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"
9 #include "plugins/energy.hpp"
10 #include "maxmin_private.hpp"
11 #include "simgrid/sg_config.h"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu_cas, surf_cpu,
14 "Logging specific to the SURF CPU IMPROVED module");
20 static void parse_cpu_init(sg_platf_host_cbarg_t host){
21 ((CpuCas01ModelPtr)surf_cpu_model_pm)->parseInit(host);
24 static void cpu_add_traces_cpu(){
25 surf_cpu_model_pm->addTraces();
28 static void cpu_define_callbacks()
30 sg_platf_host_add_cb(parse_cpu_init);
31 sg_platf_postparse_add_cb(cpu_add_traces_cpu);
37 void surf_cpu_model_init_Cas01()
39 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
41 xbt_assert(!surf_cpu_model_pm);
42 xbt_assert(!surf_cpu_model_vm);
44 if (!strcmp(optim, "TI")) {
45 surf_cpu_model_init_ti();
49 surf_cpu_model_pm = new CpuCas01Model();
50 surf_cpu_model_vm = new CpuCas01Model();
52 cpu_define_callbacks();
53 ModelPtr model_pm = static_cast<ModelPtr>(surf_cpu_model_pm);
54 ModelPtr model_vm = static_cast<ModelPtr>(surf_cpu_model_vm);
55 xbt_dynar_push(model_list, &model_pm);
56 xbt_dynar_push(model_list, &model_vm);
59 CpuCas01Model::CpuCas01Model() : CpuModel("cpu")
61 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
62 int select = xbt_cfg_get_boolean(_sg_cfg_set, "cpu/maxmin_selective_update");
64 if (!strcmp(optim, "Full")) {
65 p_updateMechanism = UM_FULL;
66 m_selectiveUpdate = select;
67 } else if (!strcmp(optim, "Lazy")) {
68 p_updateMechanism = UM_LAZY;
69 m_selectiveUpdate = 1;
70 xbt_assert((select == 1)
72 (xbt_cfg_is_default_value
73 (_sg_cfg_set, "cpu/maxmin_selective_update")),
74 "Disabling selective update while using the lazy update mechanism is dumb!");
76 xbt_die("Unsupported optimization (%s) for this model", optim);
79 p_cpuRunningActionSetThatDoesNotNeedBeingChecked = new ActionList();
81 if (getUpdateMechanism() == UM_LAZY) {
82 shareResources = &CpuCas01Model::shareResourcesLazy;
83 updateActionsState = &CpuCas01Model::updateActionsStateLazy;
85 } else if (getUpdateMechanism() == UM_FULL) {
86 shareResources = &CpuCas01Model::shareResourcesFull;
87 updateActionsState = &CpuCas01Model::updateActionsStateFull;
89 xbt_die("Invalid cpu update mechanism!");
91 if (!p_maxminSystem) {
92 p_maxminSystem = lmm_system_new(m_selectiveUpdate);
95 if (getUpdateMechanism() == UM_LAZY) {
96 p_actionHeap = xbt_heap_new(8, NULL);
97 xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
98 p_modifiedSet = new ActionLmmList();
99 p_maxminSystem->keep_track = p_modifiedSet;
103 CpuCas01Model::~CpuCas01Model()
105 lmm_system_free(p_maxminSystem);
106 p_maxminSystem = NULL;
109 xbt_heap_free(p_actionHeap);
110 delete p_modifiedSet;
112 surf_cpu_model_pm = NULL;
114 delete p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
117 void CpuCas01Model::parseInit(sg_platf_host_cbarg_t host)
119 createResource(host->id,
130 CpuPtr CpuCas01Model::createResource(const char *name, xbt_dynar_t power_peak,
131 int pstate, double power_scale,
132 tmgr_trace_t power_trace, int core,
133 e_surf_resource_state_t state_initial,
134 tmgr_trace_t state_trace,
135 xbt_dict_t cpu_properties)
138 xbt_assert(!surf_cpu_resource_priv(surf_cpu_resource_by_name(name)),
139 "Host '%s' declared several times in the platform file",
141 xbt_assert(xbt_dynar_getfirst_as(power_peak, double) > 0.0,
142 "Power has to be >0.0");
143 xbt_assert(core > 0, "Invalid number of cores %d", core);
145 cpu = new CpuCas01(this, name, power_peak, pstate, power_scale, power_trace, core, state_initial, state_trace, cpu_properties);
146 xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, static_cast<ResourcePtr>(cpu));
151 double CpuCas01Model::shareResourcesFull(double /*now*/)
153 return Model::shareResourcesMaxMin(getRunningActionSet(),
154 p_maxminSystem, lmm_solve);
157 void CpuCas01Model::addTraces()
159 xbt_dict_cursor_t cursor = NULL;
160 char *trace_name, *elm;
161 static int called = 0;
166 /* connect all traces relative to hosts */
167 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
168 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
169 CpuCas01Ptr host = static_cast<CpuCas01Ptr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
171 xbt_assert(host, "Host %s undefined", elm);
172 xbt_assert(trace, "Trace %s undefined", trace_name);
174 host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(host));
177 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
178 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
179 CpuCas01Ptr host = static_cast<CpuCas01Ptr>(surf_cpu_resource_priv(surf_cpu_resource_by_name(elm)));
181 xbt_assert(host, "Host %s undefined", elm);
182 xbt_assert(trace, "Trace %s undefined", trace_name);
185 tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(host));
192 CpuCas01::CpuCas01(CpuCas01ModelPtr model, const char *name, xbt_dynar_t powerPeak,
193 int pstate, double powerScale, tmgr_trace_t powerTrace, int core,
194 e_surf_resource_state_t stateInitial, tmgr_trace_t stateTrace,
195 xbt_dict_t properties)
196 : Cpu(model, name, properties,
197 lmm_constraint_new(model->getMaxminSystem(), this, core * powerScale * xbt_dynar_get_as(powerPeak, pstate, double)),
198 core, xbt_dynar_get_as(powerPeak, pstate, double), powerScale) {
200 p_powerPeakList = powerPeak;
203 XBT_DEBUG("CPU create: peak=%f, pstate=%d", m_powerPeak, m_pstate);
206 setState(stateInitial);
208 p_powerEvent = tmgr_history_add_trace(history, powerTrace, 0.0, 0, static_cast<ResourcePtr>(this));
211 p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, static_cast<ResourcePtr>(this));
214 CpuCas01::~CpuCas01(){
215 xbt_dynar_free(&p_powerPeakList);
218 bool CpuCas01::isUsed()
220 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
223 void CpuCas01::updateState(tmgr_trace_event_t event_type, double value, double date)
225 lmm_variable_t var = NULL;
226 lmm_element_t elem = NULL;
228 if (event_type == p_powerEvent) {
229 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
230 xbt_assert(m_core == 1, "FIXME: add power scaling code also for constraint_core[i]");
232 m_powerScale = value;
233 lmm_update_constraint_bound(surf_cpu_model_pm->getMaxminSystem(), getConstraint(),
234 m_core * m_powerScale *
237 TRACE_surf_host_set_power(date, getName(),
238 m_core * m_powerScale *
241 while ((var = lmm_get_var_from_cnst
242 (surf_cpu_model_pm->getMaxminSystem(), getConstraint(), &elem))) {
243 CpuCas01ActionPtr action = static_cast<CpuCas01ActionPtr>(static_cast<ActionPtr>(lmm_variable_id(var)));
245 lmm_update_variable_bound(surf_cpu_model_pm->getMaxminSystem(),
246 action->getVariable(),
247 m_powerScale * m_powerPeak);
249 if (tmgr_trace_event_free(event_type))
251 } else if (event_type == p_stateEvent) {
252 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
253 xbt_assert(m_core == 1, "FIXME: add state change code also for constraint_core[i]");
256 if(getState() == SURF_RESOURCE_OFF)
257 xbt_dynar_push_as(host_that_restart, char*, (char *)getName());
258 setState(SURF_RESOURCE_ON);
260 lmm_constraint_t cnst = getConstraint();
262 setState(SURF_RESOURCE_OFF);
264 while ((var = lmm_get_var_from_cnst(surf_cpu_model_pm->getMaxminSystem(), cnst, &elem))) {
265 ActionPtr action = static_cast<ActionPtr>(lmm_variable_id(var));
267 if (action->getState() == SURF_ACTION_RUNNING ||
268 action->getState() == SURF_ACTION_READY ||
269 action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
270 action->setFinishTime(date);
271 action->setState(SURF_ACTION_FAILED);
275 if (tmgr_trace_event_free(event_type))
278 XBT_CRITICAL("Unknown event ! \n");
285 CpuActionPtr CpuCas01::execute(double size)
288 XBT_IN("(%s,%g)", getName(), size);
289 CpuCas01ActionPtr action = new CpuCas01Action(surf_cpu_model_pm, size, getState() != SURF_RESOURCE_ON,
290 m_powerScale * m_powerPeak, getConstraint());
296 CpuActionPtr CpuCas01::sleep(double duration)
299 duration = MAX(duration, MAXMIN_PRECISION);
301 XBT_IN("(%s,%g)", getName(), duration);
302 CpuCas01ActionPtr action = new CpuCas01Action(surf_cpu_model_pm, 1.0, getState() != SURF_RESOURCE_ON,
303 m_powerScale * m_powerPeak, getConstraint());
306 // FIXME: sleep variables should not consume 1.0 in lmm_expand
307 action->m_maxDuration = duration;
308 action->m_suspended = 2;
309 if (duration == NO_MAX_DURATION) {
310 /* Move to the *end* of the corresponding action set. This convention
311 is used to speed up update_resource_state */
312 action->getStateSet()->erase(action->getStateSet()->iterator_to(*action));
313 action->p_stateSet = static_cast<CpuCas01ModelPtr>(getModel())->p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
314 action->getStateSet()->push_back(*action);
317 lmm_update_variable_weight(surf_cpu_model_pm->getMaxminSystem(),
318 action->getVariable(), 0.0);
319 if (surf_cpu_model_pm->getUpdateMechanism() == UM_LAZY) { // remove action from the heap
320 action->heapRemove(surf_cpu_model_pm->getActionHeap());
321 // this is necessary for a variable with weight 0 since such
322 // variables are ignored in lmm and we need to set its max_duration
323 // correctly at the next call to share_resources
324 surf_cpu_model_pm->getModifiedSet()->push_front(*action);
331 double CpuCas01::getCurrentPowerPeak()
336 double CpuCas01::getPowerPeakAt(int pstate_index)
338 xbt_dynar_t plist = p_powerPeakList;
339 xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
341 return xbt_dynar_get_as(plist, pstate_index, double);
344 int CpuCas01::getNbPstates()
346 return xbt_dynar_length(p_powerPeakList);
349 void CpuCas01::setPowerPeakAt(int pstate_index)
351 xbt_dynar_t plist = p_powerPeakList;
352 xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
354 double new_power_peak = xbt_dynar_get_as(plist, pstate_index, double);
355 m_pstate = pstate_index;
356 m_powerPeak = new_power_peak;
363 CpuCas01Action::CpuCas01Action(ModelPtr model, double cost, bool failed, double power, lmm_constraint_t constraint)
364 : CpuAction(model, cost, failed,
365 lmm_variable_new(model->getMaxminSystem(), static_cast<ActionPtr>(this),
368 m_suspended = 0; /* Should be useless because of the
369 calloc but it seems to help valgrind... */
371 if (model->getUpdateMechanism() == UM_LAZY) {
373 m_lastUpdate = surf_get_clock();
376 lmm_expand(model->getMaxminSystem(), constraint, getVariable(), 1.0);