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"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(cpu, surf,
12 "Logging specific to the SURF CPU module");
14 surf_cpu_resource_t surf_cpu_resource = NULL;
16 static xbt_dict_t cpu_set = NULL;
18 static void cpu_free(void *CPU)
20 /* cpu_t cpu = CPU; */
21 /* lmm_constraint_free(maxmin_system,cpu->constraint); */
22 /* Clean somewhere else ! */
27 /* power_scale is the basic power of the cpu when the cpu is
28 completely available. power_initial is therefore expected to be
29 comprised between 0.0 and 1.0, just as the values of power_trace.
30 state_trace values mean SURF_CPU_ON if >0 and SURF_CPU_OFF
33 static cpu_t cpu_new(const char *name, xbt_maxmin_float_t power_scale,
34 xbt_maxmin_float_t power_initial,
35 tmgr_trace_t power_trace,
36 e_surf_cpu_state_t state_initial,
37 tmgr_trace_t state_trace)
39 cpu_t cpu = xbt_new0(s_cpu_t, 1);
41 cpu->resource = (surf_resource_t) surf_cpu_resource;
43 cpu->power_scale = power_scale;
44 cpu->power_current = power_initial;
45 /* cpu->power_trace = power_trace; */
48 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
50 cpu->state_current = state_initial;
51 /* cpu->state_trace = state_trace; */
54 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
57 lmm_constraint_new(maxmin_system, cpu,
58 cpu->power_current * cpu->power_scale);
60 xbt_dict_set(cpu_set, name, cpu, cpu_free);
66 Semantic: name scale initial power initial state
67 power trace state trace
69 Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
70 Type: string float float string ON/OFF string
73 static void parse_cpu(void)
77 xbt_maxmin_float_t power_scale = 0.0;
78 xbt_maxmin_float_t power_initial = 0.0;
79 tmgr_trace_t power_trace = NULL;;
80 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
81 tmgr_trace_t state_trace = NULL;
83 name = xbt_strdup(surf_parse_text);
85 surf_parse_float(&power_scale);
86 surf_parse_float(&power_initial);
87 surf_parse_trace(&power_trace);
89 token = surf_parse(); /* state_initial */
90 xbt_assert1((token == TOKEN_WORD), "Parse error line %d", line_pos);
91 if (strcmp(surf_parse_text, "ON") == 0)
92 state_initial = SURF_CPU_ON;
93 else if (strcmp(surf_parse_text, "OFF") == 0)
94 state_initial = SURF_CPU_OFF;
96 CRITICAL2("Invalid cpu state (line %d): %s neq ON or OFF\n", line_pos,
101 surf_parse_trace(&state_trace);
103 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
107 static void parse_file(const char *file)
109 e_surf_token_t token;
111 find_section(file, "CPU");
114 token = surf_parse();
116 if (token == TOKEN_END_SECTION)
118 if (token == TOKEN_NEWLINE)
121 if (token == TOKEN_WORD)
124 CRITICAL1("Parse error line %d\n", line_pos);
129 close_section("CPU");
132 static void *name_service(const char *name)
136 xbt_dict_get(cpu_set, name, &cpu);
141 static const char *get_resource_name(void *resource_id)
143 return ((cpu_t) resource_id)->name;
146 static int resource_used(void *resource_id)
148 return lmm_constraint_used(maxmin_system,
149 ((cpu_t) resource_id)->constraint);
152 static void action_free(surf_action_t action)
154 surf_action_cpu_t Action = (surf_action_cpu_t) action;
156 xbt_swag_remove(action, action->state_set);
157 lmm_variable_free(maxmin_system, Action->variable);
163 static void action_cancel(surf_action_t action)
168 static void action_recycle(surf_action_t action)
173 static void action_change_state(surf_action_t action,
174 e_surf_action_state_t state)
176 surf_action_change_state(action, state);
180 static xbt_heap_float_t share_resources(xbt_heap_float_t now)
182 s_surf_action_cpu_t action;
183 return generic_maxmin_share_resources(surf_cpu_resource->common_public->states.running_action_set,
184 xbt_swag_offset(action,variable));
187 static void update_actions_state(xbt_heap_float_t now,
188 xbt_heap_float_t delta)
190 surf_action_cpu_t action = NULL;
191 surf_action_cpu_t next_action = NULL;
192 xbt_swag_t running_actions =
193 surf_cpu_resource->common_public->states.running_action_set;
194 xbt_swag_t failed_actions =
195 surf_cpu_resource->common_public->states.failed_action_set;
197 xbt_swag_foreach_safe(action, next_action, running_actions) {
198 action->generic_action.remains -=
199 lmm_variable_getvalue(action->variable) * delta;
200 if(action->generic_action.max_duration!=NO_MAX_DURATION)
201 action->generic_action.max_duration -= delta;
202 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
203 if (action->generic_action.remains <= 0) {
204 action->generic_action.finish = surf_get_clock();
205 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
206 } else if((action->generic_action.max_duration!=NO_MAX_DURATION) &&
207 (action->generic_action.max_duration<=0)) {
208 action->generic_action.finish = surf_get_clock();
209 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
210 } else { /* Need to check that none of the resource has failed */
211 lmm_constraint_t cnst = NULL;
216 lmm_get_cnst_from_var(maxmin_system, action->variable,
218 cpu = lmm_constraint_id(cnst);
219 if (cpu->state_current == SURF_CPU_OFF) {
220 action->generic_action.finish = surf_get_clock();
221 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
228 xbt_swag_foreach_safe(action, next_action, failed_actions) {
229 lmm_variable_disable(maxmin_system, action->variable);
235 static void update_resource_state(void *id,
236 tmgr_trace_event_t event_type,
237 xbt_maxmin_float_t value)
241 /* printf("[" XBT_HEAP_FLOAT_T "] Asking to update CPU \"%s\" with value " */
242 /* XBT_MAXMIN_FLOAT_T " for event %p\n", surf_get_clock(), cpu->name, */
243 /* value, event_type); */
245 if (event_type == cpu->power_event) {
246 cpu->power_current = value;
247 lmm_update_constraint_bound(maxmin_system,cpu->constraint,
248 cpu->power_current * cpu->power_scale);
249 } else if (event_type == cpu->state_event) {
251 cpu->state_current = SURF_CPU_ON;
253 cpu->state_current = SURF_CPU_OFF;
255 CRITICAL0("Unknown event ! \n");
262 static surf_action_t execute(void *cpu, xbt_maxmin_float_t size)
264 surf_action_cpu_t action = NULL;
267 action = xbt_new0(s_surf_action_cpu_t, 1);
269 action->generic_action.cost = size;
270 action->generic_action.remains = size;
271 action->generic_action.max_duration = NO_MAX_DURATION;
272 action->generic_action.start = surf_get_clock();
273 action->generic_action.finish = -1.0;
274 /* action->generic_action.callback = cpu; */
275 action->generic_action.callback = NULL;
276 action->generic_action.resource_type =
277 (surf_resource_t) surf_cpu_resource;
279 if (CPU->state_current == SURF_CPU_ON)
280 action->generic_action.state_set =
281 surf_cpu_resource->common_public->states.running_action_set;
283 action->generic_action.state_set =
284 surf_cpu_resource->common_public->states.failed_action_set;
285 xbt_swag_insert(action, action->generic_action.state_set);
287 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
288 lmm_expand(maxmin_system, ((cpu_t) cpu)->constraint, action->variable,
291 return (surf_action_t) action;
294 static surf_action_t action_sleep(void *cpu, xbt_maxmin_float_t duration)
296 surf_action_cpu_t action = NULL;
298 action = (surf_action_cpu_t) execute(cpu, 1.0);
299 action->generic_action.max_duration = duration;
300 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
302 return (surf_action_t) action;
305 static void action_suspend(surf_action_t action)
307 lmm_update_variable_weight(maxmin_system, ((surf_action_cpu_t) action)->variable, 0.0);
310 static void action_resume(surf_action_t action)
312 lmm_update_variable_weight(maxmin_system, ((surf_action_cpu_t) action)->variable, 1.0);
315 static e_surf_cpu_state_t get_state(void *cpu)
317 return ((cpu_t) cpu)->state_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 xbt_free(surf_cpu_resource->common_public);
330 xbt_free(surf_cpu_resource->common_private);
331 xbt_free(surf_cpu_resource->extension_public);
333 xbt_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_cancel = action_cancel;
365 surf_cpu_resource->common_public->action_recycle = action_recycle;
366 surf_cpu_resource->common_public->action_change_state =
369 surf_cpu_resource->common_private->resource_used = resource_used;
370 surf_cpu_resource->common_private->share_resources = share_resources;
371 surf_cpu_resource->common_private->update_actions_state =
372 update_actions_state;
373 surf_cpu_resource->common_private->update_resource_state =
374 update_resource_state;
375 surf_cpu_resource->common_private->finalize = finalize;
377 surf_cpu_resource->extension_public->execute = execute;
378 surf_cpu_resource->extension_public->sleep = action_sleep;
379 surf_cpu_resource->extension_public->suspend = action_suspend;
380 surf_cpu_resource->extension_public->resume = action_resume;
382 surf_cpu_resource->extension_public->get_state = get_state;
384 cpu_set = xbt_dict_new();
386 xbt_assert0(maxmin_system, "surf_init has to be called first!");
389 void surf_cpu_resource_init(const char *filename)
391 surf_cpu_resource_init_internal();
392 parse_file(filename);
393 xbt_dynar_push(resource_list, &surf_cpu_resource);