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(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_cpu_name);
64 surf_parse_get_double(&power_scale,A_cpu_power);
65 surf_parse_get_double(&power_initial,A_cpu_availability);
66 surf_parse_get_trace(&power_trace,A_cpu_availability_file);
68 xbt_assert0((A_cpu_state==A_cpu_state_ON)||(A_cpu_state==A_cpu_state_OFF),
70 if (A_cpu_state==A_cpu_state_ON) state_initial = SURF_CPU_ON;
71 if (A_cpu_state==A_cpu_state_OFF) state_initial = SURF_CPU_OFF;
72 surf_parse_get_trace(&state_trace,A_cpu_state_file);
74 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
78 static void parse_file(const char *file)
80 surf_parse_reset_parser();
81 ETag_cpu_fun=parse_cpu;
82 surf_parse_open(file);
83 xbt_assert1((!surf_parse()),"Parse error in %s",file);
87 static void *name_service(const char *name)
89 return xbt_dict_get_or_null(cpu_set, name);
92 static const char *get_resource_name(void *resource_id)
94 return ((cpu_Cas01_t) resource_id)->name;
97 static int resource_used(void *resource_id)
99 return lmm_constraint_used(maxmin_system,
100 ((cpu_Cas01_t) resource_id)->constraint);
103 static int action_free(surf_action_t action)
107 xbt_swag_remove(action, action->state_set);
108 if(((surf_action_cpu_Cas01_t)action)->variable)
109 lmm_variable_free(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
116 static void action_use(surf_action_t action)
121 static void action_cancel(surf_action_t action)
123 surf_action_change_state(action, SURF_ACTION_FAILED);
127 static void action_recycle(surf_action_t action)
132 static void action_change_state(surf_action_t action,
133 e_surf_action_state_t state)
135 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
136 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
137 /* lmm_variable_disable(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
138 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
141 surf_action_change_state(action, state);
145 static double share_resources(double now)
147 s_surf_action_cpu_Cas01_t action;
148 return generic_maxmin_share_resources(surf_cpu_resource->common_public->
149 states.running_action_set,
150 xbt_swag_offset(action, variable));
153 static void update_actions_state(double now, double delta)
155 surf_action_cpu_Cas01_t action = NULL;
156 surf_action_cpu_Cas01_t next_action = NULL;
157 xbt_swag_t running_actions =
158 surf_cpu_resource->common_public->states.running_action_set;
160 xbt_swag_t failed_actions =
161 surf_cpu_resource->common_public->states.failed_action_set;
164 xbt_swag_foreach_safe(action, next_action, running_actions) {
165 surf_double_update(&(action->generic_action.remains),
166 lmm_variable_getvalue(action->variable) * delta);
167 if (action->generic_action.max_duration != NO_MAX_DURATION)
168 surf_double_update(&(action->generic_action.max_duration), delta);
169 if ((action->generic_action.remains <= 0) &&
170 (lmm_get_variable_weight(action->variable)>0)) {
171 action->generic_action.finish = surf_get_clock();
172 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
173 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
174 (action->generic_action.max_duration <= 0)) {
175 action->generic_action.finish = surf_get_clock();
176 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
177 } else { /* Need to check that none of the resource has failed */
178 lmm_constraint_t cnst = NULL;
180 cpu_Cas01_t cpu = NULL;
183 lmm_get_cnst_from_var(maxmin_system, action->variable,
185 cpu = lmm_constraint_id(cnst);
186 if (cpu->state_current == SURF_CPU_OFF) {
187 action->generic_action.finish = surf_get_clock();
188 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
198 static void update_resource_state(void *id,
199 tmgr_trace_event_t event_type,
202 cpu_Cas01_t cpu = id;
204 if (event_type == cpu->power_event) {
205 cpu->power_current = value;
206 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
207 cpu->power_current * cpu->power_scale);
208 } else if (event_type == cpu->state_event) {
210 cpu->state_current = SURF_CPU_ON;
212 cpu->state_current = SURF_CPU_OFF;
214 CRITICAL0("Unknown event ! \n");
221 static surf_action_t execute(void *cpu, double size)
223 surf_action_cpu_Cas01_t action = NULL;
224 cpu_Cas01_t CPU = cpu;
226 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
228 action->generic_action.using = 1;
229 action->generic_action.cost = size;
230 action->generic_action.remains = size;
231 action->generic_action.priority = 1.0;
232 action->generic_action.max_duration = NO_MAX_DURATION;
233 action->generic_action.start = surf_get_clock();
234 action->generic_action.finish = -1.0;
235 action->generic_action.resource_type =
236 (surf_resource_t) surf_cpu_resource;
238 if (CPU->state_current == SURF_CPU_ON)
239 action->generic_action.state_set =
240 surf_cpu_resource->common_public->states.running_action_set;
242 action->generic_action.state_set =
243 surf_cpu_resource->common_public->states.failed_action_set;
244 xbt_swag_insert(action, action->generic_action.state_set);
246 action->variable = lmm_variable_new(maxmin_system, action,
247 action->generic_action.priority, -1.0, 1);
248 lmm_expand(maxmin_system, CPU->constraint, action->variable,
251 return (surf_action_t) action;
254 static surf_action_t action_sleep(void *cpu, double duration)
256 surf_action_cpu_Cas01_t action = NULL;
258 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
259 action->generic_action.max_duration = duration;
260 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
262 return (surf_action_t) action;
265 static void action_suspend(surf_action_t action)
267 lmm_update_variable_weight(maxmin_system,
268 ((surf_action_cpu_Cas01_t) action)->variable, 0.0);
271 static void action_resume(surf_action_t action)
273 lmm_update_variable_weight(maxmin_system,
274 ((surf_action_cpu_Cas01_t) action)->variable,
278 static int action_is_suspended(surf_action_t action)
280 return (lmm_get_variable_weight(((surf_action_cpu_Cas01_t) action)->variable) == 0.0);
283 static void action_set_max_duration(surf_action_t action, double duration)
285 action->max_duration = duration;
288 static void action_set_priority(surf_action_t action, double priority)
290 action->priority = priority;
293 static e_surf_cpu_state_t get_state(void *cpu)
295 return ((cpu_Cas01_t) cpu)->state_current;
298 static double get_speed(void *cpu, double load)
300 return load*(((cpu_Cas01_t) cpu)->power_scale);
303 static void finalize(void)
305 xbt_dict_free(&cpu_set);
306 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
307 xbt_swag_free(surf_cpu_resource->common_public->states.
309 xbt_swag_free(surf_cpu_resource->common_public->states.
311 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
312 free(surf_cpu_resource->common_public);
313 free(surf_cpu_resource->common_private);
314 free(surf_cpu_resource->extension_public);
316 free(surf_cpu_resource);
317 surf_cpu_resource = NULL;
320 static void surf_cpu_resource_init_internal(void)
322 s_surf_action_t action;
324 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
326 surf_cpu_resource->common_private =
327 xbt_new0(s_surf_resource_private_t, 1);
328 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
330 surf_cpu_resource->extension_public =
331 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
333 surf_cpu_resource->common_public->states.ready_action_set =
334 xbt_swag_new(xbt_swag_offset(action, state_hookup));
335 surf_cpu_resource->common_public->states.running_action_set =
336 xbt_swag_new(xbt_swag_offset(action, state_hookup));
337 surf_cpu_resource->common_public->states.failed_action_set =
338 xbt_swag_new(xbt_swag_offset(action, state_hookup));
339 surf_cpu_resource->common_public->states.done_action_set =
340 xbt_swag_new(xbt_swag_offset(action, state_hookup));
342 surf_cpu_resource->common_public->name_service = name_service;
343 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
344 surf_cpu_resource->common_public->action_get_state =
345 surf_action_get_state;
346 surf_cpu_resource->common_public->action_free = action_free;
347 surf_cpu_resource->common_public->action_use = action_use;
348 surf_cpu_resource->common_public->action_cancel = action_cancel;
349 surf_cpu_resource->common_public->action_recycle = action_recycle;
350 surf_cpu_resource->common_public->action_change_state =
352 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
353 surf_cpu_resource->common_public->name = "CPU";
355 surf_cpu_resource->common_private->resource_used = resource_used;
356 surf_cpu_resource->common_private->share_resources = share_resources;
357 surf_cpu_resource->common_private->update_actions_state =
358 update_actions_state;
359 surf_cpu_resource->common_private->update_resource_state =
360 update_resource_state;
361 surf_cpu_resource->common_private->finalize = finalize;
363 surf_cpu_resource->common_public->suspend = action_suspend;
364 surf_cpu_resource->common_public->resume = action_resume;
365 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
366 surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
367 surf_cpu_resource->common_public->set_priority = action_set_priority;
368 surf_cpu_resource->extension_public->execute = execute;
369 surf_cpu_resource->extension_public->sleep = action_sleep;
371 surf_cpu_resource->extension_public->get_state = get_state;
372 surf_cpu_resource->extension_public->get_speed = get_speed;
374 cpu_set = xbt_dict_new();
376 xbt_assert0(maxmin_system, "surf_init has to be called first!");
379 /*********************************************************************/
380 /* Basic sharing model for CPU: that is where all this started... ;) */
381 /*********************************************************************/
382 /* @InProceedings{casanova01simgrid, */
383 /* author = "H. Casanova", */
384 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
385 /* and the Grid (CCGrid'01)", */
386 /* publisher = "IEEE Computer Society", */
387 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
391 /* note = "Available at */
392 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
394 void surf_cpu_resource_init_Cas01(const char *filename)
396 if (surf_cpu_resource)
398 surf_cpu_resource_init_internal();
399 parse_file(filename);
400 xbt_dynar_push(resource_list, &surf_cpu_resource);