/* 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
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");
-int autoload_surf_cpu_model = 1;
void_f_void_t surf_cpu_model_init_preparse = NULL;
simgrid::surf::CpuModel *surf_cpu_model_pm;
namespace simgrid {
namespace surf {
-simgrid::xbt::FacetLevel<simgrid::Host, Cpu> Cpu::LEVEL;
-
-void Cpu::init()
-{
- if (!LEVEL.valid())
- LEVEL = simgrid::Host::add_level<simgrid::surf::Cpu>();
-}
-
/*************
* Callbacks *
*************/
-Cpu *getActionCpu(CpuAction *action) {
- return static_cast<Cpu*>(lmm_constraint_id(lmm_get_cnst_from_var
- (action->getModel()->getMaxminSystem(),
- action->getVariable(), 0)));
-}
-
-surf_callback(void, Cpu*) cpuCreatedCallbacks;
-surf_callback(void, Cpu*) cpuDestructedCallbacks;
-surf_callback(void, Cpu*, e_surf_resource_state_t, e_surf_resource_state_t) cpuStateChangedCallbacks;
-surf_callback(void, CpuAction*, e_surf_action_state_t, e_surf_action_state_t) cpuActionStateChangedCallbacks;
-void cpu_add_traces(){
- surf_cpu_model_pm->addTraces();
-}
+simgrid::xbt::signal<void(CpuAction*, Action::State, Action::State)> cpuActionStateChangedCallbacks;
/*********
* Model *
*********/
+CpuModel::~CpuModel() {}
+
void CpuModel::updateActionsStateLazy(double now, double /*delta*/)
{
CpuAction *action;
/* set the remains to 0 due to precision problems when updating the remaining amount */
action->setRemains(0);
- action->setState(SURF_ACTION_DONE);
+ action->setState(Action::State::done);
action->heapRemove(getActionHeap()); //FIXME: strange call since action was already popped
}
if (TRACE_is_enabled()) {
for(ActionList::iterator it(running_actions->begin()), itNext=it, itend(running_actions->end())
; it != itend ; it=itNext) {
- ++itNext;
+ ++itNext;
action = static_cast<CpuAction*>(&*it);
if (TRACE_is_enabled()) {
- Cpu *x = static_cast<Cpu*> (lmm_constraint_id(lmm_get_cnst_from_var(getMaxminSystem(), action->getVariable(), 0)) );
+ Cpu *cpu = static_cast<Cpu*> (lmm_constraint_id(lmm_get_cnst_from_var(getMaxminSystem(), action->getVariable(), 0)) );
- TRACE_surf_host_set_utilization(x->getName(),
+ TRACE_surf_host_set_utilization(cpu->getName(),
action->getCategory(),
lmm_variable_getvalue(action->getVariable()),
now - delta,
if ((action->getRemainsNoUpdate() <= 0) &&
(lmm_get_variable_weight(action->getVariable()) > 0)) {
action->finish();
- action->setState(SURF_ACTION_DONE);
+ action->setState(Action::State::done);
} else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
(action->getMaxDuration() <= 0)) {
action->finish();
- action->setState(SURF_ACTION_DONE);
+ action->setState(Action::State::done);
}
}
+}
- return;
+bool CpuModel::next_occuring_event_isIdempotent()
+{
+ return true;
}
/************
* Resource *
************/
-Cpu::Cpu()
+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, const char *name, xbt_dict_t props,
- int core, double speedPeak, double speedScale,
- e_surf_resource_state_t stateInitial)
- : Resource(model, name, props, stateInitial)
- , m_core(core)
- , m_speedPeak(speedPeak)
- , m_speedScale(speedScale)
+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);
+ }
-}
-
-Cpu::Cpu(Model *model, const char *name, xbt_dict_t props,
- lmm_constraint_t constraint, int core, double speedPeak,
- double speedScale, e_surf_resource_state_t stateInitial)
- : Resource(model, name, props, constraint, stateInitial)
- , m_core(core)
- , m_speedPeak(speedPeak)
- , m_speedScale(speedScale)
-{
- /* At now, we assume that a VM does not have a multicore CPU. */
- if (core > 1)
- xbt_assert(model == surf_cpu_model_pm);
+ 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);
+ p_constraintCore = xbt_new(lmm_constraint_t, core);
+ p_constraintCoreId = xbt_new(void*, core);
- int i;
- for (i = 0; i < core; i++) {
+ for (int 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(model->getMaxminSystem(), p_constraintCoreId[i], m_speedScale * m_speedPeak);
+ 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(Model *model, const char *name, xbt_dict_t props,
- lmm_constraint_t constraint, int core, double speedPeak, double speedScale)
-: Cpu(model, name, props, constraint, core, speedPeak, speedScale, SURF_RESOURCE_ON)
-{}
-
-Cpu::Cpu(Model *model, const char *name, xbt_dict_t props,
- int core, double speedPeak, double speedScale)
-: Cpu(model, name, props, core, speedPeak, speedScale, SURF_RESOURCE_ON)
-{}
-
-Cpu::~Cpu(){
- surf_callback_emit(cpuDestructedCallbacks, this);
+Cpu::~Cpu()
+{
if (p_constraintCoreId){
- for (int i = 0; i < m_core; i++) {
- xbt_free(p_constraintCoreId[i]);
- }
+ for (int i = 0; i < coresAmount_; i++)
+ xbt_free(p_constraintCoreId[i]);
xbt_free(p_constraintCore);
}
- if (p_constraintCoreId)
- xbt_free(p_constraintCoreId);
+ xbt_free(p_constraintCoreId);
+ xbt_dynar_free(&speedPerPstate_);
}
double Cpu::getCurrentPowerPeak()
{
- return m_speedPeak;
+ 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_speedPeak;
+ return load * speed_.peak;
}
double Cpu::getAvailableSpeed()
{
/* number between 0 and 1 */
- return m_speedScale;
+ 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_;
}
-void Cpu::setState(e_surf_resource_state_t state)
+void Cpu::setStateTrace(tmgr_trace_t trace)
{
- e_surf_resource_state_t old = Resource::getState();
- Resource::setState(state);
- surf_callback_emit(cpuStateChangedCallbacks, this, old, state);
-}
+ xbt_assert(stateEvent_==NULL,"Cannot set a second state trace to Host %s", host_->name().c_str());
-void Cpu::plug(simgrid::Host* host)
+ stateEvent_ = future_evt_set->add_trace(trace, 0.0, this);
+}
+void Cpu::setSpeedTrace(tmgr_trace_t trace)
{
- if (this->m_host != nullptr)
- xbt_die("Aleady plugged into host %s", host->id().c_str());
- host->set_facet(this);
- this->m_host = host;
- simgrid::surf::cpuCreatedCallbacks(this);
- simgrid::surf::cpuStateChangedCallbacks(this,
- SURF_RESOURCE_ON, this->getState());
+ xbt_assert(speed_.event==NULL,"Cannot set a second speed trace to Host %s", host_->name().c_str());
+
+ speed_.event = future_evt_set->add_trace(trace, 0.0, this);
}
+
/**********
* Action *
**********/
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(getStateSet() == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
+ xbt_assert(getPriority() > 0, "You're updating an action that seems suspended.");
- /* bogus priority, skip it */
- xbt_assert(getPriority() > 0,
- "You're updating an action that seems suspended.");
+ double delta = now - lastUpdate_;
- delta = now - m_lastUpdate;
-
- if (m_remains > 0) {
- XBT_CDEBUG(surf_kernel, "Updating action(%p): remains was %f, last_update was: %f", this, m_remains, m_lastUpdate);
- double_update(&(m_remains), m_lastValue * delta, sg_maxmin_precision*sg_surf_precision);
+ 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);
if (TRACE_is_enabled()) {
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(), m_lastValue, m_lastUpdate, now - m_lastUpdate);
+ TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
}
- XBT_CDEBUG(surf_kernel, "Updating action(%p): remains is now %f", this, m_remains);
+ XBT_CDEBUG(surf_kernel, "Updating action(%p): remains is now %f", this, remains_);
}
- m_lastUpdate = now;
- m_lastValue = lmm_variable_getvalue(getVariable());
+ lastUpdate_ = now;
+ lastValue_ = lmm_variable_getvalue(getVariable());
}
/*
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++) {
+ 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);
XBT_OUT();
}
-void CpuAction::setState(e_surf_action_state_t state){
- e_surf_action_state_t old = getState();
+simgrid::xbt::signal<void(simgrid::surf::CpuAction*, Action::State)> CpuAction::onStateChange;
+
+void CpuAction::setState(Action::State state){
+ Action::State previous = getState();
Action::setState(state);
- surf_callback_emit(cpuActionStateChangedCallbacks, this, old, 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;
}
}
