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 "cpu_private.h"
10 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf,
11 "Logging specific to the SURF CPU module");
13 surf_cpu_model_t surf_cpu_model = NULL;
14 lmm_system_t cpu_maxmin_system = NULL;
16 xbt_dict_t cpu_set = NULL;
17 static xbt_swag_t running_action_set_that_does_not_need_being_checked = NULL;
19 static void cpu_free(void *cpu)
21 free(((cpu_Cas01_t) cpu)->name);
22 xbt_dict_free(&(((cpu_Cas01_t)cpu)->properties));
26 static cpu_Cas01_t cpu_new(char *name, double power_scale,
28 tmgr_trace_t power_trace,
29 e_surf_cpu_state_t state_initial,
30 tmgr_trace_t state_trace,
31 xbt_dict_t cpu_properties)
33 cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
34 xbt_assert1(!xbt_dict_get_or_null(cpu_set, name),
35 "Host '%s' declared several times in the platform file",name);
37 cpu->model = (surf_model_t) surf_cpu_model;
39 cpu->power_scale = power_scale;
40 xbt_assert0(cpu->power_scale > 0, "Power has to be >0");
41 cpu->power_current = power_initial;
44 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
46 cpu->state_current = state_initial;
49 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
52 lmm_constraint_new(cpu_maxmin_system, cpu,
53 cpu->power_current * cpu->power_scale);
55 /*add the property set*/
56 cpu->properties = cpu_properties;
58 current_property_set = cpu_properties;
60 xbt_dict_set(cpu_set, name, cpu, cpu_free);
66 static void parse_cpu_init(void)
68 double power_scale = 0.0;
69 double power_initial = 0.0;
70 tmgr_trace_t power_trace = NULL;
71 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
72 tmgr_trace_t state_trace = NULL;
74 power_scale = get_cpu_power(A_surfxml_host_power);
75 surf_parse_get_double(&power_initial, A_surfxml_host_availability);
76 surf_parse_get_trace(&power_trace, A_surfxml_host_availability_file);
78 xbt_assert0((A_surfxml_host_state == A_surfxml_host_state_ON) ||
79 (A_surfxml_host_state == A_surfxml_host_state_OFF),
81 if (A_surfxml_host_state == A_surfxml_host_state_ON)
82 state_initial = SURF_CPU_ON;
83 if (A_surfxml_host_state == A_surfxml_host_state_OFF)
84 state_initial = SURF_CPU_OFF;
85 surf_parse_get_trace(&state_trace, A_surfxml_host_state_file);
87 current_property_set = xbt_dict_new();
88 cpu_new(xbt_strdup(A_surfxml_host_id), power_scale, power_initial, power_trace, state_initial,
89 state_trace, current_property_set);
93 static void add_traces_cpu(void) {
94 xbt_dict_cursor_t cursor=NULL;
95 char *trace_name,*elm;
97 static int called = 0;
103 /* connect all traces relative to hosts */
104 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
105 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
106 cpu_Cas01_t host = xbt_dict_get_or_null(cpu_set, elm);
108 xbt_assert1(host, "Host %s undefined", elm);
109 xbt_assert1(trace, "Trace %s undefined", trace_name);
111 host->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, host);
114 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
115 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
116 cpu_Cas01_t host = xbt_dict_get_or_null(cpu_set, elm);
118 xbt_assert1(host, "Host %s undefined", elm);
119 xbt_assert1(trace, "Trace %s undefined", trace_name);
121 host->power_event = tmgr_history_add_trace(history, trace, 0.0, 0, host);
125 static void define_callbacks(const char *file)
127 surf_parse_reset_parser();
128 surfxml_add_callback(STag_surfxml_host_cb_list, parse_cpu_init);
131 static void *name_service(const char *name)
133 return xbt_dict_get_or_null(cpu_set, name);
136 static const char *get_resource_name(void *resource_id)
138 return ((cpu_Cas01_t) resource_id)->name;
141 static int resource_used(void *resource_id)
143 return lmm_constraint_used(cpu_maxmin_system,
144 ((cpu_Cas01_t) resource_id)->constraint);
147 static int action_free(surf_action_t action)
150 if (!action->using) {
151 xbt_swag_remove(action, action->state_set);
152 if (((surf_action_cpu_Cas01_t) action)->variable)
153 lmm_variable_free(cpu_maxmin_system,
154 ((surf_action_cpu_Cas01_t) action)->variable);
161 static void action_use(surf_action_t action)
166 static void action_cancel(surf_action_t action)
168 surf_action_change_state(action, SURF_ACTION_FAILED);
172 static void action_recycle(surf_action_t action)
177 static void action_change_state(surf_action_t action,
178 e_surf_action_state_t state)
180 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
181 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
182 /* lmm_variable_disable(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
183 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
186 surf_action_change_state(action, state);
190 static double share_resources(double now)
192 s_surf_action_cpu_Cas01_t action;
193 return generic_maxmin_share_resources(surf_cpu_model->common_public->
194 states.running_action_set,
195 xbt_swag_offset(action, variable),
196 cpu_maxmin_system, lmm_solve);
199 static void update_actions_state(double now, double delta)
201 surf_action_cpu_Cas01_t action = NULL;
202 surf_action_cpu_Cas01_t next_action = NULL;
203 xbt_swag_t running_actions =
204 surf_cpu_model->common_public->states.running_action_set;
206 xbt_swag_t failed_actions =
207 surf_cpu_model->common_public->states.failed_action_set;
210 xbt_swag_foreach_safe(action, next_action, running_actions) {
211 double_update(&(action->generic_action.remains),
212 lmm_variable_getvalue(action->variable) * delta);
213 if (action->generic_action.max_duration != NO_MAX_DURATION)
214 double_update(&(action->generic_action.max_duration), delta);
215 if ((action->generic_action.remains <= 0) &&
216 (lmm_get_variable_weight(action->variable) > 0)) {
217 action->generic_action.finish = surf_get_clock();
218 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
219 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
220 (action->generic_action.max_duration <= 0)) {
221 action->generic_action.finish = surf_get_clock();
222 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
229 static void update_resource_state(void *id,
230 tmgr_trace_event_t event_type,
231 double value, double date)
233 cpu_Cas01_t cpu = id;
235 if (event_type == cpu->power_event) {
236 cpu->power_current = value;
237 lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
238 cpu->power_current * cpu->power_scale);
239 } else if (event_type == cpu->state_event) {
241 cpu->state_current = SURF_CPU_ON;
243 lmm_constraint_t cnst = cpu->constraint;
244 lmm_variable_t var = NULL;
245 lmm_element_t elem = NULL;
247 cpu->state_current = SURF_CPU_OFF;
249 while((var = lmm_get_var_from_cnst(cpu_maxmin_system,cnst,&elem))) {
250 surf_action_t action = lmm_variable_id(var) ;
252 if(surf_action_get_state(action)==SURF_ACTION_RUNNING ||
253 surf_action_get_state(action)==SURF_ACTION_READY ||
254 surf_action_get_state(action)==SURF_ACTION_NOT_IN_THE_SYSTEM) {
255 action->finish = date;
256 action_change_state( action, SURF_ACTION_FAILED);
261 CRITICAL0("Unknown event ! \n");
268 static surf_action_t execute(void *cpu, double size)
270 surf_action_cpu_Cas01_t action = NULL;
271 cpu_Cas01_t CPU = cpu;
273 XBT_IN2("(%s,%g)", CPU->name, size);
274 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
276 action->generic_action.using = 1;
277 action->generic_action.cost = size;
278 action->generic_action.remains = size;
279 action->generic_action.priority = 1.0;
280 action->generic_action.max_duration = NO_MAX_DURATION;
281 action->generic_action.start = surf_get_clock();
282 action->generic_action.finish = -1.0;
283 action->generic_action.model_type =
284 (surf_model_t) surf_cpu_model;
285 action->suspended = 0; /* Should be useless because of the
286 calloc but it seems to help valgrind... */
288 if (CPU->state_current == SURF_CPU_ON)
289 action->generic_action.state_set =
290 surf_cpu_model->common_public->states.running_action_set;
292 action->generic_action.state_set =
293 surf_cpu_model->common_public->states.failed_action_set;
295 xbt_swag_insert(action, action->generic_action.state_set);
297 action->variable = lmm_variable_new(cpu_maxmin_system, action,
298 action->generic_action.priority,
300 lmm_expand(cpu_maxmin_system, CPU->constraint, action->variable, 1.0);
302 return (surf_action_t) action;
305 static surf_action_t action_sleep(void *cpu, double duration)
307 surf_action_cpu_Cas01_t action = NULL;
310 duration=MAX(duration,MAXMIN_PRECISION);
312 XBT_IN2("(%s,%g)", ((cpu_Cas01_t) cpu)->name, duration);
313 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
314 action->generic_action.max_duration = duration;
315 action->suspended = 2;
316 if(duration == NO_MAX_DURATION) {
317 /* Move to the *end* of the corresponding action set. This convention
318 is used to speed up update_resource_state */
319 xbt_swag_remove(action, ((surf_action_t)action)->state_set);
320 ((surf_action_t)action)->state_set =running_action_set_that_does_not_need_being_checked;
321 xbt_swag_insert(action, ((surf_action_t)action)->state_set);
324 lmm_update_variable_weight(cpu_maxmin_system, action->variable, 0.0);
326 return (surf_action_t) action;
329 static void action_suspend(surf_action_t action)
331 XBT_IN1("(%p)", action);
332 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
333 lmm_update_variable_weight(cpu_maxmin_system,
334 ((surf_action_cpu_Cas01_t) action)->
336 ((surf_action_cpu_Cas01_t) action)->suspended = 1;
341 static void action_resume(surf_action_t action)
343 XBT_IN1("(%p)", action);
344 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
345 lmm_update_variable_weight(cpu_maxmin_system,
346 ((surf_action_cpu_Cas01_t) action)->
347 variable, action->priority);
348 ((surf_action_cpu_Cas01_t) action)->suspended = 0;
353 static int action_is_suspended(surf_action_t action)
355 return (((surf_action_cpu_Cas01_t) action)->suspended == 1);
358 static void action_set_max_duration(surf_action_t action, double duration)
360 XBT_IN2("(%p,%g)", action, duration);
361 action->max_duration = duration;
365 static void action_set_priority(surf_action_t action, double priority)
367 XBT_IN2("(%p,%g)", action, priority);
368 action->priority = priority;
369 lmm_update_variable_weight(cpu_maxmin_system, ((surf_action_cpu_Cas01_t) action)->variable, priority);
374 static e_surf_cpu_state_t get_state(void *cpu)
376 return ((cpu_Cas01_t) cpu)->state_current;
379 static double get_speed(void *cpu, double load)
381 return load * (((cpu_Cas01_t) cpu)->power_scale);
384 static double get_available_speed(void *cpu)
386 /* number between 0 and 1 */
387 return ((cpu_Cas01_t) cpu)->power_current;
390 static xbt_dict_t get_properties(void *cpu)
392 return ((cpu_Cas01_t) cpu)->properties;
395 static void finalize(void)
397 xbt_dict_free(&cpu_set);
398 lmm_system_free(cpu_maxmin_system);
399 cpu_maxmin_system = NULL;
400 xbt_swag_free(surf_cpu_model->common_public->states.ready_action_set);
401 xbt_swag_free(surf_cpu_model->common_public->states.
403 xbt_swag_free(surf_cpu_model->common_public->states.
405 xbt_swag_free(surf_cpu_model->common_public->states.done_action_set);
406 xbt_swag_free(running_action_set_that_does_not_need_being_checked);
407 running_action_set_that_does_not_need_being_checked = NULL;
408 free(surf_cpu_model->common_public);
409 free(surf_cpu_model->common_private);
410 free(surf_cpu_model->extension_public);
412 free(surf_cpu_model);
413 surf_cpu_model = NULL;
416 static void surf_cpu_model_init_internal(void)
418 s_surf_action_t action;
420 surf_cpu_model = xbt_new0(s_surf_cpu_model_t, 1);
422 surf_cpu_model->common_private =
423 xbt_new0(s_surf_model_private_t, 1);
424 surf_cpu_model->common_public = xbt_new0(s_surf_model_public_t, 1);
426 surf_cpu_model->extension_public =
427 xbt_new0(s_surf_cpu_model_extension_public_t, 1);
429 surf_cpu_model->common_public->states.ready_action_set =
430 xbt_swag_new(xbt_swag_offset(action, state_hookup));
431 surf_cpu_model->common_public->states.running_action_set =
432 xbt_swag_new(xbt_swag_offset(action, state_hookup));
433 surf_cpu_model->common_public->states.failed_action_set =
434 xbt_swag_new(xbt_swag_offset(action, state_hookup));
435 surf_cpu_model->common_public->states.done_action_set =
436 xbt_swag_new(xbt_swag_offset(action, state_hookup));
438 running_action_set_that_does_not_need_being_checked =
439 xbt_swag_new(xbt_swag_offset(action, state_hookup));
441 surf_cpu_model->common_public->name_service = name_service;
442 surf_cpu_model->common_public->get_resource_name = get_resource_name;
443 surf_cpu_model->common_public->action_get_state =
444 surf_action_get_state;
445 surf_cpu_model->common_public->action_get_start_time =
446 surf_action_get_start_time;
447 surf_cpu_model->common_public->action_get_finish_time =
448 surf_action_get_finish_time;
449 surf_cpu_model->common_public->action_free = action_free;
450 surf_cpu_model->common_public->action_use = action_use;
451 surf_cpu_model->common_public->action_cancel = action_cancel;
452 surf_cpu_model->common_public->action_recycle = action_recycle;
453 surf_cpu_model->common_public->action_change_state =
455 surf_cpu_model->common_public->action_set_data = surf_action_set_data;
456 surf_cpu_model->common_public->name = "CPU";
458 surf_cpu_model->common_private->resource_used = resource_used;
459 surf_cpu_model->common_private->share_resources = share_resources;
460 surf_cpu_model->common_private->update_actions_state =
461 update_actions_state;
462 surf_cpu_model->common_private->update_resource_state =
463 update_resource_state;
464 surf_cpu_model->common_private->finalize = finalize;
466 surf_cpu_model->common_public->suspend = action_suspend;
467 surf_cpu_model->common_public->resume = action_resume;
468 surf_cpu_model->common_public->is_suspended = action_is_suspended;
469 surf_cpu_model->common_public->set_max_duration =
470 action_set_max_duration;
471 surf_cpu_model->common_public->set_priority = action_set_priority;
472 surf_cpu_model->extension_public->execute = execute;
473 surf_cpu_model->extension_public->sleep = action_sleep;
475 surf_cpu_model->extension_public->get_state = get_state;
476 surf_cpu_model->extension_public->get_speed = get_speed;
477 surf_cpu_model->extension_public->get_available_speed =
479 /*manage the properties of the cpu*/
480 surf_cpu_model->common_public->get_properties = get_properties;
482 if(!cpu_set) cpu_set = xbt_dict_new();
483 if (!cpu_maxmin_system) cpu_maxmin_system = lmm_system_new();
486 /*********************************************************************/
487 /* Basic sharing model for CPU: that is where all this started... ;) */
488 /*********************************************************************/
489 /* @InProceedings{casanova01simgrid, */
490 /* author = "H. Casanova", */
491 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
492 /* and the Grid (CCGrid'01)", */
493 /* publisher = "IEEE Computer Society", */
494 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
498 /* note = "Available at */
499 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
501 void surf_cpu_model_init_Cas01(const char *filename)
505 surf_cpu_model_init_internal();
506 define_callbacks(filename);
507 xbt_dynar_push(model_list, &surf_cpu_model);