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"
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 xbt_assert(!surf_cpu_model_pm);
21 xbt_assert(!surf_cpu_model_vm);
23 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
24 if (!strcmp(optim, "TI")) {
25 surf_cpu_model_init_ti();
29 surf_cpu_model_pm = new simgrid::surf::CpuCas01Model();
30 xbt_dynar_push(all_existing_models, &surf_cpu_model_pm);
32 surf_cpu_model_vm = new simgrid::surf::CpuCas01Model();
33 xbt_dynar_push(all_existing_models, &surf_cpu_model_vm);
35 sg_platf_postparse_add_cb(simgrid::surf::cpu_add_traces);
41 CpuCas01Model::CpuCas01Model() : simgrid::surf::CpuModel()
43 char *optim = xbt_cfg_get_string(_sg_cfg_set, "cpu/optim");
44 int select = xbt_cfg_get_boolean(_sg_cfg_set, "cpu/maxmin_selective_update");
46 if (!strcmp(optim, "Full")) {
47 p_updateMechanism = UM_FULL;
48 m_selectiveUpdate = select;
49 } else if (!strcmp(optim, "Lazy")) {
50 p_updateMechanism = UM_LAZY;
51 m_selectiveUpdate = 1;
52 xbt_assert((select == 1)
54 (xbt_cfg_is_default_value
55 (_sg_cfg_set, "cpu/maxmin_selective_update")),
56 "Disabling selective update while using the lazy update mechanism is dumb!");
58 xbt_die("Unsupported optimization (%s) for this model", optim);
61 p_cpuRunningActionSetThatDoesNotNeedBeingChecked = new ActionList();
63 p_maxminSystem = lmm_system_new(m_selectiveUpdate);
65 if (getUpdateMechanism() == UM_LAZY) {
66 p_actionHeap = xbt_heap_new(8, NULL);
67 xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
68 p_modifiedSet = new ActionLmmList();
69 p_maxminSystem->keep_track = p_modifiedSet;
73 CpuCas01Model::~CpuCas01Model()
75 lmm_system_free(p_maxminSystem);
76 p_maxminSystem = NULL;
79 xbt_heap_free(p_actionHeap);
82 surf_cpu_model_pm = NULL;
84 delete p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
87 Cpu *CpuCas01Model::createCpu(simgrid::Host *host, xbt_dynar_t speedPeak,
88 int pstate, double speedScale,
89 tmgr_trace_t speedTrace, int core,
90 e_surf_resource_state_t state_initial,
91 tmgr_trace_t state_trace)
93 xbt_assert(xbt_dynar_getfirst_as(speedPeak, double) > 0.0,
94 "Speed has to be >0.0. Did you forget to specify the mandatory power attribute?");
95 xbt_assert(core > 0, "Invalid number of cores %d. Must be larger than 0", core);
96 Cpu *cpu = new CpuCas01(this, host, speedPeak, pstate, speedScale, speedTrace, core, state_initial, state_trace);
100 double CpuCas01Model::shareResourcesFull(double /*now*/)
102 return Model::shareResourcesMaxMin(getRunningActionSet(),
103 p_maxminSystem, lmm_solve);
106 void CpuCas01Model::addTraces()
108 xbt_dict_cursor_t cursor = NULL;
109 char *trace_name, *elm;
110 static int called = 0;
115 /* connect all traces relative to hosts */
116 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
117 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
118 CpuCas01 *host = static_cast<CpuCas01*>(sg_host_by_name(elm)->p_cpu);
120 xbt_assert(host, "Host %s undefined", elm);
121 xbt_assert(trace, "Trace %s undefined", trace_name);
123 host->setStateEvent(tmgr_history_add_trace(history, trace, 0.0, 0, host));
126 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
127 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
128 CpuCas01 *host = static_cast<CpuCas01*>(sg_host_by_name(elm)->p_cpu);
130 xbt_assert(host, "Host %s undefined", elm);
131 xbt_assert(trace, "Trace %s undefined", trace_name);
133 host->setPowerEvent(tmgr_history_add_trace(history, trace, 0.0, 0, host));
140 CpuCas01::CpuCas01(CpuCas01Model *model, simgrid::Host *host, xbt_dynar_t speedPeak,
141 int pstate, double speedScale, tmgr_trace_t speedTrace, int core,
142 e_surf_resource_state_t stateInitial, tmgr_trace_t stateTrace)
144 lmm_constraint_new(model->getMaxminSystem(), this, core * speedScale * xbt_dynar_get_as(speedPeak, pstate, double)),
146 core, xbt_dynar_get_as(speedPeak, pstate, double), speedScale,
150 XBT_DEBUG("CPU create: peak=%f, pstate=%d", m_speedPeak, m_pstate);
154 p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
157 p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, this);
160 CpuCas01::~CpuCas01()
162 if (getModel() == surf_cpu_model_pm)
163 xbt_dynar_free(&p_speedPeakList);
166 void CpuCas01::setStateEvent(tmgr_trace_event_t stateEvent)
168 p_stateEvent = stateEvent;
171 void CpuCas01::setPowerEvent(tmgr_trace_event_t powerEvent)
173 p_speedEvent = powerEvent;
176 xbt_dynar_t CpuCas01::getSpeedPeakList(){
177 return p_speedPeakList;
180 bool CpuCas01::isUsed()
182 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
185 /** @brief take into account changes of speed (either load or max) */
186 void CpuCas01::onSpeedChange() {
187 lmm_variable_t var = NULL;
188 lmm_element_t elem = NULL;
190 lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(),
191 m_core * m_speedScale * m_speedPeak);
192 while ((var = lmm_get_var_from_cnst
193 (getModel()->getMaxminSystem(), getConstraint(), &elem))) {
194 CpuCas01Action *action = static_cast<CpuCas01Action*>(lmm_variable_id(var));
196 lmm_update_variable_bound(getModel()->getMaxminSystem(),
197 action->getVariable(),
198 m_speedScale * m_speedPeak);
201 Cpu::onSpeedChange();
204 void CpuCas01::updateState(tmgr_trace_event_t event_type, double value, double date)
206 lmm_variable_t var = NULL;
207 lmm_element_t elem = NULL;
209 if (event_type == p_speedEvent) {
210 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
211 xbt_assert(m_core == 1, "FIXME: add speed scaling code also for constraint_core[i]");
213 m_speedScale = value;
216 if (tmgr_trace_event_free(event_type))
218 } else if (event_type == p_stateEvent) {
219 /* TODO (Hypervisor): do the same thing for constraint_core[i] */
220 xbt_assert(m_core == 1, "FIXME: add state change code also for constraint_core[i]");
223 if(getState() == SURF_RESOURCE_OFF)
224 xbt_dynar_push_as(host_that_restart, char*, (char *)getName());
225 setState(SURF_RESOURCE_ON);
227 lmm_constraint_t cnst = getConstraint();
229 setState(SURF_RESOURCE_OFF);
231 while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), cnst, &elem))) {
232 Action *action = static_cast<Action*>(lmm_variable_id(var));
234 if (action->getState() == SURF_ACTION_RUNNING ||
235 action->getState() == SURF_ACTION_READY ||
236 action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
237 action->setFinishTime(date);
238 action->setState(SURF_ACTION_FAILED);
242 if (tmgr_trace_event_free(event_type))
245 XBT_CRITICAL("Unknown event ! \n");
252 CpuAction *CpuCas01::execute(double size)
255 XBT_IN("(%s,%g)", getName(), size);
256 CpuCas01Action *action = new CpuCas01Action(getModel(), size, getState() != SURF_RESOURCE_ON,
257 m_speedScale * m_speedPeak, getConstraint());
263 CpuAction *CpuCas01::sleep(double duration)
266 duration = MAX(duration, sg_surf_precision);
268 XBT_IN("(%s,%g)", getName(), duration);
269 CpuCas01Action *action = new CpuCas01Action(getModel(), 1.0, getState() != SURF_RESOURCE_ON,
270 m_speedScale * m_speedPeak, getConstraint());
273 // FIXME: sleep variables should not consume 1.0 in lmm_expand
274 action->m_maxDuration = duration;
275 action->m_suspended = 2;
276 if (duration == NO_MAX_DURATION) {
277 /* Move to the *end* of the corresponding action set. This convention
278 is used to speed up update_resource_state */
279 action->getStateSet()->erase(action->getStateSet()->iterator_to(*action));
280 action->p_stateSet = static_cast<CpuCas01Model*>(getModel())->p_cpuRunningActionSetThatDoesNotNeedBeingChecked;
281 action->getStateSet()->push_back(*action);
284 lmm_update_variable_weight(getModel()->getMaxminSystem(),
285 action->getVariable(), 0.0);
286 if (getModel()->getUpdateMechanism() == UM_LAZY) { // remove action from the heap
287 action->heapRemove(getModel()->getActionHeap());
288 // this is necessary for a variable with weight 0 since such
289 // variables are ignored in lmm and we need to set its max_duration
290 // correctly at the next call to share_resources
291 getModel()->getModifiedSet()->push_front(*action);
302 CpuCas01Action::CpuCas01Action(Model *model, double cost, bool failed, double speed, lmm_constraint_t constraint)
303 : CpuAction(model, cost, failed,
304 lmm_variable_new(model->getMaxminSystem(), this,
307 if (model->getUpdateMechanism() == UM_LAZY) {
309 m_lastUpdate = surf_get_clock();
312 lmm_expand(model->getMaxminSystem(), constraint, getVariable(), 1.0);