* under the terms of the license (GNU LGPL) which comes with this package. */
#include <utility>
-#include <vector>
-#include <simgrid/plugins/energy.h>
-#include <simgrid/simix.hpp>
-#include <src/surf/plugins/energy.hpp>
-#include <src/surf/cpu_interface.hpp>
-#include <src/surf/virtual_machine.hpp>
+#include "simgrid/plugins/energy.h"
+#include "simgrid/simix.hpp"
+#include "src/surf/plugins/energy.hpp"
+#include "src/surf/cpu_interface.hpp"
+#include "src/surf/virtual_machine.hpp"
/** @addtogroup SURF_plugin_energy
In this example, the idle consumption is 95 Watts, 93 Watts and 90 Watts in each pstate while the CPU burn consumption are at 200 Watts,
170 Watts and 150 Watts respectively.
-To change the pstate of a given CPU, use the following functions: #MSG_host_get_nb_pstates(), #MSG_host_set_pstate(), #MSG_host_get_power_peak_at().
+To change the pstate of a given CPU, use the following functions: #MSG_host_get_nb_pstates(), simgrid#s4u#Host#set_pstate(), #MSG_host_get_power_peak_at().
-To simulate the energy-related elements, first call the #sg_energy_plugin_init() before your #MSG_init(),
-and then use the following function to retrieve the consumption of a given host: #MSG_host_get_consumed_energy().
+To simulate the energy-related elements, first call the simgrid#energy#sg_energy_plugin_init() before your #MSG_init(),
+and then use the following function to retrieve the consumption of a given host: MSG_host_get_consumed_energy().
*/
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_energy, surf,
/* Computes the consumption so far. Called lazily on need. */
void HostEnergy::update()
{
- simgrid::surf::Host* surf_host = host->extension<simgrid::surf::Host>();
- double start_time = this->last_updated;
- double finish_time = surf_get_clock();
- double cpu_load;
- if (surf_host->p_cpu->m_speedPeak == 0)
- // Some users declare a pstate of speed 0 flops (eg to model boot time).
- // We consider that the machine is then fully loaded. That's arbitrary but it avoids a NaN
- cpu_load = 1;
- else
- cpu_load = lmm_constraint_get_usage(surf_host->p_cpu->getConstraint())
- / surf_host->p_cpu->m_speedPeak;
-
- if (cpu_load > 1) // A machine with a load > 1 consumes as much as a fully loaded machine, not mores
- cpu_load = 1;
-
- double previous_energy = this->total_energy;
-
- double instantaneous_consumption;
- if (host->is_off())
- instantaneous_consumption = this->watts_off;
- else
- instantaneous_consumption = this->getCurrentWattsValue(cpu_load);
-
- double energy_this_step = instantaneous_consumption*(finish_time-start_time);
-
- this->total_energy = previous_energy + energy_this_step;
- this->last_updated = finish_time;
-
- XBT_DEBUG("[update_energy of %s] period=[%.2f-%.2f]; current power peak=%.0E flop/s; consumption change: %.2f J -> %.2f J",
- surf_host->getName(), start_time, finish_time, surf_host->p_cpu->m_speedPeak, previous_energy, energy_this_step);
+ simgrid::surf::HostImpl* surf_host = host->extension<simgrid::surf::HostImpl>();
+ double start_time = this->last_updated;
+ double finish_time = surf_get_clock();
+ double cpu_load;
+ if (surf_host->p_cpu->speed_.peak == 0)
+ // Some users declare a pstate of speed 0 flops (eg to model boot time).
+ // We consider that the machine is then fully loaded. That's arbitrary but it avoids a NaN
+ cpu_load = 1;
+ else
+ cpu_load = lmm_constraint_get_usage(surf_host->p_cpu->getConstraint())
+ / surf_host->p_cpu->speed_.peak;
+
+ if (cpu_load > 1) // A machine with a load > 1 consumes as much as a fully loaded machine, not mores
+ cpu_load = 1;
+
+ double previous_energy = this->total_energy;
+
+ double instantaneous_consumption;
+ if (host->isOff())
+ instantaneous_consumption = this->watts_off;
+ else
+ instantaneous_consumption = this->getCurrentWattsValue(cpu_load);
+
+ double energy_this_step = instantaneous_consumption*(finish_time-start_time);
+
+ this->total_energy = previous_energy + energy_this_step;
+ this->last_updated = finish_time;
+
+ XBT_DEBUG("[update_energy of %s] period=[%.2f-%.2f]; current power peak=%.0E flop/s; consumption change: %.2f J -> %.2f J",
+ surf_host->getName(), start_time, finish_time, surf_host->p_cpu->speed_.peak, previous_energy, energy_this_step);
}
HostEnergy::HostEnergy(simgrid::s4u::Host *ptr) :
{
initWattsRangeList();
- if (host->properties() != NULL) {
- char* off_power_str = (char*)xbt_dict_get_or_null(
- host->properties(), "watt_off");
- if (off_power_str != NULL)
- watts_off = atof(off_power_str);
+ if (host->properties() != nullptr) {
+ char* off_power_str = (char*)xbt_dict_get_or_null(host->properties(), "watt_off");
+ if (off_power_str != nullptr) {
+ char *msg = bprintf("Invalid value for property watt_off of host %s: %%s",host->name().c_str());
+ watts_off = xbt_str_parse_double(off_power_str, msg);
+ xbt_free(msg);
+ }
else
watts_off = 0;
}
/** @brief Computes the power consumed by the host according to the current pstate and processor load */
double HostEnergy::getCurrentWattsValue(double cpu_load)
{
- xbt_assert(!power_range_watts_list.empty(),
+ xbt_assert(!power_range_watts_list.empty(),
"No power range properties specified for host %s", host->name().c_str());
/* min_power corresponds to the idle power (cpu load = 0) */
double min_power = range.first;
double max_power = range.second;
double power_slope = max_power - min_power;
- double current_power = min_power + cpu_load * power_slope;
+ double current_power = min_power + cpu_load * power_slope;
- XBT_DEBUG("[get_current_watts] min_power=%f, max_power=%f, slope=%f", min_power, max_power, power_slope);
- XBT_DEBUG("[get_current_watts] Current power (watts) = %f, load = %f", current_power, cpu_load);
+ XBT_DEBUG("[get_current_watts] min_power=%f, max_power=%f, slope=%f", min_power, max_power, power_slope);
+ XBT_DEBUG("[get_current_watts] Current power (watts) = %f, load = %f", current_power, cpu_load);
- return current_power;
+ return current_power;
}
double HostEnergy::getConsumedEnergy()
{
- if (last_updated < surf_get_clock()) // We need to simcall this as it modifies the environment
- simgrid::simix::kernel(std::bind(&HostEnergy::update, this));
+ if (last_updated < surf_get_clock()) // We need to simcall this as it modifies the environment
+ simgrid::simix::kernelImmediate(std::bind(&HostEnergy::update, this));
- return total_energy;
+ return total_energy;
}
void HostEnergy::initWattsRangeList()
{
- if (host->properties() == NULL)
- return;
- char* all_power_values_str =
+ if (host->properties() == nullptr)
+ return;
+ char* all_power_values_str =
(char*)xbt_dict_get_or_null(host->properties(), "watt_per_state");
- if (all_power_values_str == NULL)
- return;
-
- xbt_dynar_t all_power_values = xbt_str_split(all_power_values_str, ",");
- int pstate_nb = xbt_dynar_length(all_power_values);
-
- for (int i=0; i< pstate_nb; i++)
- {
- /* retrieve the power values associated with the current pstate */
- xbt_dynar_t current_power_values = xbt_str_split(xbt_dynar_get_as(all_power_values, i, char*), ":");
- xbt_assert(xbt_dynar_length(current_power_values) > 1,
- "Power properties incorrectly defined - "
+ if (all_power_values_str == nullptr)
+ return;
+
+ xbt_dynar_t all_power_values = xbt_str_split(all_power_values_str, ",");
+ int pstate_nb = xbt_dynar_length(all_power_values);
+
+ for (int i=0; i< pstate_nb; i++)
+ {
+ /* retrieve the power values associated with the current pstate */
+ xbt_dynar_t current_power_values = xbt_str_split(xbt_dynar_get_as(all_power_values, i, char*), ":");
+ xbt_assert(xbt_dynar_length(current_power_values) > 1,
+ "Power properties incorrectly defined - "
"could not retrieve min and max power values for host %s",
- host->name().c_str());
+ host->name().c_str());
- /* min_power corresponds to the idle power (cpu load = 0) */
- /* max_power is the power consumed at 100% cpu load */
+ /* min_power corresponds to the idle power (cpu load = 0) */
+ /* max_power is the power consumed at 100% cpu load */
+ char *msg_min = bprintf("Invalid min value for pstate %d on host %s: %%s", i, host->name().c_str());
+ char *msg_max = bprintf("Invalid min value for pstate %d on host %s: %%s", i, host->name().c_str());
power_range_watts_list.push_back(power_range(
- atof(xbt_dynar_get_as(current_power_values, 0, char*)),
- atof(xbt_dynar_get_as(current_power_values, 1, char*))
+ xbt_str_parse_double(xbt_dynar_get_as(current_power_values, 0, char*), msg_min),
+ xbt_str_parse_double(xbt_dynar_get_as(current_power_values, 1, char*), msg_max)
));
- }
- xbt_dynar_free(&all_power_values);
+ xbt_free(msg_min);
+ xbt_free(msg_max);
+
+ xbt_dynar_free(¤t_power_values);
+ }
+ xbt_dynar_free(&all_power_values);
}
}
/* **************************** events callback *************************** */
static void onCreation(simgrid::s4u::Host& host) {
- simgrid::surf::Host* surf_host = host.extension<simgrid::surf::Host>();
+ simgrid::surf::HostImpl* surf_host = host.extension<simgrid::surf::HostImpl>();
if (dynamic_cast<simgrid::surf::VirtualMachine*>(surf_host)) // Ignore virtual machines
return;
host.extension_set(new HostEnergy(&host));
}
-static void onActionStateChange(simgrid::surf::CpuAction *action, e_surf_action_state_t previous) {
- const char *name = getActionCpu(action)->getName();
- simgrid::surf::Host *host = sg_host_by_name(name)->extension<simgrid::surf::Host>();
- simgrid::surf::VirtualMachine *vm = dynamic_cast<simgrid::surf::VirtualMachine*>(host);
- if (vm) // If it's a VM, take the corresponding PM
- host = vm->getPm()->extension<simgrid::surf::Host>();
-
- HostEnergy *host_energy = host->p_host->extension<HostEnergy>();
-
- if(host_energy->last_updated < surf_get_clock())
- host_energy->update();
+static void onActionStateChange(simgrid::surf::CpuAction *action, simgrid::surf::Action::State previous) {
+ for(simgrid::surf::Cpu* cpu : action->cpus()) {
+ const char *name = cpu->getName();
+ sg_host_t sghost = sg_host_by_name(name);
+ if(sghost == nullptr)
+ continue;
+ simgrid::surf::HostImpl *host = sghost->extension<simgrid::surf::HostImpl>();
+ simgrid::surf::VirtualMachine *vm = dynamic_cast<simgrid::surf::VirtualMachine*>(host);
+ if (vm) // If it's a VM, take the corresponding PM
+ host = vm->getPm()->extension<simgrid::surf::HostImpl>();
+
+ HostEnergy *host_energy = host->piface->extension<HostEnergy>();
+
+ if(host_energy->last_updated < surf_get_clock())
+ host_energy->update();
+ }
}
static void onHostStateChange(simgrid::s4u::Host &host) {
- simgrid::surf::Host* surf_host = host.extension<simgrid::surf::Host>();
+ simgrid::surf::HostImpl* surf_host = host.extension<simgrid::surf::HostImpl>();
if (dynamic_cast<simgrid::surf::VirtualMachine*>(surf_host)) // Ignore virtual machines
return;
static void onHostDestruction(simgrid::s4u::Host& host) {
// Ignore virtual machines
- simgrid::surf::Host* surf_host = host.extension<simgrid::surf::Host>();
+ simgrid::surf::HostImpl* surf_host = host.extension<simgrid::surf::HostImpl>();
if (dynamic_cast<simgrid::surf::VirtualMachine*>(surf_host))
return;
HostEnergy *host_energy = host.extension<HostEnergy>();
