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_assert(!surf_cpu_resource_by_name(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_assert(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_assert(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_lib_set(host_lib, name, SURF_CPU_LEVEL, cpu);
  87   cpu->action_set = xbt_swag_new(xbt_swag_offset(action, cpu_list_hookup));
  88
  89   return cpu;
  90 }
  91
  92
  93 static void parse_cpu_im_init(void)
  94 {
  95   double power_peak = 0.0;
  96   double power_scale = 0.0;
  97   int core = 0;
  98   tmgr_trace_t power_trace = NULL;
  99   e_surf_resource_state_t state_initial = SURF_RESOURCE_OFF;
 100   tmgr_trace_t state_trace = NULL;
 101
 102   power_peak = get_cpu_power(A_surfxml_host_power);
 103   surf_parse_get_double(&power_scale, A_surfxml_host_availability);
 104   power_trace = tmgr_trace_new(A_surfxml_host_availability_file);
 105   surf_parse_get_int(&core, A_surfxml_host_core);
 106
 107   xbt_assert((A_surfxml_host_state == A_surfxml_host_state_ON) ||
 108               (A_surfxml_host_state == A_surfxml_host_state_OFF),
 109               "Invalid state");
 110   if (A_surfxml_host_state == A_surfxml_host_state_ON)
 111     state_initial = SURF_RESOURCE_ON;
 112   if (A_surfxml_host_state == A_surfxml_host_state_OFF)
 113     state_initial = SURF_RESOURCE_OFF;
 114   state_trace = tmgr_trace_new(A_surfxml_host_state_file);
 115
 116   cpu_im_new(xbt_strdup(A_surfxml_host_id), power_peak, power_scale,
 117              power_trace, core, state_initial, state_trace,
 118              current_property_set);
 119   current_property_set = NULL;
 120
 121 }
 122
 123 static void cpu_im_add_traces_cpu(void)
 124 {
 125   xbt_dict_cursor_t cursor = NULL;
 126   char *trace_name, *elm;
 127   static int called = 0;
 128   if (called)
 129     return;
 130   called = 1;
 131
 132   /* connect all traces relative to hosts */
 133   xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 134     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 135     cpu_Cas01_im_t host = surf_cpu_resource_by_name(elm);
 136
 137     xbt_assert(host, "Host %s undefined", elm);
 138     xbt_assert(trace, "Trace %s undefined", trace_name);
 139
 140     host->state_event =
 141         tmgr_history_add_trace(history, trace, 0.0, 0, host);
 142   }
 143
 144   xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
 145     tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 146     cpu_Cas01_im_t host = surf_cpu_resource_by_name(elm);
 147
 148     xbt_assert(host, "Host %s undefined", elm);
 149     xbt_assert(trace, "Trace %s undefined", trace_name);
 150
 151     host->power_event =
 152         tmgr_history_add_trace(history, trace, 0.0, 0, host);
 153   }
 154 }
 155
 156 static void cpu_im_define_callbacks(const char *file)
 157 {
 158   surfxml_add_callback(ETag_surfxml_host_cb_list, parse_cpu_im_init);
 159   surfxml_add_callback(ETag_surfxml_platform_cb_list,
 160                        &cpu_im_add_traces_cpu);
 161 }
 162
 163 static int cpu_im_resource_used(void *resource_id)
 164 {
 165   return lmm_constraint_used(cpu_im_maxmin_system,
 166                              ((cpu_Cas01_im_t) resource_id)->constraint);
 167 }
 168
 169 static int cpu_im_action_unref(surf_action_t action)
 170 {
 171   action->refcount--;
 172   if (!action->refcount) {
 173     xbt_swag_remove(action, action->state_set);
 174     if (((surf_action_lmm_t) action)->variable)
 175       lmm_variable_free(cpu_im_maxmin_system,
 176                         ((surf_action_lmm_t) action)->variable);
 177     /* remove from heap */
 178     xbt_heap_remove(cpu_im_action_heap,
 179                     ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 180     xbt_swag_remove(action,
 181                     ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
 182     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 183 #ifdef HAVE_TRACING
 184     if (action->category)
 185       xbt_free(action->category);
 186 #endif
 187     surf_action_free(&action);
 188     return 1;
 189   }
 190   return 0;
 191 }
 192
 193 static void cpu_im_action_cancel(surf_action_t action)
 194 {
 195   surf_action_state_set(action, SURF_ACTION_FAILED);
 196   xbt_heap_remove(cpu_im_action_heap,
 197                   ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 198   xbt_swag_remove(action,
 199                   ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
 200   return;
 201 }
 202
 203 static void cpu_im_cpu_action_state_set(surf_action_t action,
 204                                         e_surf_action_state_t state)
 205 {
 206 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 207 /*     if(((surf_action_lmm_t)action)->variable) { */
 208 /*       lmm_variable_disable(cpu_im_maxmin_system, ((surf_action_lmm_t)action)->variable); */
 209 /*       ((surf_action_lmm_t)action)->variable = NULL; */
 210 /*     } */
 211
 212   surf_action_state_set(action, state);
 213   return;
 214 }
 215
 216 static void cpu_im_update_remains(cpu_Cas01_im_t cpu, double now)
 217 {
 218   surf_action_cpu_Cas01_im_t action;
 219
 220   if (cpu->last_update >= now)
 221     return;
 222   xbt_swag_foreach(action, cpu->action_set) {
 223     if (GENERIC_ACTION(action).state_set !=
 224         surf_cpu_model->states.running_action_set)
 225       continue;
 226
 227     /* bogus priority, skip it */
 228     if (GENERIC_ACTION(action).priority <= 0)
 229       continue;
 230
 231     if (GENERIC_ACTION(action).remains > 0) {
 232       double_update(&(GENERIC_ACTION(action).remains),
 233                     lmm_variable_getvalue(GENERIC_LMM_ACTION
 234                                           (action).variable) * (now -
 235                                                                 cpu->last_update));
 236 #ifdef HAVE_TRACING
 237       TRACE_surf_host_set_utilization(cpu->generic_resource.name,
 238                                       action->
 239                                       generic_lmm_action.generic_action.
 240                                       data, (surf_action_t) action,
 241                                       lmm_variable_getvalue
 242                                       (GENERIC_LMM_ACTION
 243                                        (action).variable),
 244                                       cpu->last_update,
 245                                       now - cpu->last_update);
 246 #endif
 247       XBT_DEBUG("Update action(%p) remains %lf", action,
 248              GENERIC_ACTION(action).remains);
 249     }
 250   }
 251   cpu->last_update = now;
 252 }
 253
 254 static double cpu_im_share_resources(double now)
 255 {
 256   surf_action_cpu_Cas01_im_t action;
 257   double min;
 258   double value;
 259   cpu_Cas01_im_t cpu, cpu_next;
 260
 261   xbt_swag_foreach(cpu, cpu_im_modified_cpu)
 262       cpu_im_update_remains(cpu, now);
 263
 264   lmm_solve(cpu_im_maxmin_system);
 265
 266   xbt_swag_foreach_safe(cpu, cpu_next, cpu_im_modified_cpu) {
 267     xbt_swag_foreach(action, cpu->action_set) {
 268       if (GENERIC_ACTION(action).state_set !=
 269           surf_cpu_model->states.running_action_set)
 270         continue;
 271
 272       /* bogus priority, skip it */
 273       if (GENERIC_ACTION(action).priority <= 0)
 274         continue;
 275
 276       min = -1;
 277       value = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 278       if (value > 0) {
 279         if (GENERIC_ACTION(action).remains > 0) {
 280           value = GENERIC_ACTION(action).remains / value;
 281           min = now + value;
 282         } else {
 283           value = 0.0;
 284           min = now;
 285         }
 286       }
 287
 288       if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
 289           && (min == -1
 290               || GENERIC_ACTION(action).start +
 291               GENERIC_ACTION(action).max_duration < min))
 292         min =
 293             GENERIC_ACTION(action).start +
 294             GENERIC_ACTION(action).max_duration;
 295
 296       XBT_DEBUG("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
 297              GENERIC_ACTION(action).start, now + value,
 298              GENERIC_ACTION(action).max_duration);
 299
 300       if (action->index_heap >= 0) {
 301         surf_action_cpu_Cas01_im_t heap_act =
 302             xbt_heap_remove(cpu_im_action_heap, action->index_heap);
 303         if (heap_act != action)
 304           DIE_IMPOSSIBLE;
 305       }
 306       if (min != -1) {
 307         xbt_heap_push(cpu_im_action_heap, action, min);
 308         XBT_DEBUG("Insert at heap action(%p) min %lf", action, min);
 309       }
 310     }
 311     xbt_swag_remove(cpu, cpu_im_modified_cpu);
 312   }
 313   return xbt_heap_size(cpu_im_action_heap) >
 314       0 ? xbt_heap_maxkey(cpu_im_action_heap) - now : -1;
 315 }
 316
 317 static void cpu_im_update_actions_state(double now, double delta)
 318 {
 319   surf_action_cpu_Cas01_im_t action;
 320
 321   while ((xbt_heap_size(cpu_im_action_heap) > 0)
 322          && (double_equals(xbt_heap_maxkey(cpu_im_action_heap), now))) {
 323     action = xbt_heap_pop(cpu_im_action_heap);
 324     XBT_DEBUG("Action %p: finish", action);
 325     GENERIC_ACTION(action).finish = surf_get_clock();
 326     /* set the remains to 0 due to precision problems when updating the remaining amount */
 327 #ifdef HAVE_TRACING
 328     {
 329       cpu_Cas01_im_t cpu = ((cpu_Cas01_im_t)(action->cpu));
 330       TRACE_surf_host_set_utilization(cpu->generic_resource.name,
 331           action->generic_lmm_action.generic_action.data,
 332           (surf_action_t) action,
 333           lmm_variable_getvalue (GENERIC_LMM_ACTION(action).variable),
 334           cpu->last_update,
 335           now - cpu->last_update);
 336     }
 337 #endif
 338     GENERIC_ACTION(action).remains = 0;
 339     cpu_im_cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 340     cpu_im_update_remains(action->cpu, surf_get_clock());
 341   }
 342 #ifdef HAVE_TRACING
 343   {
 344     //defining the last timestamp that we can safely dump to trace file
 345     //without losing the event ascending order (considering all CPU's)
 346         void **data;
 347     cpu_Cas01_im_t cpu;
 348     xbt_lib_cursor_t cursor;
 349     char *key;
 350     double smaller = -1;
 351     xbt_lib_foreach(host_lib, cursor, key, data){
 352         if(data[SURF_CPU_LEVEL]){
 353           cpu = data[SURF_CPU_LEVEL];
 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    }
 363     if (smaller > 0) {
 364       TRACE_last_timestamp_to_dump = smaller;
 365     }
 366   }
 367 #endif
 368   return;
 369 }
 370
 371 static void cpu_im_update_resource_state(void *id,
 372                                          tmgr_trace_event_t event_type,
 373                                          double value, double date)
 374 {
 375   cpu_Cas01_im_t cpu = id;
 376   lmm_variable_t var = NULL;
 377   lmm_element_t elem = NULL;
 378
 379   if (event_type == cpu->power_event) {
 380     cpu->power_scale = value;
 381     lmm_update_constraint_bound(cpu_im_maxmin_system, cpu->constraint,
 382                                 cpu->core * cpu->power_scale * cpu->power_peak);
 383 #ifdef HAVE_TRACING
 384     TRACE_surf_host_set_power(date, cpu->generic_resource.name,
 385                               cpu->core * cpu->power_scale * cpu->power_peak);
 386 #endif
 387     while ((var = lmm_get_var_from_cnst
 388             (cpu_im_maxmin_system, cpu->constraint, &elem))) {
 389         surf_action_cpu_Cas01_im_t action = lmm_variable_id(var);
 390         lmm_update_variable_bound(cpu_im_maxmin_system, action->generic_lmm_action.variable,
 391                                   cpu->power_scale * cpu->power_peak);
 392     }
 393     xbt_swag_insert(cpu, cpu_im_modified_cpu);
 394     if (tmgr_trace_event_free(event_type))
 395       cpu->power_event = NULL;
 396   } else if (event_type == cpu->state_event) {
 397     if (value > 0)
 398       cpu->state_current = SURF_RESOURCE_ON;
 399     else {
 400       lmm_constraint_t cnst = cpu->constraint;
 401       lmm_variable_t var = NULL;
 402       lmm_element_t elem = NULL;
 403
 404       cpu->state_current = SURF_RESOURCE_OFF;
 405
 406       while ((var =
 407               lmm_get_var_from_cnst(cpu_im_maxmin_system, cnst, &elem))) {
 408         surf_action_t action = lmm_variable_id(var);
 409
 410         if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
 411             surf_action_state_get(action) == SURF_ACTION_READY ||
 412             surf_action_state_get(action) ==
 413             SURF_ACTION_NOT_IN_THE_SYSTEM) {
 414           action->finish = date;
 415           cpu_im_cpu_action_state_set(action, SURF_ACTION_FAILED);
 416         }
 417       }
 418     }
 419     if (tmgr_trace_event_free(event_type))
 420       cpu->state_event = NULL;
 421   } else {
 422     XBT_CRITICAL("Unknown event ! \n");
 423     xbt_abort();
 424   }
 425
 426   return;
 427 }
 428
 429 static surf_action_t cpu_im_execute(void *cpu, double size)
 430 {
 431   surf_action_cpu_Cas01_im_t action = NULL;
 432   cpu_Cas01_im_t CPU = cpu;
 433
 434   XBT_IN("(%s,%g)", surf_resource_name(CPU), size);
 435   action =
 436       surf_action_new(sizeof(s_surf_action_cpu_Cas01_im_t), size,
 437                       surf_cpu_model,
 438                       CPU->state_current != SURF_RESOURCE_ON);
 439
 440   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 441                                                    calloc but it seems to help valgrind... */
 442
 443   GENERIC_LMM_ACTION(action).variable =
 444       lmm_variable_new(cpu_im_maxmin_system, action,
 445                        GENERIC_ACTION(action).priority, CPU->power_scale * CPU->power_peak, 1);
 446   action->index_heap = -1;
 447   action->cpu = CPU;
 448   xbt_swag_insert(CPU, cpu_im_modified_cpu);
 449   xbt_swag_insert(action, CPU->action_set);
 450   lmm_expand(cpu_im_maxmin_system, CPU->constraint,
 451              GENERIC_LMM_ACTION(action).variable, 1.0);
 452   XBT_OUT();
 453   return (surf_action_t) action;
 454 }
 455
 456 static surf_action_t cpu_im_action_sleep(void *cpu, double duration)
 457 {
 458   surf_action_cpu_Cas01_im_t action = NULL;
 459
 460   if (duration > 0)
 461     duration = MAX(duration, MAXMIN_PRECISION);
 462
 463   XBT_IN("(%s,%g)", surf_resource_name(cpu), duration);
 464   action = (surf_action_cpu_Cas01_im_t) cpu_im_execute(cpu, 1.0);
 465   GENERIC_ACTION(action).max_duration = duration;
 466   GENERIC_LMM_ACTION(action).suspended = 2;
 467   if (duration == NO_MAX_DURATION) {
 468     /* Move to the *end* of the corresponding action set. This convention
 469        is used to speed up update_resource_state  */
 470     xbt_swag_remove(action, ((surf_action_t) action)->state_set);
 471     ((surf_action_t) action)->state_set =
 472         cpu_im_running_action_set_that_does_not_need_being_checked;
 473     xbt_swag_insert(action, ((surf_action_t) action)->state_set);
 474   }
 475
 476   lmm_update_variable_weight(cpu_im_maxmin_system,
 477                              GENERIC_LMM_ACTION(action).variable, 0.0);
 478   xbt_swag_insert(cpu, cpu_im_modified_cpu);
 479   XBT_OUT();
 480   return (surf_action_t) action;
 481 }
 482
 483 static void cpu_im_action_suspend(surf_action_t action)
 484 {
 485   XBT_IN("(%p)", action);
 486   if (((surf_action_lmm_t) action)->suspended != 2) {
 487     lmm_update_variable_weight(cpu_im_maxmin_system,
 488                                ((surf_action_lmm_t) action)->variable,
 489                                0.0);
 490     ((surf_action_lmm_t) action)->suspended = 1;
 491     xbt_heap_remove(cpu_im_action_heap,
 492                     ((surf_action_cpu_Cas01_im_t) action)->index_heap);
 493     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 494   }
 495   XBT_OUT();
 496 }
 497
 498 static void cpu_im_action_resume(surf_action_t action)
 499 {
 500
 501   XBT_IN("(%p)", action);
 502   if (((surf_action_lmm_t) action)->suspended != 2) {
 503     lmm_update_variable_weight(cpu_im_maxmin_system,
 504                                ((surf_action_lmm_t) action)->variable,
 505                                action->priority);
 506     ((surf_action_lmm_t) action)->suspended = 0;
 507     xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 508   }
 509   XBT_OUT();
 510 }
 511
 512 static int cpu_im_action_is_suspended(surf_action_t action)
 513 {
 514   return (((surf_action_lmm_t) action)->suspended == 1);
 515 }
 516
 517 static void cpu_im_action_set_max_duration(surf_action_t action,
 518                                            double duration)
 519 {
 520   XBT_IN("(%p,%g)", action, duration);
 521
 522   action->max_duration = duration;
 523   /* insert cpu in modified_cpu set to notice the max duration change */
 524   xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 525   XBT_OUT();
 526 }
 527
 528 static void cpu_im_action_set_priority(surf_action_t action,
 529                                        double priority)
 530 {
 531   XBT_IN("(%p,%g)", action, priority);
 532   action->priority = priority;
 533   lmm_update_variable_weight(cpu_im_maxmin_system,
 534                              ((surf_action_lmm_t) action)->variable,
 535                              priority);
 536
 537   xbt_swag_insert(ACTION_GET_CPU(action), cpu_im_modified_cpu);
 538   XBT_OUT();
 539 }
 540
 541 #ifdef HAVE_TRACING
 542 static void cpu_im_action_set_category(surf_action_t action,
 543                                        const char *category)
 544 {
 545   XBT_IN("(%p,%s)", action, category);
 546   action->category = xbt_strdup (category);
 547   XBT_OUT();
 548 }
 549 #endif
 550
 551 static double cpu_im_action_get_remains(surf_action_t action)
 552 {
 553   XBT_IN("(%p)", action);
 554   /* update remains before return it */
 555   cpu_im_update_remains(ACTION_GET_CPU(action), surf_get_clock());
 556   return action->remains;
 557   XBT_OUT();
 558 }
 559
 560 static e_surf_resource_state_t cpu_im_get_state(void *cpu)
 561 {
 562   return ((cpu_Cas01_im_t) cpu)->state_current;
 563 }
 564
 565 static double cpu_im_get_speed(void *cpu, double load)
 566 {
 567   return load * (((cpu_Cas01_im_t) cpu)->power_peak);
 568 }
 569
 570 static double cpu_im_get_available_speed(void *cpu)
 571 {
 572   /* number between 0 and 1 */
 573   return ((cpu_Cas01_im_t) cpu)->power_scale;
 574 }
 575
 576 static void cpu_im_action_update_index_heap(void *action, int i)
 577 {
 578   ((surf_action_cpu_Cas01_im_t) action)->index_heap = i;
 579 }
 580
 581 static void cpu_im_create_resource(char *name, double power_peak,
 582                                    double power_scale,
 583                                    tmgr_trace_t power_trace,
 584                                    int core,
 585                                    e_surf_resource_state_t state_initial,
 586                                    tmgr_trace_t state_trace,
 587                                    xbt_dict_t cpu_properties)
 588 {
 589   cpu_im_new(name, power_peak, power_scale, power_trace, core,
 590              state_initial, state_trace, cpu_properties);
 591 }
 592
 593 static void cpu_im_finalize(void)
 594 {
 595   void **cpu;
 596   xbt_lib_cursor_t cursor;
 597   char *key;
 598
 599   xbt_lib_foreach(host_lib, cursor, key, cpu){
 600           if(cpu[SURF_CPU_LEVEL])
 601           {
 602                     cpu_Cas01_im_t CPU = cpu[SURF_CPU_LEVEL];
 603                     xbt_swag_free(CPU->action_set);
 604           }
 605   }
 606
 607   lmm_system_free(cpu_im_maxmin_system);
 608   cpu_im_maxmin_system = NULL;
 609
 610   surf_model_exit(surf_cpu_model);
 611   surf_cpu_model = NULL;
 612
 613   xbt_swag_free
 614       (cpu_im_running_action_set_that_does_not_need_being_checked);
 615   cpu_im_running_action_set_that_does_not_need_being_checked = NULL;
 616   xbt_heap_free(cpu_im_action_heap);
 617   xbt_swag_free(cpu_im_modified_cpu);
 618 }
 619
 620 static void surf_cpu_im_model_init_internal(void)
 621 {
 622   s_surf_action_t action;
 623   s_cpu_Cas01_im_t cpu;
 624
 625   surf_cpu_model = surf_model_init();
 626
 627   cpu_im_running_action_set_that_does_not_need_being_checked =
 628       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 629
 630   surf_cpu_model->name = "CPU_IM";
 631
 632   surf_cpu_model->action_unref = cpu_im_action_unref;
 633   surf_cpu_model->action_cancel = cpu_im_action_cancel;
 634   surf_cpu_model->action_state_set = cpu_im_cpu_action_state_set;
 635
 636   surf_cpu_model->model_private->resource_used = cpu_im_resource_used;
 637   surf_cpu_model->model_private->share_resources = cpu_im_share_resources;
 638   surf_cpu_model->model_private->update_actions_state =
 639       cpu_im_update_actions_state;
 640   surf_cpu_model->model_private->update_resource_state =
 641       cpu_im_update_resource_state;
 642   surf_cpu_model->model_private->finalize = cpu_im_finalize;
 643
 644   surf_cpu_model->suspend = cpu_im_action_suspend;
 645   surf_cpu_model->resume = cpu_im_action_resume;
 646   surf_cpu_model->is_suspended = cpu_im_action_is_suspended;
 647   surf_cpu_model->set_max_duration = cpu_im_action_set_max_duration;
 648   surf_cpu_model->set_priority = cpu_im_action_set_priority;
 649 #ifdef HAVE_TRACING
 650   surf_cpu_model->set_category = cpu_im_action_set_category;
 651 #endif
 652   surf_cpu_model->get_remains = cpu_im_action_get_remains;
 653
 654   surf_cpu_model->extension.cpu.execute = cpu_im_execute;
 655   surf_cpu_model->extension.cpu.sleep = cpu_im_action_sleep;
 656
 657   surf_cpu_model->extension.cpu.get_state = cpu_im_get_state;
 658   surf_cpu_model->extension.cpu.get_speed = cpu_im_get_speed;
 659   surf_cpu_model->extension.cpu.get_available_speed =
 660       cpu_im_get_available_speed;
 661   surf_cpu_model->extension.cpu.create_resource = cpu_im_create_resource;
 662   surf_cpu_model->extension.cpu.add_traces = cpu_im_add_traces_cpu;
 663
 664   if (!cpu_im_maxmin_system) {
 665     sg_maxmin_selective_update = 1;
 666     cpu_im_maxmin_system = lmm_system_new();
 667   }
 668   cpu_im_action_heap = xbt_heap_new(8, NULL);
 669   xbt_heap_set_update_callback(cpu_im_action_heap,
 670                                cpu_im_action_update_index_heap);
 671   cpu_im_modified_cpu =
 672       xbt_swag_new(xbt_swag_offset(cpu, modified_cpu_hookup));
 673 }
 674
 675 /*********************************************************************/
 676 /* Basic sharing model for CPU: that is where all this started... ;) */
 677 /*********************************************************************/
 678 /* @InProceedings{casanova01simgrid, */
 679 /*   author =       "H. Casanova", */
 680 /*   booktitle =    "Proceedings of the IEEE Symposium on Cluster Computing */
 681 /*                  and the Grid (CCGrid'01)", */
 682 /*   publisher =    "IEEE Computer Society", */
 683 /*   title =        "Simgrid: {A} Toolkit for the Simulation of Application */
 684 /*                  Scheduling", */
 685 /*   year =         "2001", */
 686 /*   month =        may, */
 687 /*   note =         "Available at */
 688 /*                  \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
 689 /* } */
 690 void surf_cpu_model_init_Cas01_im(const char *filename)
 691 {
 692   if (surf_cpu_model)
 693     return;
 694   surf_cpu_im_model_init_internal();
 695   cpu_im_define_callbacks(filename);
 696   xbt_dynar_push(model_list, &surf_cpu_model);
 697 }