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 surf_double_update(&(action->generic_action.remains),
167 lmm_variable_getvalue(action->variable) * delta);
168 if (action->generic_action.max_duration != NO_MAX_DURATION)
169 surf_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;
240 if (CPU->state_current == SURF_CPU_ON)
241 action->generic_action.state_set =
242 surf_cpu_resource->common_public->states.running_action_set;
244 action->generic_action.state_set =
245 surf_cpu_resource->common_public->states.failed_action_set;
246 xbt_swag_insert(action, action->generic_action.state_set);
248 action->variable = lmm_variable_new(maxmin_system, action,
249 action->generic_action.priority, -1.0, 1);
250 lmm_expand(maxmin_system, CPU->constraint, action->variable,
253 return (surf_action_t) action;
256 static surf_action_t action_sleep(void *cpu, double duration)
258 surf_action_cpu_Cas01_t action = NULL;
260 XBT_IN2("(%s,%g)",((cpu_Cas01_t)cpu)->name,duration);
261 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
262 action->generic_action.max_duration = duration;
263 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
265 return (surf_action_t) action;
268 static void action_suspend(surf_action_t action)
270 XBT_IN1("(%p)",action);
271 lmm_update_variable_weight(maxmin_system,
272 ((surf_action_cpu_Cas01_t) action)->variable, 0.0);
276 static void action_resume(surf_action_t action)
278 XBT_IN1("(%p)",action);
279 lmm_update_variable_weight(maxmin_system,
280 ((surf_action_cpu_Cas01_t) action)->variable,
285 static int action_is_suspended(surf_action_t action)
287 return (lmm_get_variable_weight(((surf_action_cpu_Cas01_t) action)->variable) == 0.0);
290 static void action_set_max_duration(surf_action_t action, double duration)
292 XBT_IN2("(%p,%g)",action,duration);
293 action->max_duration = duration;
297 static void action_set_priority(surf_action_t action, double priority)
299 XBT_IN2("(%p,%g)",action,priority);
300 action->priority = priority;
304 static e_surf_cpu_state_t get_state(void *cpu)
306 return ((cpu_Cas01_t) cpu)->state_current;
309 static double get_speed(void *cpu, double load)
311 return load*(((cpu_Cas01_t) cpu)->power_scale);
314 static double get_available_speed(void *cpu)
316 /* number between 0 and 1 */
317 return ((cpu_Cas01_t) cpu)->power_current;
320 static void finalize(void)
322 xbt_dict_free(&cpu_set);
323 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
324 xbt_swag_free(surf_cpu_resource->common_public->states.
326 xbt_swag_free(surf_cpu_resource->common_public->states.
328 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
329 free(surf_cpu_resource->common_public);
330 free(surf_cpu_resource->common_private);
331 free(surf_cpu_resource->extension_public);
333 free(surf_cpu_resource);
334 surf_cpu_resource = NULL;
337 static void surf_cpu_resource_init_internal(void)
339 s_surf_action_t action;
341 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
343 surf_cpu_resource->common_private =
344 xbt_new0(s_surf_resource_private_t, 1);
345 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
347 surf_cpu_resource->extension_public =
348 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
350 surf_cpu_resource->common_public->states.ready_action_set =
351 xbt_swag_new(xbt_swag_offset(action, state_hookup));
352 surf_cpu_resource->common_public->states.running_action_set =
353 xbt_swag_new(xbt_swag_offset(action, state_hookup));
354 surf_cpu_resource->common_public->states.failed_action_set =
355 xbt_swag_new(xbt_swag_offset(action, state_hookup));
356 surf_cpu_resource->common_public->states.done_action_set =
357 xbt_swag_new(xbt_swag_offset(action, state_hookup));
359 surf_cpu_resource->common_public->name_service = name_service;
360 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
361 surf_cpu_resource->common_public->action_get_state =
362 surf_action_get_state;
363 surf_cpu_resource->common_public->action_free = action_free;
364 surf_cpu_resource->common_public->action_use = action_use;
365 surf_cpu_resource->common_public->action_cancel = action_cancel;
366 surf_cpu_resource->common_public->action_recycle = action_recycle;
367 surf_cpu_resource->common_public->action_change_state =
369 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
370 surf_cpu_resource->common_public->name = "CPU";
372 surf_cpu_resource->common_private->resource_used = resource_used;
373 surf_cpu_resource->common_private->share_resources = share_resources;
374 surf_cpu_resource->common_private->update_actions_state =
375 update_actions_state;
376 surf_cpu_resource->common_private->update_resource_state =
377 update_resource_state;
378 surf_cpu_resource->common_private->finalize = finalize;
380 surf_cpu_resource->common_public->suspend = action_suspend;
381 surf_cpu_resource->common_public->resume = action_resume;
382 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
383 surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
384 surf_cpu_resource->common_public->set_priority = action_set_priority;
385 surf_cpu_resource->extension_public->execute = execute;
386 surf_cpu_resource->extension_public->sleep = action_sleep;
388 surf_cpu_resource->extension_public->get_state = get_state;
389 surf_cpu_resource->extension_public->get_speed = get_speed;
390 surf_cpu_resource->extension_public->get_available_speed = get_available_speed;
392 cpu_set = xbt_dict_new();
394 xbt_assert0(maxmin_system, "surf_init has to be called first!");
397 /*********************************************************************/
398 /* Basic sharing model for CPU: that is where all this started... ;) */
399 /*********************************************************************/
400 /* @InProceedings{casanova01simgrid, */
401 /* author = "H. Casanova", */
402 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
403 /* and the Grid (CCGrid'01)", */
404 /* publisher = "IEEE Computer Society", */
405 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
409 /* note = "Available at */
410 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
412 void surf_cpu_resource_init_Cas01(const char *filename)
414 if (surf_cpu_resource)
416 surf_cpu_resource_init_internal();
417 parse_file(filename);
418 xbt_dynar_push(resource_list, &surf_cpu_resource);