-/* Copyright (c) 2013-2014. The SimGrid Team.
+/* 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
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;
-CpuModelPtr surf_cpu_model_pm;
-CpuModelPtr surf_cpu_model_vm;
+simgrid::surf::CpuModel *surf_cpu_model_pm;
+simgrid::surf::CpuModel *surf_cpu_model_vm;
+
+namespace simgrid {
+namespace surf {
+
/*************
* Callbacks *
*************/
-CpuPtr getActionCpu(CpuActionPtr action) {
- return static_cast<CpuPtr>(lmm_constraint_id(lmm_get_cnst_from_var
- (action->getModel()->getMaxminSystem(),
- action->getVariable(), 0)));
-}
-
-surf_callback(void, CpuPtr) cpuCreatedCallbacks;
-surf_callback(void, CpuPtr) cpuDestructedCallbacks;
-surf_callback(void, CpuPtr, e_surf_resource_state_t, e_surf_resource_state_t) cpuStateChangedCallbacks;
-surf_callback(void, CpuActionPtr, e_surf_action_state_t, e_surf_action_state_t) cpuActionStateChangedCallbacks;
-
-void parse_cpu_init(sg_platf_host_cbarg_t host){
- surf_cpu_model_pm->parseInit(host);
-}
-
-void add_traces_cpu(){
- surf_cpu_model_pm->addTraces();
-}
+simgrid::xbt::signal<void(CpuAction*, e_surf_action_state_t, e_surf_action_state_t)> cpuActionStateChangedCallbacks;
/*********
* Model *
*********/
-void CpuModel::parseInit(sg_platf_host_cbarg_t host)
-{
- createResource(host->id,
- host->power_peak,
- host->pstate,
- host->power_scale,
- host->power_trace,
- host->core_amount,
- host->initial_state,
- host->state_trace,
- host->properties);
-}
void CpuModel::updateActionsStateLazy(double now, double /*delta*/)
{
- CpuActionPtr action;
+ CpuAction *action;
while ((xbt_heap_size(getActionHeap()) > 0)
&& (double_equals(xbt_heap_maxkey(getActionHeap()), now, sg_surf_precision))) {
- action = static_cast<CpuActionPtr>(static_cast<ActionPtr>(xbt_heap_pop(getActionHeap())));
+ 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 = static_cast<CpuPtr>(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(cpu->getName(), action->getCategory(),
lmm_variable_getvalue(action->getVariable()),
action->getLastUpdate(),
now - action->getLastUpdate());
}
-#endif
action->finish();
XBT_CDEBUG(surf_kernel, "Action %p finished", action);
action->setState(SURF_ACTION_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;
- ActionListPtr actionSet = getRunningActionSet();
+ ActionList *actionSet = getRunningActionSet();
for(ActionList::iterator it(actionSet->begin()), itend(actionSet->end())
; it != itend ; ++it) {
- action = static_cast<CpuActionPtr>(&*it);
+ action = static_cast<CpuAction*>(&*it);
if (smaller < 0) {
smaller = action->getLastUpdate();
continue;
TRACE_last_timestamp_to_dump = smaller;
}
}
-#endif
return;
}
void CpuModel::updateActionsStateFull(double now, double delta)
{
- CpuActionPtr action = NULL;
- ActionListPtr running_actions = getRunningActionSet();
+ CpuAction *action = NULL;
+ ActionList *running_actions = getRunningActionSet();
for(ActionList::iterator it(running_actions->begin()), itNext=it, itend(running_actions->end())
; it != itend ; it=itNext) {
- ++itNext;
- action = static_cast<CpuActionPtr>(&*it);
-#ifdef HAVE_TRACING
+ ++itNext;
+ action = static_cast<CpuAction*>(&*it);
if (TRACE_is_enabled()) {
- CpuPtr x = (CpuPtr) 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,
delta);
TRACE_last_timestamp_to_dump = now - delta;
}
-#endif
action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
action->setState(SURF_ACTION_DONE);
}
}
-
- return;
}
/************
* Resource *
************/
-
-Cpu::Cpu(){
- surf_callback_emit(cpuCreatedCallbacks, this);
-}
-
-Cpu::Cpu(ModelPtr 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 speedPerPstate, int core)
+ : Cpu(model, host, NULL/*constraint*/, speedPerPstate, core)
{
- surf_callback_emit(cpuCreatedCallbacks, this);
}
-Cpu::Cpu(ModelPtr 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 speedPerPstate, int core)
+ : 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. */
- if (core > 1)
- xbt_assert(model == surf_cpu_model_pm);
+ 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");
- 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++) {
+ 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_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);
}
}
}
-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_powerPeak;
+ 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_;
}
-void Cpu::setState(e_surf_resource_state_t state)
+void Cpu::setStateTrace(tmgr_trace_t trace)
+{
+ xbt_assert(stateEvent_==NULL,"Cannot set a second state trace to Host %s", host_->name().c_str());
+
+ stateEvent_ = future_evt_set->add_trace(trace, 0.0, this);
+}
+void Cpu::setSpeedTrace(tmgr_trace_t trace)
{
- e_surf_resource_state_t old = Resource::getState();
- Resource::setState(state);
- surf_callback_emit(cpuStateChangedCallbacks, this, old, state);
+ 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.");
-
- delta = now - m_lastUpdate;
+ double 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);
-#ifdef HAVE_TRACING
if (TRACE_is_enabled()) {
- CpuPtr cpu = static_cast<CpuPtr>(lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
+ 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);
}
-#endif
XBT_CDEBUG(surf_kernel, "Updating action(%p): remains is now %f", this, m_remains);
}
* action object does not have the information about the location where the
* action is being executed.
*/
-void CpuAction::setAffinity(CpuPtr cpu, unsigned long mask)
+void CpuAction::setAffinity(Cpu *cpu, unsigned long mask)
{
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++) {
+ 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);
+}
+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;
+}
+
+}
}
