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_resource_t surf_cpu_resource = NULL;
15 xbt_dict_t cpu_set = NULL;
17 static void cpu_free(void *cpu)
19 free(((cpu_Cas01_t)cpu)->name);
23 static cpu_Cas01_t cpu_new(char *name, double power_scale,
25 tmgr_trace_t power_trace,
26 e_surf_cpu_state_t state_initial,
27 tmgr_trace_t state_trace)
29 cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
31 cpu->resource = (surf_resource_t) surf_cpu_resource;
33 cpu->power_scale = power_scale;
34 xbt_assert0(cpu->power_scale>0,"Power has to be >0");
35 cpu->power_current = power_initial;
38 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
40 cpu->state_current = state_initial;
43 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
46 lmm_constraint_new(maxmin_system, cpu,
47 cpu->power_current * cpu->power_scale);
49 xbt_dict_set(cpu_set, name, cpu, cpu_free);
54 static void parse_cpu(void)
57 double power_scale = 0.0;
58 double power_initial = 0.0;
59 tmgr_trace_t power_trace = NULL;
60 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
61 tmgr_trace_t state_trace = NULL;
63 name = xbt_strdup(A_surfxml_cpu_name);
64 surf_parse_get_double(&power_scale,A_surfxml_cpu_power);
65 surf_parse_get_double(&power_initial,A_surfxml_cpu_availability);
66 surf_parse_get_trace(&power_trace,A_surfxml_cpu_availability_file);
68 xbt_assert0((A_surfxml_cpu_state==A_surfxml_cpu_state_ON)||
69 (A_surfxml_cpu_state==A_surfxml_cpu_state_OFF),
71 if (A_surfxml_cpu_state==A_surfxml_cpu_state_ON) state_initial = SURF_CPU_ON;
72 if (A_surfxml_cpu_state==A_surfxml_cpu_state_OFF) state_initial = SURF_CPU_OFF;
73 surf_parse_get_trace(&state_trace,A_surfxml_cpu_state_file);
75 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
79 static void parse_file(const char *file)
81 surf_parse_reset_parser();
82 ETag_surfxml_cpu_fun=parse_cpu;
83 surf_parse_open(file);
84 xbt_assert1((!surf_parse()),"Parse error in %s",file);
88 static void *name_service(const char *name)
90 return xbt_dict_get_or_null(cpu_set, name);
93 static const char *get_resource_name(void *resource_id)
95 return ((cpu_Cas01_t) resource_id)->name;
98 static int resource_used(void *resource_id)
100 return lmm_constraint_used(maxmin_system,
101 ((cpu_Cas01_t) resource_id)->constraint);
104 static int action_free(surf_action_t action)
108 xbt_swag_remove(action, action->state_set);
109 if(((surf_action_cpu_Cas01_t)action)->variable)
110 lmm_variable_free(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
117 static void action_use(surf_action_t action)
122 static void action_cancel(surf_action_t action)
124 surf_action_change_state(action, SURF_ACTION_FAILED);
128 static void action_recycle(surf_action_t action)
133 static void action_change_state(surf_action_t action,
134 e_surf_action_state_t state)
136 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
137 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
138 /* lmm_variable_disable(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
139 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
142 surf_action_change_state(action, state);
146 static double share_resources(double now)
148 s_surf_action_cpu_Cas01_t action;
149 return generic_maxmin_share_resources(surf_cpu_resource->common_public->
150 states.running_action_set,
151 xbt_swag_offset(action, variable));
154 static void update_actions_state(double now, double delta)
156 surf_action_cpu_Cas01_t action = NULL;
157 surf_action_cpu_Cas01_t next_action = NULL;
158 xbt_swag_t running_actions =
159 surf_cpu_resource->common_public->states.running_action_set;
161 xbt_swag_t failed_actions =
162 surf_cpu_resource->common_public->states.failed_action_set;
165 xbt_swag_foreach_safe(action, next_action, running_actions) {
166 double_update(&(action->generic_action.remains),
167 lmm_variable_getvalue(action->variable) * delta);
168 if (action->generic_action.max_duration != NO_MAX_DURATION)
169 double_update(&(action->generic_action.max_duration), delta);
170 if ((action->generic_action.remains <= 0) &&
171 (lmm_get_variable_weight(action->variable)>0)) {
172 action->generic_action.finish = surf_get_clock();
173 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
174 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
175 (action->generic_action.max_duration <= 0)) {
176 action->generic_action.finish = surf_get_clock();
177 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
178 } else { /* Need to check that none of the resource has failed */
179 lmm_constraint_t cnst = NULL;
181 cpu_Cas01_t cpu = NULL;
184 lmm_get_cnst_from_var(maxmin_system, action->variable,
186 cpu = lmm_constraint_id(cnst);
187 if (cpu->state_current == SURF_CPU_OFF) {
188 action->generic_action.finish = surf_get_clock();
189 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
199 static void update_resource_state(void *id,
200 tmgr_trace_event_t event_type,
203 cpu_Cas01_t cpu = id;
205 if (event_type == cpu->power_event) {
206 cpu->power_current = value;
207 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
208 cpu->power_current * cpu->power_scale);
209 } else if (event_type == cpu->state_event) {
211 cpu->state_current = SURF_CPU_ON;
213 cpu->state_current = SURF_CPU_OFF;
215 CRITICAL0("Unknown event ! \n");
222 static surf_action_t execute(void *cpu, double size)
224 surf_action_cpu_Cas01_t action = NULL;
225 cpu_Cas01_t CPU = cpu;
227 XBT_IN2("(%s,%g)",CPU->name,size);
228 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
230 action->generic_action.using = 1;
231 action->generic_action.cost = size;
232 action->generic_action.remains = size;
233 action->generic_action.priority = 1.0;
234 action->generic_action.max_duration = NO_MAX_DURATION;
235 action->generic_action.start = surf_get_clock();
236 action->generic_action.finish = -1.0;
237 action->generic_action.resource_type =
238 (surf_resource_t) surf_cpu_resource;
239 action->suspended = 0; /* Should be useless because of the
240 calloc but it seems to help valgrind... */
242 if (CPU->state_current == SURF_CPU_ON)
243 action->generic_action.state_set =
244 surf_cpu_resource->common_public->states.running_action_set;
246 action->generic_action.state_set =
247 surf_cpu_resource->common_public->states.failed_action_set;
248 xbt_swag_insert(action, action->generic_action.state_set);
250 action->variable = lmm_variable_new(maxmin_system, action,
251 action->generic_action.priority, -1.0, 1);
252 lmm_expand(maxmin_system, CPU->constraint, action->variable,
255 return (surf_action_t) action;
258 static surf_action_t action_sleep(void *cpu, double duration)
260 surf_action_cpu_Cas01_t action = NULL;
262 XBT_IN2("(%s,%g)",((cpu_Cas01_t)cpu)->name,duration);
263 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
264 action->generic_action.max_duration = duration;
265 action->suspended = 2;
266 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
268 return (surf_action_t) action;
271 static void action_suspend(surf_action_t action)
273 XBT_IN1("(%p)",action);
274 if(((surf_action_cpu_Cas01_t) action)->suspended != 2) {
275 lmm_update_variable_weight(maxmin_system,
276 ((surf_action_cpu_Cas01_t) action)->variable, 0.0);
277 ((surf_action_cpu_Cas01_t) action)->suspended = 1;
282 static void action_resume(surf_action_t action)
284 XBT_IN1("(%p)",action);
285 if(((surf_action_cpu_Cas01_t) action)->suspended != 2) {
286 lmm_update_variable_weight(maxmin_system,
287 ((surf_action_cpu_Cas01_t) action)->variable,
289 ((surf_action_cpu_Cas01_t) action)->suspended=0;
294 static int action_is_suspended(surf_action_t action)
296 return (((surf_action_cpu_Cas01_t) action)->suspended==1);
299 static void action_set_max_duration(surf_action_t action, double duration)
301 XBT_IN2("(%p,%g)",action,duration);
302 action->max_duration = duration;
306 static void action_set_priority(surf_action_t action, double priority)
308 XBT_IN2("(%p,%g)",action,priority);
309 action->priority = priority;
313 static e_surf_cpu_state_t get_state(void *cpu)
315 return ((cpu_Cas01_t) cpu)->state_current;
318 static double get_speed(void *cpu, double load)
320 return load*(((cpu_Cas01_t) cpu)->power_scale);
323 static double get_available_speed(void *cpu)
325 /* number between 0 and 1 */
326 return ((cpu_Cas01_t) cpu)->power_current;
329 static void finalize(void)
331 xbt_dict_free(&cpu_set);
332 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
333 xbt_swag_free(surf_cpu_resource->common_public->states.
335 xbt_swag_free(surf_cpu_resource->common_public->states.
337 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
338 free(surf_cpu_resource->common_public);
339 free(surf_cpu_resource->common_private);
340 free(surf_cpu_resource->extension_public);
342 free(surf_cpu_resource);
343 surf_cpu_resource = NULL;
346 static void surf_cpu_resource_init_internal(void)
348 s_surf_action_t action;
350 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
352 surf_cpu_resource->common_private =
353 xbt_new0(s_surf_resource_private_t, 1);
354 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
356 surf_cpu_resource->extension_public =
357 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
359 surf_cpu_resource->common_public->states.ready_action_set =
360 xbt_swag_new(xbt_swag_offset(action, state_hookup));
361 surf_cpu_resource->common_public->states.running_action_set =
362 xbt_swag_new(xbt_swag_offset(action, state_hookup));
363 surf_cpu_resource->common_public->states.failed_action_set =
364 xbt_swag_new(xbt_swag_offset(action, state_hookup));
365 surf_cpu_resource->common_public->states.done_action_set =
366 xbt_swag_new(xbt_swag_offset(action, state_hookup));
368 surf_cpu_resource->common_public->name_service = name_service;
369 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
370 surf_cpu_resource->common_public->action_get_state =
371 surf_action_get_state;
372 surf_cpu_resource->common_public->action_get_start_time =
373 surf_action_get_start_time;
374 surf_cpu_resource->common_public->action_get_finish_time =
375 surf_action_get_finish_time;
376 surf_cpu_resource->common_public->action_free = action_free;
377 surf_cpu_resource->common_public->action_use = action_use;
378 surf_cpu_resource->common_public->action_cancel = action_cancel;
379 surf_cpu_resource->common_public->action_recycle = action_recycle;
380 surf_cpu_resource->common_public->action_change_state =
382 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
383 surf_cpu_resource->common_public->name = "CPU";
385 surf_cpu_resource->common_private->resource_used = resource_used;
386 surf_cpu_resource->common_private->share_resources = share_resources;
387 surf_cpu_resource->common_private->update_actions_state =
388 update_actions_state;
389 surf_cpu_resource->common_private->update_resource_state =
390 update_resource_state;
391 surf_cpu_resource->common_private->finalize = finalize;
393 surf_cpu_resource->common_public->suspend = action_suspend;
394 surf_cpu_resource->common_public->resume = action_resume;
395 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
396 surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
397 surf_cpu_resource->common_public->set_priority = action_set_priority;
398 surf_cpu_resource->extension_public->execute = execute;
399 surf_cpu_resource->extension_public->sleep = action_sleep;
401 surf_cpu_resource->extension_public->get_state = get_state;
402 surf_cpu_resource->extension_public->get_speed = get_speed;
403 surf_cpu_resource->extension_public->get_available_speed = get_available_speed;
405 cpu_set = xbt_dict_new();
407 xbt_assert0(maxmin_system, "surf_init has to be called first!");
410 /*********************************************************************/
411 /* Basic sharing model for CPU: that is where all this started... ;) */
412 /*********************************************************************/
413 /* @InProceedings{casanova01simgrid, */
414 /* author = "H. Casanova", */
415 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
416 /* and the Grid (CCGrid'01)", */
417 /* publisher = "IEEE Computer Society", */
418 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
422 /* note = "Available at */
423 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
425 void surf_cpu_resource_init_Cas01(const char *filename)
427 if (surf_cpu_resource)
429 surf_cpu_resource_init_internal();
430 parse_file(filename);
431 xbt_dynar_push(resource_list, &surf_cpu_resource);