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 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_t) resource_id)->name;
101 static int resource_used(void *resource_id)
103 return lmm_constraint_used(maxmin_system,
104 ((cpu_t) resource_id)->constraint);
107 static void action_free(surf_action_t action)
109 xbt_swag_remove(action, action->state_set);
110 if(((surf_action_cpu_t)action)->variable)
111 lmm_variable_free(maxmin_system, ((surf_action_cpu_t)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 if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED))
131 if(((surf_action_cpu_t)action)->variable) {
132 lmm_variable_disable(maxmin_system, ((surf_action_cpu_t)action)->variable);
133 ((surf_action_cpu_t)action)->variable = NULL;
136 surf_action_change_state(action, state);
140 static double share_resources(double now)
142 s_surf_action_cpu_t action;
143 return generic_maxmin_share_resources(surf_cpu_resource->common_public->
144 states.running_action_set,
145 xbt_swag_offset(action, variable));
148 static void update_actions_state(double now, double delta)
150 surf_action_cpu_t action = NULL;
151 surf_action_cpu_t next_action = NULL;
152 xbt_swag_t running_actions =
153 surf_cpu_resource->common_public->states.running_action_set;
154 xbt_swag_t failed_actions =
155 surf_cpu_resource->common_public->states.failed_action_set;
157 xbt_swag_foreach_safe(action, next_action, running_actions) {
158 surf_double_update(&(action->generic_action.remains),
159 lmm_variable_getvalue(action->variable) * delta);
160 if (action->generic_action.max_duration != NO_MAX_DURATION)
161 surf_double_update(&(action->generic_action.max_duration), delta);
162 if ((action->generic_action.remains <= 0) &&
163 (lmm_get_variable_weight(action->variable)>0)) {
164 action->generic_action.finish = surf_get_clock();
165 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
166 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
167 (action->generic_action.max_duration <= 0)) {
168 action->generic_action.finish = surf_get_clock();
169 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
170 } else { /* Need to check that none of the resource has failed */
171 lmm_constraint_t cnst = NULL;
176 lmm_get_cnst_from_var(maxmin_system, action->variable,
178 cpu = lmm_constraint_id(cnst);
179 if (cpu->state_current == SURF_CPU_OFF) {
180 action->generic_action.finish = surf_get_clock();
181 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
188 /* xbt_swag_foreach_safe(action, next_action, failed_actions) { */
189 /* lmm_variable_disable(maxmin_system, action->variable); */
195 static void update_resource_state(void *id,
196 tmgr_trace_event_t event_type,
201 if (event_type == cpu->power_event) {
202 cpu->power_current = value;
203 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
204 cpu->power_current * cpu->power_scale);
205 } else if (event_type == cpu->state_event) {
207 cpu->state_current = SURF_CPU_ON;
209 cpu->state_current = SURF_CPU_OFF;
211 CRITICAL0("Unknown event ! \n");
218 static surf_action_t execute(void *cpu, double size)
220 surf_action_cpu_t action = NULL;
223 action = xbt_new0(s_surf_action_cpu_t, 1);
225 action->generic_action.cost = size;
226 action->generic_action.remains = size;
227 action->generic_action.max_duration = NO_MAX_DURATION;
228 action->generic_action.start = surf_get_clock();
229 action->generic_action.finish = -1.0;
230 action->generic_action.resource_type =
231 (surf_resource_t) surf_cpu_resource;
233 if (CPU->state_current == SURF_CPU_ON)
234 action->generic_action.state_set =
235 surf_cpu_resource->common_public->states.running_action_set;
237 action->generic_action.state_set =
238 surf_cpu_resource->common_public->states.failed_action_set;
239 xbt_swag_insert(action, action->generic_action.state_set);
241 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
242 lmm_expand(maxmin_system, CPU->constraint, action->variable,
245 return (surf_action_t) action;
248 static surf_action_t action_sleep(void *cpu, double duration)
250 surf_action_cpu_t action = NULL;
252 action = (surf_action_cpu_t) execute(cpu, 1.0);
253 action->generic_action.max_duration = duration;
254 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
256 return (surf_action_t) action;
259 static void action_suspend(surf_action_t action)
261 lmm_update_variable_weight(maxmin_system,
262 ((surf_action_cpu_t) action)->variable, 0.0);
265 static void action_resume(surf_action_t action)
267 lmm_update_variable_weight(maxmin_system,
268 ((surf_action_cpu_t) action)->variable, 1.0);
271 static int action_is_suspended(surf_action_t action)
273 return (lmm_get_variable_weight(((surf_action_cpu_t) action)->variable) == 0.0);
276 static e_surf_cpu_state_t get_state(void *cpu)
278 return ((cpu_t) cpu)->state_current;
281 static void finalize(void)
283 xbt_dict_free(&cpu_set);
284 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
285 xbt_swag_free(surf_cpu_resource->common_public->states.
287 xbt_swag_free(surf_cpu_resource->common_public->states.
289 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
290 xbt_free(surf_cpu_resource->common_public);
291 xbt_free(surf_cpu_resource->common_private);
292 xbt_free(surf_cpu_resource->extension_public);
294 xbt_free(surf_cpu_resource);
295 surf_cpu_resource = NULL;
298 static void surf_cpu_resource_init_internal(void)
300 s_surf_action_t action;
302 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
304 surf_cpu_resource->common_private =
305 xbt_new0(s_surf_resource_private_t, 1);
306 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
308 surf_cpu_resource->extension_public =
309 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
311 surf_cpu_resource->common_public->states.ready_action_set =
312 xbt_swag_new(xbt_swag_offset(action, state_hookup));
313 surf_cpu_resource->common_public->states.running_action_set =
314 xbt_swag_new(xbt_swag_offset(action, state_hookup));
315 surf_cpu_resource->common_public->states.failed_action_set =
316 xbt_swag_new(xbt_swag_offset(action, state_hookup));
317 surf_cpu_resource->common_public->states.done_action_set =
318 xbt_swag_new(xbt_swag_offset(action, state_hookup));
320 surf_cpu_resource->common_public->name_service = name_service;
321 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
322 surf_cpu_resource->common_public->action_get_state =
323 surf_action_get_state;
324 surf_cpu_resource->common_public->action_free = action_free;
325 surf_cpu_resource->common_public->action_cancel = action_cancel;
326 surf_cpu_resource->common_public->action_recycle = action_recycle;
327 surf_cpu_resource->common_public->action_change_state =
329 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
330 surf_cpu_resource->common_public->name = "CPU";
332 surf_cpu_resource->common_private->resource_used = resource_used;
333 surf_cpu_resource->common_private->share_resources = share_resources;
334 surf_cpu_resource->common_private->update_actions_state =
335 update_actions_state;
336 surf_cpu_resource->common_private->update_resource_state =
337 update_resource_state;
338 surf_cpu_resource->common_private->finalize = finalize;
340 surf_cpu_resource->common_public->suspend = action_suspend;
341 surf_cpu_resource->common_public->resume = action_resume;
342 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
344 surf_cpu_resource->extension_public->execute = execute;
345 surf_cpu_resource->extension_public->sleep = action_sleep;
347 surf_cpu_resource->extension_public->get_state = get_state;
349 cpu_set = xbt_dict_new();
351 xbt_assert0(maxmin_system, "surf_init has to be called first!");
354 /*********************************************************************/
355 /* Basic sharing model for CPU: that is where all this started... ;) */
356 /*********************************************************************/
357 /* @InProceedings{casanova01simgrid, */
358 /* author = "H. Casanova", */
359 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
360 /* and the Grid (CCGrid'01)", */
361 /* publisher = "IEEE Computer Society", */
362 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
366 /* note = "Available at */
367 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
369 void surf_cpu_resource_init_Cas01(const char *filename)
371 if (surf_cpu_resource)
373 surf_cpu_resource_init_internal();
374 parse_file(filename);
375 xbt_dynar_push(resource_list, &surf_cpu_resource);