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;
18 static void cpu_free(void *cpu)
20 free(((cpu_Cas01_t) cpu)->name);
24 static cpu_Cas01_t cpu_new(char *name, double power_scale,
26 tmgr_trace_t power_trace,
27 e_surf_cpu_state_t state_initial,
28 tmgr_trace_t state_trace)
30 cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
32 cpu->model = (surf_model_t) surf_cpu_model;
34 cpu->power_scale = power_scale;
35 xbt_assert0(cpu->power_scale > 0, "Power has to be >0");
36 cpu->power_current = power_initial;
39 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
41 cpu->state_current = state_initial;
44 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
47 lmm_constraint_new(cpu_maxmin_system, cpu,
48 cpu->power_current * cpu->power_scale);
50 xbt_dict_set(cpu_set, name, cpu, cpu_free);
55 static void parse_cpu(void)
58 double power_scale = 0.0;
59 double power_initial = 0.0;
60 tmgr_trace_t power_trace = NULL;
61 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
62 tmgr_trace_t state_trace = NULL;
64 name = xbt_strdup(A_surfxml_cpu_name);
65 surf_parse_get_double(&power_scale, A_surfxml_cpu_power);
66 surf_parse_get_double(&power_initial, A_surfxml_cpu_availability);
67 surf_parse_get_trace(&power_trace, A_surfxml_cpu_availability_file);
69 xbt_assert0((A_surfxml_cpu_state == A_surfxml_cpu_state_ON) ||
70 (A_surfxml_cpu_state == A_surfxml_cpu_state_OFF),
72 if (A_surfxml_cpu_state == A_surfxml_cpu_state_ON)
73 state_initial = SURF_CPU_ON;
74 if (A_surfxml_cpu_state == A_surfxml_cpu_state_OFF)
75 state_initial = SURF_CPU_OFF;
76 surf_parse_get_trace(&state_trace, A_surfxml_cpu_state_file);
78 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
82 static void parse_file(const char *file)
84 surf_parse_reset_parser();
85 ETag_surfxml_cpu_fun = parse_cpu;
86 surf_parse_open(file);
87 xbt_assert1((!surf_parse()), "Parse error in %s", file);
91 static void *name_service(const char *name)
93 return xbt_dict_get_or_null(cpu_set, name);
96 static const char *get_resource_name(void *resource_id)
98 return ((cpu_Cas01_t) resource_id)->name;
101 static int resource_used(void *resource_id)
103 return lmm_constraint_used(cpu_maxmin_system,
104 ((cpu_Cas01_t) resource_id)->constraint);
107 static int action_free(surf_action_t action)
110 if (!action->using) {
111 xbt_swag_remove(action, action->state_set);
112 if (((surf_action_cpu_Cas01_t) action)->variable)
113 lmm_variable_free(cpu_maxmin_system,
114 ((surf_action_cpu_Cas01_t) action)->variable);
121 static void action_use(surf_action_t action)
126 static void action_cancel(surf_action_t action)
128 surf_action_change_state(action, SURF_ACTION_FAILED);
132 static void action_recycle(surf_action_t action)
137 static void action_change_state(surf_action_t action,
138 e_surf_action_state_t state)
140 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
141 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
142 /* lmm_variable_disable(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
143 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
146 surf_action_change_state(action, state);
150 static double share_resources(double now)
152 s_surf_action_cpu_Cas01_t action;
153 return generic_maxmin_share_resources2(surf_cpu_model->common_public->
154 states.running_action_set,
155 xbt_swag_offset(action, variable),
156 cpu_maxmin_system, lmm_solve);
159 static void update_actions_state(double now, double delta)
161 surf_action_cpu_Cas01_t action = NULL;
162 surf_action_cpu_Cas01_t next_action = NULL;
163 xbt_swag_t running_actions =
164 surf_cpu_model->common_public->states.running_action_set;
166 xbt_swag_t failed_actions =
167 surf_cpu_model->common_public->states.failed_action_set;
170 xbt_swag_foreach_safe(action, next_action, running_actions) {
171 double_update(&(action->generic_action.remains),
172 lmm_variable_getvalue(action->variable) * delta);
173 if (action->generic_action.max_duration != NO_MAX_DURATION)
174 double_update(&(action->generic_action.max_duration), delta);
175 if ((action->generic_action.remains <= 0) &&
176 (lmm_get_variable_weight(action->variable) > 0)) {
177 action->generic_action.finish = surf_get_clock();
178 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
179 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
180 (action->generic_action.max_duration <= 0)) {
181 action->generic_action.finish = surf_get_clock();
182 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
183 } else { /* Need to check that none of the model has failed */
184 lmm_constraint_t cnst = NULL;
186 cpu_Cas01_t cpu = NULL;
189 lmm_get_cnst_from_var(cpu_maxmin_system, action->variable,
191 cpu = lmm_constraint_id(cnst);
192 if (cpu->state_current == SURF_CPU_OFF) {
193 action->generic_action.finish = surf_get_clock();
194 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
204 static void update_resource_state(void *id,
205 tmgr_trace_event_t event_type,
208 cpu_Cas01_t cpu = id;
210 if (event_type == cpu->power_event) {
211 cpu->power_current = value;
212 lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
213 cpu->power_current * cpu->power_scale);
214 } else if (event_type == cpu->state_event) {
216 cpu->state_current = SURF_CPU_ON;
218 cpu->state_current = SURF_CPU_OFF;
220 CRITICAL0("Unknown event ! \n");
227 static surf_action_t execute(void *cpu, double size)
229 surf_action_cpu_Cas01_t action = NULL;
230 cpu_Cas01_t CPU = cpu;
232 XBT_IN2("(%s,%g)", CPU->name, size);
233 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
235 action->generic_action.using = 1;
236 action->generic_action.cost = size;
237 action->generic_action.remains = size;
238 action->generic_action.priority = 1.0;
239 action->generic_action.max_duration = NO_MAX_DURATION;
240 action->generic_action.start = surf_get_clock();
241 action->generic_action.finish = -1.0;
242 action->generic_action.model_type =
243 (surf_model_t) surf_cpu_model;
244 action->suspended = 0; /* Should be useless because of the
245 calloc but it seems to help valgrind... */
247 if (CPU->state_current == SURF_CPU_ON)
248 action->generic_action.state_set =
249 surf_cpu_model->common_public->states.running_action_set;
251 action->generic_action.state_set =
252 surf_cpu_model->common_public->states.failed_action_set;
253 xbt_swag_insert(action, action->generic_action.state_set);
255 action->variable = lmm_variable_new(cpu_maxmin_system, action,
256 action->generic_action.priority,
258 lmm_expand(cpu_maxmin_system, CPU->constraint, action->variable, 1.0);
260 return (surf_action_t) action;
263 static surf_action_t action_sleep(void *cpu, double duration)
265 surf_action_cpu_Cas01_t action = NULL;
267 XBT_IN2("(%s,%g)", ((cpu_Cas01_t) cpu)->name, duration);
268 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
269 action->generic_action.max_duration = duration;
270 action->suspended = 2;
271 lmm_update_variable_weight(cpu_maxmin_system, action->variable, 0.0);
273 return (surf_action_t) action;
276 static void action_suspend(surf_action_t action)
278 XBT_IN1("(%p)", action);
279 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
280 lmm_update_variable_weight(cpu_maxmin_system,
281 ((surf_action_cpu_Cas01_t) action)->
283 ((surf_action_cpu_Cas01_t) action)->suspended = 1;
288 static void action_resume(surf_action_t action)
290 XBT_IN1("(%p)", action);
291 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
292 lmm_update_variable_weight(cpu_maxmin_system,
293 ((surf_action_cpu_Cas01_t) action)->
294 variable, action->priority);
295 ((surf_action_cpu_Cas01_t) action)->suspended = 0;
300 static int action_is_suspended(surf_action_t action)
302 return (((surf_action_cpu_Cas01_t) action)->suspended == 1);
305 static void action_set_max_duration(surf_action_t action, double duration)
307 XBT_IN2("(%p,%g)", action, duration);
308 action->max_duration = duration;
312 static void action_set_priority(surf_action_t action, double priority)
314 XBT_IN2("(%p,%g)", action, priority);
315 action->priority = priority;
316 lmm_update_variable_weight(cpu_maxmin_system, ((surf_action_cpu_Cas01_t) action)->variable, priority);
321 static e_surf_cpu_state_t get_state(void *cpu)
323 return ((cpu_Cas01_t) cpu)->state_current;
326 static double get_speed(void *cpu, double load)
328 return load * (((cpu_Cas01_t) cpu)->power_scale);
331 static double get_available_speed(void *cpu)
333 /* number between 0 and 1 */
334 return ((cpu_Cas01_t) cpu)->power_current;
337 static void finalize(void)
339 xbt_dict_free(&cpu_set);
340 xbt_swag_free(surf_cpu_model->common_public->states.ready_action_set);
341 xbt_swag_free(surf_cpu_model->common_public->states.
343 xbt_swag_free(surf_cpu_model->common_public->states.
345 xbt_swag_free(surf_cpu_model->common_public->states.done_action_set);
346 free(surf_cpu_model->common_public);
347 free(surf_cpu_model->common_private);
348 free(surf_cpu_model->extension_public);
350 free(surf_cpu_model);
351 surf_cpu_model = NULL;
354 static void surf_cpu_model_init_internal(void)
356 s_surf_action_t action;
358 surf_cpu_model = xbt_new0(s_surf_cpu_model_t, 1);
360 surf_cpu_model->common_private =
361 xbt_new0(s_surf_model_private_t, 1);
362 surf_cpu_model->common_public = xbt_new0(s_surf_model_public_t, 1);
364 surf_cpu_model->extension_public =
365 xbt_new0(s_surf_cpu_model_extension_public_t, 1);
367 surf_cpu_model->common_public->states.ready_action_set =
368 xbt_swag_new(xbt_swag_offset(action, state_hookup));
369 surf_cpu_model->common_public->states.running_action_set =
370 xbt_swag_new(xbt_swag_offset(action, state_hookup));
371 surf_cpu_model->common_public->states.failed_action_set =
372 xbt_swag_new(xbt_swag_offset(action, state_hookup));
373 surf_cpu_model->common_public->states.done_action_set =
374 xbt_swag_new(xbt_swag_offset(action, state_hookup));
376 surf_cpu_model->common_public->name_service = name_service;
377 surf_cpu_model->common_public->get_resource_name = get_resource_name;
378 surf_cpu_model->common_public->action_get_state =
379 surf_action_get_state;
380 surf_cpu_model->common_public->action_get_start_time =
381 surf_action_get_start_time;
382 surf_cpu_model->common_public->action_get_finish_time =
383 surf_action_get_finish_time;
384 surf_cpu_model->common_public->action_free = action_free;
385 surf_cpu_model->common_public->action_use = action_use;
386 surf_cpu_model->common_public->action_cancel = action_cancel;
387 surf_cpu_model->common_public->action_recycle = action_recycle;
388 surf_cpu_model->common_public->action_change_state =
390 surf_cpu_model->common_public->action_set_data = surf_action_set_data;
391 surf_cpu_model->common_public->name = "CPU";
393 surf_cpu_model->common_private->resource_used = resource_used;
394 surf_cpu_model->common_private->share_resources = share_resources;
395 surf_cpu_model->common_private->update_actions_state =
396 update_actions_state;
397 surf_cpu_model->common_private->update_resource_state =
398 update_resource_state;
399 surf_cpu_model->common_private->finalize = finalize;
401 surf_cpu_model->common_public->suspend = action_suspend;
402 surf_cpu_model->common_public->resume = action_resume;
403 surf_cpu_model->common_public->is_suspended = action_is_suspended;
404 surf_cpu_model->common_public->set_max_duration =
405 action_set_max_duration;
406 surf_cpu_model->common_public->set_priority = action_set_priority;
407 surf_cpu_model->extension_public->execute = execute;
408 surf_cpu_model->extension_public->sleep = action_sleep;
410 surf_cpu_model->extension_public->get_state = get_state;
411 surf_cpu_model->extension_public->get_speed = get_speed;
412 surf_cpu_model->extension_public->get_available_speed =
415 cpu_set = xbt_dict_new();
417 if (!cpu_maxmin_system)
418 cpu_maxmin_system = lmm_system_new();
421 /*********************************************************************/
422 /* Basic sharing model for CPU: that is where all this started... ;) */
423 /*********************************************************************/
424 /* @InProceedings{casanova01simgrid, */
425 /* author = "H. Casanova", */
426 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
427 /* and the Grid (CCGrid'01)", */
428 /* publisher = "IEEE Computer Society", */
429 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
433 /* note = "Available at */
434 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
436 void surf_cpu_model_init_Cas01(const char *filename)
440 surf_cpu_model_init_internal();
441 parse_file(filename);
442 xbt_dynar_push(model_list, &surf_cpu_model);