+/* Copyright (c) 2013-2015. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <xbt/dynar.h>
#include "cpu_interface.hpp"
+#include "plugins/energy.hpp"
+#include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
-extern "C" {
XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf,
- "Logging specific to the SURF cpu module");
-}
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf, "Logging specific to the SURF cpu module");
+
+void_f_void_t surf_cpu_model_init_preparse = NULL;
+
+simgrid::surf::CpuModel *surf_cpu_model_pm;
+simgrid::surf::CpuModel *surf_cpu_model_vm;
-CpuModelPtr surf_cpu_model_pm;
-CpuModelPtr surf_cpu_model_vm;
+namespace simgrid {
+namespace surf {
+
+/*************
+ * Callbacks *
+ *************/
+
+simgrid::xbt::signal<void(CpuAction*, Action::State, Action::State)> cpuActionStateChangedCallbacks;
/*********
* Model *
void CpuModel::updateActionsStateLazy(double now, double /*delta*/)
{
- void *_action;
- CpuActionLmmPtr action;
- while ((xbt_heap_size(p_actionHeap) > 0)
- && (double_equals(xbt_heap_maxkey(p_actionHeap), now))) {
- action = dynamic_cast<CpuActionLmmPtr>(static_cast<ActionLmmPtr>(xbt_heap_pop(p_actionHeap)));
+ CpuAction *action;
+ while ((xbt_heap_size(getActionHeap()) > 0)
+ && (double_equals(xbt_heap_maxkey(getActionHeap()), now, sg_surf_precision))) {
+ action = static_cast<CpuAction*>(xbt_heap_pop(getActionHeap()));
XBT_CDEBUG(surf_kernel, "Something happened to action %p", action);
-#ifdef HAVE_TRACING
if (TRACE_is_enabled()) {
- CpuPtr cpu = (CpuPtr) lmm_constraint_id(lmm_get_cnst_from_var(p_maxminSystem, action->p_variable, 0));
- TRACE_surf_host_set_utilization(cpu->m_name, action->p_category,
- lmm_variable_getvalue(action->p_variable),
- action->m_lastUpdate,
- now - action->m_lastUpdate);
+ Cpu *cpu = static_cast<Cpu*>(lmm_constraint_id(lmm_get_cnst_from_var(getMaxminSystem(), action->getVariable(), 0)));
+ TRACE_surf_host_set_utilization(cpu->getName(), action->getCategory(),
+ lmm_variable_getvalue(action->getVariable()),
+ action->getLastUpdate(),
+ now - action->getLastUpdate());
}
-#endif
- action->m_finish = surf_get_clock();
+ action->finish();
XBT_CDEBUG(surf_kernel, "Action %p finished", action);
- action->updateEnergy();
-
/* set the remains to 0 due to precision problems when updating the remaining amount */
- action->m_remains = 0;
- action->setState(SURF_ACTION_DONE);
- action->heapRemove(p_actionHeap); //FIXME: strange call since action was already popped
+ action->setRemains(0);
+ action->setState(Action::State::done);
+ action->heapRemove(getActionHeap()); //FIXME: strange call since action was already popped
}
-#ifdef HAVE_TRACING
if (TRACE_is_enabled()) {
//defining the last timestamp that we can safely dump to trace file
//without losing the event ascending order (considering all CPU's)
double smaller = -1;
- xbt_swag_foreach(_action, p_runningActionSet) {
- action = dynamic_cast<CpuActionLmmPtr>(static_cast<ActionPtr>(_action));
+ ActionList *actionSet = getRunningActionSet();
+ for(ActionList::iterator it(actionSet->begin()), itend(actionSet->end())
+ ; it != itend ; ++it) {
+ action = static_cast<CpuAction*>(&*it);
if (smaller < 0) {
- smaller = action->m_lastUpdate;
+ smaller = action->getLastUpdate();
continue;
}
- if (action->m_lastUpdate < smaller) {
- smaller = action->m_lastUpdate;
+ if (action->getLastUpdate() < smaller) {
+ smaller = action->getLastUpdate();
}
}
if (smaller > 0) {
TRACE_last_timestamp_to_dump = smaller;
}
}
-#endif
return;
}
void CpuModel::updateActionsStateFull(double now, double delta)
{
- void *_action, *_next_action;
- CpuActionLmmPtr action = NULL;
- xbt_swag_t running_actions = p_runningActionSet;
+ CpuAction *action = NULL;
+ ActionList *running_actions = getRunningActionSet();
- xbt_swag_foreach_safe(_action, _next_action, running_actions) {
- action = dynamic_cast<CpuActionLmmPtr>(static_cast<ActionPtr>(_action));
-#ifdef HAVE_TRACING
+ for(ActionList::iterator it(running_actions->begin()), itNext=it, itend(running_actions->end())
+ ; it != itend ; it=itNext) {
+ ++itNext;
+ action = static_cast<CpuAction*>(&*it);
if (TRACE_is_enabled()) {
- CpuPtr x = (CpuPtr) lmm_constraint_id(lmm_get_cnst_from_var
- (p_maxminSystem, action->p_variable, 0));
+ Cpu *cpu = static_cast<Cpu*> (lmm_constraint_id(lmm_get_cnst_from_var(getMaxminSystem(), action->getVariable(), 0)) );
- TRACE_surf_host_set_utilization(x->m_name,
- action->p_category,
- lmm_variable_getvalue(action->p_variable),
+ TRACE_surf_host_set_utilization(cpu->getName(),
+ action->getCategory(),
+ lmm_variable_getvalue(action->getVariable()),
now - delta,
delta);
TRACE_last_timestamp_to_dump = now - delta;
}
-#endif
- double_update(&(action->m_remains),
- lmm_variable_getvalue(action->p_variable) * delta);
+ action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
- if (action->m_maxDuration != NO_MAX_DURATION)
- double_update(&(action->m_maxDuration), delta);
+ if (action->getMaxDuration() != NO_MAX_DURATION)
+ action->updateMaxDuration(delta);
- if ((action->m_remains <= 0) &&
- (lmm_get_variable_weight(action->p_variable) > 0)) {
- action->m_finish = surf_get_clock();
- action->setState(SURF_ACTION_DONE);
-
- } else if ((action->m_maxDuration != NO_MAX_DURATION) &&
- (action->m_maxDuration <= 0)) {
- action->m_finish = surf_get_clock();
- action->setState(SURF_ACTION_DONE);
+ if ((action->getRemainsNoUpdate() <= 0) &&
+ (lmm_get_variable_weight(action->getVariable()) > 0)) {
+ action->finish();
+ action->setState(Action::State::done);
+ } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
+ (action->getMaxDuration() <= 0)) {
+ action->finish();
+ action->setState(Action::State::done);
}
- action->updateEnergy();
}
-
- return;
}
/************
* Resource *
************/
+Cpu::Cpu(Model *model, simgrid::s4u::Host *host, xbt_dynar_t speedPerPstate, int core)
+ : Cpu(model, host, NULL/*constraint*/, speedPerPstate, core)
+{
+}
+
+Cpu::Cpu(Model *model, simgrid::s4u::Host *host, lmm_constraint_t constraint,
+ xbt_dynar_t speedPerPstate, int core)
+ : Resource(model, host->name().c_str(), constraint)
+ , coresAmount_(core)
+ , host_(host)
+{
+ xbt_assert(core > 0, "Host %s must have at least one core, not 0.", host->name().c_str());
+
+ speed_.peak = xbt_dynar_get_as(speedPerPstate, 0/*pstate*/, double);
+ speed_.scale = 1;
+ host->pimpl_cpu = this;
+ xbt_assert(speed_.scale > 0, "Speed of host %s must be >0", host->name().c_str());
+
+ // Copy the power peak array:
+ speedPerPstate_ = xbt_dynar_new(sizeof(double), nullptr);
+ unsigned long n = xbt_dynar_length(speedPerPstate);
+ for (unsigned long i = 0; i != n; ++i) {
+ double value = xbt_dynar_get_as(speedPerPstate, i, double);
+ xbt_dynar_push(speedPerPstate_, &value);
+ }
+
+ xbt_assert(model == surf_cpu_model_pm || core==1, "Currently, VM cannot be multicore");
+
+ if (model->getUpdateMechanism() != UM_UNDEFINED) {
+ p_constraintCore = xbt_new(lmm_constraint_t, core);
+ p_constraintCoreId = xbt_new(void*, core);
+
+ for (int i = 0; i < core; i++) {
+ /* just for a unique id, never used as a string. */
+ p_constraintCoreId[i] = bprintf("%s:%i", host->name().c_str(), i);
+ p_constraintCore[i] = lmm_constraint_new(model->getMaxminSystem(), p_constraintCoreId[i], speed_.scale * speed_.peak);
+ }
+ }
+}
+
+Cpu::~Cpu()
+{
+ if (p_constraintCoreId){
+ for (int i = 0; i < coresAmount_; i++)
+ xbt_free(p_constraintCoreId[i]);
+ xbt_free(p_constraintCore);
+ }
+ xbt_free(p_constraintCoreId);
+ xbt_dynar_free(&speedPerPstate_);
+}
+
+double Cpu::getCurrentPowerPeak()
+{
+ return speed_.peak;
+}
+
+int Cpu::getNbPStates()
+{
+ return xbt_dynar_length(speedPerPstate_);
+}
+
+void Cpu::setPState(int pstate_index)
+{
+ xbt_dynar_t plist = speedPerPstate_;
+ xbt_assert(pstate_index <= (int)xbt_dynar_length(plist),
+ "Invalid parameters for CPU %s (pstate %d > length of pstates %d)", getName(), pstate_index, (int)xbt_dynar_length(plist));
+
+ double new_peak_speed = xbt_dynar_get_as(plist, pstate_index, double);
+ pstate_ = pstate_index;
+ speed_.peak = new_peak_speed;
+
+ onSpeedChange();
+}
+
+int Cpu::getPState()
+{
+ return pstate_;
+}
+
+double Cpu::getPowerPeakAt(int pstate_index)
+{
+ xbt_dynar_t plist = speedPerPstate_;
+ xbt_assert((pstate_index <= (int)xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)");
+
+ return xbt_dynar_get_as(plist, pstate_index, double);
+}
double Cpu::getSpeed(double load)
{
- return load * m_powerPeak;
+ return load * speed_.peak;
}
double Cpu::getAvailableSpeed()
{
/* number between 0 and 1 */
- return m_powerScale;
+ return speed_.scale;
+}
+
+void Cpu::onSpeedChange() {
+ TRACE_surf_host_set_speed(surf_get_clock(), getName(), coresAmount_ * speed_.scale * speed_.peak);
}
+
int Cpu::getCore()
{
- return m_core;
+ return coresAmount_;
}
-CpuLmm::CpuLmm(CpuModelPtr model, const char* name, xbt_dict_t properties, int core, double powerPeak, double powerScale)
-: ResourceLmm(), Cpu(model, name, properties, core, powerPeak, powerScale) {
- /* At now, we assume that a VM does not have a multicore CPU. */
- if (core > 1)
- xbt_assert(model == surf_cpu_model_pm);
-
- p_constraintCore = xbt_new(lmm_constraint_t, core);
- p_constraintCoreId = xbt_new(void*, core);
+void Cpu::setStateTrace(tmgr_trace_t trace)
+{
+ xbt_assert(stateEvent_==NULL,"Cannot set a second state trace to Host %s", host_->name().c_str());
- int i;
- for (i = 0; i < core; i++) {
- /* just for a unique id, never used as a string. */
- p_constraintCoreId[i] = bprintf("%s:%i", name, i);
- p_constraintCore[i] = lmm_constraint_new(p_model->p_maxminSystem, p_constraintCoreId[i], m_powerScale * m_powerPeak);
- }
+ stateEvent_ = future_evt_set->add_trace(trace, 0.0, this);
}
+void Cpu::setSpeedTrace(tmgr_trace_t trace)
+{
+ xbt_assert(speed_.event==NULL,"Cannot set a second speed trace to Host %s", host_->name().c_str());
-CpuLmm::~CpuLmm(){
- if (p_constraintCore){
- for (int i = 0; i < m_core; i++) {
- xbt_free(p_constraintCoreId[i]);
- }
- xbt_free(p_constraintCore);
- xbt_free(p_constraintCoreId);
- }
+ speed_.event = future_evt_set->add_trace(trace, 0.0, this);
}
+
/**********
* Action *
**********/
-void CpuActionLmm::updateRemainingLazy(double now)
+void CpuAction::updateRemainingLazy(double now)
{
- double delta = 0.0;
+ xbt_assert(getStateSet() == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
+ xbt_assert(getPriority() > 0, "You're updating an action that seems suspended.");
- xbt_assert(p_stateSet == p_model->p_runningActionSet,
- "You're updating an action that is not running.");
+ double delta = now - lastUpdate_;
- /* bogus priority, skip it */
- xbt_assert(m_priority > 0,
- "You're updating an action that seems suspended.");
+ if (remains_ > 0) {
+ XBT_CDEBUG(surf_kernel, "Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
+ double_update(&(remains_), lastValue_ * delta, sg_maxmin_precision*sg_surf_precision);
- delta = now - m_lastUpdate;
-
- if (m_remains > 0) {
- XBT_CDEBUG(surf_kernel, "Updating action(%p): remains was %lf, last_update was: %lf", this, m_remains, m_lastUpdate);
- double_update(&(m_remains), m_lastValue * delta);
-
-#ifdef HAVE_TRACING
if (TRACE_is_enabled()) {
- CpuPtr cpu = (CpuPtr) lmm_constraint_id(lmm_get_cnst_from_var(p_model->p_maxminSystem, p_variable, 0));
- TRACE_surf_host_set_utilization(cpu->m_name, p_category, m_lastValue, m_lastUpdate, now - m_lastUpdate);
+ Cpu *cpu = static_cast<Cpu*>(lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
+ TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
}
-#endif
- XBT_CDEBUG(surf_kernel, "Updating action(%p): remains is now %lf", this, m_remains);
+ XBT_CDEBUG(surf_kernel, "Updating action(%p): remains is now %f", this, remains_);
}
- m_lastUpdate = now;
- m_lastValue = lmm_variable_getvalue(p_variable);
-}
-
-void CpuActionLmm::setBound(double bound)
-{
- XBT_IN("(%p,%g)", this, bound);
- m_bound = bound;
- lmm_update_variable_bound(p_model->p_maxminSystem, p_variable, bound);
-
- if (p_model->p_updateMechanism == UM_LAZY)
- heapRemove(p_model->p_actionHeap);
- XBT_OUT();
+ lastUpdate_ = now;
+ lastValue_ = lmm_variable_getvalue(getVariable());
}
/*
* action object does not have the information about the location where the
* action is being executed.
*/
-void CpuActionLmm::setAffinity(CpuPtr _cpu, unsigned long mask)
+void CpuAction::setAffinity(Cpu *cpu, unsigned long mask)
{
- lmm_variable_t var_obj = p_variable;
- CpuLmmPtr cpu = reinterpret_cast<CpuLmmPtr>(_cpu);
+ lmm_variable_t var_obj = getVariable();
XBT_IN("(%p,%lx)", this, mask);
{
unsigned long nbits = 0;
/* FIXME: There is much faster algorithms doing this. */
- for (int i = 0; i < cpu->m_core; i++) {
+ for (int i = 0; i < cpu->coresAmount_; i++) {
unsigned long has_affinity = (1UL << i) & mask;
if (has_affinity)
nbits += 1;
}
- if (nbits > 1) {
- XBT_CRITICAL("Do not specify multiple cores for an affinity mask.");
- XBT_CRITICAL("See the comment in cpu_action_set_affinity().");
- DIE_IMPOSSIBLE;
- }
+ xbt_assert(nbits <= 1, "Affinity mask cannot span over multiple cores.");
}
- for (int i = 0; i < cpu->m_core; i++) {
- XBT_DEBUG("clear affinity %p to cpu-%d@%s", this, i, cpu->m_name);
- lmm_shrink(cpu->p_model->p_maxminSystem, cpu->p_constraintCore[i], var_obj);
+ for (int i = 0; i < cpu->coresAmount_; i++) {
+ XBT_DEBUG("clear affinity %p to cpu-%d@%s", this, i, cpu->getName());
+ lmm_shrink(cpu->getModel()->getMaxminSystem(), cpu->p_constraintCore[i], var_obj);
unsigned long has_affinity = (1UL << i) & mask;
if (has_affinity) {
* accept affinity settings on a future host. We might be able to assign
* zero to elem->value to maintain such inactive affinity settings in the
* system. But, this will make the system complex. */
- XBT_DEBUG("set affinity %p to cpu-%d@%s", this, i, cpu->m_name);
- lmm_expand(cpu->p_model->p_maxminSystem, cpu->p_constraintCore[i], var_obj, 1.0);
+ XBT_DEBUG("set affinity %p to cpu-%d@%s", this, i, cpu->getName());
+ lmm_expand(cpu->getModel()->getMaxminSystem(), cpu->p_constraintCore[i], var_obj, 1.0);
}
}
- if (cpu->p_model->p_updateMechanism == UM_LAZY) {
+ if (cpu->getModel()->getUpdateMechanism() == UM_LAZY) {
/* FIXME (hypervisor): Do we need to do something for the LAZY mode? */
}
-
XBT_OUT();
}
+
+simgrid::xbt::signal<void(simgrid::surf::CpuAction*, Action::State)> CpuAction::onStateChange;
+
+void CpuAction::setState(Action::State state){
+ Action::State previous = getState();
+ Action::setState(state);
+ onStateChange(this, previous);
+}
+std::list<Cpu*> CpuAction::cpus() {
+ std::list<Cpu*> retlist;
+ lmm_system_t sys = getModel()->getMaxminSystem();
+ int llen = lmm_get_number_of_cnst_from_var(sys, getVariable());
+
+ for(int i = 0; i<llen; i++)
+ retlist.push_back( (Cpu*)(lmm_constraint_id( lmm_get_cnst_from_var(sys, getVariable(), i) )) );
+
+ return retlist;
+}
+
+}
+}
