X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7af22fcabb7df979cd48b73a40109efda738de65..040d8fa855d2b6ac9884f68108a09b935570be21:/src/plugins/link_energy_wifi.cpp diff --git a/src/plugins/link_energy_wifi.cpp b/src/plugins/link_energy_wifi.cpp index 9ca5de418c..2a57a2b21f 100644 --- a/src/plugins/link_energy_wifi.cpp +++ b/src/plugins/link_energy_wifi.cpp @@ -1,84 +1,33 @@ -/* Copyright (c) 2017-2020. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2017-2022. 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 "simgrid/Exception.hpp" -#include "simgrid/plugins/energy.h" -#include "simgrid/s4u/Engine.hpp" -#include "simgrid/s4u/Host.hpp" -#include "simgrid/s4u/Link.hpp" -#include "src/surf/network_interface.hpp" -#include "src/surf/network_wifi.hpp" -#include "src/surf/surf_interface.hpp" -#include "surf/surf.hpp" -#include "src/kernel/lmm/maxmin.hpp" -#include "xbt/config.hpp" +#include +#include +#include + +#include "src/kernel/activity/CommImpl.hpp" +#include "src/kernel/resource/StandardLinkImpl.hpp" +#include "src/kernel/resource/WifiLinkImpl.hpp" #include #include -#include SIMGRID_REGISTER_PLUGIN(link_energy_wifi, "Energy wifi test", &sg_wifi_energy_plugin_init); -/** @degroup plugin_link_energy_wifi Plugin WiFi energy - * +/** @defgroup plugin_link_energy_wifi Plugin WiFi energy + * * This is the WiFi energy plugin, accounting for the dissipated energy of WiFi links. */ -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(link_energy_wifi, surf, "Logging specific to the link energy wifi plugin"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(link_energy_wifi, kernel, "Logging specific to the link energy wifi plugin"); namespace simgrid { namespace plugin { class XBT_PRIVATE LinkEnergyWifi { - -public: - static simgrid::xbt::Extension EXTENSION_ID; - - explicit LinkEnergyWifi(simgrid::s4u::Link* ptr) : link_(ptr) {} - - ~LinkEnergyWifi() = default; - LinkEnergyWifi() = delete; - - /** - * Update the energy consumed by link_ when transmissions start or end - */ - void update(const simgrid::kernel::resource::NetworkAction &); - - /** - * Update the energy consumed when link_ is destroyed - */ - void update_destroy(); - - /** - * Fetches energy consumption values from the platform file. - * The user can specify: - * - wifi_watt_values: energy consumption in each state (IDLE:Tx:Rx:SLEEP) - * default: 0.82:1.14:0.94:0.10 - * - controlDuration: duration of active beacon transmissions per second - * default: 0.0036 - */ - void init_watts_range_list(); - - double get_consumed_energy(void) { return eDyn_ + eStat_; } - /** Get the dynamic part of the energy for this link */ - double get_energy_dynamic(void) { return eDyn_; } - double get_energy_static(void) { return eStat_; } - double get_duration_comm(void) { return dur_TxRx_; } - double get_duration_idle(void) { return dur_idle_; } - - /** Set the power consumed by this link while idle */ - void set_power_idle(double value) { pIdle_ = value; } - /** Set the power consumed by this link while transmitting */ - void set_power_tx(double value) { pTx_ = value; } - /** Set the power consumed by this link while receiving */ - void set_power_rx(double value) { pRx_ = value; } - /** Set the power consumed by this link while sleeping */ - void set_power_sleep(double value) { pSleep_ = value; } - -private: // associative array keeping size of data already sent for a given flow (required for interleaved actions) - std::map> flowTmp{}; + std::map> flowTmp{}; // WiFi link the plugin instance is attached to s4u::Link* link_{}; @@ -105,16 +54,53 @@ private: double dur_TxRx_{0}; // Duration of transmission double dur_idle_{0}; // Duration of idle time bool valuesInit_{false}; + +public: + static xbt::Extension EXTENSION_ID; + + explicit LinkEnergyWifi(s4u::Link* ptr) : link_(ptr) {} + LinkEnergyWifi() = delete; + + /** Update the energy consumed by link_ when transmissions start or end */ + void update(); + + /** Update the energy consumed when link_ is destroyed */ + void update_destroy(); + + /** + * Fetches energy consumption values from the platform file. + * The user can specify: + * - wifi_watt_values: energy consumption in each state (IDLE:Tx:Rx:SLEEP) + * default: 0.82:1.14:0.94:0.10 + * - controlDuration: duration of active beacon transmissions per second + * default: 0.0036 + */ + void init_watts_range_list(); + + double get_consumed_energy(void) const { return eDyn_ + eStat_; } + /** Get the dynamic part of the energy for this link */ + double get_energy_dynamic(void) const { return eDyn_; } + double get_energy_static(void) const { return eStat_; } + double get_duration_comm(void) const { return dur_TxRx_; } + double get_duration_idle(void) const { return dur_idle_; } + + /** Set the power consumed by this link while idle */ + void set_power_idle(double value) { pIdle_ = value; } + /** Set the power consumed by this link while transmitting */ + void set_power_tx(double value) { pTx_ = value; } + /** Set the power consumed by this link while receiving */ + void set_power_rx(double value) { pRx_ = value; } + /** Set the power consumed by this link while sleeping */ + void set_power_sleep(double value) { pSleep_ = value; } }; xbt::Extension LinkEnergyWifi::EXTENSION_ID; void LinkEnergyWifi::update_destroy() { - simgrid::kernel::resource::NetworkWifiLink* wifi_link = - static_cast(link_->get_impl()); - double duration = surf_get_clock() - prev_update_; - prev_update_ = surf_get_clock(); + auto const* wifi_link = static_cast(link_->get_impl()); + double duration = simgrid::s4u::Engine::get_clock() - prev_update_; + prev_update_ = simgrid::s4u::Engine::get_clock(); dur_idle_ += duration; @@ -125,43 +111,39 @@ void LinkEnergyWifi::update_destroy() XBT_DEBUG("finish eStat_ += %f * %f * (%d+1) | eStat = %f", duration, pIdle_, wifi_link->get_host_count(), eStat_); } -void LinkEnergyWifi::update(const simgrid::kernel::resource::NetworkAction&) +void LinkEnergyWifi::update() { init_watts_range_list(); - double duration = surf_get_clock() - prev_update_; - prev_update_ = surf_get_clock(); + double duration = simgrid::s4u::Engine::get_clock() - prev_update_; + prev_update_ = simgrid::s4u::Engine::get_clock(); // we don't update for null durations if(duration < 1e-6) return; - simgrid::kernel::resource::NetworkWifiLink* wifi_link = - static_cast(link_->get_impl()); - - const kernel::lmm::Variable* var; + auto const* wifi_link = static_cast(link_->get_impl()); + const kernel::lmm::Element* elem = nullptr; /** * We update the energy consumed by each flow active on the link since the previous update. - * To do this, we need to know how much time each flow has been effectively sending data on the WiFi link since the previous update (durUsage). - * We compute this value using the size of the flow, - * the amount of data already spent (using flowTmp), - * as well as the bandwidth used by the flow since the previous update (using LMM variables) - * Since flows are sharing the medium, the total active duration on the link is equal to the transmission/reception duration used by the flow with the longest active time since the previous update + * + * To do this, we need to know how much time each flow has been effectively sending data on the WiFi link since the + * previous update (durUsage). We compute this value using the size of the flow, the amount of data already spent + * (using flowTmp), as well as the bandwidth used by the flow since the previous update (using LMM variables). Since + * flows are sharing the medium, the total active duration on the link is equal to the transmission/reception duration + * used by the flow with the longest active time since the previous update */ double durUsage = 0; - while((var = wifi_link->get_constraint()->get_variable(&elem))) { - auto* action = static_cast(var->get_id()); - XBT_DEBUG("cost: %f action value: %f link rate 1: %f link rate 2: %f", action->get_cost(), action->get_variable()->get_value(), wifi_link->get_host_rate(&action->get_src()),wifi_link->get_host_rate(&action->get_dst())); - action->get_variable(); - - double du = 0; // durUsage on the current flow - std::map>::iterator it; - - if(action->get_variable()->get_value()) { - it = flowTmp.find(action); - + while (const auto* var = wifi_link->get_constraint()->get_variable(&elem)) { + auto* action = static_cast(var->get_id()); + XBT_DEBUG("cost: %f action value: %f link rate 1: %f link rate 2: %f", action->get_cost(), action->get_rate(), + wifi_link->get_host_rate(&action->get_src()), wifi_link->get_host_rate(&action->get_dst())); + + if (action->get_rate() != 0.0) { + auto it = flowTmp.find(action); + // if the flow has not been registered, initialize it: 0 bytes sent, and not updated since its creation timestamp if(it == flowTmp.end()) flowTmp[action] = std::pair(0, action->get_start_time()); @@ -172,18 +154,19 @@ void LinkEnergyWifi::update(const simgrid::kernel::resource::NetworkAction&) * The active duration of the link is equal to the amount of data it had to send divided by the bandwidth on the link. * If this is longer than the duration since the previous update, active duration = now - previous_update */ - du = (action->get_cost()-it->second.first) / action->get_variable()->get_value(); + double du = // durUsage on the current flow + (action->get_cost() - it->second.first) / action->get_rate(); - if(du > surf_get_clock()-it->second.second) - du = surf_get_clock()-it->second.second; + if (du > simgrid::s4u::Engine::get_clock() - it->second.second) + du = simgrid::s4u::Engine::get_clock() - it->second.second; // if the flow has been more active than the others if(du > durUsage) durUsage = du; // update the amount of data already sent by the flow - it->second.first += du*action->get_variable()->get_value(); - it->second.second = surf_get_clock(); + it->second.first += du * action->get_rate(); + it->second.second = simgrid::s4u::Engine::get_clock(); // important: if the transmission finished, remove it (needed for performance and multi-message flows) if(it->second.first >= action->get_cost()) @@ -202,13 +185,13 @@ void LinkEnergyWifi::update(const simgrid::kernel::resource::NetworkAction&) * - if idle i.e. get_usage = 0, update P_{stat} * P_{tot} = P_{dyn}+P_{stat} */ - if(link_->get_usage()){ + if (link_->get_usage() != 0.0) { eDyn_ += /*duration * */ durUsage * ((wifi_link->get_host_count() * pRx_) + pTx_); eStat_ += (duration - durUsage) * pIdle_ * (wifi_link->get_host_count() + 1); XBT_DEBUG("eDyn += %f * ((%d * %f) + %f) | eDyn = %f (durusage =%f)", durUsage, wifi_link->get_host_count(), pRx_, pTx_, eDyn_, durUsage); dur_TxRx_ += duration; - }else{ + } else { dur_idle_ += duration; eStat_ += (duration - (duration * control_duration_)) * pIdle_ * (wifi_link->get_host_count() + 1); } @@ -281,6 +264,17 @@ void LinkEnergyWifi::init_watts_range_list() } // namespace simgrid using simgrid::plugin::LinkEnergyWifi; +/* **************************** events callback *************************** */ +static void on_communication(const simgrid::kernel::activity::CommImpl& comm) +{ + for (const auto* link : comm.get_traversed_links()) { + if (link != nullptr && link->get_sharing_policy() == simgrid::s4u::Link::SharingPolicy::WIFI) { + auto* link_energy = link->extension(); + XBT_DEBUG("Update %s on Comm Start/End", link->get_cname()); + link_energy->update(); + } + } +} void sg_wifi_energy_plugin_init() { @@ -292,23 +286,23 @@ void sg_wifi_energy_plugin_init() /** * Attaching to events: - * - on_creation to initialize the plugin - * - on_destruction to produce final energy results - * - on_communication_state_change: to account the energy when communications are updated - * - on_communicate: '' + * - Link::on_creation to initialize the plugin + * - Link::on_destruction to produce final energy results + * - Link::on_communication_state_change: to account for the energy when communications are updated + * - CommImpl::on_start and CommImpl::on_completion: to account for the energy during communications */ - simgrid::s4u::Link::on_creation.connect([](simgrid::s4u::Link& link) { + simgrid::s4u::Link::on_creation_cb([](simgrid::s4u::Link& link) { // verify the link is appropriate to WiFi energy computations if (link.get_sharing_policy() == simgrid::s4u::Link::SharingPolicy::WIFI) { XBT_DEBUG("Wifi Link: %s, initialization of wifi energy plugin", link.get_cname()); - LinkEnergyWifi* plugin = new LinkEnergyWifi(&link); + auto* plugin = new LinkEnergyWifi(&link); link.extension_set(plugin); } else { XBT_DEBUG("Not Wifi Link: %s, wifi energy on link not computed", link.get_cname()); } }); - simgrid::s4u::Link::on_destruction.connect([](simgrid::s4u::Link const& link) { + simgrid::s4u::Link::on_destruction_cb([](simgrid::s4u::Link const& link) { // output energy values if WiFi link if (link.get_sharing_policy() == simgrid::s4u::Link::SharingPolicy::WIFI) { link.extension()->update_destroy(); @@ -320,30 +314,16 @@ void sg_wifi_energy_plugin_init() } }); - simgrid::s4u::Link::on_communication_state_change.connect( - [](simgrid::kernel::resource::NetworkAction const& action, simgrid::kernel::resource::Action::State previous) { - // update WiFi links encountered during the communication - for (simgrid::kernel::resource::LinkImpl* link : action.get_links()) { - if (link != nullptr && link->get_sharing_policy() == simgrid::s4u::Link::SharingPolicy::WIFI) { - link->get_iface()->extension()->update(action); - } - } - }); - - simgrid::s4u::Link::on_communicate.connect([](const simgrid::kernel::resource::NetworkAction& action) { - const simgrid::kernel::resource::NetworkWifiAction* actionWifi = dynamic_cast(&action); - - if(actionWifi == nullptr) - return; - - auto link_src = actionWifi->get_src_link(); - auto link_dst = actionWifi->get_dst_link(); - - if(link_src != nullptr) - link_src->get_iface()->extension()->update(action); - if(link_dst != nullptr) - link_dst->get_iface()->extension()->update(action); - + simgrid::s4u::Link::on_communication_state_change_cb([](simgrid::kernel::resource::NetworkAction const& action, + simgrid::kernel::resource::Action::State /* previous */) { + // update WiFi links encountered during the communication + for (auto const* link : action.get_links()) { + if (link != nullptr && link->get_sharing_policy() == simgrid::s4u::Link::SharingPolicy::WIFI) { + link->get_iface()->extension()->update(); + } + } }); + simgrid::kernel::activity::CommImpl::on_start.connect(&on_communication); + simgrid::kernel::activity::CommImpl::on_completion.connect(&on_communication); }