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_Cas01_t)cpu)->name);
23 static cpu_Cas01_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_Cas01_t cpu = xbt_new0(s_cpu_Cas01_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_Cas01_t) resource_id)->name;
101 static int resource_used(void *resource_id)
103 return lmm_constraint_used(maxmin_system,
104 ((cpu_Cas01_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_Cas01_t)action)->variable)
111 lmm_variable_free(maxmin_system, ((surf_action_cpu_Cas01_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_Cas01_t)action)->variable) {
132 lmm_variable_disable(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
133 ((surf_action_cpu_Cas01_t)action)->variable = NULL;
136 surf_action_change_state(action, state);
140 static double share_resources(double now)
142 s_surf_action_cpu_Cas01_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_Cas01_t action = NULL;
151 surf_action_cpu_Cas01_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;
173 cpu_Cas01_t cpu = 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);
191 static void update_resource_state(void *id,
192 tmgr_trace_event_t event_type,
195 cpu_Cas01_t cpu = id;
197 if (event_type == cpu->power_event) {
198 cpu->power_current = value;
199 lmm_update_constraint_bound(maxmin_system, cpu->constraint,
200 cpu->power_current * cpu->power_scale);
201 } else if (event_type == cpu->state_event) {
203 cpu->state_current = SURF_CPU_ON;
205 cpu->state_current = SURF_CPU_OFF;
207 CRITICAL0("Unknown event ! \n");
214 static surf_action_t execute(void *cpu, double size)
216 surf_action_cpu_Cas01_t action = NULL;
217 cpu_Cas01_t CPU = cpu;
219 action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
221 action->generic_action.cost = size;
222 action->generic_action.remains = size;
223 action->generic_action.max_duration = NO_MAX_DURATION;
224 action->generic_action.start = surf_get_clock();
225 action->generic_action.finish = -1.0;
226 action->generic_action.resource_type =
227 (surf_resource_t) surf_cpu_resource;
229 if (CPU->state_current == SURF_CPU_ON)
230 action->generic_action.state_set =
231 surf_cpu_resource->common_public->states.running_action_set;
233 action->generic_action.state_set =
234 surf_cpu_resource->common_public->states.failed_action_set;
235 xbt_swag_insert(action, action->generic_action.state_set);
237 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
238 lmm_expand(maxmin_system, CPU->constraint, action->variable,
241 return (surf_action_t) action;
244 static surf_action_t action_sleep(void *cpu, double duration)
246 surf_action_cpu_Cas01_t action = NULL;
248 action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
249 action->generic_action.max_duration = duration;
250 lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
252 return (surf_action_t) action;
255 static void action_suspend(surf_action_t action)
257 lmm_update_variable_weight(maxmin_system,
258 ((surf_action_cpu_Cas01_t) action)->variable, 0.0);
261 static void action_resume(surf_action_t action)
263 lmm_update_variable_weight(maxmin_system,
264 ((surf_action_cpu_Cas01_t) action)->variable, 1.0);
267 static int action_is_suspended(surf_action_t action)
269 return (lmm_get_variable_weight(((surf_action_cpu_Cas01_t) action)->variable) == 0.0);
272 static e_surf_cpu_state_t get_state(void *cpu)
274 return ((cpu_Cas01_t) cpu)->state_current;
277 static void finalize(void)
279 xbt_dict_free(&cpu_set);
280 xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
281 xbt_swag_free(surf_cpu_resource->common_public->states.
283 xbt_swag_free(surf_cpu_resource->common_public->states.
285 xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
286 xbt_free(surf_cpu_resource->common_public);
287 xbt_free(surf_cpu_resource->common_private);
288 xbt_free(surf_cpu_resource->extension_public);
290 xbt_free(surf_cpu_resource);
291 surf_cpu_resource = NULL;
294 static void surf_cpu_resource_init_internal(void)
296 s_surf_action_t action;
298 surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
300 surf_cpu_resource->common_private =
301 xbt_new0(s_surf_resource_private_t, 1);
302 surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
304 surf_cpu_resource->extension_public =
305 xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
307 surf_cpu_resource->common_public->states.ready_action_set =
308 xbt_swag_new(xbt_swag_offset(action, state_hookup));
309 surf_cpu_resource->common_public->states.running_action_set =
310 xbt_swag_new(xbt_swag_offset(action, state_hookup));
311 surf_cpu_resource->common_public->states.failed_action_set =
312 xbt_swag_new(xbt_swag_offset(action, state_hookup));
313 surf_cpu_resource->common_public->states.done_action_set =
314 xbt_swag_new(xbt_swag_offset(action, state_hookup));
316 surf_cpu_resource->common_public->name_service = name_service;
317 surf_cpu_resource->common_public->get_resource_name = get_resource_name;
318 surf_cpu_resource->common_public->action_get_state =
319 surf_action_get_state;
320 surf_cpu_resource->common_public->action_free = action_free;
321 surf_cpu_resource->common_public->action_cancel = action_cancel;
322 surf_cpu_resource->common_public->action_recycle = action_recycle;
323 surf_cpu_resource->common_public->action_change_state =
325 surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
326 surf_cpu_resource->common_public->name = "CPU";
328 surf_cpu_resource->common_private->resource_used = resource_used;
329 surf_cpu_resource->common_private->share_resources = share_resources;
330 surf_cpu_resource->common_private->update_actions_state =
331 update_actions_state;
332 surf_cpu_resource->common_private->update_resource_state =
333 update_resource_state;
334 surf_cpu_resource->common_private->finalize = finalize;
336 surf_cpu_resource->common_public->suspend = action_suspend;
337 surf_cpu_resource->common_public->resume = action_resume;
338 surf_cpu_resource->common_public->is_suspended = action_is_suspended;
340 surf_cpu_resource->extension_public->execute = execute;
341 surf_cpu_resource->extension_public->sleep = action_sleep;
343 surf_cpu_resource->extension_public->get_state = get_state;
345 cpu_set = xbt_dict_new();
347 xbt_assert0(maxmin_system, "surf_init has to be called first!");
350 /*********************************************************************/
351 /* Basic sharing model for CPU: that is where all this started... ;) */
352 /*********************************************************************/
353 /* @InProceedings{casanova01simgrid, */
354 /* author = "H. Casanova", */
355 /* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
356 /* and the Grid (CCGrid'01)", */
357 /* publisher = "IEEE Computer Society", */
358 /* title = "Simgrid: {A} Toolkit for the Simulation of Application */
362 /* note = "Available at */
363 /* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
365 void surf_cpu_resource_init_Cas01(const char *filename)
367 if (surf_cpu_resource)
369 surf_cpu_resource_init_internal();
370 parse_file(filename);
371 xbt_dynar_push(resource_list, &surf_cpu_resource);