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