/* 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,
int autoload_surf_cpu_model = 1;
void_f_void_t surf_cpu_model_init_preparse = NULL;
-CpuModel *surf_cpu_model_pm;
-CpuModel *surf_cpu_model_vm;
+simgrid::surf::CpuModel *surf_cpu_model_pm;
+simgrid::surf::CpuModel *surf_cpu_model_vm;
+
+namespace simgrid {
+namespace surf {
+
/*************
* Callbacks *
*************/
-Cpu *getActionCpu(CpuAction *action) {
- return static_cast<Cpu*>(lmm_constraint_id(lmm_get_cnst_from_var
- (action->getModel()->getMaxminSystem(),
- action->getVariable(), 0)));
-}
+std::list<Cpu*> getActionCpus(CpuAction *action) {
+ std::list<Cpu*> retlist;
+ lmm_system_t sys = action->getModel()->getMaxminSystem();
+ int llen = lmm_get_number_of_cnst_from_var(sys, action->getVariable());
-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_parse_init(sg_platf_host_cbarg_t host){
- surf_cpu_model_pm->createCpu(
- host->id,
- host->power_peak,
- host->pstate,
- host->power_scale,
- host->power_trace,
- host->core_amount,
- host->initial_state,
- host->state_trace,
- host->properties);
+ for(int i = 0; i<llen; i++) {
+ retlist.push_back( (Cpu*)(lmm_constraint_id( lmm_get_cnst_from_var(sys, action->getVariable(), i) )) );
+ }
+ return retlist;
}
-void cpu_add_traces(){
- surf_cpu_model_pm->addTraces();
-}
+simgrid::xbt::signal<void(CpuAction*, e_surf_action_state_t, e_surf_action_state_t)> cpuActionStateChangedCallbacks;
/*********
* Model *
*********/
+
void CpuModel::updateActionsStateLazy(double now, double /*delta*/)
{
CpuAction *action;
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)) );
/************
* Resource *
************/
-
-Cpu::Cpu(){
- surf_callback_emit(cpuCreatedCallbacks, this);
- physCpu = NULL;
-}
-
-Cpu::Cpu(Model *model, const char *name, xbt_dict_t props,
- int core, double powerPeak, double powerScale)
- : Resource(model, name, props)
- , m_core(core)
- , m_powerPeak(powerPeak)
- , m_powerScale(powerScale)
- , p_constraintCore(NULL)
- , p_constraintCoreId(NULL)
+Cpu::Cpu(Model *model, simgrid::s4u::Host *host,
+ xbt_dynar_t speedPeakList, int core, double speedPeak)
+ : Cpu(model, host, NULL/*constraint*/, speedPeakList, core, speedPeak)
{
- surf_callback_emit(cpuCreatedCallbacks, this);
- physCpu = NULL;
}
-Cpu::Cpu(Model *model, const char *name, xbt_dict_t props,
- lmm_constraint_t constraint, int core, double powerPeak, double powerScale)
- : Resource(model, name, props, constraint)
- , m_core(core)
- , m_powerPeak(powerPeak)
- , m_powerScale(powerScale)
+Cpu::Cpu(Model *model, simgrid::s4u::Host *host, lmm_constraint_t constraint,
+ xbt_dynar_t speedPeakList, int core, double speedPeak)
+ : Resource(model, host->name().c_str(), constraint)
+ , coresAmount_(core)
+ , host_(host)
{
- surf_callback_emit(cpuCreatedCallbacks, this);
- /* At now, we assume that a VM does not have a multicore CPU. */
+ speed_.peak = speedPeak;
+ speed_.scale = 1;
+ host->pimpl_cpu = this;
+ xbt_assert(speed_.scale > 0, "Available speed has to be >0");
+
+ // Copy the power peak array:
+ speedPeakList_ = xbt_dynar_new(sizeof(double), nullptr);
+ unsigned long n = xbt_dynar_length(speedPeakList);
+ for (unsigned long i = 0; i != n; ++i) {
+ double value = xbt_dynar_get_as(speedPeakList, i, double);
+ xbt_dynar_push(speedPeakList_, &value);
+ }
+
+ /* Currently, we assume that a VM does not have a multicore CPU. */
if (core > 1)
xbt_assert(model == surf_cpu_model_pm);
- p_constraintCore = NULL;
- p_constraintCoreId = NULL;
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++) {
/* 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_powerScale * m_powerPeak);
+ 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);
}
}
- physCpu = NULL;
}
-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);
+ if (speedPeakList_)
+ xbt_dynar_free(&speedPeakList_);
}
double Cpu::getCurrentPowerPeak()
{
- return m_powerPeak;
+ return speed_.peak;
+}
+
+int Cpu::getNbPStates()
+{
+ return xbt_dynar_length(speedPeakList_);
+}
+
+void Cpu::setPState(int pstate_index)
+{
+ xbt_dynar_t plist = speedPeakList_;
+ 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 = speedPeakList_;
+ 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;
}
-int Cpu::getCore()
-{
- return m_core;
+void Cpu::onSpeedChange() {
+ TRACE_surf_host_set_speed(surf_get_clock(), getName(),
+ coresAmount_ * speed_.scale * speed_.peak);
}
-void Cpu::setState(e_surf_resource_state_t state)
+
+int Cpu::getCore()
{
- e_surf_resource_state_t old = Resource::getState();
- Resource::setState(state);
- surf_callback_emit(cpuStateChangedCallbacks, this, old, state);
+ return coresAmount_;
}
-void Cpu::setVirtual(Cpu *physCpu)
+void Cpu::setStateTrace(tmgr_trace_t trace)
{
- this->physCpu = physCpu;
- XBT_DEBUG("The CPU is virtual so associate the cpu energy to the physical cpu instead of creating a new one");
- std::map<Cpu*, CpuEnergy*>::iterator cpu_energy_it = surf_energy->find(physCpu);
- xbt_assert(cpu_energy_it != surf_energy->end(), "The cpu is not in surf_energy.");
- (*surf_energy)[this] = cpu_energy_it->second;
-}
+ xbt_assert(stateEvent_==NULL,"Cannot set a second state trace to Host %s", host_->name().c_str());
-Cpu* Cpu::isVirtual(void)
+ stateEvent_ = future_evt_set->add_trace(trace, 0.0, this);
+}
+void Cpu::setSpeedTrace(tmgr_trace_t trace)
{
- return physCpu;
+ 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 *
**********/
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;
}
}
- 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();
}
+simgrid::xbt::signal<void(simgrid::surf::CpuAction*, e_surf_action_state_t)> CpuAction::onStateChange;
+
void CpuAction::setState(e_surf_action_state_t state){
- e_surf_action_state_t old = getState();
+ e_surf_action_state_t previous = getState();
Action::setState(state);
- surf_callback_emit(cpuActionStateChangedCallbacks, this, old, state);
+ onStateChange(this, previous);
+}
+
+}
}
