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 Resource(model, name, properties), CpuLmm(model, name, properties) {
208 m_powerPeak = xbt_dynar_get_as(powerPeak, pstate, double);
209 p_powerPeakList = powerPeak;
212 p_energy = xbt_new(s_energy_cpu_cas01_t, 1);
213 p_energy->total_energy = 0;
214 p_energy->power_range_watts_list = getWattsRangeList();
215 p_energy->last_updated = surf_get_clock();
217 XBT_DEBUG("CPU create: peak=%f, pstate=%d", m_powerPeak, m_pstate);
219 m_powerScale = powerScale;
221 p_stateCurrent = stateInitial;
223 p_powerEvent = tmgr_history_add_trace(history, powerTrace, 0.0, 0, static_cast<ResourcePtr>(this));
226 p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, static_cast<ResourcePtr>(this));
228 p_constraint = lmm_constraint_new(p_model->p_maxminSystem, this, m_core * m_powerScale * m_powerPeak);
231 CpuCas01Lmm::~CpuCas01Lmm(){
233 xbt_dynar_t power_tuple = NULL;
234 xbt_dynar_foreach(p_energy->power_range_watts_list, iter, power_tuple)
235 xbt_dynar_free(&power_tuple);
236 xbt_dynar_free(&p_energy->power_range_watts_list);
237 xbt_dynar_free(&p_powerPeakList);
242 bool CpuCas01Lmm::isUsed()
244 return lmm_constraint_used(p_model->p_maxminSystem, p_constraint);
247 void CpuCas01Lmm::updateState(tmgr_trace_event_t event_type, double value, double date)
249 lmm_variable_t var = NULL;
250 lmm_element_t elem = NULL;
252 if (event_type == p_powerEvent) {
253 m_powerScale = value;
254 lmm_update_constraint_bound(surf_cpu_model_pm->p_maxminSystem, p_constraint,
255 m_core * m_powerScale *
258 TRACE_surf_host_set_power(date, m_name,
259 m_core * m_powerScale *
262 while ((var = lmm_get_var_from_cnst
263 (surf_cpu_model_pm->p_maxminSystem, p_constraint, &elem))) {
264 CpuCas01ActionLmmPtr action = static_cast<CpuCas01ActionLmmPtr>(static_cast<ActionLmmPtr>(lmm_variable_id(var)));
266 lmm_update_variable_bound(surf_cpu_model_pm->p_maxminSystem,
268 m_powerScale * m_powerPeak);
270 if (tmgr_trace_event_free(event_type))
272 } else if (event_type == p_stateEvent) {
274 if(p_stateCurrent == SURF_RESOURCE_OFF)
275 xbt_dynar_push_as(host_that_restart, char*, (char *)m_name);
276 p_stateCurrent = SURF_RESOURCE_ON;
278 lmm_constraint_t cnst = p_constraint;
280 p_stateCurrent = SURF_RESOURCE_OFF;
282 while ((var = lmm_get_var_from_cnst(surf_cpu_model_pm->p_maxminSystem, cnst, &elem))) {
283 ActionLmmPtr action = static_cast<ActionLmmPtr>(lmm_variable_id(var));
285 if (action->getState() == SURF_ACTION_RUNNING ||
286 action->getState() == SURF_ACTION_READY ||
287 action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
288 action->m_finish = date;
289 action->setState(SURF_ACTION_FAILED);
293 if (tmgr_trace_event_free(event_type))
296 XBT_CRITICAL("Unknown event ! \n");
303 ActionPtr CpuCas01Lmm::execute(double size)
306 XBT_IN("(%s,%g)", m_name, size);
307 CpuCas01ActionLmmPtr action = new CpuCas01ActionLmm(surf_cpu_model_pm, size, p_stateCurrent != SURF_RESOURCE_ON);
309 action->m_suspended = 0; /* Should be useless because of the
310 calloc but it seems to help valgrind... */
313 lmm_variable_new(surf_cpu_model_pm->p_maxminSystem, static_cast<ActionLmmPtr>(action),
315 m_powerScale * m_powerPeak, 1);
316 if (surf_cpu_model_pm->p_updateMechanism == UM_LAZY) {
317 action->m_indexHeap = -1;
318 action->m_lastUpdate = surf_get_clock();
319 action->m_lastValue = 0.0;
321 lmm_expand(surf_cpu_model_pm->p_maxminSystem, p_constraint,
322 action->p_variable, 1.0);
327 ActionPtr CpuCas01Lmm::sleep(double duration)
330 duration = MAX(duration, MAXMIN_PRECISION);
332 XBT_IN("(%s,%g)", m_name, duration);
333 CpuCas01ActionLmmPtr action = dynamic_cast<CpuCas01ActionLmmPtr>(execute(1.0));
335 // FIXME: sleep variables should not consume 1.0 in lmm_expand
336 action->m_maxDuration = duration;
337 action->m_suspended = 2;
338 if (duration == NO_MAX_DURATION) {
339 /* Move to the *end* of the corresponding action set. This convention
340 is used to speed up update_resource_state */
341 xbt_swag_remove(static_cast<ActionPtr>(action), action->p_stateSet);
342 action->p_stateSet = cpu_running_action_set_that_does_not_need_being_checked;
343 xbt_swag_insert(static_cast<ActionPtr>(action), action->p_stateSet);
346 lmm_update_variable_weight(surf_cpu_model_pm->p_maxminSystem,
347 action->p_variable, 0.0);
348 if (surf_cpu_model_pm->p_updateMechanism == UM_LAZY) { // remove action from the heap
349 action->heapRemove(surf_cpu_model_pm->p_actionHeap);
350 // this is necessary for a variable with weight 0 since such
351 // variables are ignored in lmm and we need to set its max_duration
352 // correctly at the next call to share_resources
353 xbt_swag_insert_at_head(static_cast<ActionLmmPtr>(action), surf_cpu_model_pm->p_modifiedSet);
360 xbt_dynar_t CpuCas01Lmm::getWattsRangeList()
362 xbt_dynar_t power_range_list;
363 xbt_dynar_t power_tuple;
364 int i = 0, pstate_nb=0;
365 xbt_dynar_t current_power_values;
366 double min_power, max_power;
368 if (m_properties == NULL)
371 char* all_power_values_str = (char*)xbt_dict_get_or_null(m_properties, "power_per_state");
373 if (all_power_values_str == NULL)
377 power_range_list = xbt_dynar_new(sizeof(xbt_dynar_t), NULL);
378 xbt_dynar_t all_power_values = xbt_str_split(all_power_values_str, ",");
380 pstate_nb = xbt_dynar_length(all_power_values);
381 for (i=0; i< pstate_nb; i++)
383 /* retrieve the power values associated with the current pstate */
384 current_power_values = xbt_str_split(xbt_dynar_get_as(all_power_values, i, char*), ":");
385 xbt_assert(xbt_dynar_length(current_power_values) > 1,
386 "Power properties incorrectly defined - could not retrieve min and max power values for host %s",
389 /* min_power corresponds to the idle power (cpu load = 0) */
390 /* max_power is the power consumed at 100% cpu load */
391 min_power = atof(xbt_dynar_get_as(current_power_values, 0, char*));
392 max_power = atof(xbt_dynar_get_as(current_power_values, 1, char*));
394 power_tuple = xbt_dynar_new(sizeof(double), NULL);
395 xbt_dynar_push_as(power_tuple, double, min_power);
396 xbt_dynar_push_as(power_tuple, double, max_power);
398 xbt_dynar_push_as(power_range_list, xbt_dynar_t, power_tuple);
399 xbt_dynar_free(¤t_power_values);
401 xbt_dynar_free(&all_power_values);
402 return power_range_list;
406 * Computes the power consumed by the host according to the current pstate and processor load
409 double CpuCas01Lmm::getCurrentWattsValue(double cpu_load)
411 xbt_dynar_t power_range_list = p_energy->power_range_watts_list;
413 if (power_range_list == NULL)
415 XBT_DEBUG("No power range properties specified for host %s", m_name);
418 xbt_assert(xbt_dynar_length(power_range_list) == xbt_dynar_length(p_powerPeakList),
419 "The number of power ranges in the properties does not match the number of pstates for host %s",
422 /* retrieve the power values associated with the current pstate */
423 xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, m_pstate, xbt_dynar_t);
425 /* min_power corresponds to the idle power (cpu load = 0) */
426 /* max_power is the power consumed at 100% cpu load */
427 double min_power = xbt_dynar_get_as(current_power_values, 0, double);
428 double max_power = xbt_dynar_get_as(current_power_values, 1, double);
429 double power_slope = max_power - min_power;
431 double current_power = min_power + cpu_load * power_slope;
433 XBT_DEBUG("[get_current_watts] min_power=%f, max_power=%f, slope=%f", min_power, max_power, power_slope);
434 XBT_DEBUG("[get_current_watts] Current power (watts) = %f, load = %f", current_power, cpu_load);
436 return current_power;
440 * Updates the total energy consumed as the sum of the current energy and
441 * the energy consumed by the current action
443 void CpuCas01Lmm::updateEnergy(double cpu_load)
445 double start_time = p_energy->last_updated;
446 double finish_time = surf_get_clock();
448 XBT_DEBUG("[cpu_update_energy] action time interval=(%f-%f), current power peak=%f, current pstate=%d",
449 start_time, finish_time, m_powerPeak, m_pstate);
450 double current_energy = p_energy->total_energy;
451 double action_energy = getCurrentWattsValue(cpu_load)*(finish_time-start_time);
453 p_energy->total_energy = current_energy + action_energy;
454 p_energy->last_updated = finish_time;
456 XBT_DEBUG("[cpu_update_energy] old_energy_value=%f, action_energy_value=%f", current_energy, action_energy);
459 double CpuCas01Lmm::getCurrentPowerPeak()
464 double CpuCas01Lmm::getPowerPeakAt(int pstate_index)
466 xbt_dynar_t plist = p_powerPeakList;
467 xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
469 return xbt_dynar_get_as(plist, pstate_index, double);
472 int CpuCas01Lmm::getNbPstates()
474 return xbt_dynar_length(p_powerPeakList);
477 void CpuCas01Lmm::setPowerPeakAt(int pstate_index)
479 xbt_dynar_t plist = p_powerPeakList;
480 xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
482 double new_power_peak = xbt_dynar_get_as(plist, pstate_index, double);
483 m_pstate = pstate_index;
484 m_powerPeak = new_power_peak;
487 double CpuCas01Lmm::getConsumedEnergy()
489 return p_energy->total_energy;
497 * Update the CPU total energy for a finished action
500 void CpuCas01ActionLmm::updateEnergy()
502 CpuCas01LmmPtr cpu = static_cast<CpuCas01LmmPtr>(lmm_constraint_id(lmm_get_cnst_from_var
503 (p_model->p_maxminSystem,
506 if(cpu->p_energy->last_updated < surf_get_clock()) {
507 double load = lmm_constraint_get_usage(cpu->p_constraint) / cpu->m_powerPeak;
508 cpu->updateEnergy(load);