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(surf_cpu, surf,
11 "Logging specific to the SURF CPU module");
13 surf_cpu_resource_t surf_cpu_resource = NULL;
14 lmm_system_t cpu_maxmin_system = NULL;
16 xbt_dict_t cpu_set = NULL;
18 static void cpu_free(void *cpu)
20 free(((cpu_Cas01_t)cpu)->name);
24 static cpu_Cas01_t cpu_new(char *name, double power_scale,
26 tmgr_trace_t power_trace,
27 e_surf_cpu_state_t state_initial,
28 tmgr_trace_t state_trace)
30 cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
32 cpu->resource = (surf_resource_t) surf_cpu_resource;
34 cpu->power_scale = power_scale;
35 xbt_assert0(cpu->power_scale>0,"Power has to be >0");
36 cpu->power_current = power_initial;
39 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
41 cpu->state_current = state_initial;
44 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
47 lmm_constraint_new(cpu_maxmin_system, cpu,
48 cpu->power_current * cpu->power_scale);
50 xbt_dict_set(cpu_set, name, cpu, cpu_free);
55 static void parse_cpu(void)
58 double power_scale = 0.0;
59 double power_initial = 0.0;
60 tmgr_trace_t power_trace = NULL;
61 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
62 tmgr_trace_t state_trace = NULL;
64 name = xbt_strdup(A_surfxml_cpu_name);
65 surf_parse_get_double(&power_scale,A_surfxml_cpu_power);
66 surf_parse_get_double(&power_initial,A_surfxml_cpu_availability);
67 surf_parse_get_trace(&power_trace,A_surfxml_cpu_availability_file);
69 xbt_assert0((A_surfxml_cpu_state==A_surfxml_cpu_state_ON)||
70 (A_surfxml_cpu_state==A_surfxml_cpu_state_OFF),
72 if (A_surfxml_cpu_state==A_surfxml_cpu_state_ON) state_initial = SURF_CPU_ON;
73 if (A_surfxml_cpu_state==A_surfxml_cpu_state_OFF) state_initial = SURF_CPU_OFF;
74 surf_parse_get_trace(&state_trace,A_surfxml_cpu_state_file);
76 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
80 static void parse_file(const char *file)
82 surf_parse_reset_parser();
83 ETag_surfxml_cpu_fun=parse_cpu;
84 surf_parse_open(file);
85 xbt_assert1((!surf_parse()),"Parse error in %s",file);
89 static void *name_service(const char *name)
91 return xbt_dict_get_or_null(cpu_set, name);
94 static const char *get_resource_name(void *resource_id)
96 return ((cpu_Cas01_t) resource_id)->name;
99 static int resource_used(void *resource_id)
101 return lmm_constraint_used(cpu_maxmin_system,
102 ((cpu_Cas01_t) resource_id)->constraint);
105 static int action_free(surf_action_t action)
109 xbt_swag_remove(action, action->state_set);
110 if(((surf_action_cpu_Cas01_t)action)->variable)
111 lmm_variable_free(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
118 static void action_use(surf_action_t action)
123 static void action_cancel(surf_action_t action)
125 surf_action_change_state(action, SURF_ACTION_FAILED);
129 static void action_recycle(surf_action_t action)
134 static void action_change_state(surf_action_t action,
135 e_surf_action_state_t state)
137 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
138 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
139 /* lmm_variable_disable(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
140 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
143 surf_action_change_state(action, state);
147 static double share_resources(double now)
149 s_surf_action_cpu_Cas01_t action;
150 return generic_maxmin_share_resources2(surf_cpu_resource->common_public->
151 states.running_action_set,
152 xbt_swag_offset(action, variable),
153 cpu_maxmin_system, lmm_solve);
156 static void update_actions_state(double now, double delta)
158 surf_action_cpu_Cas01_t action = NULL;
159 surf_action_cpu_Cas01_t next_action = NULL;
160 xbt_swag_t running_actions =
161 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;
167 xbt_swag_foreach_safe(action, next_action, running_actions) {
168 double_update(&(action->generic_action.remains),
169 lmm_variable_getvalue(action->variable) * delta);
170 if (action->generic_action.max_duration != NO_MAX_DURATION)
171 double_update(&(action->generic_action.max_duration), delta);
172 if ((action->generic_action.remains <= 0) &&
173 (lmm_get_variable_weight(action->variable)>0)) {
174 action->generic_action.finish = surf_get_clock();
175 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
176 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
177 (action->generic_action.max_duration <= 0)) {
178 action->generic_action.finish = surf_get_clock();
179 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
180 } else { /* Need to check that none of the resource has failed */
181 lmm_constraint_t cnst = NULL;
183 cpu_Cas01_t cpu = NULL;
186 lmm_get_cnst_from_var(cpu_maxmin_system, action->variable,
188 cpu = lmm_constraint_id(cnst);
189 if (cpu->state_current == SURF_CPU_OFF) {
190 action->generic_action.finish = surf_get_clock();
191 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
201 static void update_resource_state(void *id,
202 tmgr_trace_event_t event_type,
205 cpu_Cas01_t cpu = id;
207 if (event_type == cpu->power_event) {
208 cpu->power_current = value;
209 lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
210 cpu->power_current * cpu->power_scale);
211 } else if (event_type == cpu->state_event) {
213 cpu->state_current = SURF_CPU_ON;
215 cpu->state_current = SURF_CPU_OFF;
217 CRITICAL0("Unknown event ! \n");
224 static surf_action_t execute(void *cpu, double size)
226 surf_action_cpu_Cas01_t action = NULL;
227 cpu_Cas01_t CPU = cpu;
229 XBT_IN2("(%s,%g)",CPU->name,size);
230 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
232 action->generic_action.using = 1;
233 action->generic_action.cost = size;
234 action->generic_action.remains = size;
235 action->generic_action.priority = 1.0;
236 action->generic_action.max_duration = NO_MAX_DURATION;
237 action->generic_action.start = surf_get_clock();
238 action->generic_action.finish = -1.0;
239 action->generic_action.resource_type =
240 (surf_resource_t) surf_cpu_resource;
241 action->suspended = 0; /* Should be useless because of the
242 calloc but it seems to help valgrind... */
244 if (CPU->state_current == SURF_CPU_ON)
245 action->generic_action.state_set =
246 surf_cpu_resource->common_public->states.running_action_set;
248 action->generic_action.state_set =
249 surf_cpu_resource->common_public->states.failed_action_set;
250 xbt_swag_insert(action, action->generic_action.state_set);
252 action->variable = lmm_variable_new(cpu_maxmin_system, action,
253 action->generic_action.priority, -1.0, 1);
254 lmm_expand(cpu_maxmin_system, CPU->constraint, action->variable,
257 return (surf_action_t) action;
260 static surf_action_t action_sleep(void *cpu, double duration)
262 surf_action_cpu_Cas01_t action = NULL;
264 XBT_IN2("(%s,%g)",((cpu_Cas01_t)cpu)->name,duration);
265 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
266 action->generic_action.max_duration = duration;
267 action->suspended = 2;
268 lmm_update_variable_weight(cpu_maxmin_system, action->variable, 0.0);
270 return (surf_action_t) action;
273 static void action_suspend(surf_action_t action)
275 XBT_IN1("(%p)",action);
276 if(((surf_action_cpu_Cas01_t) action)->suspended != 2) {
277 lmm_update_variable_weight(cpu_maxmin_system,
278 ((surf_action_cpu_Cas01_t) action)->variable, 0.0);
279 ((surf_action_cpu_Cas01_t) action)->suspended = 1;
284 static void action_resume(surf_action_t action)
286 XBT_IN1("(%p)",action);
287 if(((surf_action_cpu_Cas01_t) action)->suspended != 2) {
288 lmm_update_variable_weight(cpu_maxmin_system,
289 ((surf_action_cpu_Cas01_t) action)->variable,
291 ((surf_action_cpu_Cas01_t) action)->suspended=0;
296 static int action_is_suspended(surf_action_t action)
298 return (((surf_action_cpu_Cas01_t) action)->suspended==1);
301 static void action_set_max_duration(surf_action_t action, double duration)
303 XBT_IN2("(%p,%g)",action,duration);
304 action->max_duration = duration;
308 static void action_set_priority(surf_action_t action, double priority)
310 XBT_IN2("(%p,%g)",action,priority);
311 action->priority = priority;
315 static e_surf_cpu_state_t get_state(void *cpu)
317 return ((cpu_Cas01_t) cpu)->state_current;
320 static double get_speed(void *cpu, double load)
322 return load*(((cpu_Cas01_t) cpu)->power_scale);
325 static double get_available_speed(void *cpu)
327 /* number between 0 and 1 */
328 return ((cpu_Cas01_t) cpu)->power_current;
331 static void finalize(void)
333 xbt_dict_free(&cpu_set);
334 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
335 xbt_swag_free(surf_cpu_resource->common_public->states.
337 xbt_swag_free(surf_cpu_resource->common_public->states.
339 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
340 free(surf_cpu_resource->common_public);
341 free(surf_cpu_resource->common_private);
342 free(surf_cpu_resource->extension_public);
344 free(surf_cpu_resource);
345 surf_cpu_resource = NULL;
348 static void surf_cpu_resource_init_internal(void)
350 s_surf_action_t action;
352 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
354 surf_cpu_resource->common_private =
355 xbt_new0(s_surf_resource_private_t, 1);
356 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
358 surf_cpu_resource->extension_public =
359 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
361 surf_cpu_resource->common_public->states.ready_action_set =
362 xbt_swag_new(xbt_swag_offset(action, state_hookup));
363 surf_cpu_resource->common_public->states.running_action_set =
364 xbt_swag_new(xbt_swag_offset(action, state_hookup));
365 surf_cpu_resource->common_public->states.failed_action_set =
366 xbt_swag_new(xbt_swag_offset(action, state_hookup));
367 surf_cpu_resource->common_public->states.done_action_set =
368 xbt_swag_new(xbt_swag_offset(action, state_hookup));
370 surf_cpu_resource->common_public->name_service = name_service;
371 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
372 surf_cpu_resource->common_public->action_get_state =
373 surf_action_get_state;
374 surf_cpu_resource->common_public->action_get_start_time =
375 surf_action_get_start_time;
376 surf_cpu_resource->common_public->action_get_finish_time =
377 surf_action_get_finish_time;
378 surf_cpu_resource->common_public->action_free = action_free;
379 surf_cpu_resource->common_public->action_use = action_use;
380 surf_cpu_resource->common_public->action_cancel = action_cancel;
381 surf_cpu_resource->common_public->action_recycle = action_recycle;
382 surf_cpu_resource->common_public->action_change_state =
384 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
385 surf_cpu_resource->common_public->name = "CPU";
387 surf_cpu_resource->common_private->resource_used = resource_used;
388 surf_cpu_resource->common_private->share_resources = share_resources;
389 surf_cpu_resource->common_private->update_actions_state =
390 update_actions_state;
391 surf_cpu_resource->common_private->update_resource_state =
392 update_resource_state;
393 surf_cpu_resource->common_private->finalize = finalize;
395 surf_cpu_resource->common_public->suspend = action_suspend;
396 surf_cpu_resource->common_public->resume = action_resume;
397 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
398 surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
399 surf_cpu_resource->common_public->set_priority = action_set_priority;
400 surf_cpu_resource->extension_public->execute = execute;
401 surf_cpu_resource->extension_public->sleep = action_sleep;
403 surf_cpu_resource->extension_public->get_state = get_state;
404 surf_cpu_resource->extension_public->get_speed = get_speed;
405 surf_cpu_resource->extension_public->get_available_speed = get_available_speed;
407 cpu_set = xbt_dict_new();
409 if(!cpu_maxmin_system)
410 cpu_maxmin_system = lmm_system_new();
413 /*********************************************************************/
414 /* Basic sharing model for CPU: that is where all this started... ;) */
415 /*********************************************************************/
416 /* @InProceedings{casanova01simgrid, */
417 /* author = "H. Casanova", */
418 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
419 /* and the Grid (CCGrid'01)", */
420 /* publisher = "IEEE Computer Society", */
421 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
425 /* note = "Available at */
426 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
428 void surf_cpu_resource_init_Cas01(const char *filename)
430 if (surf_cpu_resource)
432 surf_cpu_resource_init_internal();
433 parse_file(filename);
434 xbt_dynar_push(resource_list, &surf_cpu_resource);