1 /* Copyright (c) 2009-2011, 2013-2015. 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 "maxmin_private.hpp"
10 #include "simgrid/sg_config.h"
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu_cas, surf_cpu,
13 "Logging specific to the SURF CPU IMPROVED module");
18 void surf_cpu_model_init_Cas01()
20 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
22 xbt_assert(!surf_cpu_model_pm);
23 xbt_assert(!surf_cpu_model_vm);
25 if (!strcmp(optim, "TI")) {
26 surf_cpu_model_init_ti();
30 surf_cpu_model_pm = new simgrid::surf::CpuCas01Model();
31 surf_cpu_model_vm = new simgrid::surf::CpuCas01Model();
33 sg_platf_postparse_add_cb(simgrid::surf::cpu_add_traces);
35 simgrid::surf::Model *model_pm = surf_cpu_model_pm;
36 simgrid::surf::Model *model_vm = surf_cpu_model_vm;
37 xbt_dynar_push(all_existing_models, &model_pm);
38 xbt_dynar_push(all_existing_models, &model_vm);
44 CpuCas01Model::CpuCas01Model() : simgrid::surf::CpuModel()
46 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
47 int select = xbt_cfg_get_boolean(_sg_cfg_set, "cpu/maxmin_selective_update");
49 if (!strcmp(optim, "Full")) {
50 p_updateMechanism = UM_FULL;
51 m_selectiveUpdate = select;
52 } else if (!strcmp(optim, "Lazy")) {
53 p_updateMechanism = UM_LAZY;
54 m_selectiveUpdate = 1;
55 xbt_assert((select == 1)
57 (xbt_cfg_is_default_value
58 (_sg_cfg_set, "cpu/maxmin_selective_update")),
59 "Disabling selective update while using the lazy update mechanism is dumb!");
61 xbt_die("Unsupported optimization (%s) for this model", optim);
64 p_cpuRunningActionSetThatDoesNotNeedBeingChecked = new ActionList();
66 if (getUpdateMechanism() == UM_LAZY) {
67 shareResources = &CpuCas01Model::shareResourcesLazy;
68 updateActionsState = &CpuCas01Model::updateActionsStateLazy;
70 } else if (getUpdateMechanism() == UM_FULL) {
71 shareResources = &CpuCas01Model::shareResourcesFull;
72 updateActionsState = &CpuCas01Model::updateActionsStateFull;
74 xbt_die("Invalid cpu update mechanism!");
76 if (!p_maxminSystem) {
77 p_maxminSystem = lmm_system_new(m_selectiveUpdate);
80 if (getUpdateMechanism() == UM_LAZY) {
81 p_actionHeap = xbt_heap_new(8, NULL);
82 xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
83 p_modifiedSet = new ActionLmmList();
84 p_maxminSystem->keep_track = p_modifiedSet;
88 CpuCas01Model::~CpuCas01Model()
90 lmm_system_free(p_maxminSystem);
91 p_maxminSystem = NULL;
94 xbt_heap_free(p_actionHeap);
97 surf_cpu_model_pm = NULL;
99 delete p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
102 Cpu *CpuCas01Model::createCpu(simgrid::Host *host, xbt_dynar_t speedPeak,
103 int pstate, double speedScale,
104 tmgr_trace_t speedTrace, int core,
105 e_surf_resource_state_t state_initial,
106 tmgr_trace_t state_trace)
108 xbt_assert(xbt_dynar_getfirst_as(speedPeak, double) > 0.0,
109 "Speed has to be >0.0. Did you forget to specify the mandatory power attribute?");
110 xbt_assert(core > 0, "Invalid number of cores %d. Must be larger than 0", core);
111 Cpu *cpu = new CpuCas01(this, host, speedPeak, pstate, speedScale, speedTrace, core, state_initial, state_trace);
115 double CpuCas01Model::shareResourcesFull(double /*now*/)
117 return Model::shareResourcesMaxMin(getRunningActionSet(),
118 p_maxminSystem, lmm_solve);
121 void CpuCas01Model::addTraces()
123 xbt_dict_cursor_t cursor = NULL;
124 char *trace_name, *elm;
125 static int called = 0;
130 /* connect all traces relative to hosts */
131 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
132 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
133 CpuCas01 *host = static_cast<CpuCas01*>(sg_host_surfcpu(sg_host_by_name(elm)));
135 xbt_assert(host, "Host %s undefined", elm);
136 xbt_assert(trace, "Trace %s undefined", trace_name);
138 host->setStateEvent(tmgr_history_add_trace(history, trace, 0.0, 0, host));
141 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
142 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
143 CpuCas01 *host = static_cast<CpuCas01*>(sg_host_surfcpu(sg_host_by_name(elm)));
145 xbt_assert(host, "Host %s undefined", elm);
146 xbt_assert(trace, "Trace %s undefined", trace_name);
148 host->setPowerEvent(tmgr_history_add_trace(history, trace, 0.0, 0, host));
155 CpuCas01::CpuCas01(CpuCas01Model *model, simgrid::Host *host, xbt_dynar_t speedPeak,
156 int pstate, double speedScale, tmgr_trace_t speedTrace, int core,
157 e_surf_resource_state_t stateInitial, tmgr_trace_t stateTrace)
159 lmm_constraint_new(model->getMaxminSystem(), this, core * speedScale * xbt_dynar_get_as(speedPeak, pstate, double)),
161 core, xbt_dynar_get_as(speedPeak, pstate, double), speedScale,
165 XBT_DEBUG("CPU create: peak=%f, pstate=%d", m_speedPeak, m_pstate);
169 p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
172 p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, this);
175 CpuCas01::~CpuCas01()
177 if (getModel() == surf_cpu_model_pm)
178 xbt_dynar_free(&p_speedPeakList);
181 void CpuCas01::setStateEvent(tmgr_trace_event_t stateEvent)
183 p_stateEvent = stateEvent;
186 void CpuCas01::setPowerEvent(tmgr_trace_event_t powerEvent)
188 p_speedEvent = powerEvent;
191 xbt_dynar_t CpuCas01::getSpeedPeakList(){
192 return p_speedPeakList;
195 bool CpuCas01::isUsed()
197 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
200 void CpuCas01::updateState(tmgr_trace_event_t event_type, double value, double date)
202 lmm_variable_t var = NULL;
203 lmm_element_t elem = NULL;
205 if (event_type == p_speedEvent) {
206 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
207 xbt_assert(m_core == 1, "FIXME: add speed scaling code also for constraint_core[i]");
209 m_speedScale = value;
210 lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(),
211 m_core * m_speedScale *
213 TRACE_surf_host_set_speed(date, getName(),
214 m_core * m_speedScale *
216 while ((var = lmm_get_var_from_cnst
217 (getModel()->getMaxminSystem(), getConstraint(), &elem))) {
218 CpuCas01Action *action = static_cast<CpuCas01Action*>(lmm_variable_id(var));
220 lmm_update_variable_bound(getModel()->getMaxminSystem(),
221 action->getVariable(),
222 m_speedScale * m_speedPeak);
224 if (tmgr_trace_event_free(event_type))
226 } else if (event_type == p_stateEvent) {
227 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
228 xbt_assert(m_core == 1, "FIXME: add state change code also for constraint_core[i]");
231 if(getState() == SURF_RESOURCE_OFF)
232 xbt_dynar_push_as(host_that_restart, char*, (char *)getName());
233 setState(SURF_RESOURCE_ON);
235 lmm_constraint_t cnst = getConstraint();
237 setState(SURF_RESOURCE_OFF);
239 while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), cnst, &elem))) {
240 Action *action = static_cast<Action*>(lmm_variable_id(var));
242 if (action->getState() == SURF_ACTION_RUNNING ||
243 action->getState() == SURF_ACTION_READY ||
244 action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
245 action->setFinishTime(date);
246 action->setState(SURF_ACTION_FAILED);
250 if (tmgr_trace_event_free(event_type))
253 XBT_CRITICAL("Unknown event ! \n");
260 CpuAction *CpuCas01::execute(double size)
263 XBT_IN("(%s,%g)", getName(), size);
264 CpuCas01Action *action = new CpuCas01Action(getModel(), size, getState() != SURF_RESOURCE_ON,
265 m_speedScale * m_speedPeak, getConstraint());
271 CpuAction *CpuCas01::sleep(double duration)
274 duration = MAX(duration, sg_surf_precision);
276 XBT_IN("(%s,%g)", getName(), duration);
277 CpuCas01Action *action = new CpuCas01Action(getModel(), 1.0, getState() != SURF_RESOURCE_ON,
278 m_speedScale * m_speedPeak, getConstraint());
281 // FIXME: sleep variables should not consume 1.0 in lmm_expand
282 action->m_maxDuration = duration;
283 action->m_suspended = 2;
284 if (duration == NO_MAX_DURATION) {
285 /* Move to the *end* of the corresponding action set. This convention
286 is used to speed up update_resource_state */
287 action->getStateSet()->erase(action->getStateSet()->iterator_to(*action));
288 action->p_stateSet = static_cast<CpuCas01Model*>(getModel())->p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
289 action->getStateSet()->push_back(*action);
292 lmm_update_variable_weight(getModel()->getMaxminSystem(),
293 action->getVariable(), 0.0);
294 if (getModel()->getUpdateMechanism() == UM_LAZY) { // remove action from the heap
295 action->heapRemove(getModel()->getActionHeap());
296 // this is necessary for a variable with weight 0 since such
297 // variables are ignored in lmm and we need to set its max_duration
298 // correctly at the next call to share_resources
299 getModel()->getModifiedSet()->push_front(*action);
306 double CpuCas01::getCurrentPowerPeak()
315 CpuCas01Action::CpuCas01Action(Model *model, double cost, bool failed, double speed, lmm_constraint_t constraint)
316 : CpuAction(model, cost, failed,
317 lmm_variable_new(model->getMaxminSystem(), this,
320 if (model->getUpdateMechanism() == UM_LAZY) {
322 m_lastUpdate = surf_get_clock();
325 lmm_expand(model->getMaxminSystem(), constraint, getVariable(), 1.0);