src/surf/cpu_im.c

   1 /* Copyright (c) 2009, 2010. 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 "surf_private.h"
   8
   9 #undef GENERIC_LMM_ACTION
  10 #undef GENERIC_ACTION
  11 #undef ACTION_GET_CPU
  12 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
  13 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
  14 #define ACTION_GET_CPU(action) ((surf_action_cpu_Cas01_im_t) action)->cpu
  15
  16 typedef struct surf_action_cpu_cas01_im {
  17   s_surf_action_lmm_t generic_lmm_action;
  18   s_xbt_swag_hookup_t cpu_list_hookup;
  19   int index_heap;
  20   void *cpu;
  21 } s_surf_action_cpu_Cas01_im_t, *surf_action_cpu_Cas01_im_t;
  22
  23 typedef struct cpu_Cas01_im {
  24   s_surf_resource_t generic_resource;
  25   s_xbt_swag_hookup_t modified_cpu_hookup;
  26   double power_peak;
  27   double power_scale;
  28   tmgr_trace_event_t power_event;
  29   int core;
  30   e_surf_resource_state_t state_current;
  31   tmgr_trace_event_t state_event;
  32   lmm_constraint_t constraint;
  33   xbt_swag_t action_set;
  34   double last_update;
  35 } s_cpu_Cas01_im_t, *cpu_Cas01_im_t;
  36
  37 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu_im, surf,
  38                                 "Logging specific to the SURF CPU IMPROVED module");
  39
  40
  41 lmm_system_t cpu_im_maxmin_system = NULL;
  42 static xbt_swag_t cpu_im_modified_cpu = NULL;
  43 static xbt_heap_t cpu_im_action_heap = NULL;
  44 extern int sg_maxmin_selective_update;
  45
  46
  47 static xbt_swag_t
  48     cpu_im_running_action_set_that_does_not_need_being_checked = NULL;
  49
  50 static cpu_Cas01_im_t cpu_im_new(char *name, double power_peak,
  51                                  double power_scale,
  52                                  tmgr_trace_t power_trace,
  53                                  int core,
  54                                  e_surf_resource_state_t state_initial,
  55                                  tmgr_trace_t state_trace,
  56                                  xbt_dict_t cpu_properties)
  57 {
  58   cpu_Cas01_im_t cpu = NULL;
  59   s_surf_action_cpu_Cas01_im_t action;
  60   cpu = xbt_new0(s_cpu_Cas01_im_t, 1);
  61
  62   xbt_assert1(!surf_model_resource_by_name(surf_cpu_model, name),
  63               "Host '%s' declared several times in the platform file",
  64               name);
  65   cpu->generic_resource.model = surf_cpu_model;
  66   cpu->generic_resource.name = name;
  67   cpu->generic_resource.properties = cpu_properties;
  68   cpu->power_peak = power_peak;
  69   xbt_assert0(cpu->power_peak > 0, "Power has to be >0");
  70   cpu->power_scale = power_scale;
  71   if (power_trace)
  72     cpu->power_event =
  73         tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
  74   cpu->core = core;
  75   xbt_assert1(core>0,"Invalid number of cores %d",core);
  76
  77   cpu->state_current = state_initial;
  78   if (state_trace)
  79     cpu->state_event =
  80         tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
  81
  82   cpu->constraint =
  83       lmm_constraint_new(cpu_im_maxmin_system, cpu,
  84                          cpu->core * cpu->power_scale * cpu->power_peak);
  85
  86   xbt_dict_set(surf_model_resource_set(surf_cpu_model), name, cpu,
  87                surf_resource_free);
  88   cpu->action_set = xbt_swag_new(xbt_swag_offset(action, cpu_list_hookup));
  89
  90   return cpu;
  91 }
  92
  93
  94 static void parse_cpu_im_init(void)
  95 {
  96   double power_peak = 0.0;
  97   double power_scale = 0.0;
  98   int core = 0;
  99   tmgr_trace_t power_trace = NULL;
 100   e_surf_resource_state_t state_initial = SURF_RESOURCE_OFF;
 101   tmgr_trace_t state_trace = NULL;
 102
 103   power_peak = get_cpu_power(A_surfxml_host_power);
 104   surf_parse_get_double(&power_scale, A_surfxml_host_availability);
 105   power_trace = tmgr_trace_new(A_surfxml_host_availability_file);
 106   surf_parse_get_int(&core, A_surfxml_host_core);
 107
 108   xbt_assert0((A_surfxml_host_state == A_surfxml_host_state_ON) ||
 109               (A_surfxml_host_state == A_surfxml_host_state_OFF),
 110               "Invalid state");
 111   if (A_surfxml_host_state == A_surfxml_host_state_ON)
 112     state_initial = SURF_RESOURCE_ON;
 113   if (A_surfxml_host_state == A_surfxml_host_state_OFF)
 114     state_initial = SURF_RESOURCE_OFF;
 115   state_trace = tmgr_trace_new(A_surfxml_host_state_file);
 116
 117   current_property_set = xbt_dict_new();
 118   cpu_im_new(xbt_strdup(A_surfxml_host_id), power_peak, power_scale,
 119              power_trace, core, state_initial, state_trace,
 120              current_property_set);
 121
 122 }
 123
 124 static void cpu_im_add_traces_cpu(void)
 125 {
 126   xbt_dict_cursor_t cursor = NULL;
 127   char *trace_name, *elm;
 128   static int called = 0;
 129   if (called)
 130     return;
 131   called = 1;
 132
 133   /* connect all traces relative to hosts */
 134   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 135     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 136     cpu_Cas01_im_t host = surf_model_resource_by_name(surf_cpu_model, elm);
 137
 138     xbt_assert1(host, "Host %s undefined", elm);
 139     xbt_assert1(trace, "Trace %s undefined", trace_name);
 140
 141     host->state_event =
 142         tmgr_history_add_trace(history, trace, 0.0, 0, host);
 143   }
 144
 145   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 146     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 147     cpu_Cas01_im_t host = surf_model_resource_by_name(surf_cpu_model, elm);
 148
 149     xbt_assert1(host, "Host %s undefined", elm);
 150     xbt_assert1(trace, "Trace %s undefined", trace_name);
 151
 152     host->power_event =
 153         tmgr_history_add_trace(history, trace, 0.0, 0, host);
 154   }
 155 }
 156
 157 static void cpu_im_define_callbacks(const char *file)
 158 {
 159   surfxml_add_callback(STag_surfxml_host_cb_list, parse_cpu_im_init);
 160   surfxml_add_callback(ETag_surfxml_platform_cb_list,
 161                        &cpu_im_add_traces_cpu);
 162 }
 163
 164 static int cpu_im_resource_used(void *resource_id)
 165 {
 166   return lmm_constraint_used(cpu_im_maxmin_system,
 167                              ((cpu_Cas01_im_t) resource_id)->constraint);
 168 }
 169
 170 static int cpu_im_action_unref(surf_action_t action)
 171 {
 172   action->refcount--;
 173   if (!action->refcount) {
 174     xbt_swag_remove(action, action->state_set);
 175     if (((surf_action_lmm_t) action)->variable)
 176       lmm_variable_free(cpu_im_maxmin_system,
 177                         ((surf_action_lmm_t) action)->variable);
 178     /* remove from heap */
 179     xbt_heap_remove(cpu_im_action_heap,
 180                     ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 181     xbt_swag_remove(action,
 182                     ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
 183     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 184 #ifdef HAVE_TRACING
 185     if (action->category)
 186       xbt_free(action->category);
 187 #endif
 188     surf_action_free(&action);
 189     return 1;
 190   }
 191   return 0;
 192 }
 193
 194 static void cpu_im_action_cancel(surf_action_t action)
 195 {
 196   surf_action_state_set(action, SURF_ACTION_FAILED);
 197   xbt_heap_remove(cpu_im_action_heap,
 198                   ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 199   xbt_swag_remove(action,
 200                   ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
 201   return;
 202 }
 203
 204 static void cpu_im_cpu_action_state_set(surf_action_t action,
 205                                         e_surf_action_state_t state)
 206 {
 207 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 208 /*     if(((surf_action_lmm_t)action)->variable) { */
 209 /*       lmm_variable_disable(cpu_im_maxmin_system, ((surf_action_lmm_t)action)->variable); */
 210 /*       ((surf_action_lmm_t)action)->variable = NULL; */
 211 /*     } */
 212
 213   surf_action_state_set(action, state);
 214   return;
 215 }
 216
 217 static void cpu_im_update_remains(cpu_Cas01_im_t cpu, double now)
 218 {
 219   surf_action_cpu_Cas01_im_t action;
 220
 221   if (cpu->last_update >= now)
 222     return;
 223   xbt_swag_foreach(action, cpu->action_set) {
 224     if (GENERIC_ACTION(action).state_set !=
 225         surf_cpu_model->states.running_action_set)
 226       continue;
 227
 228     /* bogus priority, skip it */
 229     if (GENERIC_ACTION(action).priority <= 0)
 230       continue;
 231
 232     if (GENERIC_ACTION(action).remains > 0) {
 233       double_update(&(GENERIC_ACTION(action).remains),
 234                     lmm_variable_getvalue(GENERIC_LMM_ACTION
 235                                           (action).variable) * (now -
 236                                                                 cpu->last_update));
 237 #ifdef HAVE_TRACING
 238       TRACE_surf_host_set_utilization(cpu->generic_resource.name,
 239                                       action->
 240                                       generic_lmm_action.generic_action.
 241                                       data, (surf_action_t) action,
 242                                       lmm_variable_getvalue
 243                                       (GENERIC_LMM_ACTION
 244                                        (action).variable),
 245                                       cpu->last_update,
 246                                       now - cpu->last_update);
 247 #endif
 248       DEBUG2("Update action(%p) remains %lf", action,
 249              GENERIC_ACTION(action).remains);
 250     }
 251   }
 252   cpu->last_update = now;
 253 }
 254
 255 static double cpu_im_share_resources(double now)
 256 {
 257   surf_action_cpu_Cas01_im_t action;
 258   double min;
 259   double value;
 260   cpu_Cas01_im_t cpu, cpu_next;
 261
 262   xbt_swag_foreach(cpu, cpu_im_modified_cpu)
 263       cpu_im_update_remains(cpu, now);
 264
 265   lmm_solve(cpu_im_maxmin_system);
 266
 267   xbt_swag_foreach_safe(cpu, cpu_next, cpu_im_modified_cpu) {
 268     xbt_swag_foreach(action, cpu->action_set) {
 269       if (GENERIC_ACTION(action).state_set !=
 270           surf_cpu_model->states.running_action_set)
 271         continue;
 272
 273       /* bogus priority, skip it */
 274       if (GENERIC_ACTION(action).priority <= 0)
 275         continue;
 276
 277       min = -1;
 278       value = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 279       if (value > 0) {
 280         if (GENERIC_ACTION(action).remains > 0) {
 281           value = GENERIC_ACTION(action).remains / value;
 282           min = now + value;
 283         } else {
 284           value = 0.0;
 285           min = now;
 286         }
 287       }
 288
 289       if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
 290           && (min == -1
 291               || GENERIC_ACTION(action).start +
 292               GENERIC_ACTION(action).max_duration < min))
 293         min =
 294             GENERIC_ACTION(action).start +
 295             GENERIC_ACTION(action).max_duration;
 296
 297       DEBUG4("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
 298              GENERIC_ACTION(action).start, now + value,
 299              GENERIC_ACTION(action).max_duration);
 300
 301       if (action->index_heap >= 0) {
 302         surf_action_cpu_Cas01_im_t heap_act =
 303             xbt_heap_remove(cpu_im_action_heap, action->index_heap);
 304         if (heap_act != action)
 305           DIE_IMPOSSIBLE;
 306       }
 307       if (min != -1) {
 308         xbt_heap_push(cpu_im_action_heap, action, min);
 309         DEBUG2("Insert at heap action(%p) min %lf", action, min);
 310       }
 311     }
 312     xbt_swag_remove(cpu, cpu_im_modified_cpu);
 313   }
 314   return xbt_heap_size(cpu_im_action_heap) >
 315       0 ? xbt_heap_maxkey(cpu_im_action_heap) - now : -1;
 316 }
 317
 318 static void cpu_im_update_actions_state(double now, double delta)
 319 {
 320   surf_action_cpu_Cas01_im_t action;
 321
 322   while ((xbt_heap_size(cpu_im_action_heap) > 0)
 323          && (double_equals(xbt_heap_maxkey(cpu_im_action_heap), now))) {
 324     action = xbt_heap_pop(cpu_im_action_heap);
 325     DEBUG1("Action %p: finish", action);
 326     GENERIC_ACTION(action).finish = surf_get_clock();
 327     /* set the remains to 0 due to precision problems when updating the remaining amount */
 328 #ifdef HAVE_TRACING
 329     {
 330       cpu_Cas01_im_t cpu = ((cpu_Cas01_im_t)(action->cpu));
 331       TRACE_surf_host_set_utilization(cpu->generic_resource.name,
 332           action->generic_lmm_action.generic_action.data,
 333           (surf_action_t) action,
 334           lmm_variable_getvalue (GENERIC_LMM_ACTION(action).variable),
 335           cpu->last_update,
 336           now - cpu->last_update);
 337     }
 338 #endif
 339     GENERIC_ACTION(action).remains = 0;
 340     cpu_im_cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 341     cpu_im_update_remains(action->cpu, surf_get_clock());
 342   }
 343 #ifdef HAVE_TRACING
 344   {
 345     //defining the last timestamp that we can safely dump to trace file
 346     //without losing the event ascending order (considering all CPU's)
 347     cpu_Cas01_im_t cpu;
 348     xbt_dict_cursor_t cursor;
 349     char *key;
 350     double smaller = -1;
 351     xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, key, cpu){
 352       if (smaller < 0){
 353         smaller = cpu->last_update;
 354         continue;
 355       }
 356       if (cpu->last_update < smaller){
 357         smaller = cpu->last_update;
 358       }
 359     }
 360     if (smaller > 0) {
 361       TRACE_last_timestamp_to_dump = smaller;
 362     }
 363   }
 364 #endif
 365   return;
 366 }
 367
 368 static void cpu_im_update_resource_state(void *id,
 369                                          tmgr_trace_event_t event_type,
 370                                          double value, double date)
 371 {
 372   cpu_Cas01_im_t cpu = id;
 373   lmm_variable_t var = NULL;
 374   lmm_element_t elem = NULL;
 375
 376   if (event_type == cpu->power_event) {
 377     cpu->power_scale = value;
 378     lmm_update_constraint_bound(cpu_im_maxmin_system, cpu->constraint,
 379                                 cpu->core * cpu->power_scale * cpu->power_peak);
 380 #ifdef HAVE_TRACING
 381     TRACE_surf_host_set_power(date, cpu->generic_resource.name,
 382                               cpu->core * cpu->power_scale * cpu->power_peak);
 383 #endif
 384     while ((var = lmm_get_var_from_cnst
 385             (cpu_im_maxmin_system, cpu->constraint, &elem))) {
 386         surf_action_cpu_Cas01_im_t action = lmm_variable_id(var);
 387         lmm_update_variable_bound(cpu_im_maxmin_system, action->generic_lmm_action.variable,
 388                                   cpu->power_scale * cpu->power_peak);
 389     }
 390     xbt_swag_insert(cpu, cpu_im_modified_cpu);
 391     if (tmgr_trace_event_free(event_type))
 392       cpu->power_event = NULL;
 393   } else if (event_type == cpu->state_event) {
 394     if (value > 0)
 395       cpu->state_current = SURF_RESOURCE_ON;
 396     else {
 397       lmm_constraint_t cnst = cpu->constraint;
 398       lmm_variable_t var = NULL;
 399       lmm_element_t elem = NULL;
 400
 401       cpu->state_current = SURF_RESOURCE_OFF;
 402
 403       while ((var =
 404               lmm_get_var_from_cnst(cpu_im_maxmin_system, cnst, &elem))) {
 405         surf_action_t action = lmm_variable_id(var);
 406
 407         if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
 408             surf_action_state_get(action) == SURF_ACTION_READY ||
 409             surf_action_state_get(action) ==
 410             SURF_ACTION_NOT_IN_THE_SYSTEM) {
 411           action->finish = date;
 412           cpu_im_cpu_action_state_set(action, SURF_ACTION_FAILED);
 413         }
 414       }
 415     }
 416     if (tmgr_trace_event_free(event_type))
 417       cpu->state_event = NULL;
 418   } else {
 419     CRITICAL0("Unknown event ! \n");
 420     xbt_abort();
 421   }
 422
 423   return;
 424 }
 425
 426 static surf_action_t cpu_im_execute(void *cpu, double size)
 427 {
 428   surf_action_cpu_Cas01_im_t action = NULL;
 429   cpu_Cas01_im_t CPU = cpu;
 430
 431   XBT_IN2("(%s,%g)", surf_resource_name(CPU), size);
 432   action =
 433       surf_action_new(sizeof(s_surf_action_cpu_Cas01_im_t), size,
 434                       surf_cpu_model,
 435                       CPU->state_current != SURF_RESOURCE_ON);
 436
 437   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 438                                                    calloc but it seems to help valgrind... */
 439
 440   GENERIC_LMM_ACTION(action).variable =
 441       lmm_variable_new(cpu_im_maxmin_system, action,
 442                        GENERIC_ACTION(action).priority, CPU->power_scale * CPU->power_peak, 1);
 443   action->index_heap = -1;
 444   action->cpu = CPU;
 445   xbt_swag_insert(CPU, cpu_im_modified_cpu);
 446   xbt_swag_insert(action, CPU->action_set);
 447   lmm_expand(cpu_im_maxmin_system, CPU->constraint,
 448              GENERIC_LMM_ACTION(action).variable, 1.0);
 449   XBT_OUT;
 450   return (surf_action_t) action;
 451 }
 452
 453 static surf_action_t cpu_im_action_sleep(void *cpu, double duration)
 454 {
 455   surf_action_cpu_Cas01_im_t action = NULL;
 456
 457   if (duration > 0)
 458     duration = MAX(duration, MAXMIN_PRECISION);
 459
 460   XBT_IN2("(%s,%g)", surf_resource_name(cpu), duration);
 461   action = (surf_action_cpu_Cas01_im_t) cpu_im_execute(cpu, 1.0);
 462   GENERIC_ACTION(action).max_duration = duration;
 463   GENERIC_LMM_ACTION(action).suspended = 2;
 464   if (duration == NO_MAX_DURATION) {
 465     /* Move to the *end* of the corresponding action set. This convention
 466        is used to speed up update_resource_state  */
 467     xbt_swag_remove(action, ((surf_action_t) action)->state_set);
 468     ((surf_action_t) action)->state_set =
 469         cpu_im_running_action_set_that_does_not_need_being_checked;
 470     xbt_swag_insert(action, ((surf_action_t) action)->state_set);
 471   }
 472
 473   lmm_update_variable_weight(cpu_im_maxmin_system,
 474                              GENERIC_LMM_ACTION(action).variable, 0.0);
 475   xbt_swag_insert(cpu, cpu_im_modified_cpu);
 476   XBT_OUT;
 477   return (surf_action_t) action;
 478 }
 479
 480 static void cpu_im_action_suspend(surf_action_t action)
 481 {
 482   XBT_IN1("(%p)", action);
 483   if (((surf_action_lmm_t) action)->suspended != 2) {
 484     lmm_update_variable_weight(cpu_im_maxmin_system,
 485                                ((surf_action_lmm_t) action)->variable,
 486                                0.0);
 487     ((surf_action_lmm_t) action)->suspended = 1;
 488     xbt_heap_remove(cpu_im_action_heap,
 489                     ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 490     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 491   }
 492   XBT_OUT;
 493 }
 494
 495 static void cpu_im_action_resume(surf_action_t action)
 496 {
 497
 498   XBT_IN1("(%p)", action);
 499   if (((surf_action_lmm_t) action)->suspended != 2) {
 500     lmm_update_variable_weight(cpu_im_maxmin_system,
 501                                ((surf_action_lmm_t) action)->variable,
 502                                action->priority);
 503     ((surf_action_lmm_t) action)->suspended = 0;
 504     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 505   }
 506   XBT_OUT;
 507 }
 508
 509 static int cpu_im_action_is_suspended(surf_action_t action)
 510 {
 511   return (((surf_action_lmm_t) action)->suspended == 1);
 512 }
 513
 514 static void cpu_im_action_set_max_duration(surf_action_t action,
 515                                            double duration)
 516 {
 517   XBT_IN2("(%p,%g)", action, duration);
 518
 519   action->max_duration = duration;
 520   /* insert cpu in modified_cpu set to notice the max duration change */
 521   xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 522   XBT_OUT;
 523 }
 524
 525 static void cpu_im_action_set_priority(surf_action_t action,
 526                                        double priority)
 527 {
 528   XBT_IN2("(%p,%g)", action, priority);
 529   action->priority = priority;
 530   lmm_update_variable_weight(cpu_im_maxmin_system,
 531                              ((surf_action_lmm_t) action)->variable,
 532                              priority);
 533
 534   xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 535   XBT_OUT;
 536 }
 537
 538 #ifdef HAVE_TRACING
 539 static void cpu_im_action_set_category(surf_action_t action,
 540                                        const char *category)
 541 {
 542   XBT_IN2("(%p,%s)", action, category);
 543   action->category = xbt_strdup (category);
 544   XBT_OUT;
 545 }
 546 #endif
 547
 548 static double cpu_im_action_get_remains(surf_action_t action)
 549 {
 550   XBT_IN1("(%p)", action);
 551   /* update remains before return it */
 552   cpu_im_update_remains(ACTION_GET_CPU(action), surf_get_clock());
 553   return action->remains;
 554   XBT_OUT;
 555 }
 556
 557 static e_surf_resource_state_t cpu_im_get_state(void *cpu)
 558 {
 559   return ((cpu_Cas01_im_t) cpu)->state_current;
 560 }
 561
 562 static double cpu_im_get_speed(void *cpu, double load)
 563 {
 564   return load * (((cpu_Cas01_im_t) cpu)->power_peak);
 565 }
 566
 567 static double cpu_im_get_available_speed(void *cpu)
 568 {
 569   /* number between 0 and 1 */
 570   return ((cpu_Cas01_im_t) cpu)->power_scale;
 571 }
 572
 573 static void cpu_im_action_update_index_heap(void *action, int i)
 574 {
 575   ((surf_action_cpu_Cas01_im_t) action)->index_heap = i;
 576 }
 577
 578 static void cpu_im_create_resource(char *name, double power_peak,
 579                                    double power_scale,
 580                                    tmgr_trace_t power_trace,
 581                                    int core,
 582                                    e_surf_resource_state_t state_initial,
 583                                    tmgr_trace_t state_trace,
 584                                    xbt_dict_t cpu_properties)
 585 {
 586   cpu_im_new(name, power_peak, power_scale, power_trace, core,
 587              state_initial, state_trace, cpu_properties);
 588 }
 589
 590 static void cpu_im_finalize(void)
 591 {
 592   void *cpu;
 593   xbt_dict_cursor_t cursor;
 594   char *key;
 595   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, key,
 596                    cpu) {
 597     cpu_Cas01_im_t CPU = cpu;
 598     xbt_swag_free(CPU->action_set);
 599   }
 600
 601   lmm_system_free(cpu_im_maxmin_system);
 602   cpu_im_maxmin_system = NULL;
 603
 604   surf_model_exit(surf_cpu_model);
 605   surf_cpu_model = NULL;
 606
 607   xbt_swag_free
 608       (cpu_im_running_action_set_that_does_not_need_being_checked);
 609   cpu_im_running_action_set_that_does_not_need_being_checked = NULL;
 610   xbt_heap_free(cpu_im_action_heap);
 611   xbt_swag_free(cpu_im_modified_cpu);
 612 }
 613
 614 static void surf_cpu_im_model_init_internal(void)
 615 {
 616   s_surf_action_t action;
 617   s_cpu_Cas01_im_t cpu;
 618
 619   surf_cpu_model = surf_model_init();
 620
 621   cpu_im_running_action_set_that_does_not_need_being_checked =
 622       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 623
 624   surf_cpu_model->name = "CPU_IM";
 625
 626   surf_cpu_model->action_unref = cpu_im_action_unref;
 627   surf_cpu_model->action_cancel = cpu_im_action_cancel;
 628   surf_cpu_model->action_state_set = cpu_im_cpu_action_state_set;
 629
 630   surf_cpu_model->model_private->resource_used = cpu_im_resource_used;
 631   surf_cpu_model->model_private->share_resources = cpu_im_share_resources;
 632   surf_cpu_model->model_private->update_actions_state =
 633       cpu_im_update_actions_state;
 634   surf_cpu_model->model_private->update_resource_state =
 635       cpu_im_update_resource_state;
 636   surf_cpu_model->model_private->finalize = cpu_im_finalize;
 637
 638   surf_cpu_model->suspend = cpu_im_action_suspend;
 639   surf_cpu_model->resume = cpu_im_action_resume;
 640   surf_cpu_model->is_suspended = cpu_im_action_is_suspended;
 641   surf_cpu_model->set_max_duration = cpu_im_action_set_max_duration;
 642   surf_cpu_model->set_priority = cpu_im_action_set_priority;
 643 #ifdef HAVE_TRACING
 644   surf_cpu_model->set_category = cpu_im_action_set_category;
 645 #endif
 646   surf_cpu_model->get_remains = cpu_im_action_get_remains;
 647
 648   surf_cpu_model->extension.cpu.execute = cpu_im_execute;
 649   surf_cpu_model->extension.cpu.sleep = cpu_im_action_sleep;
 650
 651   surf_cpu_model->extension.cpu.get_state = cpu_im_get_state;
 652   surf_cpu_model->extension.cpu.get_speed = cpu_im_get_speed;
 653   surf_cpu_model->extension.cpu.get_available_speed =
 654       cpu_im_get_available_speed;
 655   surf_cpu_model->extension.cpu.create_resource = cpu_im_create_resource;
 656   surf_cpu_model->extension.cpu.add_traces = cpu_im_add_traces_cpu;
 657
 658   if (!cpu_im_maxmin_system) {
 659     sg_maxmin_selective_update = 1;
 660     cpu_im_maxmin_system = lmm_system_new();
 661   }
 662   cpu_im_action_heap = xbt_heap_new(8, NULL);
 663   xbt_heap_set_update_callback(cpu_im_action_heap,
 664                                cpu_im_action_update_index_heap);
 665   cpu_im_modified_cpu =
 666       xbt_swag_new(xbt_swag_offset(cpu, modified_cpu_hookup));
 667 }
 668
 669 /*********************************************************************/
 670 /* Basic sharing model for CPU: that is where all this started... ;) */
 671 /*********************************************************************/
 672 /* @InProceedings{casanova01simgrid, */
 673 /*   author =       "H. Casanova", */
 674 /*   booktitle =    "Proceedings of the IEEE Symposium on Cluster Computing */
 675 /*                  and the Grid (CCGrid'01)", */
 676 /*   publisher =    "IEEE Computer Society", */
 677 /*   title =        "Simgrid: {A} Toolkit for the Simulation of Application */
 678 /*                  Scheduling", */
 679 /*   year =         "2001", */
 680 /*   month =        may, */
 681 /*   note =         "Available at */
 682 /*                  \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
 683 /* } */
 684 void surf_cpu_model_init_Cas01_im(const char *filename)
 685 {
 686   if (surf_cpu_model)
 687     return;
 688   surf_cpu_im_model_init_internal();
 689   cpu_im_define_callbacks(filename);
 690   xbt_dynar_push(model_list, &surf_cpu_model);
 691 }