1 /* Copyright (c) 2009-2011, 2013-2016. 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"
11 #include "src/surf/platform.hpp"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu_cas, surf_cpu,
14 "Logging specific to the SURF CPU IMPROVED module");
19 void surf_cpu_model_init_Cas01()
21 xbt_assert(!surf_cpu_model_pm);
22 xbt_assert(!surf_cpu_model_vm);
24 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
25 if (!strcmp(optim, "TI")) {
26 surf_cpu_model_init_ti();
30 surf_cpu_model_pm = new simgrid::surf::CpuCas01Model();
31 xbt_dynar_push(all_existing_models, &surf_cpu_model_pm);
33 surf_cpu_model_vm = new simgrid::surf::CpuCas01Model();
34 xbt_dynar_push(all_existing_models, &surf_cpu_model_vm);
36 simgrid::surf::on_postparse.connect(simgrid::surf::cpu_add_traces);
42 CpuCas01Model::CpuCas01Model() : simgrid::surf::CpuModel()
44 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
45 int select = xbt_cfg_get_boolean(_sg_cfg_set, "cpu/maxmin_selective_update");
47 if (!strcmp(optim, "Full")) {
48 p_updateMechanism = UM_FULL;
49 m_selectiveUpdate = select;
50 } else if (!strcmp(optim, "Lazy")) {
51 p_updateMechanism = UM_LAZY;
52 m_selectiveUpdate = 1;
53 xbt_assert((select == 1)
55 (xbt_cfg_is_default_value
56 (_sg_cfg_set, "cpu/maxmin_selective_update")),
57 "Disabling selective update while using the lazy update mechanism is dumb!");
59 xbt_die("Unsupported optimization (%s) for this model", optim);
62 p_cpuRunningActionSetThatDoesNotNeedBeingChecked = new ActionList();
64 p_maxminSystem = lmm_system_new(m_selectiveUpdate);
66 if (getUpdateMechanism() == UM_LAZY) {
67 p_actionHeap = xbt_heap_new(8, NULL);
68 xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
69 p_modifiedSet = new ActionLmmList();
70 p_maxminSystem->keep_track = p_modifiedSet;
74 CpuCas01Model::~CpuCas01Model()
76 lmm_system_free(p_maxminSystem);
77 p_maxminSystem = NULL;
80 xbt_heap_free(p_actionHeap);
83 surf_cpu_model_pm = NULL;
85 delete p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
88 Cpu *CpuCas01Model::createCpu(simgrid::s4u::Host *host, xbt_dynar_t speedPeak,
89 int pstate, double speedScale,
90 tmgr_trace_t speedTrace, int core,
92 tmgr_trace_t state_trace)
94 xbt_assert(xbt_dynar_getfirst_as(speedPeak, double) > 0.0,
95 "Speed has to be >0.0. Did you forget to specify the mandatory power attribute?");
96 xbt_assert(core > 0, "Invalid number of cores %d. Must be larger than 0", core);
97 Cpu *cpu = new CpuCas01(this, host, speedPeak, pstate, speedScale, speedTrace, core, initiallyOn, state_trace);
101 double CpuCas01Model::shareResourcesFull(double /*now*/)
103 return Model::shareResourcesMaxMin(getRunningActionSet(),
104 p_maxminSystem, lmm_solve);
107 void CpuCas01Model::addTraces()
109 xbt_dict_cursor_t cursor = NULL;
110 char *trace_name, *elm;
111 static int called = 0;
116 /* connect all traces relative to hosts */
117 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
118 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
119 CpuCas01 *host = static_cast<CpuCas01*>(sg_host_by_name(elm)->pimpl_cpu);
121 xbt_assert(host, "Host %s undefined", elm);
122 xbt_assert(trace, "Trace %s undefined", trace_name);
124 host->setStateEvent(tmgr_history_add_trace(history, trace, 0.0, 0, host));
127 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
128 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
129 CpuCas01 *host = static_cast<CpuCas01*>(sg_host_by_name(elm)->pimpl_cpu);
131 xbt_assert(host, "Host %s undefined", elm);
132 xbt_assert(trace, "Trace %s undefined", trace_name);
134 host->setPowerEvent(tmgr_history_add_trace(history, trace, 0.0, 0, host));
141 CpuCas01::CpuCas01(CpuCas01Model *model, simgrid::s4u::Host *host, xbt_dynar_t speedPeak,
142 int pstate, double speedScale, tmgr_trace_t speedTrace, int core,
143 int initiallyOn, tmgr_trace_t stateTrace)
145 lmm_constraint_new(model->getMaxminSystem(), this, core * speedScale * xbt_dynar_get_as(speedPeak, pstate, double)),
147 core, xbt_dynar_get_as(speedPeak, pstate, double), speedScale,
151 XBT_DEBUG("CPU create: peak=%f, pstate=%d", m_speedPeak, m_pstate);
155 p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
158 p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, this);
161 CpuCas01::~CpuCas01()
163 if (getModel() == surf_cpu_model_pm)
164 xbt_dynar_free(&p_speedPeakList);
167 void CpuCas01::setStateEvent(tmgr_trace_event_t stateEvent)
169 p_stateEvent = stateEvent;
172 void CpuCas01::setPowerEvent(tmgr_trace_event_t powerEvent)
174 p_speedEvent = powerEvent;
177 xbt_dynar_t CpuCas01::getSpeedPeakList(){
178 return p_speedPeakList;
181 bool CpuCas01::isUsed()
183 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
186 /** @brief take into account changes of speed (either load or max) */
187 void CpuCas01::onSpeedChange() {
188 lmm_variable_t var = NULL;
189 lmm_element_t elem = NULL;
191 lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(),
192 m_core * m_speedScale * m_speedPeak);
193 while ((var = lmm_get_var_from_cnst
194 (getModel()->getMaxminSystem(), getConstraint(), &elem))) {
195 CpuCas01Action *action = static_cast<CpuCas01Action*>(lmm_variable_id(var));
197 lmm_update_variable_bound(getModel()->getMaxminSystem(),
198 action->getVariable(),
199 m_speedScale * m_speedPeak);
202 Cpu::onSpeedChange();
205 void CpuCas01::updateState(tmgr_trace_event_t event_type, double value, double date)
207 lmm_variable_t var = NULL;
208 lmm_element_t elem = NULL;
210 if (event_type == p_speedEvent) {
211 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
212 xbt_assert(m_core == 1, "FIXME: add speed scaling code also for constraint_core[i]");
214 m_speedScale = value;
217 if (tmgr_trace_event_free(event_type))
219 } else if (event_type == p_stateEvent) {
220 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
221 xbt_assert(m_core == 1, "FIXME: add state change code also for constraint_core[i]");
225 xbt_dynar_push_as(host_that_restart, char*, (char *)getName());
228 lmm_constraint_t cnst = getConstraint();
232 while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), cnst, &elem))) {
233 Action *action = static_cast<Action*>(lmm_variable_id(var));
235 if (action->getState() == SURF_ACTION_RUNNING ||
236 action->getState() == SURF_ACTION_READY ||
237 action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
238 action->setFinishTime(date);
239 action->setState(SURF_ACTION_FAILED);
243 if (tmgr_trace_event_free(event_type))
246 XBT_CRITICAL("Unknown event ! \n");
253 CpuAction *CpuCas01::execute(double size)
256 XBT_IN("(%s,%g)", getName(), size);
257 CpuCas01Action *action = new CpuCas01Action(getModel(), size, isOff(),
258 m_speedScale * m_speedPeak, getConstraint());
264 CpuAction *CpuCas01::sleep(double duration)
267 duration = MAX(duration, sg_surf_precision);
269 XBT_IN("(%s,%g)", getName(), duration);
270 CpuCas01Action *action = new CpuCas01Action(getModel(), 1.0, isOff(),
271 m_speedScale * m_speedPeak, getConstraint());
274 // FIXME: sleep variables should not consume 1.0 in lmm_expand
275 action->m_maxDuration = duration;
276 action->m_suspended = 2;
277 if (duration == NO_MAX_DURATION) {
278 /* Move to the *end* of the corresponding action set. This convention
279 is used to speed up update_resource_state */
280 action->getStateSet()->erase(action->getStateSet()->iterator_to(*action));
281 action->p_stateSet = static_cast<CpuCas01Model*>(getModel())->p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
282 action->getStateSet()->push_back(*action);
285 lmm_update_variable_weight(getModel()->getMaxminSystem(),
286 action->getVariable(), 0.0);
287 if (getModel()->getUpdateMechanism() == UM_LAZY) { // remove action from the heap
288 action->heapRemove(getModel()->getActionHeap());
289 // this is necessary for a variable with weight 0 since such
290 // variables are ignored in lmm and we need to set its max_duration
291 // correctly at the next call to share_resources
292 getModel()->getModifiedSet()->push_front(*action);
303 CpuCas01Action::CpuCas01Action(Model *model, double cost, bool failed, double speed, lmm_constraint_t constraint)
304 : CpuAction(model, cost, failed,
305 lmm_variable_new(model->getMaxminSystem(), this,
308 if (model->getUpdateMechanism() == UM_LAZY) {
310 m_lastUpdate = surf_get_clock();
313 lmm_expand(model->getMaxminSystem(), constraint, getVariable(), 1.0);