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 xbt_free(((cpu_t)cpu)->name);
23 /* power_scale is the basic power of the cpu when the cpu is
24 completely available. power_initial is therefore expected to be
25 comprised between 0.0 and 1.0, just as the values of power_trace.
26 state_trace values mean SURF_CPU_ON if >0 and SURF_CPU_OFF
29 static cpu_t cpu_new(char *name, double power_scale,
31 tmgr_trace_t power_trace,
32 e_surf_cpu_state_t state_initial,
33 tmgr_trace_t state_trace)
35 cpu_t cpu = xbt_new0(s_cpu_t, 1);
37 cpu->resource = (surf_resource_t) surf_cpu_resource;
39 cpu->power_scale = power_scale;
40 cpu->power_current = power_initial;
41 /* cpu->power_trace = power_trace; */
44 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
46 cpu->state_current = state_initial;
47 /* cpu->state_trace = state_trace; */
50 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
53 lmm_constraint_new(maxmin_system, cpu,
54 cpu->power_current * cpu->power_scale);
56 xbt_dict_set(cpu_set, name, cpu, cpu_free);
62 Semantic: name scale initial power initial state
63 power trace state trace
65 Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
66 Type: string double double string ON/OFF string
69 static void parse_cpu(void)
72 double power_scale = 0.0;
73 double power_initial = 0.0;
74 tmgr_trace_t power_trace = NULL;
75 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
76 tmgr_trace_t state_trace = NULL;
78 name = xbt_strdup(A_cpu_name);
79 surf_parse_get_double(&power_scale,A_cpu_power);
80 surf_parse_get_double(&power_initial,A_cpu_availability);
81 surf_parse_get_trace(&power_trace,A_cpu_availability_file);
83 xbt_assert0((A_cpu_state==A_cpu_state_ON)||(A_cpu_state==A_cpu_state_OFF),
85 if (A_cpu_state==A_cpu_state_ON) state_initial = SURF_CPU_ON;
86 if (A_cpu_state==A_cpu_state_OFF) state_initial = SURF_CPU_OFF;
87 surf_parse_get_trace(&state_trace,A_cpu_state_file);
89 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
93 static void parse_file(const char *file)
95 surf_parse_reset_parser();
96 ETag_cpu_fun=parse_cpu;
97 surf_parse_open(file);
102 static void *name_service(const char *name)
106 xbt_dict_get(cpu_set, name, &cpu);
111 static const char *get_resource_name(void *resource_id)
113 return ((cpu_t) resource_id)->name;
116 static int resource_used(void *resource_id)
118 return lmm_constraint_used(maxmin_system,
119 ((cpu_t) resource_id)->constraint);
122 static void action_free(surf_action_t action)
124 surf_action_cpu_t Action = (surf_action_cpu_t) action;
126 xbt_swag_remove(action, action->state_set);
127 lmm_variable_free(maxmin_system, Action->variable);
133 static void action_cancel(surf_action_t action)
138 static void action_recycle(surf_action_t action)
143 static void action_change_state(surf_action_t action,
144 e_surf_action_state_t state)
146 surf_action_change_state(action, state);
150 static double share_resources(double now)
152 s_surf_action_cpu_t action;
153 return generic_maxmin_share_resources(surf_cpu_resource->common_public->
154 states.running_action_set,
155 xbt_swag_offset(action, variable));
158 static void update_actions_state(double now, double delta)
160 surf_action_cpu_t action = NULL;
161 surf_action_cpu_t next_action = NULL;
162 xbt_swag_t running_actions =
163 surf_cpu_resource->common_public->states.running_action_set;
164 xbt_swag_t failed_actions =
165 surf_cpu_resource->common_public->states.failed_action_set;
167 xbt_swag_foreach_safe(action, next_action, running_actions) {
168 action->generic_action.remains -=
169 lmm_variable_getvalue(action->variable) * delta;
170 if (action->generic_action.max_duration != NO_MAX_DURATION)
171 action->generic_action.max_duration -= delta;
172 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
173 if ((action->generic_action.remains <= 0) &&
174 (lmm_get_variable_weight(action->variable)>0)) {
175 action->generic_action.finish = surf_get_clock();
176 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
177 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
178 (action->generic_action.max_duration <= 0)) {
179 action->generic_action.finish = surf_get_clock();
180 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
181 } else { /* Need to check that none of the resource has failed */
182 lmm_constraint_t cnst = NULL;
187 lmm_get_cnst_from_var(maxmin_system, action->variable,
189 cpu = lmm_constraint_id(cnst);
190 if (cpu->state_current == SURF_CPU_OFF) {
191 action->generic_action.finish = surf_get_clock();
192 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
199 xbt_swag_foreach_safe(action, next_action, failed_actions) {
200 lmm_variable_disable(maxmin_system, action->variable);
206 static void update_resource_state(void *id,
207 tmgr_trace_event_t event_type,
212 /* printf("[" "%lg" "] Asking to update CPU \"%s\" with value " */
213 /* "%lg" " for event %p\n", surf_get_clock(), cpu->name, */
214 /* value, event_type); */
216 if (event_type == cpu->power_event) {
217 cpu->power_current = value;
218 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
219 cpu->power_current * cpu->power_scale);
220 } else if (event_type == cpu->state_event) {
222 cpu->state_current = SURF_CPU_ON;
224 cpu->state_current = SURF_CPU_OFF;
226 CRITICAL0("Unknown event ! \n");
233 static surf_action_t execute(void *cpu, double size)
235 surf_action_cpu_t action = NULL;
238 action = xbt_new0(s_surf_action_cpu_t, 1);
240 action->generic_action.cost = size;
241 action->generic_action.remains = size;
242 action->generic_action.max_duration = NO_MAX_DURATION;
243 action->generic_action.start = surf_get_clock();
244 action->generic_action.finish = -1.0;
245 action->generic_action.resource_type =
246 (surf_resource_t) surf_cpu_resource;
248 if (CPU->state_current == SURF_CPU_ON)
249 action->generic_action.state_set =
250 surf_cpu_resource->common_public->states.running_action_set;
252 action->generic_action.state_set =
253 surf_cpu_resource->common_public->states.failed_action_set;
254 xbt_swag_insert(action, action->generic_action.state_set);
256 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
257 lmm_expand(maxmin_system, ((cpu_t) cpu)->constraint, action->variable,
260 return (surf_action_t) action;
263 static surf_action_t action_sleep(void *cpu, double duration)
265 surf_action_cpu_t action = NULL;
267 action = (surf_action_cpu_t) execute(cpu, 1.0);
268 action->generic_action.max_duration = duration;
269 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
271 return (surf_action_t) action;
274 static void action_suspend(surf_action_t action)
276 lmm_update_variable_weight(maxmin_system,
277 ((surf_action_cpu_t) action)->variable, 0.0);
280 static void action_resume(surf_action_t action)
282 lmm_update_variable_weight(maxmin_system,
283 ((surf_action_cpu_t) action)->variable, 1.0);
286 static int action_is_suspended(surf_action_t action)
288 return (lmm_get_variable_weight(((surf_action_cpu_t) action)->variable) == 0.0);
291 static e_surf_cpu_state_t get_state(void *cpu)
293 return ((cpu_t) cpu)->state_current;
296 static void finalize(void)
298 xbt_dict_free(&cpu_set);
299 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
300 xbt_swag_free(surf_cpu_resource->common_public->states.
302 xbt_swag_free(surf_cpu_resource->common_public->states.
304 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
305 xbt_free(surf_cpu_resource->common_public);
306 xbt_free(surf_cpu_resource->common_private);
307 xbt_free(surf_cpu_resource->extension_public);
309 xbt_free(surf_cpu_resource);
310 surf_cpu_resource = NULL;
313 static void surf_cpu_resource_init_internal(void)
315 s_surf_action_t action;
317 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
319 surf_cpu_resource->common_private =
320 xbt_new0(s_surf_resource_private_t, 1);
321 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
323 surf_cpu_resource->extension_public =
324 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
326 surf_cpu_resource->common_public->states.ready_action_set =
327 xbt_swag_new(xbt_swag_offset(action, state_hookup));
328 surf_cpu_resource->common_public->states.running_action_set =
329 xbt_swag_new(xbt_swag_offset(action, state_hookup));
330 surf_cpu_resource->common_public->states.failed_action_set =
331 xbt_swag_new(xbt_swag_offset(action, state_hookup));
332 surf_cpu_resource->common_public->states.done_action_set =
333 xbt_swag_new(xbt_swag_offset(action, state_hookup));
335 surf_cpu_resource->common_public->name_service = name_service;
336 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
337 surf_cpu_resource->common_public->action_get_state =
338 surf_action_get_state;
339 surf_cpu_resource->common_public->action_free = action_free;
340 surf_cpu_resource->common_public->action_cancel = action_cancel;
341 surf_cpu_resource->common_public->action_recycle = action_recycle;
342 surf_cpu_resource->common_public->action_change_state =
344 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
345 surf_cpu_resource->common_public->name = "CPU";
347 surf_cpu_resource->common_private->resource_used = resource_used;
348 surf_cpu_resource->common_private->share_resources = share_resources;
349 surf_cpu_resource->common_private->update_actions_state =
350 update_actions_state;
351 surf_cpu_resource->common_private->update_resource_state =
352 update_resource_state;
353 surf_cpu_resource->common_private->finalize = finalize;
355 surf_cpu_resource->extension_public->execute = execute;
356 surf_cpu_resource->extension_public->sleep = action_sleep;
357 surf_cpu_resource->extension_public->suspend = action_suspend;
358 surf_cpu_resource->extension_public->resume = action_resume;
359 surf_cpu_resource->extension_public->is_suspended = action_is_suspended;
361 surf_cpu_resource->extension_public->get_state = get_state;
363 cpu_set = xbt_dict_new();
365 xbt_assert0(maxmin_system, "surf_init has to be called first!");
368 void surf_cpu_resource_init(const char *filename)
370 if (surf_cpu_resource)
372 surf_cpu_resource_init_internal();
373 parse_file(filename);
374 xbt_dynar_push(resource_list, &surf_cpu_resource);