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 surf_action_cpu_t action = NULL;
183 xbt_swag_t running_actions =
184 surf_cpu_resource->common_public->states.running_action_set;
185 xbt_maxmin_float_t min = -1;
186 xbt_maxmin_float_t value = -1;
187 lmm_solve(maxmin_system);
189 action = xbt_swag_getFirst(running_actions);
192 value = lmm_variable_getvalue(action->variable);
193 min = action->generic_action.remains / value;
195 xbt_swag_foreach(action, running_actions) {
196 value = action->generic_action.remains /
197 lmm_variable_getvalue(action->variable);
205 static void update_actions_state(xbt_heap_float_t now,
206 xbt_heap_float_t delta)
208 surf_action_cpu_t action = NULL;
209 surf_action_cpu_t next_action = NULL;
210 xbt_swag_t running_actions =
211 surf_cpu_resource->common_public->states.running_action_set;
212 xbt_swag_t failed_actions =
213 surf_cpu_resource->common_public->states.failed_action_set;
215 xbt_swag_foreach_safe(action, next_action, running_actions) {
216 action->generic_action.remains -=
217 lmm_variable_getvalue(action->variable) * delta;
218 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
219 if (action->generic_action.remains <= 0) {
220 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
221 } else { /* Need to check that none of the resource has failed */
222 lmm_constraint_t cnst = NULL;
227 lmm_get_cnst_from_var(maxmin_system, action->variable,
229 cpu = lmm_constraint_id(cnst);
230 if (cpu->state_current == SURF_CPU_OFF) {
231 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
238 xbt_swag_foreach_safe(action, next_action, failed_actions) {
239 lmm_variable_disable(maxmin_system, action->variable);
245 static void update_resource_state(void *id,
246 tmgr_trace_event_t event_type,
247 xbt_maxmin_float_t value)
251 /* printf("[" XBT_HEAP_FLOAT_T "] Asking to update CPU \"%s\" with value " */
252 /* XBT_MAXMIN_FLOAT_T " for event %p\n", surf_get_clock(), cpu->name, */
253 /* value, event_type); */
255 if (event_type == cpu->power_event) {
256 cpu->power_current = value;
257 lmm_update_constraint_bound(maxmin_system,cpu->constraint,
258 cpu->power_current * cpu->power_scale);
259 } else if (event_type == cpu->state_event) {
261 cpu->state_current = SURF_CPU_ON;
263 cpu->state_current = SURF_CPU_OFF;
265 CRITICAL0("Unknown event ! \n");
272 static surf_action_t execute(void *cpu, xbt_maxmin_float_t size)
274 surf_action_cpu_t action = NULL;
277 action = xbt_new0(s_surf_action_cpu_t, 1);
279 action->generic_action.cost = size;
280 action->generic_action.remains = size;
281 action->generic_action.start = -1.0;
282 action->generic_action.finish = -1.0;
283 /* action->generic_action.callback = cpu; */
284 action->generic_action.callback = NULL;
285 action->generic_action.resource_type =
286 (surf_resource_t) surf_cpu_resource;
288 if (CPU->state_current == SURF_CPU_ON)
289 action->generic_action.state_set =
290 surf_cpu_resource->common_public->states.running_action_set;
292 action->generic_action.state_set =
293 surf_cpu_resource->common_public->states.failed_action_set;
294 xbt_swag_insert(action, action->generic_action.state_set);
296 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
297 lmm_expand(maxmin_system, ((cpu_t) cpu)->constraint, action->variable,
300 return (surf_action_t) action;
303 static e_surf_cpu_state_t get_state(void *cpu)
305 return ((cpu_t) cpu)->state_current;
308 static void finalize(void)
310 xbt_dict_free(&cpu_set);
311 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
312 xbt_swag_free(surf_cpu_resource->common_public->states.
314 xbt_swag_free(surf_cpu_resource->common_public->states.
316 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
317 xbt_free(surf_cpu_resource->common_public);
318 xbt_free(surf_cpu_resource->common_private);
319 xbt_free(surf_cpu_resource->extension_public);
321 xbt_free(surf_cpu_resource);
322 surf_cpu_resource = NULL;
325 static void surf_cpu_resource_init_internal(void)
327 s_surf_action_t action;
329 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
331 surf_cpu_resource->common_private =
332 xbt_new0(s_surf_resource_private_t, 1);
333 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
334 /* surf_cpu_resource->extension_private = xbt_new0(s_surf_cpu_resource_extension_private_t,1); */
335 surf_cpu_resource->extension_public =
336 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
338 surf_cpu_resource->common_public->states.ready_action_set =
339 xbt_swag_new(xbt_swag_offset(action, state_hookup));
340 surf_cpu_resource->common_public->states.running_action_set =
341 xbt_swag_new(xbt_swag_offset(action, state_hookup));
342 surf_cpu_resource->common_public->states.failed_action_set =
343 xbt_swag_new(xbt_swag_offset(action, state_hookup));
344 surf_cpu_resource->common_public->states.done_action_set =
345 xbt_swag_new(xbt_swag_offset(action, state_hookup));
347 surf_cpu_resource->common_public->name_service = name_service;
348 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
349 surf_cpu_resource->common_public->action_get_state =
350 surf_action_get_state;
351 surf_cpu_resource->common_public->action_free = action_free;
352 surf_cpu_resource->common_public->action_cancel = action_cancel;
353 surf_cpu_resource->common_public->action_recycle = action_recycle;
354 surf_cpu_resource->common_public->action_change_state =
357 surf_cpu_resource->common_private->resource_used = resource_used;
358 surf_cpu_resource->common_private->share_resources = share_resources;
359 surf_cpu_resource->common_private->update_actions_state =
360 update_actions_state;
361 surf_cpu_resource->common_private->update_resource_state =
362 update_resource_state;
363 surf_cpu_resource->common_private->finalize = finalize;
365 surf_cpu_resource->extension_public->execute = execute;
366 surf_cpu_resource->extension_public->get_state = get_state;
368 cpu_set = xbt_dict_new();
370 xbt_assert0(maxmin_system, "surf_init has to be called first!");
373 void surf_cpu_resource_init(const char *filename)
375 surf_cpu_resource_init_internal();
376 parse_file(filename);
377 xbt_dynar_push(resource_list, &surf_cpu_resource);