1 /* Copyright (c) 2009-2011, 2013. 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 "cpu_cas01.hpp"
10 #include "maxmin_private.h"
11 #include "simgrid/sg_config.h"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu_cas, surf_cpu,
15 "Logging specific to the SURF CPU IMPROVED module");
19 cpu_running_action_set_that_does_not_need_being_checked = NULL;
25 static void parse_cpu_init(sg_platf_host_cbarg_t host){
26 ((CpuCas01ModelPtr)surf_cpu_model_pm)->parseInit(host);
29 static void cpu_add_traces_cpu(){
30 surf_cpu_model_pm->addTraces();
33 static void cpu_define_callbacks()
35 sg_platf_host_add_cb(parse_cpu_init);
36 sg_platf_postparse_add_cb(cpu_add_traces_cpu);
42 void surf_cpu_model_init_Cas01()
44 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
46 xbt_assert(!surf_cpu_model_pm);
47 xbt_assert(!surf_cpu_model_vm);
49 if (!strcmp(optim, "TI")) {
50 surf_cpu_model_init_ti();
54 surf_cpu_model_pm = new CpuCas01Model();
55 surf_cpu_model_vm = new CpuCas01Model();
57 cpu_define_callbacks();
58 ModelPtr model_pm = static_cast<ModelPtr>(surf_cpu_model_pm);
59 ModelPtr model_vm = static_cast<ModelPtr>(surf_cpu_model_vm);
60 xbt_dynar_push(model_list, &model_pm);
61 xbt_dynar_push(model_list, &model_vm);
64 CpuCas01Model::CpuCas01Model() : CpuModel("cpu")
66 ActionPtr action = NULL;
67 ActionLmmPtr actionlmm = NULL;
69 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
70 int select = xbt_cfg_get_boolean(_sg_cfg_set, "cpu/maxmin_selective_update");
72 if (!strcmp(optim, "Full")) {
73 p_updateMechanism = UM_FULL;
74 m_selectiveUpdate = select;
75 } else if (!strcmp(optim, "Lazy")) {
76 p_updateMechanism = UM_LAZY;
77 m_selectiveUpdate = 1;
78 xbt_assert((select == 1)
80 (xbt_cfg_is_default_value
81 (_sg_cfg_set, "cpu/maxmin_selective_update")),
82 "Disabling selective update while using the lazy update mechanism is dumb!");
84 xbt_die("Unsupported optimization (%s) for this model", optim);
87 cpu_running_action_set_that_does_not_need_being_checked =
88 xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
90 if (p_updateMechanism == UM_LAZY) {
91 shareResources = &CpuCas01Model::shareResourcesLazy;
92 updateActionsState = &CpuCas01Model::updateActionsStateLazy;
94 } else if (p_updateMechanism == UM_FULL) {
95 shareResources = &CpuCas01Model::shareResourcesFull;
96 updateActionsState = &CpuCas01Model::updateActionsStateFull;
98 xbt_die("Invalid cpu update mechanism!");
100 if (!p_maxminSystem) {
101 p_maxminSystem = lmm_system_new(m_selectiveUpdate);
104 if (p_updateMechanism == UM_LAZY) {
105 p_actionHeap = xbt_heap_new(8, NULL);
106 xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
107 p_modifiedSet = xbt_swag_new(xbt_swag_offset(*actionlmm, p_actionListHookup));
108 p_maxminSystem->keep_track = p_modifiedSet;
112 CpuCas01Model::~CpuCas01Model()
114 lmm_system_free(p_maxminSystem);
115 p_maxminSystem = NULL;
118 xbt_heap_free(p_actionHeap);
119 xbt_swag_free(p_modifiedSet);
121 surf_cpu_model_pm = NULL;
123 xbt_swag_free(cpu_running_action_set_that_does_not_need_being_checked);
124 cpu_running_action_set_that_does_not_need_being_checked = NULL;
127 void CpuCas01Model::parseInit(sg_platf_host_cbarg_t host)
129 createResource(host->id,
140 CpuCas01LmmPtr CpuCas01Model::createResource(const char *name, xbt_dynar_t power_peak,
141 int pstate, double power_scale,
142 tmgr_trace_t power_trace, int core,
143 e_surf_resource_state_t state_initial,
144 tmgr_trace_t state_trace,
145 xbt_dict_t cpu_properties)
148 xbt_assert(!surf_cpu_resource_priv(surf_cpu_resource_by_name(name)),
149 "Host '%s' declared several times in the platform file",
151 xbt_assert(power_peak > 0, "Power has to be >0");
152 xbt_assert(core > 0, "Invalid number of cores %d", core);
154 cpu = new CpuCas01Lmm(this, name, power_peak, pstate, power_scale, power_trace, core, state_initial, state_trace, cpu_properties);
155 xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, static_cast<ResourcePtr>(cpu));
157 return (CpuCas01LmmPtr) xbt_lib_get_elm_or_null(host_lib, name);
160 double CpuCas01Model::shareResourcesFull(double /*now*/)
162 return Model::shareResourcesMaxMin(p_runningActionSet,
163 p_maxminSystem, lmm_solve);
166 void CpuCas01Model::addTraces()
168 xbt_dict_cursor_t cursor = NULL;
169 char *trace_name, *elm;
170 static int called = 0;
175 /* connect all traces relative to hosts */
176 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
177 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
178 CpuCas01LmmPtr host = static_cast<CpuCas01LmmPtr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
180 xbt_assert(host, "Host %s undefined", elm);
181 xbt_assert(trace, "Trace %s undefined", trace_name);
184 tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(host));
187 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
188 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
189 CpuCas01LmmPtr host = dynamic_cast<CpuCas01LmmPtr>(static_cast<ResourcePtr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm))));
191 xbt_assert(host, "Host %s undefined", elm);
192 xbt_assert(trace, "Trace %s undefined", trace_name);
195 tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(host));
202 CpuCas01Lmm::CpuCas01Lmm(CpuCas01ModelPtr model, const char *name, xbt_dynar_t powerPeak,
203 int pstate, double powerScale, tmgr_trace_t powerTrace, int core,
204 e_surf_resource_state_t stateInitial, tmgr_trace_t stateTrace,
205 xbt_dict_t properties) :
206 CpuLmm(model, name, properties), Resource(model, name, properties) {
207 m_powerPeak = xbt_dynar_get_as(powerPeak, pstate, double);
208 p_powerPeakList = powerPeak;
211 p_energy = xbt_new(s_energy_cpu_cas01_t, 1);
212 p_energy->total_energy = 0;
213 p_energy->power_range_watts_list = getWattsRangeList();
214 p_energy->last_updated = surf_get_clock();
216 XBT_DEBUG("CPU create: peak=%f, pstate=%d", m_powerPeak, m_pstate);
218 m_powerScale = powerScale;
220 p_stateCurrent = stateInitial;
222 p_powerEvent = tmgr_history_add_trace(history, powerTrace, 0.0, 0, static_cast<ResourcePtr>(this));
225 p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, static_cast<ResourcePtr>(this));
227 p_constraint = lmm_constraint_new(p_model->p_maxminSystem, this, m_core * m_powerScale * m_powerPeak);
230 CpuCas01Lmm::~CpuCas01Lmm(){
232 xbt_dynar_t power_tuple = NULL;
233 xbt_dynar_foreach(p_energy->power_range_watts_list, iter, power_tuple)
234 xbt_dynar_free(&power_tuple);
235 xbt_dynar_free(&p_energy->power_range_watts_list);
236 xbt_dynar_free(&p_powerPeakList);
241 bool CpuCas01Lmm::isUsed()
243 return lmm_constraint_used(p_model->p_maxminSystem, p_constraint);
246 void CpuCas01Lmm::updateState(tmgr_trace_event_t event_type, double value, double date)
248 lmm_variable_t var = NULL;
249 lmm_element_t elem = NULL;
251 if (event_type == p_powerEvent) {
252 m_powerScale = value;
253 lmm_update_constraint_bound(surf_cpu_model_pm->p_maxminSystem, p_constraint,
254 m_core * m_powerScale *
257 TRACE_surf_host_set_power(date, m_name,
258 m_core * m_powerScale *
261 while ((var = lmm_get_var_from_cnst
262 (surf_cpu_model_pm->p_maxminSystem, p_constraint, &elem))) {
263 CpuCas01ActionLmmPtr action = static_cast<CpuCas01ActionLmmPtr>(static_cast<ActionLmmPtr>(lmm_variable_id(var)));
265 lmm_update_variable_bound(surf_cpu_model_pm->p_maxminSystem,
267 m_powerScale * m_powerPeak);
269 if (tmgr_trace_event_free(event_type))
271 } else if (event_type == p_stateEvent) {
273 if(p_stateCurrent == SURF_RESOURCE_OFF)
274 xbt_dynar_push_as(host_that_restart, char*, (char *)m_name);
275 p_stateCurrent = SURF_RESOURCE_ON;
277 lmm_constraint_t cnst = p_constraint;
279 p_stateCurrent = SURF_RESOURCE_OFF;
281 while ((var = lmm_get_var_from_cnst(surf_cpu_model_pm->p_maxminSystem, cnst, &elem))) {
282 ActionLmmPtr action = static_cast<ActionLmmPtr>(lmm_variable_id(var));
284 if (action->getState() == SURF_ACTION_RUNNING ||
285 action->getState() == SURF_ACTION_READY ||
286 action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
287 action->m_finish = date;
288 action->setState(SURF_ACTION_FAILED);
292 if (tmgr_trace_event_free(event_type))
295 XBT_CRITICAL("Unknown event ! \n");
302 ActionPtr CpuCas01Lmm::execute(double size)
305 XBT_IN("(%s,%g)", m_name, size);
306 CpuCas01ActionLmmPtr action = new CpuCas01ActionLmm(surf_cpu_model_pm, size, p_stateCurrent != SURF_RESOURCE_ON);
308 action->m_suspended = 0; /* Should be useless because of the
309 calloc but it seems to help valgrind... */
312 lmm_variable_new(surf_cpu_model_pm->p_maxminSystem, static_cast<ActionLmmPtr>(action),
314 m_powerScale * m_powerPeak, 1);
315 if (surf_cpu_model_pm->p_updateMechanism == UM_LAZY) {
316 action->m_indexHeap = -1;
317 action->m_lastUpdate = surf_get_clock();
318 action->m_lastValue = 0.0;
320 lmm_expand(surf_cpu_model_pm->p_maxminSystem, p_constraint,
321 action->p_variable, 1.0);
326 ActionPtr CpuCas01Lmm::sleep(double duration)
329 duration = MAX(duration, MAXMIN_PRECISION);
331 XBT_IN("(%s,%g)", m_name, duration);
332 CpuCas01ActionLmmPtr action = dynamic_cast<CpuCas01ActionLmmPtr>(execute(1.0));
334 // FIXME: sleep variables should not consume 1.0 in lmm_expand
335 action->m_maxDuration = duration;
336 action->m_suspended = 2;
337 if (duration == NO_MAX_DURATION) {
338 /* Move to the *end* of the corresponding action set. This convention
339 is used to speed up update_resource_state */
340 xbt_swag_remove(static_cast<ActionPtr>(action), action->p_stateSet);
341 action->p_stateSet = cpu_running_action_set_that_does_not_need_being_checked;
342 xbt_swag_insert(static_cast<ActionPtr>(action), action->p_stateSet);
345 lmm_update_variable_weight(surf_cpu_model_pm->p_maxminSystem,
346 action->p_variable, 0.0);
347 if (surf_cpu_model_pm->p_updateMechanism == UM_LAZY) { // remove action from the heap
348 action->heapRemove(surf_cpu_model_pm->p_actionHeap);
349 // this is necessary for a variable with weight 0 since such
350 // variables are ignored in lmm and we need to set its max_duration
351 // correctly at the next call to share_resources
352 xbt_swag_insert_at_head(static_cast<ActionLmmPtr>(action), surf_cpu_model_pm->p_modifiedSet);
359 xbt_dynar_t CpuCas01Lmm::getWattsRangeList()
361 xbt_dynar_t power_range_list;
362 xbt_dynar_t power_tuple;
363 int i = 0, pstate_nb=0;
364 xbt_dynar_t current_power_values;
365 double min_power, max_power;
367 if (m_properties == NULL)
370 char* all_power_values_str = (char*)xbt_dict_get_or_null(m_properties, "power_per_state");
372 if (all_power_values_str == NULL)
376 power_range_list = xbt_dynar_new(sizeof(xbt_dynar_t), NULL);
377 xbt_dynar_t all_power_values = xbt_str_split(all_power_values_str, ",");
379 pstate_nb = xbt_dynar_length(all_power_values);
380 for (i=0; i< pstate_nb; i++)
382 /* retrieve the power values associated with the current pstate */
383 current_power_values = xbt_str_split(xbt_dynar_get_as(all_power_values, i, char*), ":");
384 xbt_assert(xbt_dynar_length(current_power_values) > 1,
385 "Power properties incorrectly defined - could not retrieve min and max power values for host %s",
388 /* min_power corresponds to the idle power (cpu load = 0) */
389 /* max_power is the power consumed at 100% cpu load */
390 min_power = atof(xbt_dynar_get_as(current_power_values, 0, char*));
391 max_power = atof(xbt_dynar_get_as(current_power_values, 1, char*));
393 power_tuple = xbt_dynar_new(sizeof(double), NULL);
394 xbt_dynar_push_as(power_tuple, double, min_power);
395 xbt_dynar_push_as(power_tuple, double, max_power);
397 xbt_dynar_push_as(power_range_list, xbt_dynar_t, power_tuple);
398 xbt_dynar_free(¤t_power_values);
400 xbt_dynar_free(&all_power_values);
401 return power_range_list;
405 * Computes the power consumed by the host according to the current pstate and processor load
408 double CpuCas01Lmm::getCurrentWattsValue(double cpu_load)
410 xbt_dynar_t power_range_list = p_energy->power_range_watts_list;
412 if (power_range_list == NULL)
414 XBT_DEBUG("No power range properties specified for host %s", m_name);
417 xbt_assert(xbt_dynar_length(power_range_list) == xbt_dynar_length(p_powerPeakList),
418 "The number of power ranges in the properties does not match the number of pstates for host %s",
421 /* retrieve the power values associated with the current pstate */
422 xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, m_pstate, xbt_dynar_t);
424 /* min_power corresponds to the idle power (cpu load = 0) */
425 /* max_power is the power consumed at 100% cpu load */
426 double min_power = xbt_dynar_get_as(current_power_values, 0, double);
427 double max_power = xbt_dynar_get_as(current_power_values, 1, double);
428 double power_slope = max_power - min_power;
430 double current_power = min_power + cpu_load * power_slope;
432 XBT_DEBUG("[get_current_watts] min_power=%f, max_power=%f, slope=%f", min_power, max_power, power_slope);
433 XBT_DEBUG("[get_current_watts] Current power (watts) = %f, load = %f", current_power, cpu_load);
435 return current_power;
439 * Updates the total energy consumed as the sum of the current energy and
440 * the energy consumed by the current action
442 void CpuCas01Lmm::updateEnergy(double cpu_load)
444 double start_time = p_energy->last_updated;
445 double finish_time = surf_get_clock();
447 XBT_DEBUG("[cpu_update_energy] action time interval=(%f-%f), current power peak=%f, current pstate=%d",
448 start_time, finish_time, m_powerPeak, m_pstate);
449 double current_energy = p_energy->total_energy;
450 double action_energy = getCurrentWattsValue(cpu_load)*(finish_time-start_time);
452 p_energy->total_energy = current_energy + action_energy;
453 p_energy->last_updated = finish_time;
455 XBT_DEBUG("[cpu_update_energy] old_energy_value=%f, action_energy_value=%f", current_energy, action_energy);
458 double CpuCas01Lmm::getCurrentPowerPeak()
463 double CpuCas01Lmm::getPowerPeakAt(int pstate_index)
465 xbt_dynar_t plist = p_powerPeakList;
466 xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
468 return xbt_dynar_get_as(plist, pstate_index, double);
471 int CpuCas01Lmm::getNbPstates()
473 return xbt_dynar_length(p_powerPeakList);
476 void CpuCas01Lmm::setPowerPeakAt(int pstate_index)
478 xbt_dynar_t plist = p_powerPeakList;
479 xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
481 double new_power_peak = xbt_dynar_get_as(plist, pstate_index, double);
482 m_pstate = pstate_index;
483 m_powerPeak = new_power_peak;
486 double CpuCas01Lmm::getConsumedEnergy()
488 return p_energy->total_energy;
496 * Update the CPU total energy for a finished action
499 void CpuCas01ActionLmm::updateEnergy()
501 CpuCas01LmmPtr cpu = static_cast<CpuCas01LmmPtr>(lmm_constraint_id(lmm_get_cnst_from_var
502 (p_model->p_maxminSystem,
505 if(cpu->p_energy->last_updated < surf_get_clock()) {
506 double load = lmm_constraint_get_usage(cpu->p_constraint) / cpu->m_powerPeak;
507 cpu->updateEnergy(load);