1 /* Copyright (c) 2009-2011. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include "surf_private.h"
8 #include "surf/surf_resource.h"
10 surf_model_t surf_cpu_model = NULL;
11 lmm_system_t cpu_maxmin_system = NULL;
12 e_UM_t cpu_update_mechanism = UM_UNDEFINED;
13 static int cpu_selective_update = 0;
15 static xbt_swag_t cpu_modified_cpu = NULL;
16 static xbt_heap_t cpu_action_heap = NULL;
18 #undef GENERIC_LMM_ACTION
21 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
22 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
23 #define ACTION_GET_CPU(action) ((surf_action_cpu_Cas01_t) action)->cpu
25 typedef struct surf_action_cpu_cas01 {
26 s_surf_action_lmm_t generic_lmm_action;
27 s_xbt_swag_hookup_t cpu_list_hookup;
30 } s_surf_action_cpu_Cas01_t, *surf_action_cpu_Cas01_t;
32 typedef struct cpu_Cas01 {
33 s_surf_resource_t generic_resource;
34 s_xbt_swag_hookup_t modified_cpu_hookup;
37 tmgr_trace_event_t power_event;
39 e_surf_resource_state_t state_current;
40 tmgr_trace_event_t state_event;
41 lmm_constraint_t constraint;
42 xbt_swag_t action_set;
44 } s_cpu_Cas01_t, *cpu_Cas01_t;
46 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf,
47 "Logging specific to the SURF CPU IMPROVED module");
52 cpu_running_action_set_that_does_not_need_being_checked = NULL;
54 static void* cpu_create_resource(const char *name, double power_peak,
56 tmgr_trace_t power_trace,
58 e_surf_resource_state_t state_initial,
59 tmgr_trace_t state_trace,
60 xbt_dict_t cpu_properties)
62 cpu_Cas01_t cpu = NULL;
63 s_surf_action_cpu_Cas01_t action;
65 xbt_assert(!surf_cpu_resource_by_name(name),
66 "Host '%s' declared several times in the platform file",
68 cpu = (cpu_Cas01_t) surf_resource_new(sizeof(s_cpu_Cas01_t),
69 surf_cpu_model, name,cpu_properties);
70 cpu->power_peak = power_peak;
71 xbt_assert(cpu->power_peak > 0, "Power has to be >0");
72 cpu->power_scale = power_scale;
74 xbt_assert(core>0,"Invalid number of cores %d",core);
78 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
80 cpu->state_current = state_initial;
83 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
86 lmm_constraint_new(cpu_maxmin_system, cpu,
87 cpu->core * cpu->power_scale * cpu->power_peak);
89 xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, cpu);
90 if(cpu_update_mechanism == UM_LAZY)
91 cpu->action_set = xbt_swag_new(xbt_swag_offset(action, cpu_list_hookup));
97 static void parse_cpu_init(sg_platf_host_cbarg_t host)
99 cpu_create_resource(host->id,
109 static void cpu_add_traces_cpu(void)
111 xbt_dict_cursor_t cursor = NULL;
112 char *trace_name, *elm;
113 static int called = 0;
118 /* connect all traces relative to hosts */
119 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
120 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
121 cpu_Cas01_t host = surf_cpu_resource_by_name(elm);
123 xbt_assert(host, "Host %s undefined", elm);
124 xbt_assert(trace, "Trace %s undefined", trace_name);
127 tmgr_history_add_trace(history, trace, 0.0, 0, host);
130 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
131 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
132 cpu_Cas01_t host = surf_cpu_resource_by_name(elm);
134 xbt_assert(host, "Host %s undefined", elm);
135 xbt_assert(trace, "Trace %s undefined", trace_name);
138 tmgr_history_add_trace(history, trace, 0.0, 0, host);
142 static void cpu_define_callbacks()
144 sg_platf_host_add_cb(parse_cpu_init);
145 sg_platf_postparse_add_cb(cpu_add_traces_cpu);
148 static int cpu_resource_used(void *resource)
150 return lmm_constraint_used(cpu_maxmin_system,
151 ((cpu_Cas01_t) resource)->constraint);
154 static int cpu_action_unref(surf_action_t action)
157 if (!action->refcount) {
158 xbt_swag_remove(action, action->state_set);
159 if (((surf_action_lmm_t) action)->variable)
160 lmm_variable_free(cpu_maxmin_system,
161 ((surf_action_lmm_t) action)->variable);
162 if(cpu_update_mechanism == UM_LAZY){
163 /* remove from heap */
164 xbt_heap_remove(cpu_action_heap,
165 ((surf_action_cpu_Cas01_t) action)->index_heap);
166 xbt_swag_remove(action,
167 ((cpu_Cas01_t) ACTION_GET_CPU(action))->action_set);
168 xbt_swag_insert(ACTION_GET_CPU(action), cpu_modified_cpu);
171 xbt_free(action->category);
173 surf_action_free(&action);
179 static void cpu_action_cancel(surf_action_t action)
181 surf_action_state_set(action, SURF_ACTION_FAILED);
182 if(cpu_update_mechanism == UM_LAZY){
183 xbt_heap_remove(cpu_action_heap,
184 ((surf_action_cpu_Cas01_t) action)->index_heap);
185 xbt_swag_remove(action,
186 ((cpu_Cas01_t) ACTION_GET_CPU(action))->action_set);
191 static void cpu_cpu_action_state_set(surf_action_t action,
192 e_surf_action_state_t state)
194 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
195 /* if(((surf_action_lmm_t)action)->variable) { */
196 /* lmm_variable_disable(cpu_maxmin_system, ((surf_action_lmm_t)action)->variable); */
197 /* ((surf_action_lmm_t)action)->variable = NULL; */
200 surf_action_state_set(action, state);
204 static void cpu_update_remains(cpu_Cas01_t cpu, double now)
206 surf_action_cpu_Cas01_t action;
208 if (cpu->last_update >= now)
210 xbt_swag_foreach(action, cpu->action_set) {
211 if (GENERIC_ACTION(action).state_set !=
212 surf_cpu_model->states.running_action_set)
215 /* bogus priority, skip it */
216 if (GENERIC_ACTION(action).priority <= 0)
219 if (GENERIC_ACTION(action).remains > 0) {
220 double_update(&(GENERIC_ACTION(action).remains),
221 lmm_variable_getvalue(GENERIC_LMM_ACTION
222 (action).variable) * (now -
225 if (TRACE_is_enabled()) {
226 TRACE_surf_host_set_utilization(cpu->generic_resource.name,
228 generic_lmm_action.generic_action.
229 data, (surf_action_t) action,
230 lmm_variable_getvalue
234 now - cpu->last_update);
237 XBT_DEBUG("Update action(%p) remains %lf", action,
238 GENERIC_ACTION(action).remains);
241 cpu->last_update = now;
244 static double cpu_share_resources_lazy(double now)
246 surf_action_cpu_Cas01_t action;
249 cpu_Cas01_t cpu, cpu_next;
251 xbt_swag_foreach(cpu, cpu_modified_cpu)
252 cpu_update_remains(cpu, now);
254 lmm_solve(cpu_maxmin_system);
256 xbt_swag_foreach_safe(cpu, cpu_next, cpu_modified_cpu) {
257 xbt_swag_foreach(action, cpu->action_set) {
258 if (GENERIC_ACTION(action).state_set !=
259 surf_cpu_model->states.running_action_set)
262 /* bogus priority, skip it */
263 if (GENERIC_ACTION(action).priority <= 0)
267 value = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
269 if (GENERIC_ACTION(action).remains > 0) {
270 value = GENERIC_ACTION(action).remains / value;
278 if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
280 || GENERIC_ACTION(action).start +
281 GENERIC_ACTION(action).max_duration < min))
283 GENERIC_ACTION(action).start +
284 GENERIC_ACTION(action).max_duration;
286 XBT_DEBUG("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
287 GENERIC_ACTION(action).start, now + value,
288 GENERIC_ACTION(action).max_duration);
290 if (action->index_heap >= 0) {
291 surf_action_cpu_Cas01_t heap_act =
292 xbt_heap_remove(cpu_action_heap, action->index_heap);
293 if (heap_act != action)
297 xbt_heap_push(cpu_action_heap, action, min);
298 XBT_DEBUG("Insert at heap action(%p) min %lf", action, min);
301 xbt_swag_remove(cpu, cpu_modified_cpu);
303 return xbt_heap_size(cpu_action_heap) >
304 0 ? xbt_heap_maxkey(cpu_action_heap) - now : -1;
307 static double cpu_share_resources_full(double now) {
308 s_surf_action_cpu_Cas01_t action;
309 return generic_maxmin_share_resources(surf_cpu_model->states.running_action_set,
310 xbt_swag_offset(action, generic_lmm_action.variable),
311 cpu_maxmin_system, lmm_solve);
314 static void cpu_update_actions_state_lazy(double now, double delta)
316 surf_action_cpu_Cas01_t action;
317 while ((xbt_heap_size(cpu_action_heap) > 0)
318 && (double_equals(xbt_heap_maxkey(cpu_action_heap), now))) {
319 action = xbt_heap_pop(cpu_action_heap);
320 XBT_DEBUG("Action %p: finish", action);
321 GENERIC_ACTION(action).finish = surf_get_clock();
322 /* set the remains to 0 due to precision problems when updating the remaining amount */
324 if (TRACE_is_enabled()) {
325 cpu_Cas01_t cpu = ((cpu_Cas01_t)(action->cpu));
326 TRACE_surf_host_set_utilization(cpu->generic_resource.name,
327 GENERIC_LMM_ACTION(action).generic_action.data,
328 (surf_action_t) action,
329 lmm_variable_getvalue (GENERIC_LMM_ACTION(action).variable),
331 now - cpu->last_update);
334 GENERIC_ACTION(action).remains = 0;
335 cpu_cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
336 cpu_update_remains(action->cpu, surf_get_clock());
339 if (TRACE_is_enabled()) {
340 //defining the last timestamp that we can safely dump to trace file
341 //without losing the event ascending order (considering all CPU's)
344 xbt_lib_cursor_t cursor;
347 xbt_lib_foreach(host_lib, cursor, key, data){
348 if(data[SURF_CPU_LEVEL]){
349 cpu = data[SURF_CPU_LEVEL];
351 smaller = cpu->last_update;
354 if (cpu->last_update < smaller){
355 smaller = cpu->last_update;
360 TRACE_last_timestamp_to_dump = smaller;
367 static void cpu_update_actions_state_full(double now, double delta)
369 surf_action_cpu_Cas01_t action = NULL;
370 surf_action_cpu_Cas01_t next_action = NULL;
371 xbt_swag_t running_actions = surf_cpu_model->states.running_action_set;
372 xbt_swag_foreach_safe(action, next_action, running_actions) {
374 if (TRACE_is_enabled()) {
376 lmm_constraint_id(lmm_get_cnst_from_var
377 (cpu_maxmin_system, GENERIC_LMM_ACTION(action).variable, 0));
379 TRACE_surf_host_set_utilization(x->generic_resource.name,
380 GENERIC_ACTION(action).data,
381 (surf_action_t) action,
382 lmm_variable_getvalue
383 (GENERIC_LMM_ACTION(action).variable), now - delta,
385 TRACE_last_timestamp_to_dump = now-delta;
388 double_update(&(GENERIC_ACTION(action).remains),
389 lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
390 if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
391 double_update(&(GENERIC_ACTION(action).max_duration), delta);
392 if ((GENERIC_ACTION(action).remains <= 0) &&
393 (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0)) {
394 GENERIC_ACTION(action).finish = surf_get_clock();
395 cpu_cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
396 } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
397 (GENERIC_ACTION(action).max_duration <= 0)) {
398 GENERIC_ACTION(action).finish = surf_get_clock();
399 cpu_cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
406 static void cpu_update_resource_state(void *id,
407 tmgr_trace_event_t event_type,
408 double value, double date)
410 cpu_Cas01_t cpu = id;
411 lmm_variable_t var = NULL;
412 lmm_element_t elem = NULL;
414 if (event_type == cpu->power_event) {
415 cpu->power_scale = value;
416 lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
417 cpu->core * cpu->power_scale * cpu->power_peak);
419 TRACE_surf_host_set_power(date, cpu->generic_resource.name,
420 cpu->core * cpu->power_scale * cpu->power_peak);
422 while ((var = lmm_get_var_from_cnst
423 (cpu_maxmin_system, cpu->constraint, &elem))) {
424 surf_action_cpu_Cas01_t action = lmm_variable_id(var);
425 lmm_update_variable_bound(cpu_maxmin_system, GENERIC_LMM_ACTION(action).variable,
426 cpu->power_scale * cpu->power_peak);
428 if(cpu_update_mechanism == UM_LAZY)
429 xbt_swag_insert(cpu, cpu_modified_cpu);
430 if (tmgr_trace_event_free(event_type))
431 cpu->power_event = NULL;
432 } else if (event_type == cpu->state_event) {
434 cpu->state_current = SURF_RESOURCE_ON;
436 lmm_constraint_t cnst = cpu->constraint;
438 cpu->state_current = SURF_RESOURCE_OFF;
441 lmm_get_var_from_cnst(cpu_maxmin_system, cnst, &elem))) {
442 surf_action_t action = lmm_variable_id(var);
444 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
445 surf_action_state_get(action) == SURF_ACTION_READY ||
446 surf_action_state_get(action) ==
447 SURF_ACTION_NOT_IN_THE_SYSTEM) {
448 action->finish = date;
449 cpu_cpu_action_state_set(action, SURF_ACTION_FAILED);
453 if (tmgr_trace_event_free(event_type))
454 cpu->state_event = NULL;
456 XBT_CRITICAL("Unknown event ! \n");
463 static surf_action_t cpu_execute(void *cpu, double size)
465 surf_action_cpu_Cas01_t action = NULL;
466 cpu_Cas01_t CPU = cpu;
468 XBT_IN("(%s,%g)", surf_resource_name(CPU), size);
470 surf_action_new(sizeof(s_surf_action_cpu_Cas01_t), size,
472 CPU->state_current != SURF_RESOURCE_ON);
474 GENERIC_LMM_ACTION(action).suspended = 0; /* Should be useless because of the
475 calloc but it seems to help valgrind... */
477 GENERIC_LMM_ACTION(action).variable =
478 lmm_variable_new(cpu_maxmin_system, action,
479 GENERIC_ACTION(action).priority, CPU->power_scale * CPU->power_peak, 1);
480 if(cpu_update_mechanism == UM_LAZY){
481 action->index_heap = -1;
483 xbt_swag_insert(CPU, cpu_modified_cpu);
484 xbt_swag_insert(action, CPU->action_set);
486 lmm_expand(cpu_maxmin_system, CPU->constraint,
487 GENERIC_LMM_ACTION(action).variable, 1.0);
489 return (surf_action_t) action;
492 static surf_action_t cpu_action_sleep(void *cpu, double duration)
494 surf_action_cpu_Cas01_t action = NULL;
497 duration = MAX(duration, MAXMIN_PRECISION);
499 XBT_IN("(%s,%g)", surf_resource_name(cpu), duration);
500 action = (surf_action_cpu_Cas01_t) cpu_execute(cpu, 1.0);
501 GENERIC_ACTION(action).max_duration = duration;
502 GENERIC_LMM_ACTION(action).suspended = 2;
503 if (duration == NO_MAX_DURATION) {
504 /* Move to the *end* of the corresponding action set. This convention
505 is used to speed up update_resource_state */
506 xbt_swag_remove(action, ((surf_action_t) action)->state_set);
507 ((surf_action_t) action)->state_set =
508 cpu_running_action_set_that_does_not_need_being_checked;
509 xbt_swag_insert(action, ((surf_action_t) action)->state_set);
512 lmm_update_variable_weight(cpu_maxmin_system,
513 GENERIC_LMM_ACTION(action).variable, 0.0);
514 if(cpu_update_mechanism == UM_LAZY)
515 xbt_swag_insert(cpu, cpu_modified_cpu);
517 return (surf_action_t) action;
520 static void cpu_action_suspend(surf_action_t action)
522 XBT_IN("(%p)", action);
523 if (((surf_action_lmm_t) action)->suspended != 2) {
524 lmm_update_variable_weight(cpu_maxmin_system,
525 ((surf_action_lmm_t) action)->variable,
527 ((surf_action_lmm_t) action)->suspended = 1;
528 if(cpu_update_mechanism == UM_LAZY){
529 xbt_heap_remove(cpu_action_heap,
530 ((surf_action_cpu_Cas01_t) action)->index_heap);
531 xbt_swag_insert(ACTION_GET_CPU(action), cpu_modified_cpu);
537 static void cpu_action_resume(surf_action_t action)
540 XBT_IN("(%p)", action);
541 if (((surf_action_lmm_t) action)->suspended != 2) {
542 lmm_update_variable_weight(cpu_maxmin_system,
543 ((surf_action_lmm_t) action)->variable,
545 ((surf_action_lmm_t) action)->suspended = 0;
546 if(cpu_update_mechanism == UM_LAZY)
547 xbt_swag_insert(ACTION_GET_CPU(action), cpu_modified_cpu);
552 static int cpu_action_is_suspended(surf_action_t action)
554 return (((surf_action_lmm_t) action)->suspended == 1);
557 static void cpu_action_set_max_duration(surf_action_t action,
560 XBT_IN("(%p,%g)", action, duration);
562 action->max_duration = duration;
563 /* insert cpu in modified_cpu set to notice the max duration change */
564 if(cpu_update_mechanism == UM_LAZY)
565 xbt_swag_insert(ACTION_GET_CPU(action), cpu_modified_cpu);
569 static void cpu_action_set_priority(surf_action_t action,
572 XBT_IN("(%p,%g)", action, priority);
573 action->priority = priority;
574 lmm_update_variable_weight(cpu_maxmin_system,
575 ((surf_action_lmm_t) action)->variable,
578 if(cpu_update_mechanism == UM_LAZY)
579 xbt_swag_insert(ACTION_GET_CPU(action), cpu_modified_cpu);
584 static void cpu_action_set_category(surf_action_t action,
585 const char *category)
587 XBT_IN("(%p,%s)", action, category);
588 action->category = xbt_strdup (category);
593 static double cpu_action_get_remains(surf_action_t action)
595 XBT_IN("(%p)", action);
596 /* update remains before return it */
597 if(cpu_update_mechanism == UM_LAZY)
598 cpu_update_remains(ACTION_GET_CPU(action), surf_get_clock());
600 return action->remains;
603 static e_surf_resource_state_t cpu_get_state(void *cpu)
605 return ((cpu_Cas01_t) cpu)->state_current;
608 static double cpu_get_speed(void *cpu, double load)
610 return load * (((cpu_Cas01_t) cpu)->power_peak);
613 static double cpu_get_available_speed(void *cpu)
615 /* number between 0 and 1 */
616 return ((cpu_Cas01_t) cpu)->power_scale;
619 static void cpu_action_update_index_heap(void *action, int i)
621 ((surf_action_cpu_Cas01_t) action)->index_heap = i;
624 static void cpu_finalize(void)
627 xbt_lib_cursor_t cursor;
630 xbt_lib_foreach(host_lib, cursor, key, cpu){
631 if(cpu[SURF_CPU_LEVEL])
633 cpu_Cas01_t CPU = cpu[SURF_CPU_LEVEL];
634 xbt_swag_free(CPU->action_set);
638 lmm_system_free(cpu_maxmin_system);
639 cpu_maxmin_system = NULL;
641 surf_model_exit(surf_cpu_model);
642 surf_cpu_model = NULL;
645 (cpu_running_action_set_that_does_not_need_being_checked);
646 cpu_running_action_set_that_does_not_need_being_checked = NULL;
647 if(cpu_action_heap) xbt_heap_free(cpu_action_heap);
648 if(cpu_modified_cpu) xbt_swag_free(cpu_modified_cpu);
651 static void surf_cpu_model_init_internal()
653 s_surf_action_t action;
656 surf_cpu_model = surf_model_init();
658 cpu_running_action_set_that_does_not_need_being_checked =
659 xbt_swag_new(xbt_swag_offset(action, state_hookup));
661 surf_cpu_model->name = "cpu";
663 surf_cpu_model->action_unref = cpu_action_unref;
664 surf_cpu_model->action_cancel = cpu_action_cancel;
665 surf_cpu_model->action_state_set = cpu_cpu_action_state_set;
667 surf_cpu_model->model_private->resource_used = cpu_resource_used;
669 if(cpu_update_mechanism == UM_LAZY) {
670 surf_cpu_model->model_private->share_resources = cpu_share_resources_lazy;
671 surf_cpu_model->model_private->update_actions_state = cpu_update_actions_state_lazy;
672 } else if (cpu_update_mechanism == UM_FULL) {
673 surf_cpu_model->model_private->share_resources = cpu_share_resources_full;
674 surf_cpu_model->model_private->update_actions_state = cpu_update_actions_state_full;
676 xbt_die("Invalid update mechanism!");
678 surf_cpu_model->model_private->update_resource_state =
679 cpu_update_resource_state;
680 surf_cpu_model->model_private->finalize = cpu_finalize;
682 surf_cpu_model->suspend = cpu_action_suspend;
683 surf_cpu_model->resume = cpu_action_resume;
684 surf_cpu_model->is_suspended = cpu_action_is_suspended;
685 surf_cpu_model->set_max_duration = cpu_action_set_max_duration;
686 surf_cpu_model->set_priority = cpu_action_set_priority;
688 surf_cpu_model->set_category = cpu_action_set_category;
690 surf_cpu_model->get_remains = cpu_action_get_remains;
692 surf_cpu_model->extension.cpu.execute = cpu_execute;
693 surf_cpu_model->extension.cpu.sleep = cpu_action_sleep;
695 surf_cpu_model->extension.cpu.get_state = cpu_get_state;
696 surf_cpu_model->extension.cpu.get_speed = cpu_get_speed;
697 surf_cpu_model->extension.cpu.get_available_speed =
698 cpu_get_available_speed;
699 surf_cpu_model->extension.cpu.create_resource = cpu_create_resource;
700 surf_cpu_model->extension.cpu.add_traces = cpu_add_traces_cpu;
702 if (!cpu_maxmin_system) {
703 cpu_maxmin_system = lmm_system_new(cpu_selective_update);
705 if(cpu_update_mechanism == UM_LAZY){
706 cpu_action_heap = xbt_heap_new(8, NULL);
707 xbt_heap_set_update_callback(cpu_action_heap,
708 cpu_action_update_index_heap);
710 xbt_swag_new(xbt_swag_offset(cpu, modified_cpu_hookup));
714 /*********************************************************************/
715 /* Basic sharing model for CPU: that is where all this started... ;) */
716 /*********************************************************************/
717 /* @InProceedings{casanova01simgrid, */
718 /* author = "H. Casanova", */
719 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
720 /* and the Grid (CCGrid'01)", */
721 /* publisher = "IEEE Computer Society", */
722 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
726 /* note = "Available at */
727 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
730 void surf_cpu_model_init_Cas01()
732 char *optim = xbt_cfg_get_string(_surf_cfg_set, "cpu/optim");
733 int select = xbt_cfg_get_int(_surf_cfg_set, "cpu/maxmin_selective_update");
735 if(!strcmp(optim,"Full")) {
736 cpu_update_mechanism = UM_FULL;
737 cpu_selective_update = select;
738 } else if (!strcmp(optim,"Lazy")) {
739 cpu_update_mechanism = UM_LAZY;
740 cpu_selective_update = 1;
741 xbt_assert((select==1) || (xbt_cfg_is_default_value(_surf_cfg_set,"cpu/maxmin_selective_update")),
742 "Disabling selective update while using the lazy update mechanism is dumb!");
743 } else if (!strcmp(optim,"TI")) {
744 surf_cpu_model_init_ti();
747 xbt_die("Unsupported optimization (%s) for this model",optim);
752 surf_cpu_model_init_internal();
753 cpu_define_callbacks();
754 xbt_dynar_push(model_list, &surf_cpu_model);