 360                              calloc but it seems to help valgrind... */
 361   action->generic_action.state_set =
 362       surf_workstation_resource->common_public->states.running_action_set;
 363
 364   xbt_swag_insert(action, action->generic_action.state_set);
 365   action->rate = rate;
 366
 367   if(action->rate>0)
 368     action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
 369                                         nb_host + nb_link);
 370   else
 371     action->variable = lmm_variable_new(maxmin_system, action, 1.0, action->rate,
 372                                         nb_host + nb_link);
 373
 374   for (i = 0; i<workstation_nb; i++)
 375     if(computation_amount[i]>0)
 376       lmm_expand(maxmin_system, ((cpu_Cas01_t) ((workstation_CLM03_t) workstation_list[i])->cpu)->constraint,
 377                  action->variable, computation_amount[i]);
 378
 379   for (i=0; i<workstation_nb; i++) {
 380     for(j=0; j< workstation_nb; j++) {
 381       network_card_CM02_t card_src = ((workstation_CLM03_t*)workstation_list)[i]->network_card;
 382       network_card_CM02_t card_dst = ((workstation_CLM03_t*)workstation_list)[j]->network_card;
 383       int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 384       network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 385
 386       for(k=0; k< route_size; k++) {
 387         if(communication_amount[i*workstation_nb+j]>0) {
 388           lmm_expand_add(maxmin_system, route[k]->constraint,
 389                        action->variable, communication_amount[i*workstation_nb+j]);
 390         }
 391       }
 392     }
 393   }
 394
 395   return (surf_action_t) action;
 396 }
 397
 398 /* returns an array of network_link_CM02_t */
 399 static const void** get_route(void *src, void *dst) {
 400   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 401   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 402   return surf_network_resource->extension_public->get_route(workstation_src->network_card, workstation_dst->network_card);
 403 }
 404
 405 static int get_route_size(void *src, void *dst) {
 406   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 407   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 408   return surf_network_resource->extension_public->get_route_size(workstation_src->network_card, workstation_dst->network_card);
 409 }
 410
 411 static const char *get_link_name(const void *link) {
 412   return surf_network_resource->extension_public->get_link_name(link);
 413 }
 414
 415 static double get_link_bandwidth(const void *link) {
 416   return surf_network_resource->extension_public->get_link_bandwidth(link);
 417 }
 418
 419 static double get_link_latency(const void *link) {
 420   return surf_network_resource->extension_public->get_link_latency(link);
 421 }
 422
 423 static void finalize(void)
 424 {
 425   xbt_dict_free(&workstation_set);
 426   xbt_swag_free(surf_workstation_resource->common_public->states.ready_action_set);
 427   xbt_swag_free(surf_workstation_resource->common_public->states.
 428                 running_action_set);
 429   xbt_swag_free(surf_workstation_resource->common_public->states.
 430                 failed_action_set);
 431   xbt_swag_free(surf_workstation_resource->common_public->states.done_action_set);
 432
 433   free(surf_workstation_resource->common_public);
 434   free(surf_workstation_resource->common_private);
 435   free(surf_workstation_resource->extension_public);
 436
 437   free(surf_workstation_resource);
 438   surf_workstation_resource = NULL;
 439 }
 440
 441 static void surf_workstation_resource_init_internal(void)
 442 {
 443   s_surf_action_t action;
 444
 445   surf_workstation_resource = xbt_new0(s_surf_workstation_resource_t, 1);
 446
 447   surf_workstation_resource->common_private =
 448       xbt_new0(s_surf_resource_private_t, 1);
 449   surf_workstation_resource->common_public =
 450       xbt_new0(s_surf_resource_public_t, 1);
 451 /*   surf_workstation_resource->extension_private = xbt_new0(s_surf_workstation_resource_extension_private_t,1); */
 452   surf_workstation_resource->extension_public =
 453       xbt_new0(s_surf_workstation_resource_extension_public_t, 1);
 454
 455   surf_workstation_resource->common_public->states.ready_action_set =
 456       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 457   surf_workstation_resource->common_public->states.running_action_set =
 458       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 459   surf_workstation_resource->common_public->states.failed_action_set =
 460       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 461   surf_workstation_resource->common_public->states.done_action_set =
 462       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 463
 464   surf_workstation_resource->common_public->name_service = name_service;
 465   surf_workstation_resource->common_public->get_resource_name =
 466       get_resource_name;
 467   surf_workstation_resource->common_public->action_get_state =
 468       surf_action_get_state;
 469   surf_workstation_resource->common_public->action_get_start_time =
 470       surf_action_get_start_time;
 471   surf_workstation_resource->common_public->action_get_finish_time =
 472       surf_action_get_finish_time;
 473   surf_workstation_resource->common_public->action_free = action_free;
 474   surf_workstation_resource->common_public->action_use = action_use;
 475   surf_workstation_resource->common_public->action_cancel = action_cancel;
 476   surf_workstation_resource->common_public->action_recycle =
 477       action_recycle;
 478   surf_workstation_resource->common_public->action_change_state =
 479       action_change_state;
 480   surf_workstation_resource->common_public->action_set_data = surf_action_set_data;
 481   surf_workstation_resource->common_public->name = "Workstation";
 482
 483   surf_workstation_resource->common_private->resource_used = resource_used;
 484   surf_workstation_resource->common_private->share_resources =
 485       share_resources;
 486   surf_workstation_resource->common_private->update_actions_state =
 487       update_actions_state;
 488   surf_workstation_resource->common_private->update_resource_state =
 489       update_resource_state;
 490   surf_workstation_resource->common_private->finalize = finalize;
 491
 492   surf_workstation_resource->common_public->suspend = action_suspend;
 493   surf_workstation_resource->common_public->resume = action_resume;
 494   surf_workstation_resource->common_public->is_suspended = action_is_suspended;
 495   surf_workstation_resource->common_public->set_max_duration = action_set_max_duration;
 496   surf_workstation_resource->common_public->set_priority = action_set_priority;
 497
 498   surf_workstation_resource->extension_public->execute = execute;
 499   surf_workstation_resource->extension_public->sleep = action_sleep;
 500   surf_workstation_resource->extension_public->get_state = get_state;
 501   surf_workstation_resource->extension_public->get_speed = get_speed;
 502   surf_workstation_resource->extension_public->get_available_speed = get_available_speed;
 503   surf_workstation_resource->extension_public->communicate = communicate;
 504   surf_workstation_resource->extension_public->execute_parallel_task =
 505     execute_parallel_task_bogus;
 506   surf_workstation_resource->extension_public->get_route = get_route;
 507   surf_workstation_resource->extension_public->get_route_size = get_route_size;
 508   surf_workstation_resource->extension_public->get_link_name = get_link_name;
 509   surf_workstation_resource->extension_public->get_link_bandwidth = get_link_bandwidth;
 510   surf_workstation_resource->extension_public->get_link_latency = get_link_latency;
 511   workstation_set = xbt_dict_new();
 512
 513   xbt_assert0(maxmin_system, "surf_init has to be called first!");
 514 }
 515
 516 /********************************************************************/
 517 /* The model used in MSG and presented at CCGrid03                  */
 518 /********************************************************************/
 519 /* @InProceedings{Casanova.CLM_03, */
 520 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 521 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 522 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 523 /*   publisher = {"IEEE Computer Society Press"}, */
 524 /*   month = {may}, */
 525 /*   year = {2003} */
 526 /* } */
 527 void surf_workstation_resource_init_CLM03(const char *filename)
 528 {
 529   surf_workstation_resource_init_internal();
 530   surf_cpu_resource_init_Cas01(filename);
 531   surf_network_resource_init_CM02(filename);
 532   create_workstations();
 533   update_resource_description(surf_workstation_resource_description,
 534                               surf_workstation_resource_description_size,
 535                               "CLM03",
 536                               (surf_resource_t) surf_workstation_resource);
 537   xbt_dynar_push(resource_list, &surf_workstation_resource);
 538 }
 539
 540 void surf_workstation_resource_init_compound(const char *filename)
 541 {
 542
 543   xbt_assert0(surf_cpu_resource,"No CPU resource defined yet!");
 544   xbt_assert0(surf_network_resource,"No network resource defined yet!");
 545   surf_workstation_resource_init_internal();
 546   create_workstations();
 547
 548   update_resource_description(surf_workstation_resource_description,
 549                               surf_workstation_resource_description_size,
 550                               "compound",
 551                               (surf_resource_t) surf_workstation_resource);
 552
 553   xbt_dynar_push(resource_list, &surf_workstation_resource);
 554 }