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 xbt_free(((cpu_t)cpu)->name);
23 static cpu_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_t cpu = xbt_new0(s_cpu_t, 1);
31 cpu->resource = (surf_resource_t) surf_cpu_resource;
33 cpu->power_scale = power_scale;
34 cpu->power_current = power_initial;
37 tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
39 cpu->state_current = state_initial;
42 tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
45 lmm_constraint_new(maxmin_system, cpu,
46 cpu->power_current * cpu->power_scale);
48 xbt_dict_set(cpu_set, name, cpu, cpu_free);
53 static void parse_cpu(void)
56 double power_scale = 0.0;
57 double power_initial = 0.0;
58 tmgr_trace_t power_trace = NULL;
59 e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
60 tmgr_trace_t state_trace = NULL;
62 name = xbt_strdup(A_cpu_name);
63 surf_parse_get_double(&power_scale,A_cpu_power);
64 surf_parse_get_double(&power_initial,A_cpu_availability);
65 surf_parse_get_trace(&power_trace,A_cpu_availability_file);
67 xbt_assert0((A_cpu_state==A_cpu_state_ON)||(A_cpu_state==A_cpu_state_OFF),
69 if (A_cpu_state==A_cpu_state_ON) state_initial = SURF_CPU_ON;
70 if (A_cpu_state==A_cpu_state_OFF) state_initial = SURF_CPU_OFF;
71 surf_parse_get_trace(&state_trace,A_cpu_state_file);
73 cpu_new(name, power_scale, power_initial, power_trace, state_initial,
77 static void parse_file(const char *file)
79 surf_parse_reset_parser();
80 ETag_cpu_fun=parse_cpu;
81 surf_parse_open(file);
82 xbt_assert1((!surf_parse()),"Parse error in %s",file);
86 static void *name_service(const char *name)
90 xbt_dict_get(cpu_set, name, &cpu);
95 static const char *get_resource_name(void *resource_id)
97 return ((cpu_t) resource_id)->name;
100 static int resource_used(void *resource_id)
102 return lmm_constraint_used(maxmin_system,
103 ((cpu_t) resource_id)->constraint);
106 static void action_free(surf_action_t action)
108 surf_action_cpu_t Action = (surf_action_cpu_t) action;
110 xbt_swag_remove(action, action->state_set);
111 lmm_variable_free(maxmin_system, Action->variable);
117 static void action_cancel(surf_action_t action)
122 static void action_recycle(surf_action_t action)
127 static void action_change_state(surf_action_t action,
128 e_surf_action_state_t state)
130 surf_action_change_state(action, state);
134 static double share_resources(double now)
136 s_surf_action_cpu_t action;
137 return generic_maxmin_share_resources(surf_cpu_resource->common_public->
138 states.running_action_set,
139 xbt_swag_offset(action, variable));
142 static void update_actions_state(double now, double delta)
144 surf_action_cpu_t action = NULL;
145 surf_action_cpu_t next_action = NULL;
146 xbt_swag_t running_actions =
147 surf_cpu_resource->common_public->states.running_action_set;
148 xbt_swag_t failed_actions =
149 surf_cpu_resource->common_public->states.failed_action_set;
151 xbt_swag_foreach_safe(action, next_action, running_actions) {
152 surf_double_update(&(action->generic_action.remains),
153 lmm_variable_getvalue(action->variable) * delta);
154 if (action->generic_action.max_duration != NO_MAX_DURATION)
155 surf_double_update(&(action->generic_action.max_duration), delta);
156 if ((action->generic_action.remains <= 0) &&
157 (lmm_get_variable_weight(action->variable)>0)) {
158 action->generic_action.finish = surf_get_clock();
159 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
160 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
161 (action->generic_action.max_duration <= 0)) {
162 action->generic_action.finish = surf_get_clock();
163 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
164 } else { /* Need to check that none of the resource has failed */
165 lmm_constraint_t cnst = NULL;
170 lmm_get_cnst_from_var(maxmin_system, action->variable,
172 cpu = lmm_constraint_id(cnst);
173 if (cpu->state_current == SURF_CPU_OFF) {
174 action->generic_action.finish = surf_get_clock();
175 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
182 xbt_swag_foreach_safe(action, next_action, failed_actions) {
183 lmm_variable_disable(maxmin_system, action->variable);
189 static void update_resource_state(void *id,
190 tmgr_trace_event_t event_type,
195 if (event_type == cpu->power_event) {
196 cpu->power_current = value;
197 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
198 cpu->power_current * cpu->power_scale);
199 } else if (event_type == cpu->state_event) {
201 cpu->state_current = SURF_CPU_ON;
203 cpu->state_current = SURF_CPU_OFF;
205 CRITICAL0("Unknown event ! \n");
212 static surf_action_t execute(void *cpu, double size)
214 surf_action_cpu_t action = NULL;
217 action = xbt_new0(s_surf_action_cpu_t, 1);
219 action->generic_action.cost = size;
220 action->generic_action.remains = size;
221 action->generic_action.max_duration = NO_MAX_DURATION;
222 action->generic_action.start = surf_get_clock();
223 action->generic_action.finish = -1.0;
224 action->generic_action.resource_type =
225 (surf_resource_t) surf_cpu_resource;
227 if (CPU->state_current == SURF_CPU_ON)
228 action->generic_action.state_set =
229 surf_cpu_resource->common_public->states.running_action_set;
231 action->generic_action.state_set =
232 surf_cpu_resource->common_public->states.failed_action_set;
233 xbt_swag_insert(action, action->generic_action.state_set);
235 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
236 lmm_expand(maxmin_system, CPU->constraint, action->variable,
239 return (surf_action_t) action;
242 static surf_action_t action_sleep(void *cpu, double duration)
244 surf_action_cpu_t action = NULL;
246 action = (surf_action_cpu_t) execute(cpu, 1.0);
247 action->generic_action.max_duration = duration;
248 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
250 return (surf_action_t) action;
253 static void action_suspend(surf_action_t action)
255 lmm_update_variable_weight(maxmin_system,
256 ((surf_action_cpu_t) action)->variable, 0.0);
259 static void action_resume(surf_action_t action)
261 lmm_update_variable_weight(maxmin_system,
262 ((surf_action_cpu_t) action)->variable, 1.0);
265 static int action_is_suspended(surf_action_t action)
267 return (lmm_get_variable_weight(((surf_action_cpu_t) action)->variable) == 0.0);
270 static e_surf_cpu_state_t get_state(void *cpu)
272 return ((cpu_t) cpu)->state_current;
275 static void finalize(void)
277 xbt_dict_free(&cpu_set);
278 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
279 xbt_swag_free(surf_cpu_resource->common_public->states.
281 xbt_swag_free(surf_cpu_resource->common_public->states.
283 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
284 xbt_free(surf_cpu_resource->common_public);
285 xbt_free(surf_cpu_resource->common_private);
286 xbt_free(surf_cpu_resource->extension_public);
288 xbt_free(surf_cpu_resource);
289 surf_cpu_resource = NULL;
292 static void surf_cpu_resource_init_internal(void)
294 s_surf_action_t action;
296 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
298 surf_cpu_resource->common_private =
299 xbt_new0(s_surf_resource_private_t, 1);
300 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
302 surf_cpu_resource->extension_public =
303 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
305 surf_cpu_resource->common_public->states.ready_action_set =
306 xbt_swag_new(xbt_swag_offset(action, state_hookup));
307 surf_cpu_resource->common_public->states.running_action_set =
308 xbt_swag_new(xbt_swag_offset(action, state_hookup));
309 surf_cpu_resource->common_public->states.failed_action_set =
310 xbt_swag_new(xbt_swag_offset(action, state_hookup));
311 surf_cpu_resource->common_public->states.done_action_set =
312 xbt_swag_new(xbt_swag_offset(action, state_hookup));
314 surf_cpu_resource->common_public->name_service = name_service;
315 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
316 surf_cpu_resource->common_public->action_get_state =
317 surf_action_get_state;
318 surf_cpu_resource->common_public->action_free = action_free;
319 surf_cpu_resource->common_public->action_cancel = action_cancel;
320 surf_cpu_resource->common_public->action_recycle = action_recycle;
321 surf_cpu_resource->common_public->action_change_state =
323 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
324 surf_cpu_resource->common_public->name = "CPU";
326 surf_cpu_resource->common_private->resource_used = resource_used;
327 surf_cpu_resource->common_private->share_resources = share_resources;
328 surf_cpu_resource->common_private->update_actions_state =
329 update_actions_state;
330 surf_cpu_resource->common_private->update_resource_state =
331 update_resource_state;
332 surf_cpu_resource->common_private->finalize = finalize;
334 surf_cpu_resource->common_public->suspend = action_suspend;
335 surf_cpu_resource->common_public->resume = action_resume;
336 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
338 surf_cpu_resource->extension_public->execute = execute;
339 surf_cpu_resource->extension_public->sleep = action_sleep;
341 surf_cpu_resource->extension_public->get_state = get_state;
343 cpu_set = xbt_dict_new();
345 xbt_assert0(maxmin_system, "surf_init has to be called first!");
348 /*********************************************************************/
349 /* Basic sharing model for CPU: that is where all this started... ;) */
350 /*********************************************************************/
351 /* @InProceedings{casanova01simgrid, */
352 /* author = "H. Casanova", */
353 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
354 /* and the Grid (CCGrid'01)", */
355 /* publisher = "IEEE Computer Society", */
356 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
360 /* note = "Available at */
361 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
363 void surf_cpu_resource_init_Cas01(const char *filename)
365 if (surf_cpu_resource)
367 surf_cpu_resource_init_internal();
368 parse_file(filename);
369 xbt_dynar_push(resource_list, &surf_cpu_resource);