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
 160   surf_parse_reset_parser();
 161   surfxml_add_callback(STag_surfxml_host_cb_list, parse_cpu_im_init);
 162   surfxml_add_callback(ETag_surfxml_platform_cb_list,
 163                        &cpu_im_add_traces_cpu);
 164 }
 165
 166 static int cpu_im_resource_used(void *resource_id)
 167 {
 168   return lmm_constraint_used(cpu_im_maxmin_system,
 169                              ((cpu_Cas01_im_t) resource_id)->constraint);
 170 }
 171
 172 static int cpu_im_action_unref(surf_action_t action)
 173 {
 174   action->refcount--;
 175   if (!action->refcount) {
 176     xbt_swag_remove(action, action->state_set);
 177     if (((surf_action_lmm_t) action)->variable)
 178       lmm_variable_free(cpu_im_maxmin_system,
 179                         ((surf_action_lmm_t) action)->variable);
 180     /* remove from heap */
 181     xbt_heap_remove(cpu_im_action_heap,
 182                     ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 183     xbt_swag_remove(action,
 184                     ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
 185     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 186 #ifdef HAVE_TRACING
 187     if (action->category)
 188       xbt_free(action->category);
 189 #endif
 190     free(action);
 191     return 1;
 192   }
 193   return 0;
 194 }
 195
 196 static void cpu_im_action_cancel(surf_action_t action)
 197 {
 198   surf_action_state_set(action, SURF_ACTION_FAILED);
 199   xbt_heap_remove(cpu_im_action_heap,
 200                   ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 201   xbt_swag_remove(action,
 202                   ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
 203   return;
 204 }
 205
 206 static void cpu_im_cpu_action_state_set(surf_action_t action,
 207                                         e_surf_action_state_t state)
 208 {
 209 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 210 /*     if(((surf_action_lmm_t)action)->variable) { */
 211 /*       lmm_variable_disable(cpu_im_maxmin_system, ((surf_action_lmm_t)action)->variable); */
 212 /*       ((surf_action_lmm_t)action)->variable = NULL; */
 213 /*     } */
 214
 215   surf_action_state_set(action, state);
 216   return;
 217 }
 218
 219 static void cpu_im_update_remains(cpu_Cas01_im_t cpu, double now)
 220 {
 221   surf_action_cpu_Cas01_im_t action;
 222
 223   if (cpu->last_update >= now)
 224     return;
 225   xbt_swag_foreach(action, cpu->action_set) {
 226     if (GENERIC_ACTION(action).state_set !=
 227         surf_cpu_model->states.running_action_set)
 228       continue;
 229
 230     /* bogus priority, skip it */
 231     if (GENERIC_ACTION(action).priority <= 0)
 232       continue;
 233
 234     if (GENERIC_ACTION(action).remains > 0) {
 235       double_update(&(GENERIC_ACTION(action).remains),
 236                     lmm_variable_getvalue(GENERIC_LMM_ACTION
 237                                           (action).variable) * (now -
 238                                                                 cpu->last_update));
 239 #ifdef HAVE_TRACING
 240       TRACE_surf_host_set_utilization(cpu->generic_resource.name,
 241                                       action->
 242                                       generic_lmm_action.generic_action.
 243                                       data, (surf_action_t) action,
 244                                       lmm_variable_getvalue
 245                                       (GENERIC_LMM_ACTION
 246                                        (action).variable),
 247                                       cpu->last_update,
 248                                       now - cpu->last_update);
 249 #endif
 250       DEBUG2("Update action(%p) remains %lf", action,
 251              GENERIC_ACTION(action).remains);
 252     }
 253   }
 254   cpu->last_update = now;
 255 }
 256
 257 static double cpu_im_share_resources(double now)
 258 {
 259   surf_action_cpu_Cas01_im_t action;
 260   double min;
 261   double value;
 262   cpu_Cas01_im_t cpu, cpu_next;
 263
 264   xbt_swag_foreach(cpu, cpu_im_modified_cpu)
 265       cpu_im_update_remains(cpu, now);
 266
 267   lmm_solve(cpu_im_maxmin_system);
 268
 269   xbt_swag_foreach_safe(cpu, cpu_next, cpu_im_modified_cpu) {
 270     xbt_swag_foreach(action, cpu->action_set) {
 271       if (GENERIC_ACTION(action).state_set !=
 272           surf_cpu_model->states.running_action_set)
 273         continue;
 274
 275       /* bogus priority, skip it */
 276       if (GENERIC_ACTION(action).priority <= 0)
 277         continue;
 278
 279       min = -1;
 280       value = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 281       if (value > 0) {
 282         if (GENERIC_ACTION(action).remains > 0) {
 283           value = GENERIC_ACTION(action).remains / value;
 284           min = now + value;
 285         } else {
 286           value = 0.0;
 287           min = now;
 288         }
 289       }
 290
 291       if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
 292           && (min == -1
 293               || GENERIC_ACTION(action).start +
 294               GENERIC_ACTION(action).max_duration < min))
 295         min =
 296             GENERIC_ACTION(action).start +
 297             GENERIC_ACTION(action).max_duration;
 298
 299       DEBUG4("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
 300              GENERIC_ACTION(action).start, now + value,
 301              GENERIC_ACTION(action).max_duration);
 302
 303       if (action->index_heap >= 0) {
 304         surf_action_cpu_Cas01_im_t heap_act =
 305             xbt_heap_remove(cpu_im_action_heap, action->index_heap);
 306         if (heap_act != action)
 307           DIE_IMPOSSIBLE;
 308       }
 309       if (min != -1) {
 310         xbt_heap_push(cpu_im_action_heap, action, min);
 311         DEBUG2("Insert at heap action(%p) min %lf", action, min);
 312       }
 313     }
 314     xbt_swag_remove(cpu, cpu_im_modified_cpu);
 315   }
 316   return xbt_heap_size(cpu_im_action_heap) >
 317       0 ? xbt_heap_maxkey(cpu_im_action_heap) - now : -1;
 318 }
 319
 320 static void cpu_im_update_actions_state(double now, double delta)
 321 {
 322   surf_action_cpu_Cas01_im_t action;
 323
 324   while ((xbt_heap_size(cpu_im_action_heap) > 0)
 325          && (double_equals(xbt_heap_maxkey(cpu_im_action_heap), now))) {
 326     action = xbt_heap_pop(cpu_im_action_heap);
 327     DEBUG1("Action %p: finish", action);
 328     GENERIC_ACTION(action).finish = surf_get_clock();
 329     /* set the remains to 0 due to precision problems when updating the remaining amount */
 330 #ifdef HAVE_TRACING
 331     {
 332       cpu_Cas01_im_t cpu = ((cpu_Cas01_im_t)(action->cpu));
 333       TRACE_surf_host_set_utilization(cpu->generic_resource.name,
 334           action->generic_lmm_action.generic_action.data,
 335           (surf_action_t) action,
 336           lmm_variable_getvalue (GENERIC_LMM_ACTION(action).variable),
 337           cpu->last_update,
 338           now - cpu->last_update);
 339     }
 340 #endif
 341     GENERIC_ACTION(action).remains = 0;
 342     cpu_im_cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 343     cpu_im_update_remains(action->cpu, surf_get_clock());
 344   }
 345 #ifdef HAVE_TRACING
 346   {
 347     //defining the last timestamp that we can safely dump to trace file
 348     //without losing the event ascending order (considering all CPU's)
 349     cpu_Cas01_im_t cpu;
 350     xbt_dict_cursor_t cursor;
 351     char *key;
 352     double smaller = -1;
 353     xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, key, cpu){
 354       if (smaller < 0){
 355         smaller = cpu->last_update;
 356         continue;
 357       }
 358       if (cpu->last_update < smaller){
 359         smaller = cpu->last_update;
 360       }
 361     }
 362     if (smaller > 0) {
 363       TRACE_last_timestamp_to_dump = smaller;
 364     }
 365   }
 366 #endif
 367   return;
 368 }
 369
 370 static void cpu_im_update_resource_state(void *id,
 371                                          tmgr_trace_event_t event_type,
 372                                          double value, double date)
 373 {
 374   cpu_Cas01_im_t cpu = id;
 375   lmm_variable_t var = NULL;
 376   lmm_element_t elem = NULL;
 377
 378   if (event_type == cpu->power_event) {
 379     cpu->power_scale = value;
 380     lmm_update_constraint_bound(cpu_im_maxmin_system, cpu->constraint,
 381                                 cpu->core * cpu->power_scale * cpu->power_peak);
 382 #ifdef HAVE_TRACING
 383     TRACE_surf_host_set_power(date, cpu->generic_resource.name,
 384                               cpu->core * cpu->power_scale * cpu->power_peak);
 385 #endif
 386     while ((var = lmm_get_var_from_cnst
 387             (cpu_im_maxmin_system, cpu->constraint, &elem))) {
 388         surf_action_cpu_Cas01_im_t action = lmm_variable_id(var);
 389         lmm_update_variable_bound(cpu_im_maxmin_system, action->generic_lmm_action.variable,
 390                                   cpu->power_scale * cpu->power_peak);
 391     }
 392     xbt_swag_insert(cpu, cpu_im_modified_cpu);
 393     if (tmgr_trace_event_free(event_type))
 394       cpu->power_event = NULL;
 395   } else if (event_type == cpu->state_event) {
 396     if (value > 0)
 397       cpu->state_current = SURF_RESOURCE_ON;
 398     else {
 399       lmm_constraint_t cnst = cpu->constraint;
 400       lmm_variable_t var = NULL;
 401       lmm_element_t elem = NULL;
 402
 403       cpu->state_current = SURF_RESOURCE_OFF;
 404
 405       while ((var =
 406               lmm_get_var_from_cnst(cpu_im_maxmin_system, cnst, &elem))) {
 407         surf_action_t action = lmm_variable_id(var);
 408
 409         if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
 410             surf_action_state_get(action) == SURF_ACTION_READY ||
 411             surf_action_state_get(action) ==
 412             SURF_ACTION_NOT_IN_THE_SYSTEM) {
 413           action->finish = date;
 414           cpu_im_cpu_action_state_set(action, SURF_ACTION_FAILED);
 415         }
 416       }
 417     }
 418     if (tmgr_trace_event_free(event_type))
 419       cpu->state_event = NULL;
 420   } else {
 421     CRITICAL0("Unknown event ! \n");
 422     xbt_abort();
 423   }
 424
 425   return;
 426 }
 427
 428 static surf_action_t cpu_im_execute(void *cpu, double size)
 429 {
 430   surf_action_cpu_Cas01_im_t action = NULL;
 431   cpu_Cas01_im_t CPU = cpu;
 432
 433   XBT_IN2("(%s,%g)", surf_resource_name(CPU), size);
 434   action =
 435       surf_action_new(sizeof(s_surf_action_cpu_Cas01_im_t), size,
 436                       surf_cpu_model,
 437                       CPU->state_current != SURF_RESOURCE_ON);
 438
 439   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 440                                                    calloc but it seems to help valgrind... */
 441
 442   GENERIC_LMM_ACTION(action).variable =
 443       lmm_variable_new(cpu_im_maxmin_system, action,
 444                        GENERIC_ACTION(action).priority, CPU->power_scale * CPU->power_peak, 1);
 445   action->index_heap = -1;
 446   action->cpu = CPU;
 447   xbt_swag_insert(CPU, cpu_im_modified_cpu);
 448   xbt_swag_insert(action, CPU->action_set);
 449   lmm_expand(cpu_im_maxmin_system, CPU->constraint,
 450              GENERIC_LMM_ACTION(action).variable, 1.0);
 451   XBT_OUT;
 452   return (surf_action_t) action;
 453 }
 454
 455 static surf_action_t cpu_im_action_sleep(void *cpu, double duration)
 456 {
 457   surf_action_cpu_Cas01_im_t action = NULL;
 458
 459   if (duration > 0)
 460     duration = MAX(duration, MAXMIN_PRECISION);
 461
 462   XBT_IN2("(%s,%g)", surf_resource_name(cpu), duration);
 463   action = (surf_action_cpu_Cas01_im_t) cpu_im_execute(cpu, 1.0);
 464   GENERIC_ACTION(action).max_duration = duration;
 465   GENERIC_LMM_ACTION(action).suspended = 2;
 466   if (duration == NO_MAX_DURATION) {
 467     /* Move to the *end* of the corresponding action set. This convention
 468        is used to speed up update_resource_state  */
 469     xbt_swag_remove(action, ((surf_action_t) action)->state_set);
 470     ((surf_action_t) action)->state_set =
 471         cpu_im_running_action_set_that_does_not_need_being_checked;
 472     xbt_swag_insert(action, ((surf_action_t) action)->state_set);
 473   }
 474
 475   lmm_update_variable_weight(cpu_im_maxmin_system,
 476                              GENERIC_LMM_ACTION(action).variable, 0.0);
 477   xbt_swag_insert(cpu, cpu_im_modified_cpu);
 478   XBT_OUT;
 479   return (surf_action_t) action;
 480 }
 481
 482 static void cpu_im_action_suspend(surf_action_t action)
 483 {
 484   XBT_IN1("(%p)", action);
 485   if (((surf_action_lmm_t) action)->suspended != 2) {
 486     lmm_update_variable_weight(cpu_im_maxmin_system,
 487                                ((surf_action_lmm_t) action)->variable,
 488                                0.0);
 489     ((surf_action_lmm_t) action)->suspended = 1;
 490     xbt_heap_remove(cpu_im_action_heap,
 491                     ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 492     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 493   }
 494   XBT_OUT;
 495 }
 496
 497 static void cpu_im_action_resume(surf_action_t action)
 498 {
 499
 500   XBT_IN1("(%p)", action);
 501   if (((surf_action_lmm_t) action)->suspended != 2) {
 502     lmm_update_variable_weight(cpu_im_maxmin_system,
 503                                ((surf_action_lmm_t) action)->variable,
 504                                action->priority);
 505     ((surf_action_lmm_t) action)->suspended = 0;
 506     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 507   }
 508   XBT_OUT;
 509 }
 510
 511 static int cpu_im_action_is_suspended(surf_action_t action)
 512 {
 513   return (((surf_action_lmm_t) action)->suspended == 1);
 514 }
 515
 516 static void cpu_im_action_set_max_duration(surf_action_t action,
 517                                            double duration)
 518 {
 519   XBT_IN2("(%p,%g)", action, duration);
 520
 521   action->max_duration = duration;
 522   /* insert cpu in modified_cpu set to notice the max duration change */
 523   xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 524   XBT_OUT;
 525 }
 526
 527 static void cpu_im_action_set_priority(surf_action_t action,
 528                                        double priority)
 529 {
 530   XBT_IN2("(%p,%g)", action, priority);
 531   action->priority = priority;
 532   lmm_update_variable_weight(cpu_im_maxmin_system,
 533                              ((surf_action_lmm_t) action)->variable,
 534                              priority);
 535
 536   xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 537   XBT_OUT;
 538 }
 539
 540 #ifdef HAVE_TRACING
 541 static void cpu_im_action_set_category(surf_action_t action,
 542                                        const char *category)
 543 {
 544   XBT_IN2("(%p,%s)", action, category);
 545   action->category = xbt_strdup (category);
 546   XBT_OUT;
 547 }
 548 #endif
 549
 550 static double cpu_im_action_get_remains(surf_action_t action)
 551 {
 552   XBT_IN1("(%p)", action);
 553   /* update remains before return it */
 554   cpu_im_update_remains(ACTION_GET_CPU(action), surf_get_clock());
 555   return action->remains;
 556   XBT_OUT;
 557 }
 558
 559 static e_surf_resource_state_t cpu_im_get_state(void *cpu)
 560 {
 561   return ((cpu_Cas01_im_t) cpu)->state_current;
 562 }
 563
 564 static double cpu_im_get_speed(void *cpu, double load)
 565 {
 566   return load * (((cpu_Cas01_im_t) cpu)->power_peak);
 567 }
 568
 569 static double cpu_im_get_available_speed(void *cpu)
 570 {
 571   /* number between 0 and 1 */
 572   return ((cpu_Cas01_im_t) cpu)->power_scale;
 573 }
 574
 575 static void cpu_im_action_update_index_heap(void *action, int i)
 576 {
 577   ((surf_action_cpu_Cas01_im_t) action)->index_heap = i;
 578 }
 579
 580 static void cpu_im_create_resource(char *name, double power_peak,
 581                                    double power_scale,
 582                                    tmgr_trace_t power_trace,
 583                                    int core,
 584                                    e_surf_resource_state_t state_initial,
 585                                    tmgr_trace_t state_trace,
 586                                    xbt_dict_t cpu_properties)
 587 {
 588   cpu_im_new(name, power_peak, power_scale, power_trace, core,
 589              state_initial, state_trace, cpu_properties);
 590 }
 591
 592 static void cpu_im_finalize(void)
 593 {
 594   void *cpu;
 595   xbt_dict_cursor_t cursor;
 596   char *key;
 597   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, key,
 598                    cpu) {
 599     cpu_Cas01_im_t CPU = cpu;
 600     xbt_swag_free(CPU->action_set);
 601   }
 602
 603   lmm_system_free(cpu_im_maxmin_system);
 604   cpu_im_maxmin_system = NULL;
 605
 606   surf_model_exit(surf_cpu_model);
 607   surf_cpu_model = NULL;
 608
 609   xbt_swag_free
 610       (cpu_im_running_action_set_that_does_not_need_being_checked);
 611   cpu_im_running_action_set_that_does_not_need_being_checked = NULL;
 612   xbt_heap_free(cpu_im_action_heap);
 613   xbt_swag_free(cpu_im_modified_cpu);
 614 }
 615
 616 static void surf_cpu_im_model_init_internal(void)
 617 {
 618   s_surf_action_t action;
 619   s_cpu_Cas01_im_t cpu;
 620
 621   surf_cpu_model = surf_model_init();
 622
 623   cpu_im_running_action_set_that_does_not_need_being_checked =
 624       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 625
 626   surf_cpu_model->name = "CPU_IM";
 627
 628   surf_cpu_model->action_unref = cpu_im_action_unref;
 629   surf_cpu_model->action_cancel = cpu_im_action_cancel;
 630   surf_cpu_model->action_state_set = cpu_im_cpu_action_state_set;
 631
 632   surf_cpu_model->model_private->resource_used = cpu_im_resource_used;
 633   surf_cpu_model->model_private->share_resources = cpu_im_share_resources;
 634   surf_cpu_model->model_private->update_actions_state =
 635       cpu_im_update_actions_state;
 636   surf_cpu_model->model_private->update_resource_state =
 637       cpu_im_update_resource_state;
 638   surf_cpu_model->model_private->finalize = cpu_im_finalize;
 639
 640   surf_cpu_model->suspend = cpu_im_action_suspend;
 641   surf_cpu_model->resume = cpu_im_action_resume;
 642   surf_cpu_model->is_suspended = cpu_im_action_is_suspended;
 643   surf_cpu_model->set_max_duration = cpu_im_action_set_max_duration;
 644   surf_cpu_model->set_priority = cpu_im_action_set_priority;
 645 #ifdef HAVE_TRACING
 646   surf_cpu_model->set_category = cpu_im_action_set_category;
 647 #endif
 648   surf_cpu_model->get_remains = cpu_im_action_get_remains;
 649
 650   surf_cpu_model->extension.cpu.execute = cpu_im_execute;
 651   surf_cpu_model->extension.cpu.sleep = cpu_im_action_sleep;
 652
 653   surf_cpu_model->extension.cpu.get_state = cpu_im_get_state;
 654   surf_cpu_model->extension.cpu.get_speed = cpu_im_get_speed;
 655   surf_cpu_model->extension.cpu.get_available_speed =
 656       cpu_im_get_available_speed;
 657   surf_cpu_model->extension.cpu.create_resource = cpu_im_create_resource;
 658   surf_cpu_model->extension.cpu.add_traces = cpu_im_add_traces_cpu;
 659
 660   if (!cpu_im_maxmin_system) {
 661     sg_maxmin_selective_update = 1;
 662     cpu_im_maxmin_system = lmm_system_new();
 663   }
 664   cpu_im_action_heap = xbt_heap_new(8, NULL);
 665   xbt_heap_set_update_callback(cpu_im_action_heap,
 666                                cpu_im_action_update_index_heap);
 667   cpu_im_modified_cpu =
 668       xbt_swag_new(xbt_swag_offset(cpu, modified_cpu_hookup));
 669 }
 670
 671 /*********************************************************************/
 672 /* Basic sharing model for CPU: that is where all this started... ;) */
 673 /*********************************************************************/
 674 /* @InProceedings{casanova01simgrid, */
 675 /*   author =       "H. Casanova", */
 676 /*   booktitle =    "Proceedings of the IEEE Symposium on Cluster Computing */
 677 /*                  and the Grid (CCGrid'01)", */
 678 /*   publisher =    "IEEE Computer Society", */
 679 /*   title =        "Simgrid: {A} Toolkit for the Simulation of Application */
 680 /*                  Scheduling", */
 681 /*   year =         "2001", */
 682 /*   month =        may, */
 683 /*   note =         "Available at */
 684 /*                  \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
 685 /* } */
 686 void surf_cpu_model_init_Cas01_im(const char *filename)
 687 {
 688   if (surf_cpu_model)
 689     return;
 690   surf_cpu_im_model_init_internal();
 691   cpu_im_define_callbacks(filename);
 692   xbt_dynar_push(model_list, &surf_cpu_model);
 693 }