1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "surf_private.h"
9 typedef s_surf_action_lmm_t s_surf_action_cpu_Cas01_t,
10 *surf_action_cpu_Cas01_t;
12 typedef struct cpu_Cas01 {
13 s_surf_resource_t generic_resource;
17 tmgr_trace_event_t power_event;
18 e_surf_resource_state_t state_current;
19 tmgr_trace_event_t state_event;
20 lmm_constraint_t constraint;
21 } s_cpu_Cas01_t, *cpu_Cas01_t;
23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf,
24 "Logging specific to the SURF CPU module");
28 surf_model_t surf_cpu_model = NULL;
29 lmm_system_t cpu_maxmin_system = NULL;
32 static xbt_swag_t cpu_running_action_set_that_does_not_need_being_checked =
35 static cpu_Cas01_t cpu_new(char *name, double power_peak,
37 tmgr_trace_t power_trace,
39 e_surf_resource_state_t state_initial,
40 tmgr_trace_t state_trace,
41 xbt_dict_t cpu_properties)
43 cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
44 xbt_assert(!surf_cpu_resource_by_name(name),
45 "Host '%s' declared several times in the platform file",
47 cpu->generic_resource.model = surf_cpu_model;
48 cpu->generic_resource.name = name;
49 cpu->generic_resource.properties = cpu_properties;
50 cpu->power_peak = power_peak;
51 xbt_assert(cpu->power_peak > 0, "Power has to be >0");
52 cpu->power_scale = power_scale;
54 xbt_assert(core>0,"Invalid number of cores %d",core);
57 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
59 cpu->state_current = state_initial;
62 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
65 lmm_constraint_new(cpu_maxmin_system, cpu,
66 cpu->core * cpu->power_scale * cpu->power_peak);
68 xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, cpu);
74 static void parse_cpu_init(void)
76 double power_peak = 0.0;
77 double power_scale = 0.0;
79 tmgr_trace_t power_trace = NULL;
80 e_surf_resource_state_t state_initial = SURF_RESOURCE_OFF;
81 tmgr_trace_t state_trace = NULL;
83 power_peak = get_cpu_power(A_surfxml_host_power);
84 surf_parse_get_double(&power_scale, A_surfxml_host_availability);
85 power_trace = tmgr_trace_new(A_surfxml_host_availability_file);
86 surf_parse_get_int(&core, A_surfxml_host_core);
88 xbt_assert((A_surfxml_host_state == A_surfxml_host_state_ON) ||
89 (A_surfxml_host_state == A_surfxml_host_state_OFF),
91 if (A_surfxml_host_state == A_surfxml_host_state_ON)
92 state_initial = SURF_RESOURCE_ON;
93 if (A_surfxml_host_state == A_surfxml_host_state_OFF)
94 state_initial = SURF_RESOURCE_OFF;
95 state_trace = tmgr_trace_new(A_surfxml_host_state_file);
97 cpu_new(xbt_strdup(A_surfxml_host_id), power_peak, power_scale,
98 power_trace, core, state_initial, state_trace, current_property_set);
99 current_property_set = NULL;
102 static void add_traces_cpu(void)
104 xbt_dict_cursor_t cursor = NULL;
105 char *trace_name, *elm;
107 static int called = 0;
114 /* connect all traces relative to hosts */
115 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
116 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
117 cpu_Cas01_t host = surf_cpu_resource_by_name(elm);
119 xbt_assert(host, "Host %s undefined", elm);
120 xbt_assert(trace, "Trace %s undefined", trace_name);
123 tmgr_history_add_trace(history, trace, 0.0, 0, host);
126 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
127 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
128 cpu_Cas01_t host = surf_cpu_resource_by_name(elm);
130 xbt_assert(host, "Host %s undefined", elm);
131 xbt_assert(trace, "Trace %s undefined", trace_name);
134 tmgr_history_add_trace(history, trace, 0.0, 0, host);
138 static void cpu_define_callbacks(const char *file)
140 surfxml_add_callback(ETag_surfxml_host_cb_list, parse_cpu_init);
141 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces_cpu);
144 static int cpu_resource_used(void *resource_id)
146 return lmm_constraint_used(cpu_maxmin_system,
147 ((cpu_Cas01_t) resource_id)->constraint);
150 static int cpu_action_unref(surf_action_t action)
153 if (!action->refcount) {
154 xbt_swag_remove(action, action->state_set);
155 if (((surf_action_cpu_Cas01_t) action)->variable)
156 lmm_variable_free(cpu_maxmin_system,
157 ((surf_action_cpu_Cas01_t) action)->variable);
159 if (action->category)
160 xbt_free(action->category);
162 surf_action_free(&action);
168 static void cpu_action_cancel(surf_action_t action)
170 surf_action_state_set(action, SURF_ACTION_FAILED);
174 static void cpu_action_state_set(surf_action_t action,
175 e_surf_action_state_t state)
177 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
178 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
179 /* lmm_variable_disable(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
180 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
183 surf_action_state_set(action, state);
187 static double cpu_share_resources(double now)
189 s_surf_action_cpu_Cas01_t action;
190 return generic_maxmin_share_resources(surf_cpu_model->
191 states.running_action_set,
192 xbt_swag_offset(action, variable),
193 cpu_maxmin_system, lmm_solve);
196 static void cpu_update_actions_state(double now, double delta)
198 surf_action_cpu_Cas01_t action = NULL;
199 surf_action_cpu_Cas01_t next_action = NULL;
200 xbt_swag_t running_actions = surf_cpu_model->states.running_action_set;
202 xbt_swag_foreach_safe(action, next_action, running_actions) {
204 if (TRACE_is_enabled()) {
206 lmm_constraint_id(lmm_get_cnst_from_var
207 (cpu_maxmin_system, action->variable, 0));
209 TRACE_surf_host_set_utilization(x->generic_resource.name,
210 action->generic_action.data,
211 (surf_action_t) action,
212 lmm_variable_getvalue
213 (action->variable), now - delta,
215 TRACE_last_timestamp_to_dump = now-delta;
218 double_update(&(action->generic_action.remains),
219 lmm_variable_getvalue(action->variable) * delta);
220 if (action->generic_action.max_duration != NO_MAX_DURATION)
221 double_update(&(action->generic_action.max_duration), delta);
222 if ((action->generic_action.remains <= 0) &&
223 (lmm_get_variable_weight(action->variable) > 0)) {
224 action->generic_action.finish = surf_get_clock();
225 cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
226 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
227 (action->generic_action.max_duration <= 0)) {
228 action->generic_action.finish = surf_get_clock();
229 cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
236 static void cpu_update_resource_state(void *id,
237 tmgr_trace_event_t event_type,
238 double value, double date)
240 cpu_Cas01_t cpu = id;
241 lmm_variable_t var = NULL;
242 lmm_element_t elem = NULL;
244 if (event_type == cpu->power_event) {
245 cpu->power_scale = value;
246 lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
247 cpu->core * cpu->power_scale * cpu->power_peak);
249 TRACE_surf_host_set_power(date, cpu->generic_resource.name,
250 cpu->core * cpu->power_scale * cpu->power_peak);
252 while ((var = lmm_get_var_from_cnst
253 (cpu_maxmin_system, cpu->constraint, &elem))) {
254 surf_action_cpu_Cas01_t action = lmm_variable_id(var);
255 lmm_update_variable_bound(cpu_maxmin_system, action->variable,
256 cpu->power_scale * cpu->power_peak);
258 if (tmgr_trace_event_free(event_type))
259 cpu->power_event = NULL;
260 } else if (event_type == cpu->state_event) {
262 cpu->state_current = SURF_RESOURCE_ON;
264 lmm_constraint_t cnst = cpu->constraint;
265 lmm_variable_t var = NULL;
266 lmm_element_t elem = NULL;
268 cpu->state_current = SURF_RESOURCE_OFF;
270 while ((var = lmm_get_var_from_cnst(cpu_maxmin_system, cnst, &elem))) {
271 surf_action_t action = lmm_variable_id(var);
273 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
274 surf_action_state_get(action) == SURF_ACTION_READY ||
275 surf_action_state_get(action) ==
276 SURF_ACTION_NOT_IN_THE_SYSTEM) {
277 action->finish = date;
278 cpu_action_state_set(action, SURF_ACTION_FAILED);
282 if (tmgr_trace_event_free(event_type))
283 cpu->state_event = NULL;
285 XBT_CRITICAL("Unknown event ! \n");
292 static surf_action_t cpu_execute(void *cpu, double size)
294 surf_action_cpu_Cas01_t action = NULL;
295 cpu_Cas01_t CPU = cpu;
297 XBT_IN("(%s,%g)", surf_resource_name(CPU), size);
299 surf_action_new(sizeof(s_surf_action_cpu_Cas01_t), size,
301 CPU->state_current != SURF_RESOURCE_ON);
303 action->suspended = 0; /* Should be useless because of the
304 calloc but it seems to help valgrind... */
306 action->variable = lmm_variable_new(cpu_maxmin_system, action,
307 action->generic_action.priority,
308 CPU->power_scale * CPU->power_peak, 1);
309 lmm_expand(cpu_maxmin_system, CPU->constraint, action->variable, 1.0);
311 return (surf_action_t) action;
314 static surf_action_t cpu_action_sleep(void *cpu, double duration)
316 surf_action_cpu_Cas01_t action = NULL;
319 duration = MAX(duration, MAXMIN_PRECISION);
321 XBT_IN("(%s,%g)", surf_resource_name(cpu), duration);
322 action = (surf_action_cpu_Cas01_t) cpu_execute(cpu, 1.0);
323 action->generic_action.max_duration = duration;
324 action->suspended = 2;
325 if (duration == NO_MAX_DURATION) {
326 /* Move to the *end* of the corresponding action set. This convention
327 is used to speed up update_resource_state */
328 xbt_swag_remove(action, ((surf_action_t) action)->state_set);
329 ((surf_action_t) action)->state_set =
330 cpu_running_action_set_that_does_not_need_being_checked;
331 xbt_swag_insert(action, ((surf_action_t) action)->state_set);
334 lmm_update_variable_weight(cpu_maxmin_system, action->variable, 0.0);
336 return (surf_action_t) action;
339 static void cpu_action_suspend(surf_action_t action)
341 XBT_IN("(%p)", action);
342 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
343 lmm_update_variable_weight(cpu_maxmin_system,
344 ((surf_action_cpu_Cas01_t)
345 action)->variable, 0.0);
346 ((surf_action_cpu_Cas01_t) action)->suspended = 1;
351 static void cpu_action_resume(surf_action_t action)
353 XBT_IN("(%p)", action);
354 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
355 lmm_update_variable_weight(cpu_maxmin_system,
356 ((surf_action_cpu_Cas01_t)
357 action)->variable, action->priority);
358 ((surf_action_cpu_Cas01_t) action)->suspended = 0;
363 static int cpu_action_is_suspended(surf_action_t action)
365 return (((surf_action_cpu_Cas01_t) action)->suspended == 1);
368 static void cpu_action_set_max_duration(surf_action_t action,
371 XBT_IN("(%p,%g)", action, duration);
372 action->max_duration = duration;
376 static void cpu_action_set_priority(surf_action_t action, double priority)
378 XBT_IN("(%p,%g)", action, priority);
379 action->priority = priority;
380 lmm_update_variable_weight(cpu_maxmin_system,
381 ((surf_action_cpu_Cas01_t) action)->variable,
388 static void cpu_action_set_category(surf_action_t action, const char *category)
390 XBT_IN("(%p,%s)", action, category);
391 action->category = xbt_strdup (category);
396 static double cpu_action_get_remains(surf_action_t action)
398 XBT_IN("(%p)", action);
399 return action->remains;
403 static e_surf_resource_state_t cpu_get_state(void *cpu)
405 return ((cpu_Cas01_t) cpu)->state_current;
408 static double cpu_get_speed(void *cpu, double load)
410 return load * (((cpu_Cas01_t) cpu)->power_peak);
413 static double cpu_get_available_speed(void *cpu)
415 /* number between 0 and 1 */
416 return ((cpu_Cas01_t) cpu)->power_scale;
419 static void cpu_create_resource(char *name, double power_peak,
421 tmgr_trace_t power_trace,
423 e_surf_resource_state_t state_initial,
424 tmgr_trace_t state_trace,
425 xbt_dict_t cpu_properties)
427 cpu_new(name, power_peak, power_scale, power_trace, core,
428 state_initial, state_trace, cpu_properties);
431 static void cpu_finalize(void)
433 lmm_system_free(cpu_maxmin_system);
434 cpu_maxmin_system = NULL;
436 surf_model_exit(surf_cpu_model);
437 surf_cpu_model = NULL;
439 xbt_swag_free(cpu_running_action_set_that_does_not_need_being_checked);
440 cpu_running_action_set_that_does_not_need_being_checked = NULL;
443 static void surf_cpu_model_init_internal(void)
445 s_surf_action_t action;
447 surf_cpu_model = surf_model_init();
449 cpu_running_action_set_that_does_not_need_being_checked =
450 xbt_swag_new(xbt_swag_offset(action, state_hookup));
452 surf_cpu_model->name = "CPU";
454 surf_cpu_model->action_unref = cpu_action_unref;
455 surf_cpu_model->action_cancel = cpu_action_cancel;
456 surf_cpu_model->action_state_set = cpu_action_state_set;
458 surf_cpu_model->model_private->resource_used = cpu_resource_used;
459 surf_cpu_model->model_private->share_resources = cpu_share_resources;
460 surf_cpu_model->model_private->update_actions_state =
461 cpu_update_actions_state;
462 surf_cpu_model->model_private->update_resource_state =
463 cpu_update_resource_state;
464 surf_cpu_model->model_private->finalize = cpu_finalize;
466 surf_cpu_model->suspend = cpu_action_suspend;
467 surf_cpu_model->resume = cpu_action_resume;
468 surf_cpu_model->is_suspended = cpu_action_is_suspended;
469 surf_cpu_model->set_max_duration = cpu_action_set_max_duration;
470 surf_cpu_model->set_priority = cpu_action_set_priority;
472 surf_cpu_model->set_category = cpu_action_set_category;
474 surf_cpu_model->get_remains = cpu_action_get_remains;
476 surf_cpu_model->extension.cpu.execute = cpu_execute;
477 surf_cpu_model->extension.cpu.sleep = cpu_action_sleep;
479 surf_cpu_model->extension.cpu.get_state = cpu_get_state;
480 surf_cpu_model->extension.cpu.get_speed = cpu_get_speed;
481 surf_cpu_model->extension.cpu.get_available_speed =
482 cpu_get_available_speed;
483 surf_cpu_model->extension.cpu.create_resource = cpu_create_resource;
484 surf_cpu_model->extension.cpu.add_traces = add_traces_cpu;
486 if (!cpu_maxmin_system)
487 cpu_maxmin_system = lmm_system_new();
490 /*********************************************************************/
491 /* Basic sharing model for CPU: that is where all this started... ;) */
492 /*********************************************************************/
493 /* @InProceedings{casanova01simgrid, */
494 /* author = "H. Casanova", */
495 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
496 /* and the Grid (CCGrid'01)", */
497 /* publisher = "IEEE Computer Society", */
498 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
502 /* note = "Available at */
503 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
505 void surf_cpu_model_init_Cas01(const char *filename)
509 surf_cpu_model_init_internal();
510 cpu_define_callbacks(filename);
511 xbt_dynar_push(model_list, &surf_cpu_model);