1 /* Authors: Arnaud Legrand */
3 /* This program is free software; you can redistribute it and/or modify it
4 under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "cpu_private.h"
9 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(cpu, surf,
10 "Logging specific to the SURF CPU module");
12 surf_cpu_resource_t surf_cpu_resource = NULL;
14 static xbt_dict_t cpu_set = NULL;
16 static void cpu_free(void *CPU)
18 /* cpu_t cpu = CPU; */
19 /* lmm_constraint_free(maxmin_system,cpu->constraint); */
20 /* Clean somewhere else ! */
25 /* power_scale is the basic power of the cpu when the cpu is
26 completely available. power_initial is therefore expected to be
27 comprised between 0.0 and 1.0, just as the values of power_trace.
28 state_trace values mean SURF_CPU_ON if >0 and SURF_CPU_OFF
31 static cpu_t cpu_new(const char *name, xbt_maxmin_float_t power_scale,
32 xbt_maxmin_float_t power_initial,
33 tmgr_trace_t power_trace,
34 e_surf_cpu_state_t state_initial,
35 tmgr_trace_t state_trace)
37 cpu_t cpu = xbt_new0(s_cpu_t, 1);
39 cpu->resource = (surf_resource_t) surf_cpu_resource;
41 cpu->power_scale = power_scale;
42 cpu->power_current = power_initial;
43 /* cpu->power_trace = power_trace; */
46 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
48 cpu->state_current = state_initial;
49 /* cpu->state_trace = state_trace; */
52 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
55 lmm_constraint_new(maxmin_system, cpu,
56 cpu->power_current * cpu->power_scale);
58 xbt_dict_set(cpu_set, name, cpu, cpu_free);
64 Semantic: name scale initial power initial state
65 power trace state trace
67 Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
68 Type: string float float string ON/OFF string
71 static void parse_cpu(void)
75 xbt_maxmin_float_t power_scale = 0.0;
76 xbt_maxmin_float_t power_initial = 0.0;
77 tmgr_trace_t power_trace = NULL;;
78 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
79 tmgr_trace_t state_trace = NULL;
81 name = xbt_strdup(surf_parse_text);
83 surf_parse_float(&power_scale);
84 surf_parse_float(&power_initial);
85 surf_parse_trace(&power_trace);
87 token = surf_parse(); /* state_initial */
88 xbt_assert1((token == TOKEN_WORD), "Parse error line %d", line_pos);
89 if (strcmp(surf_parse_text, "ON") == 0)
90 state_initial = SURF_CPU_ON;
91 else if (strcmp(surf_parse_text, "OFF") == 0)
92 state_initial = SURF_CPU_OFF;
94 CRITICAL2("Invalid cpu state (line %d): %s neq ON or OFF\n", line_pos,
99 surf_parse_trace(&state_trace);
101 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
105 static void parse_file(const char *file)
107 e_surf_token_t token;
109 find_section(file, "CPU");
112 token = surf_parse();
114 if (token == TOKEN_END_SECTION)
116 if (token == TOKEN_NEWLINE)
119 if (token == TOKEN_WORD)
122 CRITICAL1("Parse error line %d\n", line_pos);
127 close_section("CPU");
130 static void *name_service(const char *name)
134 xbt_dict_get(cpu_set, name, &cpu);
139 static const char *get_resource_name(void *resource_id)
141 return ((cpu_t) resource_id)->name;
144 static int resource_used(void *resource_id)
146 return lmm_constraint_used(maxmin_system,
147 ((cpu_t) resource_id)->constraint);
150 static void action_free(surf_action_t action)
152 surf_action_cpu_t Action = (surf_action_cpu_t) action;
154 xbt_swag_remove(action, action->state_set);
155 lmm_variable_free(maxmin_system, Action->variable);
161 static void action_cancel(surf_action_t action)
166 static void action_recycle(surf_action_t action)
171 static void action_change_state(surf_action_t action,
172 e_surf_action_state_t state)
174 surf_action_change_state(action, state);
178 static xbt_heap_float_t share_resources(xbt_heap_float_t now)
180 surf_action_cpu_t action = NULL;
181 xbt_swag_t running_actions =
182 surf_cpu_resource->common_public->states.running_action_set;
183 xbt_maxmin_float_t min = -1;
184 xbt_maxmin_float_t value = -1;
185 lmm_solve(maxmin_system);
187 action = xbt_swag_getFirst(running_actions);
190 value = lmm_variable_getvalue(action->variable);
191 min = action->generic_action.remains / value;
193 xbt_swag_foreach(action, running_actions) {
194 value = action->generic_action.remains /
195 lmm_variable_getvalue(action->variable);
203 static void update_actions_state(xbt_heap_float_t now,
204 xbt_heap_float_t delta)
206 surf_action_cpu_t action = NULL;
207 surf_action_cpu_t next_action = NULL;
208 xbt_swag_t running_actions =
209 surf_cpu_resource->common_public->states.running_action_set;
210 xbt_swag_t failed_actions =
211 surf_cpu_resource->common_public->states.failed_action_set;
213 xbt_swag_foreach_safe(action, next_action, running_actions) {
214 action->generic_action.remains -=
215 lmm_variable_getvalue(action->variable) * delta;
216 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
217 if (action->generic_action.remains <= 0) {
218 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
219 } else { /* Need to check that none of the resource has failed */
220 lmm_constraint_t cnst = NULL;
225 lmm_get_cnst_from_var(maxmin_system, action->variable,
227 cpu = lmm_constraint_id(cnst);
228 if (cpu->state_current == SURF_CPU_OFF) {
229 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
236 xbt_swag_foreach_safe(action, next_action, failed_actions) {
237 lmm_variable_disable(maxmin_system, action->variable);
243 static void update_resource_state(void *id,
244 tmgr_trace_event_t event_type,
245 xbt_maxmin_float_t value)
249 /* printf("[" XBT_HEAP_FLOAT_T "] Asking to update CPU \"%s\" with value " */
250 /* XBT_MAXMIN_FLOAT_T " for event %p\n", surf_get_clock(), cpu->name, */
251 /* value, event_type); */
253 if (event_type == cpu->power_event) {
254 cpu->power_current = value;
255 lmm_update_constraint_bound(maxmin_system,cpu->constraint,
256 cpu->power_current * cpu->power_scale);
257 } else if (event_type == cpu->state_event) {
259 cpu->state_current = SURF_CPU_ON;
261 cpu->state_current = SURF_CPU_OFF;
263 CRITICAL0("Unknown event ! \n");
270 static surf_action_t execute(void *cpu, xbt_maxmin_float_t size)
272 surf_action_cpu_t action = NULL;
275 action = xbt_new0(s_surf_action_cpu_t, 1);
277 action->generic_action.cost = size;
278 action->generic_action.remains = size;
279 action->generic_action.start = -1.0;
280 action->generic_action.finish = -1.0;
281 /* action->generic_action.callback = cpu; */
282 action->generic_action.callback = NULL;
283 action->generic_action.resource_type =
284 (surf_resource_t) surf_cpu_resource;
286 if (CPU->state_current == SURF_CPU_ON)
287 action->generic_action.state_set =
288 surf_cpu_resource->common_public->states.running_action_set;
290 action->generic_action.state_set =
291 surf_cpu_resource->common_public->states.failed_action_set;
292 xbt_swag_insert(action, action->generic_action.state_set);
294 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
295 lmm_expand(maxmin_system, ((cpu_t) cpu)->constraint, action->variable,
298 return (surf_action_t) action;
301 static e_surf_cpu_state_t get_state(void *cpu)
306 static void finalize(void)
308 xbt_dict_free(&cpu_set);
309 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
310 xbt_swag_free(surf_cpu_resource->common_public->states.
312 xbt_swag_free(surf_cpu_resource->common_public->states.
314 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
315 xbt_free(surf_cpu_resource->common_public);
316 xbt_free(surf_cpu_resource->common_private);
317 xbt_free(surf_cpu_resource->extension_public);
319 xbt_free(surf_cpu_resource);
320 surf_cpu_resource = NULL;
323 static void surf_cpu_resource_init_internal(void)
325 s_surf_action_t action;
327 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
329 surf_cpu_resource->common_private =
330 xbt_new0(s_surf_resource_private_t, 1);
331 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
332 /* surf_cpu_resource->extension_private = xbt_new0(s_surf_cpu_resource_extension_private_t,1); */
333 surf_cpu_resource->extension_public =
334 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
336 surf_cpu_resource->common_public->states.ready_action_set =
337 xbt_swag_new(xbt_swag_offset(action, state_hookup));
338 surf_cpu_resource->common_public->states.running_action_set =
339 xbt_swag_new(xbt_swag_offset(action, state_hookup));
340 surf_cpu_resource->common_public->states.failed_action_set =
341 xbt_swag_new(xbt_swag_offset(action, state_hookup));
342 surf_cpu_resource->common_public->states.done_action_set =
343 xbt_swag_new(xbt_swag_offset(action, state_hookup));
345 surf_cpu_resource->common_public->name_service = name_service;
346 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
347 surf_cpu_resource->common_public->action_get_state =
348 surf_action_get_state;
349 surf_cpu_resource->common_public->action_free = action_free;
350 surf_cpu_resource->common_public->action_cancel = action_cancel;
351 surf_cpu_resource->common_public->action_recycle = action_recycle;
352 surf_cpu_resource->common_public->action_change_state =
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->extension_public->execute = execute;
364 surf_cpu_resource->extension_public->get_state = get_state;
366 cpu_set = xbt_dict_new();
368 xbt_assert0(maxmin_system, "surf_init has to be called first!");
371 void surf_cpu_resource_init(const char *filename)
373 surf_cpu_resource_init_internal();
374 parse_file(filename);
375 xbt_dynar_push(resource_list, &surf_cpu_resource);