3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "surf_private.h"
10 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
11 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
12 #define ACTION_GET_CPU(action) ((surf_action_cpu_Cas01_im_t) action)->cpu
14 typedef struct surf_action_cpu_cas01_im {
15 s_surf_action_lmm_t generic_lmm_action;
16 s_xbt_swag_hookup_t cpu_list_hookup;
19 } s_surf_action_cpu_Cas01_im_t, *surf_action_cpu_Cas01_im_t;
21 typedef struct cpu_Cas01_im {
22 s_surf_resource_t generic_resource;
23 s_xbt_swag_hookup_t modified_cpu_hookup;
26 tmgr_trace_event_t power_event;
27 e_surf_resource_state_t state_current;
28 tmgr_trace_event_t state_event;
29 lmm_constraint_t constraint;
30 xbt_swag_t action_set;
32 } s_cpu_Cas01_im_t, *cpu_Cas01_im_t;
34 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu_im, surf,
35 "Logging specific to the SURF CPU IMPROVED module");
38 lmm_system_t cpu_im_maxmin_system = NULL;
39 static xbt_swag_t modified_cpu = NULL;
40 static xbt_heap_t action_heap = NULL;
41 extern int sg_maxmin_selective_update;
44 static xbt_swag_t running_action_set_that_does_not_need_being_checked = NULL;
46 static cpu_Cas01_im_t cpu_new(char *name, double power_peak,
48 tmgr_trace_t power_trace,
49 e_surf_resource_state_t state_initial,
50 tmgr_trace_t state_trace,
51 xbt_dict_t cpu_properties)
53 cpu_Cas01_im_t cpu = xbt_new0(s_cpu_Cas01_im_t, 1);
54 s_surf_action_cpu_Cas01_im_t action;
55 xbt_assert1(!surf_model_resource_by_name(surf_cpu_model, name),
56 "Host '%s' declared several times in the platform file", name);
57 cpu->generic_resource.model = surf_cpu_model;
58 cpu->generic_resource.name = name;
59 cpu->generic_resource.properties = cpu_properties;
60 cpu->power_peak = power_peak;
61 xbt_assert0(cpu->power_peak > 0, "Power has to be >0");
62 cpu->power_scale = power_scale;
65 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
67 cpu->state_current = state_initial;
70 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
73 lmm_constraint_new(cpu_im_maxmin_system, cpu,
74 cpu->power_scale * cpu->power_peak);
76 xbt_dict_set(surf_model_resource_set(surf_cpu_model), name, cpu,
78 cpu->action_set = xbt_swag_new(xbt_swag_offset(action, cpu_list_hookup));
84 static void parse_cpu_init(void)
86 double power_peak = 0.0;
87 double power_scale = 0.0;
88 tmgr_trace_t power_trace = NULL;
89 e_surf_resource_state_t state_initial = SURF_RESOURCE_OFF;
90 tmgr_trace_t state_trace = NULL;
92 power_peak = get_cpu_power(A_surfxml_host_power);
93 surf_parse_get_double(&power_scale, A_surfxml_host_availability);
94 power_trace = tmgr_trace_new(A_surfxml_host_availability_file);
96 xbt_assert0((A_surfxml_host_state == A_surfxml_host_state_ON) ||
97 (A_surfxml_host_state == A_surfxml_host_state_OFF),
99 if (A_surfxml_host_state == A_surfxml_host_state_ON)
100 state_initial = SURF_RESOURCE_ON;
101 if (A_surfxml_host_state == A_surfxml_host_state_OFF)
102 state_initial = SURF_RESOURCE_OFF;
103 state_trace = tmgr_trace_new(A_surfxml_host_state_file);
105 current_property_set = xbt_dict_new();
106 cpu_new(xbt_strdup(A_surfxml_host_id), power_peak, power_scale,
107 power_trace, state_initial, state_trace, current_property_set);
111 static void add_traces_cpu(void)
113 xbt_dict_cursor_t cursor = NULL;
114 char *trace_name, *elm;
116 static int called = 0;
123 /* connect all traces relative to hosts */
124 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
125 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
126 cpu_Cas01_im_t host = surf_model_resource_by_name(surf_cpu_model, elm);
128 xbt_assert1(host, "Host %s undefined", elm);
129 xbt_assert1(trace, "Trace %s undefined", trace_name);
131 host->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, host);
134 xbt_dict_foreach(trace_connect_list_power, 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);
138 xbt_assert1(host, "Host %s undefined", elm);
139 xbt_assert1(trace, "Trace %s undefined", trace_name);
141 host->power_event = tmgr_history_add_trace(history, trace, 0.0, 0, host);
145 static void define_callbacks(const char *file)
147 surf_parse_reset_parser();
148 surfxml_add_callback(STag_surfxml_host_cb_list, parse_cpu_init);
149 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces_cpu);
152 static int resource_used(void *resource_id)
154 return lmm_constraint_used(cpu_im_maxmin_system,
155 ((cpu_Cas01_im_t) resource_id)->constraint);
158 static int action_unref(surf_action_t action)
161 if (!action->refcount) {
162 xbt_swag_remove(action, action->state_set);
163 if (((surf_action_lmm_t) action)->variable)
164 lmm_variable_free(cpu_im_maxmin_system,
165 ((surf_action_lmm_t) action)->variable);
166 /* remove from heap */
167 xbt_heap_remove(action_heap,
168 ((surf_action_cpu_Cas01_im_t) action)->index_heap);
169 xbt_swag_remove(action,
170 ((cpu_Cas01_im_t) ACTION_GET_CPU(action))->action_set);
171 xbt_swag_insert(ACTION_GET_CPU(action), modified_cpu);
178 static void action_cancel(surf_action_t action)
180 surf_action_state_set(action, SURF_ACTION_FAILED);
181 xbt_heap_remove(action_heap,
182 ((surf_action_cpu_Cas01_im_t) action)->index_heap);
186 static void cpu_action_state_set(surf_action_t action,
187 e_surf_action_state_t state)
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; */
195 surf_action_state_set(action, state);
199 static void cpu_update_remains(cpu_Cas01_im_t cpu, double now)
201 surf_action_cpu_Cas01_im_t action;
203 xbt_swag_foreach(action, cpu->action_set) {
204 if (GENERIC_ACTION(action).remains > 0) {
205 double_update(&(GENERIC_ACTION(action).remains),
206 lmm_variable_getvalue(GENERIC_LMM_ACTION
207 (action).variable) * (now -
210 DEBUG2("Update action(%p) remains %lf", action,
211 GENERIC_ACTION(action).remains);
214 cpu->last_update = now;
217 static double share_resources(double now)
219 surf_action_cpu_Cas01_im_t action;
222 cpu_Cas01_im_t cpu, cpu_next;
224 xbt_swag_foreach_safe(cpu, cpu_next, modified_cpu) {
225 cpu_update_remains(cpu, now);
226 xbt_swag_remove(cpu, modified_cpu);
229 lmm_solve(cpu_im_maxmin_system);
231 while ((action = lmm_extract_modified_variable(cpu_im_maxmin_system))) {
233 value = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
235 if (GENERIC_ACTION(action).remains > 0)
236 value = GENERIC_ACTION(action).remains / value;
243 if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
245 || GENERIC_ACTION(action).start +
246 GENERIC_ACTION(action).max_duration < min))
248 GENERIC_ACTION(action).start + GENERIC_ACTION(action).max_duration;
250 DEBUG4("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
251 GENERIC_ACTION(action).start, now + value,
252 GENERIC_ACTION(action).max_duration);
254 if (action->index_heap >= 0) {
255 surf_action_cpu_Cas01_im_t heap_act =
256 xbt_heap_remove(action_heap, action->index_heap);
257 if (heap_act != action)
261 xbt_heap_push(action_heap, action, min);
262 DEBUG2("Insert at heap action(%p) min %lf", action, min);
265 return xbt_heap_size(action_heap) >
266 0 ? xbt_heap_maxkey(action_heap) - now : -1;
269 static void update_actions_state(double now, double delta)
271 surf_action_cpu_Cas01_im_t action;
273 while ((xbt_heap_size(action_heap) > 0)
274 && (xbt_heap_maxkey(action_heap) <= now)) {
275 action = xbt_heap_pop(action_heap);
276 DEBUG1("Action %p: finish", action);
277 GENERIC_ACTION(action).finish = surf_get_clock();
278 /* set the remains to 0 due to precision problems when updating the remaining amount */
279 GENERIC_ACTION(action).remains = 0;
280 cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
281 xbt_swag_insert(action->cpu, modified_cpu);
286 static void update_resource_state(void *id,
287 tmgr_trace_event_t event_type,
288 double value, double date)
290 cpu_Cas01_im_t cpu = id;
292 if (event_type == cpu->power_event) {
293 cpu->power_scale = value;
294 lmm_update_constraint_bound(cpu_im_maxmin_system, cpu->constraint,
295 cpu->power_scale * cpu->power_peak);
296 xbt_swag_insert(cpu, modified_cpu);
297 if (tmgr_trace_event_free(event_type))
298 cpu->power_event = NULL;
299 } else if (event_type == cpu->state_event) {
301 cpu->state_current = SURF_RESOURCE_ON;
303 lmm_constraint_t cnst = cpu->constraint;
304 lmm_variable_t var = NULL;
305 lmm_element_t elem = NULL;
307 cpu->state_current = SURF_RESOURCE_OFF;
309 while ((var = lmm_get_var_from_cnst(cpu_im_maxmin_system, cnst, &elem))) {
310 surf_action_t action = lmm_variable_id(var);
312 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
313 surf_action_state_get(action) == SURF_ACTION_READY ||
314 surf_action_state_get(action) == SURF_ACTION_NOT_IN_THE_SYSTEM) {
315 action->finish = date;
316 cpu_action_state_set(action, SURF_ACTION_FAILED);
320 if (tmgr_trace_event_free(event_type))
321 cpu->state_event = NULL;
323 CRITICAL0("Unknown event ! \n");
330 static surf_action_t execute(void *cpu, double size)
332 surf_action_cpu_Cas01_im_t action = NULL;
333 cpu_Cas01_im_t CPU = cpu;
335 XBT_IN2("(%s,%g)", surf_resource_name(CPU), size);
337 surf_action_new(sizeof(s_surf_action_cpu_Cas01_im_t), size,
338 surf_cpu_model, CPU->state_current != SURF_RESOURCE_ON);
340 GENERIC_LMM_ACTION(action).suspended = 0; /* Should be useless because of the
341 calloc but it seems to help valgrind... */
343 GENERIC_LMM_ACTION(action).variable =
344 lmm_variable_new(cpu_im_maxmin_system, action,
345 GENERIC_ACTION(action).priority, -1.0, 1);
346 action->index_heap = -1;
348 xbt_swag_insert(CPU, modified_cpu);
349 xbt_swag_insert(action, CPU->action_set);
350 lmm_expand(cpu_im_maxmin_system, CPU->constraint,
351 GENERIC_LMM_ACTION(action).variable, 1.0);
353 return (surf_action_t) action;
356 static surf_action_t action_sleep(void *cpu, double duration)
358 surf_action_cpu_Cas01_im_t action = NULL;
361 duration = MAX(duration, MAXMIN_PRECISION);
363 XBT_IN2("(%s,%g)", surf_resource_name(cpu), duration);
364 action = (surf_action_cpu_Cas01_im_t) execute(cpu, 1.0);
365 GENERIC_ACTION(action).max_duration = duration;
366 GENERIC_LMM_ACTION(action).suspended = 2;
367 if (duration == NO_MAX_DURATION) {
368 /* Move to the *end* of the corresponding action set. This convention
369 is used to speed up update_resource_state */
370 xbt_swag_remove(action, ((surf_action_t) action)->state_set);
371 ((surf_action_t) action)->state_set =
372 running_action_set_that_does_not_need_being_checked;
373 xbt_swag_insert(action, ((surf_action_t) action)->state_set);
376 lmm_update_variable_weight(cpu_im_maxmin_system,
377 GENERIC_LMM_ACTION(action).variable, 0.0);
378 xbt_swag_insert(cpu, modified_cpu);
380 return (surf_action_t) action;
383 static void action_suspend(surf_action_t action)
385 XBT_IN1("(%p)", action);
386 if (((surf_action_lmm_t) action)->suspended != 2) {
387 lmm_update_variable_weight(cpu_im_maxmin_system,
388 ((surf_action_lmm_t) action)->variable, 0.0);
389 ((surf_action_lmm_t) action)->suspended = 1;
390 xbt_swag_insert(ACTION_GET_CPU(action), modified_cpu);
395 static void action_resume(surf_action_t action)
397 XBT_IN1("(%p)", action);
398 if (((surf_action_lmm_t) action)->suspended != 2) {
399 lmm_update_variable_weight(cpu_im_maxmin_system,
400 ((surf_action_lmm_t) action)->variable,
402 ((surf_action_lmm_t) action)->suspended = 0;
403 xbt_swag_insert(ACTION_GET_CPU(action), modified_cpu);
408 static int action_is_suspended(surf_action_t action)
410 return (((surf_action_lmm_t) action)->suspended == 1);
413 static void action_set_max_duration(surf_action_t action, double duration)
415 surf_action_cpu_Cas01_im_t ACT = (surf_action_cpu_Cas01_im_t) action;
418 XBT_IN2("(%p,%g)", action, duration);
420 action->max_duration = duration;
424 (action->start + action->max_duration) <
425 action->finish ? (action->start +
426 action->max_duration) : action->finish;
428 min_finish = action->finish;
430 /* add in action heap */
431 if (ACT->index_heap >= 0) {
432 surf_action_cpu_Cas01_im_t heap_act =
433 xbt_heap_remove(action_heap, ACT->index_heap);
437 xbt_heap_push(action_heap, ACT, min_finish);
441 static void action_set_priority(surf_action_t action, double priority)
443 XBT_IN2("(%p,%g)", action, priority);
444 action->priority = priority;
445 lmm_update_variable_weight(cpu_im_maxmin_system,
446 ((surf_action_lmm_t) action)->variable,
449 xbt_swag_insert(ACTION_GET_CPU(action), modified_cpu);
453 static double action_get_remains(surf_action_t action)
455 XBT_IN1("(%p)", action);
456 cpu_update_remains(ACTION_GET_CPU(action), surf_get_clock());
457 return action->remains;
461 static e_surf_resource_state_t get_state(void *cpu)
463 return ((cpu_Cas01_im_t) cpu)->state_current;
466 static double get_speed(void *cpu, double load)
468 return load * (((cpu_Cas01_im_t) cpu)->power_peak);
471 static double get_available_speed(void *cpu)
473 /* number between 0 and 1 */
474 return ((cpu_Cas01_im_t) cpu)->power_scale;
477 static void action_update_index_heap(void *action, int i)
479 ((surf_action_cpu_Cas01_im_t) action)->index_heap = i;
482 static void finalize(void)
485 xbt_dict_cursor_t cursor;
487 xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, key, cpu) {
488 cpu_Cas01_im_t CPU = cpu;
489 xbt_swag_free(CPU->action_set);
492 lmm_system_free(cpu_im_maxmin_system);
493 cpu_im_maxmin_system = NULL;
495 surf_model_exit(surf_cpu_model);
496 surf_cpu_model = NULL;
498 xbt_swag_free(running_action_set_that_does_not_need_being_checked);
499 running_action_set_that_does_not_need_being_checked = NULL;
500 xbt_heap_free(action_heap);
501 xbt_swag_free(modified_cpu);
504 static void surf_cpu_model_init_internal(void)
506 s_surf_action_t action;
507 s_cpu_Cas01_im_t cpu;
509 surf_cpu_model = surf_model_init();
511 running_action_set_that_does_not_need_being_checked =
512 xbt_swag_new(xbt_swag_offset(action, state_hookup));
514 surf_cpu_model->name = "CPU_IM";
516 surf_cpu_model->action_unref = action_unref;
517 surf_cpu_model->action_cancel = action_cancel;
518 surf_cpu_model->action_state_set = cpu_action_state_set;
520 surf_cpu_model->model_private->resource_used = resource_used;
521 surf_cpu_model->model_private->share_resources = share_resources;
522 surf_cpu_model->model_private->update_actions_state = update_actions_state;
523 surf_cpu_model->model_private->update_resource_state =
524 update_resource_state;
525 surf_cpu_model->model_private->finalize = finalize;
527 surf_cpu_model->suspend = action_suspend;
528 surf_cpu_model->resume = action_resume;
529 surf_cpu_model->is_suspended = action_is_suspended;
530 surf_cpu_model->set_max_duration = action_set_max_duration;
531 surf_cpu_model->set_priority = action_set_priority;
532 surf_cpu_model->get_remains = action_get_remains;
534 surf_cpu_model->extension.cpu.execute = execute;
535 surf_cpu_model->extension.cpu.sleep = action_sleep;
537 surf_cpu_model->extension.cpu.get_state = get_state;
538 surf_cpu_model->extension.cpu.get_speed = get_speed;
539 surf_cpu_model->extension.cpu.get_available_speed = get_available_speed;
541 if (!cpu_im_maxmin_system) {
542 sg_maxmin_selective_update = 1;
543 cpu_im_maxmin_system = lmm_system_new();
545 action_heap = xbt_heap_new(8, NULL);
546 xbt_heap_set_update_callback(action_heap, action_update_index_heap);
547 modified_cpu = xbt_swag_new(xbt_swag_offset(cpu, modified_cpu_hookup));
550 /*********************************************************************/
551 /* Basic sharing model for CPU: that is where all this started... ;) */
552 /*********************************************************************/
553 /* @InProceedings{casanova01simgrid, */
554 /* author = "H. Casanova", */
555 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
556 /* and the Grid (CCGrid'01)", */
557 /* publisher = "IEEE Computer Society", */
558 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
562 /* note = "Available at */
563 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
565 void surf_cpu_model_init_Cas01_im(const char *filename)
569 surf_cpu_model_init_internal();
570 define_callbacks(filename);
571 xbt_dynar_push(model_list, &surf_cpu_model);