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;
16 tmgr_trace_event_t power_event;
17 e_surf_resource_state_t state_current;
18 tmgr_trace_event_t state_event;
19 lmm_constraint_t constraint;
20 } s_cpu_Cas01_t, *cpu_Cas01_t;
22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf,
23 "Logging specific to the SURF CPU module");
27 surf_model_t surf_cpu_model = NULL;
28 lmm_system_t cpu_maxmin_system = NULL;
31 static xbt_swag_t cpu_running_action_set_that_does_not_need_being_checked = NULL;
33 static cpu_Cas01_t cpu_new(char *name, double power_peak,
35 tmgr_trace_t power_trace,
36 e_surf_resource_state_t state_initial,
37 tmgr_trace_t state_trace,
38 xbt_dict_t cpu_properties)
40 cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
41 xbt_assert1(!surf_model_resource_by_name(surf_cpu_model, name),
42 "Host '%s' declared several times in the platform file", name);
43 cpu->generic_resource.model = surf_cpu_model;
44 cpu->generic_resource.name = name;
45 cpu->generic_resource.properties = cpu_properties;
46 cpu->power_peak = power_peak;
47 xbt_assert0(cpu->power_peak > 0, "Power has to be >0");
48 cpu->power_scale = power_scale;
51 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
53 cpu->state_current = state_initial;
56 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
59 lmm_constraint_new(cpu_maxmin_system, cpu,
60 cpu->power_scale * cpu->power_peak);
62 xbt_dict_set(surf_model_resource_set(surf_cpu_model), name, cpu,
65 TRACE_surf_host_declaration (name, cpu->power_scale * cpu->power_peak);
72 static void parse_cpu_init(void)
74 double power_peak = 0.0;
75 double power_scale = 0.0;
76 tmgr_trace_t power_trace = NULL;
77 e_surf_resource_state_t state_initial = SURF_RESOURCE_OFF;
78 tmgr_trace_t state_trace = NULL;
80 power_peak = get_cpu_power(A_surfxml_host_power);
81 surf_parse_get_double(&power_scale, A_surfxml_host_availability);
82 power_trace = tmgr_trace_new(A_surfxml_host_availability_file);
84 xbt_assert0((A_surfxml_host_state == A_surfxml_host_state_ON) ||
85 (A_surfxml_host_state == A_surfxml_host_state_OFF),
87 if (A_surfxml_host_state == A_surfxml_host_state_ON)
88 state_initial = SURF_RESOURCE_ON;
89 if (A_surfxml_host_state == A_surfxml_host_state_OFF)
90 state_initial = SURF_RESOURCE_OFF;
91 state_trace = tmgr_trace_new(A_surfxml_host_state_file);
93 current_property_set = xbt_dict_new();
94 cpu_new(xbt_strdup(A_surfxml_host_id), power_peak, power_scale,
95 power_trace, state_initial, state_trace, current_property_set);
99 static void add_traces_cpu(void)
101 xbt_dict_cursor_t cursor = NULL;
102 char *trace_name, *elm;
104 static int called = 0;
111 /* connect all traces relative to hosts */
112 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
113 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
114 cpu_Cas01_t host = surf_model_resource_by_name(surf_cpu_model, elm);
116 xbt_assert1(host, "Host %s undefined", elm);
117 xbt_assert1(trace, "Trace %s undefined", trace_name);
119 host->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, host);
122 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
123 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
124 cpu_Cas01_t host = surf_model_resource_by_name(surf_cpu_model, elm);
126 xbt_assert1(host, "Host %s undefined", elm);
127 xbt_assert1(trace, "Trace %s undefined", trace_name);
129 host->power_event = tmgr_history_add_trace(history, trace, 0.0, 0, host);
133 static void cpu_define_callbacks(const char *file)
135 surf_parse_reset_parser();
136 surfxml_add_callback(STag_surfxml_host_cb_list, parse_cpu_init);
137 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces_cpu);
140 static int cpu_resource_used(void *resource_id)
142 return lmm_constraint_used(cpu_maxmin_system,
143 ((cpu_Cas01_t) resource_id)->constraint);
146 static int cpu_action_unref(surf_action_t action)
149 if (!action->refcount) {
150 xbt_swag_remove(action, action->state_set);
151 if (((surf_action_cpu_Cas01_t) action)->variable)
152 lmm_variable_free(cpu_maxmin_system,
153 ((surf_action_cpu_Cas01_t) action)->variable);
160 static void cpu_action_cancel(surf_action_t action)
162 surf_action_state_set(action, SURF_ACTION_FAILED);
166 static void cpu_action_state_set(surf_action_t action,
167 e_surf_action_state_t state)
169 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
170 /* if(((surf_action_cpu_Cas01_t)action)->variable) { */
171 /* lmm_variable_disable(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
172 /* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
175 surf_action_state_set(action, state);
179 static double cpu_share_resources(double now)
181 s_surf_action_cpu_Cas01_t action;
182 return generic_maxmin_share_resources(surf_cpu_model->
183 states.running_action_set,
184 xbt_swag_offset(action, variable),
185 cpu_maxmin_system, lmm_solve);
188 static void cpu_update_actions_state(double now, double delta)
190 surf_action_cpu_Cas01_t action = NULL;
191 surf_action_cpu_Cas01_t next_action = NULL;
192 xbt_swag_t running_actions = surf_cpu_model->states.running_action_set;
194 xbt_swag_foreach_safe(action, next_action, running_actions) {
196 cpu_Cas01_t x = lmm_constraint_id(lmm_get_cnst_from_var (cpu_maxmin_system, action->variable, 0));
198 TRACE_surf_host_set_utilization (x->generic_resource.name,
199 action->generic_action.data, lmm_variable_getvalue(action->variable), now-delta, delta);
201 double_update(&(action->generic_action.remains),
202 lmm_variable_getvalue(action->variable) * delta);
203 if (action->generic_action.max_duration != NO_MAX_DURATION)
204 double_update(&(action->generic_action.max_duration), delta);
205 if ((action->generic_action.remains <= 0) &&
206 (lmm_get_variable_weight(action->variable) > 0)) {
207 action->generic_action.finish = surf_get_clock();
208 cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
209 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
210 (action->generic_action.max_duration <= 0)) {
211 action->generic_action.finish = surf_get_clock();
212 cpu_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
219 static void cpu_update_resource_state(void *id,
220 tmgr_trace_event_t event_type,
221 double value, double date)
223 cpu_Cas01_t cpu = id;
225 if (event_type == cpu->power_event) {
226 cpu->power_scale = value;
227 lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
228 cpu->power_scale * cpu->power_peak);
230 TRACE_surf_host_set_power (date, cpu->generic_resource.name, cpu->power_scale * cpu->power_peak);
232 if (tmgr_trace_event_free(event_type))
233 cpu->power_event = NULL;
234 } else if (event_type == cpu->state_event) {
236 cpu->state_current = SURF_RESOURCE_ON;
238 lmm_constraint_t cnst = cpu->constraint;
239 lmm_variable_t var = NULL;
240 lmm_element_t elem = NULL;
242 cpu->state_current = SURF_RESOURCE_OFF;
244 while ((var = lmm_get_var_from_cnst(cpu_maxmin_system, cnst, &elem))) {
245 surf_action_t action = lmm_variable_id(var);
247 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
248 surf_action_state_get(action) == SURF_ACTION_READY ||
249 surf_action_state_get(action) == SURF_ACTION_NOT_IN_THE_SYSTEM) {
250 action->finish = date;
251 cpu_action_state_set(action, SURF_ACTION_FAILED);
255 if (tmgr_trace_event_free(event_type))
256 cpu->state_event = NULL;
258 CRITICAL0("Unknown event ! \n");
265 static surf_action_t cpu_execute(void *cpu, double size)
267 surf_action_cpu_Cas01_t action = NULL;
268 cpu_Cas01_t CPU = cpu;
270 XBT_IN2("(%s,%g)", surf_resource_name(CPU), size);
272 surf_action_new(sizeof(s_surf_action_cpu_Cas01_t), size, surf_cpu_model,
273 CPU->state_current != SURF_RESOURCE_ON);
275 action->suspended = 0; /* Should be useless because of the
276 calloc but it seems to help valgrind... */
278 action->variable = lmm_variable_new(cpu_maxmin_system, action,
279 action->generic_action.priority,
281 lmm_expand(cpu_maxmin_system, CPU->constraint, action->variable, 1.0);
283 return (surf_action_t) action;
286 static surf_action_t cpu_action_sleep(void *cpu, double duration)
288 surf_action_cpu_Cas01_t action = NULL;
291 duration = MAX(duration, MAXMIN_PRECISION);
293 XBT_IN2("(%s,%g)", surf_resource_name(cpu), duration);
294 action = (surf_action_cpu_Cas01_t) cpu_execute(cpu, 1.0);
295 action->generic_action.max_duration = duration;
296 action->suspended = 2;
297 if (duration == NO_MAX_DURATION) {
298 /* Move to the *end* of the corresponding action set. This convention
299 is used to speed up update_resource_state */
300 xbt_swag_remove(action, ((surf_action_t) action)->state_set);
301 ((surf_action_t) action)->state_set =
302 cpu_running_action_set_that_does_not_need_being_checked;
303 xbt_swag_insert(action, ((surf_action_t) action)->state_set);
306 lmm_update_variable_weight(cpu_maxmin_system, action->variable, 0.0);
308 return (surf_action_t) action;
311 static void cpu_action_suspend(surf_action_t action)
313 XBT_IN1("(%p)", action);
314 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
315 lmm_update_variable_weight(cpu_maxmin_system,
316 ((surf_action_cpu_Cas01_t) action)->variable,
318 ((surf_action_cpu_Cas01_t) action)->suspended = 1;
323 static void cpu_action_resume(surf_action_t action)
325 XBT_IN1("(%p)", action);
326 if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
327 lmm_update_variable_weight(cpu_maxmin_system,
328 ((surf_action_cpu_Cas01_t) action)->variable,
330 ((surf_action_cpu_Cas01_t) action)->suspended = 0;
335 static int cpu_action_is_suspended(surf_action_t action)
337 return (((surf_action_cpu_Cas01_t) action)->suspended == 1);
340 static void cpu_action_set_max_duration(surf_action_t action, double duration)
342 XBT_IN2("(%p,%g)", action, duration);
343 action->max_duration = duration;
347 static void cpu_action_set_priority(surf_action_t action, double priority)
349 XBT_IN2("(%p,%g)", action, priority);
350 action->priority = priority;
351 lmm_update_variable_weight(cpu_maxmin_system,
352 ((surf_action_cpu_Cas01_t) action)->variable,
358 static double cpu_action_get_remains(surf_action_t action)
360 XBT_IN1("(%p)", action);
361 return action->remains;
365 static e_surf_resource_state_t cpu_get_state(void *cpu)
367 return ((cpu_Cas01_t) cpu)->state_current;
370 static double cpu_get_speed(void *cpu, double load)
372 return load * (((cpu_Cas01_t) cpu)->power_peak);
375 static double cpu_get_available_speed(void *cpu)
377 /* number between 0 and 1 */
378 return ((cpu_Cas01_t) cpu)->power_scale;
381 static void cpu_finalize(void)
383 lmm_system_free(cpu_maxmin_system);
384 cpu_maxmin_system = NULL;
386 surf_model_exit(surf_cpu_model);
387 surf_cpu_model = NULL;
389 xbt_swag_free(cpu_running_action_set_that_does_not_need_being_checked);
390 cpu_running_action_set_that_does_not_need_being_checked = NULL;
393 static void surf_cpu_model_init_internal(void)
395 s_surf_action_t action;
397 surf_cpu_model = surf_model_init();
399 cpu_running_action_set_that_does_not_need_being_checked =
400 xbt_swag_new(xbt_swag_offset(action, state_hookup));
402 surf_cpu_model->name = "CPU";
404 surf_cpu_model->action_unref = cpu_action_unref;
405 surf_cpu_model->action_cancel = cpu_action_cancel;
406 surf_cpu_model->action_state_set = cpu_action_state_set;
408 surf_cpu_model->model_private->resource_used = cpu_resource_used;
409 surf_cpu_model->model_private->share_resources = cpu_share_resources;
410 surf_cpu_model->model_private->update_actions_state = cpu_update_actions_state;
411 surf_cpu_model->model_private->update_resource_state =
412 cpu_update_resource_state;
413 surf_cpu_model->model_private->finalize = cpu_finalize;
415 surf_cpu_model->suspend = cpu_action_suspend;
416 surf_cpu_model->resume = cpu_action_resume;
417 surf_cpu_model->is_suspended = cpu_action_is_suspended;
418 surf_cpu_model->set_max_duration = cpu_action_set_max_duration;
419 surf_cpu_model->set_priority = cpu_action_set_priority;
420 surf_cpu_model->get_remains = cpu_action_get_remains;
422 surf_cpu_model->extension.cpu.execute = cpu_execute;
423 surf_cpu_model->extension.cpu.sleep = cpu_action_sleep;
425 surf_cpu_model->extension.cpu.get_state = cpu_get_state;
426 surf_cpu_model->extension.cpu.get_speed = cpu_get_speed;
427 surf_cpu_model->extension.cpu.get_available_speed = cpu_get_available_speed;
429 if (!cpu_maxmin_system)
430 cpu_maxmin_system = lmm_system_new();
433 /*********************************************************************/
434 /* Basic sharing model for CPU: that is where all this started... ;) */
435 /*********************************************************************/
436 /* @InProceedings{casanova01simgrid, */
437 /* author = "H. Casanova", */
438 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
439 /* and the Grid (CCGrid'01)", */
440 /* publisher = "IEEE Computer Society", */
441 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
445 /* note = "Available at */
446 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
448 void surf_cpu_model_init_Cas01(const char *filename)
452 surf_cpu_model_init_internal();
453 cpu_define_callbacks(filename);
454 xbt_dynar_push(model_list, &surf_cpu_model);