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)
91 xbt_dict_get(cpu_set, name, &cpu);
96 static const char *get_resource_name(void *resource_id)
98 return ((cpu_Cas01_t) resource_id)->name;
101 static int resource_used(void *resource_id)
103 return lmm_constraint_used(maxmin_system,
104 ((cpu_Cas01_t) resource_id)->constraint);
107 static int action_free(surf_action_t action)
111 xbt_swag_remove(action, action->state_set);
112 if(((surf_action_cpu_Cas01_t)action)->variable)
113 lmm_variable_free(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
120 static void action_use(surf_action_t action)
125 static void action_cancel(surf_action_t action)
127 surf_action_change_state(action, SURF_ACTION_FAILED);
131 static void action_recycle(surf_action_t action)
136 static void action_change_state(surf_action_t action,
137 e_surf_action_state_t state)
139 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
140 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
141 /* lmm_variable_disable(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
142 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
145 surf_action_change_state(action, state);
149 static double share_resources(double now)
151 s_surf_action_cpu_Cas01_t action;
152 return generic_maxmin_share_resources(surf_cpu_resource->common_public->
153 states.running_action_set,
154 xbt_swag_offset(action, variable));
157 static void update_actions_state(double now, double delta)
159 surf_action_cpu_Cas01_t action = NULL;
160 surf_action_cpu_Cas01_t next_action = NULL;
161 xbt_swag_t running_actions =
162 surf_cpu_resource->common_public->states.running_action_set;
163 xbt_swag_t failed_actions =
164 surf_cpu_resource->common_public->states.failed_action_set;
166 xbt_swag_foreach_safe(action, next_action, running_actions) {
167 surf_double_update(&(action->generic_action.remains),
168 lmm_variable_getvalue(action->variable) * delta);
169 if (action->generic_action.max_duration != NO_MAX_DURATION)
170 surf_double_update(&(action->generic_action.max_duration), delta);
171 if ((action->generic_action.remains <= 0) &&
172 (lmm_get_variable_weight(action->variable)>0)) {
173 action->generic_action.finish = surf_get_clock();
174 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
175 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
176 (action->generic_action.max_duration <= 0)) {
177 action->generic_action.finish = surf_get_clock();
178 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
179 } else { /* Need to check that none of the resource has failed */
180 lmm_constraint_t cnst = NULL;
182 cpu_Cas01_t cpu = NULL;
185 lmm_get_cnst_from_var(maxmin_system, action->variable,
187 cpu = lmm_constraint_id(cnst);
188 if (cpu->state_current == SURF_CPU_OFF) {
189 action->generic_action.finish = surf_get_clock();
190 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
200 static void update_resource_state(void *id,
201 tmgr_trace_event_t event_type,
204 cpu_Cas01_t cpu = id;
206 if (event_type == cpu->power_event) {
207 cpu->power_current = value;
208 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
209 cpu->power_current * cpu->power_scale);
210 } else if (event_type == cpu->state_event) {
212 cpu->state_current = SURF_CPU_ON;
214 cpu->state_current = SURF_CPU_OFF;
216 CRITICAL0("Unknown event ! \n");
223 static surf_action_t execute(void *cpu, double size)
225 surf_action_cpu_Cas01_t action = NULL;
226 cpu_Cas01_t CPU = cpu;
228 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
230 action->generic_action.using = 1;
231 action->generic_action.cost = size;
232 action->generic_action.remains = size;
233 action->generic_action.max_duration = NO_MAX_DURATION;
234 action->generic_action.start = surf_get_clock();
235 action->generic_action.finish = -1.0;
236 action->generic_action.resource_type =
237 (surf_resource_t) surf_cpu_resource;
239 if (CPU->state_current == SURF_CPU_ON)
240 action->generic_action.state_set =
241 surf_cpu_resource->common_public->states.running_action_set;
243 action->generic_action.state_set =
244 surf_cpu_resource->common_public->states.failed_action_set;
245 xbt_swag_insert(action, action->generic_action.state_set);
247 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -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, 1.0);
277 static int action_is_suspended(surf_action_t action)
279 return (lmm_get_variable_weight(((surf_action_cpu_Cas01_t) action)->variable) == 0.0);
282 static void action_set_max_duration(surf_action_t action, double duration)
284 action->max_duration = duration;
287 static e_surf_cpu_state_t get_state(void *cpu)
289 return ((cpu_Cas01_t) cpu)->state_current;
292 static double get_speed(void *cpu, double load)
294 return load*(((cpu_Cas01_t) cpu)->power_scale);
297 static void finalize(void)
299 xbt_dict_free(&cpu_set);
300 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
301 xbt_swag_free(surf_cpu_resource->common_public->states.
303 xbt_swag_free(surf_cpu_resource->common_public->states.
305 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
306 free(surf_cpu_resource->common_public);
307 free(surf_cpu_resource->common_private);
308 free(surf_cpu_resource->extension_public);
310 free(surf_cpu_resource);
311 surf_cpu_resource = NULL;
314 static void surf_cpu_resource_init_internal(void)
316 s_surf_action_t action;
318 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
320 surf_cpu_resource->common_private =
321 xbt_new0(s_surf_resource_private_t, 1);
322 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
324 surf_cpu_resource->extension_public =
325 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
327 surf_cpu_resource->common_public->states.ready_action_set =
328 xbt_swag_new(xbt_swag_offset(action, state_hookup));
329 surf_cpu_resource->common_public->states.running_action_set =
330 xbt_swag_new(xbt_swag_offset(action, state_hookup));
331 surf_cpu_resource->common_public->states.failed_action_set =
332 xbt_swag_new(xbt_swag_offset(action, state_hookup));
333 surf_cpu_resource->common_public->states.done_action_set =
334 xbt_swag_new(xbt_swag_offset(action, state_hookup));
336 surf_cpu_resource->common_public->name_service = name_service;
337 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
338 surf_cpu_resource->common_public->action_get_state =
339 surf_action_get_state;
340 surf_cpu_resource->common_public->action_free = action_free;
341 surf_cpu_resource->common_public->action_use = action_use;
342 surf_cpu_resource->common_public->action_cancel = action_cancel;
343 surf_cpu_resource->common_public->action_recycle = action_recycle;
344 surf_cpu_resource->common_public->action_change_state =
346 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
347 surf_cpu_resource->common_public->name = "CPU";
349 surf_cpu_resource->common_private->resource_used = resource_used;
350 surf_cpu_resource->common_private->share_resources = share_resources;
351 surf_cpu_resource->common_private->update_actions_state =
352 update_actions_state;
353 surf_cpu_resource->common_private->update_resource_state =
354 update_resource_state;
355 surf_cpu_resource->common_private->finalize = finalize;
357 surf_cpu_resource->common_public->suspend = action_suspend;
358 surf_cpu_resource->common_public->resume = action_resume;
359 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
360 surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
362 surf_cpu_resource->extension_public->execute = execute;
363 surf_cpu_resource->extension_public->sleep = action_sleep;
365 surf_cpu_resource->extension_public->get_state = get_state;
366 surf_cpu_resource->extension_public->get_speed = get_speed;
368 cpu_set = xbt_dict_new();
370 xbt_assert0(maxmin_system, "surf_init has to be called first!");
373 /*********************************************************************/
374 /* Basic sharing model for CPU: that is where all this started... ;) */
375 /*********************************************************************/
376 /* @InProceedings{casanova01simgrid, */
377 /* author = "H. Casanova", */
378 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
379 /* and the Grid (CCGrid'01)", */
380 /* publisher = "IEEE Computer Society", */
381 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
385 /* note = "Available at */
386 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
388 void surf_cpu_resource_init_Cas01(const char *filename)
390 if (surf_cpu_resource)
392 surf_cpu_resource_init_internal();
393 parse_file(filename);
394 xbt_dynar_push(resource_list, &surf_cpu_resource);