X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7cb738cbfc955558a7d598dae374b78fb44490f2..49bd5a514ec76a1535f114fa2859db0347bfe5e8:/src/surf/network_cm02.cpp diff --git a/src/surf/network_cm02.cpp b/src/surf/network_cm02.cpp index e13ab8fd84..40cce3eb82 100644 --- a/src/surf/network_cm02.cpp +++ b/src/surf/network_cm02.cpp @@ -1,15 +1,17 @@ -/* Copyright (c) 2013-2017. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2013-2019. 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 - #include "network_cm02.hpp" #include "simgrid/s4u/Host.hpp" -#include "simgrid/sg_config.h" -#include "src/instr/instr_private.hpp" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals -#include "src/kernel/lmm/maxmin.hpp" +#include "simgrid/sg_config.hpp" +#include "src/kernel/resource/profile/Event.hpp" +#include "src/surf/surf_interface.hpp" +#include "surf/surf.hpp" + +#include +#include XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network); @@ -17,9 +19,6 @@ double sg_latency_factor = 1.0; /* default value; can be set by model or from co double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */ double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */ -double sg_tcp_gamma = 0.0; -int sg_network_crosstraffic = 0; - /************************************************************************/ /* New model based on optimizations discussed during Pedro Velho's thesis*/ /************************************************************************/ @@ -36,15 +35,13 @@ int sg_network_crosstraffic = 0; /* } */ void surf_network_model_init_LegrandVelho() { - if (surf_network_model) - return; + xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice"); - surf_network_model = new simgrid::surf::NetworkCm02Model(); - all_existing_models->push_back(surf_network_model); + surf_network_model = new simgrid::kernel::resource::NetworkCm02Model(); - xbt_cfg_setdefault_double("network/latency-factor", 13.01); - xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97); - xbt_cfg_setdefault_double("network/weight-S", 20537); + simgrid::config::set_default("network/latency-factor", 13.01); + simgrid::config::set_default("network/bandwidth-factor", 0.97); + simgrid::config::set_default("network/weight-S", 20537); } /***************************************************************************/ @@ -60,159 +57,77 @@ void surf_network_model_init_LegrandVelho() /* } */ void surf_network_model_init_CM02() { + xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice"); - if (surf_network_model) - return; - - xbt_cfg_setdefault_double("network/latency-factor", 1.0); - xbt_cfg_setdefault_double("network/bandwidth-factor", 1.0); - xbt_cfg_setdefault_double("network/weight-S", 0.0); - - surf_network_model = new simgrid::surf::NetworkCm02Model(); - all_existing_models->push_back(surf_network_model); -} - -/***************************************************************************/ -/* The models from Steven H. Low */ -/***************************************************************************/ -/* @article{Low03, */ -/* author={Steven H. Low}, */ -/* title={A Duality Model of {TCP} and Queue Management Algorithms}, */ -/* year={2003}, */ -/* journal={{IEEE/ACM} Transactions on Networking}, */ -/* volume={11}, number={4}, */ -/* } */ -void surf_network_model_init_Reno() -{ - if (surf_network_model) - return; - - set_default_protocol_function(simgrid::kernel::lmm::func_reno_f, simgrid::kernel::lmm::func_reno_fp, - simgrid::kernel::lmm::func_reno_fpi); - - xbt_cfg_setdefault_double("network/latency-factor", 13.01); - xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97); - xbt_cfg_setdefault_double("network/weight-S", 20537); - - surf_network_model = new simgrid::surf::NetworkCm02Model(&simgrid::kernel::lmm::lagrange_solve); - all_existing_models->push_back(surf_network_model); -} - - -void surf_network_model_init_Reno2() -{ - if (surf_network_model) - return; - - set_default_protocol_function(simgrid::kernel::lmm::func_reno2_f, simgrid::kernel::lmm::func_reno2_fp, - simgrid::kernel::lmm::func_reno2_fpi); - - xbt_cfg_setdefault_double("network/latency-factor", 13.01); - xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97); - xbt_cfg_setdefault_double("network/weight-S", 20537); - - surf_network_model = new simgrid::surf::NetworkCm02Model(&simgrid::kernel::lmm::lagrange_solve); - all_existing_models->push_back(surf_network_model); -} - -void surf_network_model_init_Vegas() -{ - if (surf_network_model) - return; - - set_default_protocol_function(simgrid::kernel::lmm::func_vegas_f, simgrid::kernel::lmm::func_vegas_fp, - simgrid::kernel::lmm::func_vegas_fpi); - - xbt_cfg_setdefault_double("network/latency-factor", 13.01); - xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97); - xbt_cfg_setdefault_double("network/weight-S", 20537); + simgrid::config::set_default("network/latency-factor", 1.0); + simgrid::config::set_default("network/bandwidth-factor", 1.0); + simgrid::config::set_default("network/weight-S", 0.0); - surf_network_model = new simgrid::surf::NetworkCm02Model(&simgrid::kernel::lmm::lagrange_solve); - all_existing_models->push_back(surf_network_model); + surf_network_model = new simgrid::kernel::resource::NetworkCm02Model(); } namespace simgrid { -namespace surf { +namespace kernel { +namespace resource { -NetworkCm02Model::NetworkCm02Model() - :NetworkModel() +NetworkCm02Model::NetworkCm02Model(kernel::lmm::System* (*make_new_lmm_system)(bool)) + : NetworkModel(simgrid::config::get_value("network/optim") == "Full" ? Model::UpdateAlgo::FULL + : Model::UpdateAlgo::LAZY) { - std::string optim = xbt_cfg_get_string("network/optim"); - bool select = xbt_cfg_get_boolean("network/maxmin-selective-update"); - - if (optim == "Full") { - setUpdateMechanism(UM_FULL); - selectiveUpdate_ = select; - } else if (optim == "Lazy") { - setUpdateMechanism(UM_LAZY); - selectiveUpdate_ = true; - xbt_assert(select || (xbt_cfg_is_default_value("network/maxmin-selective-update")), - "You cannot disable selective update when using the lazy update mechanism"); - } else { - xbt_die("Unsupported optimization (%s) for this model. Accepted: Full, Lazy.", optim.c_str()); - } + all_existing_models.push_back(this); - maxminSystem_ = new simgrid::kernel::lmm::System(selectiveUpdate_); - loopback_ = NetworkCm02Model::createLink("__loopback__", 498000000, 0.000015, SURF_LINK_FATPIPE); + std::string optim = simgrid::config::get_value("network/optim"); + bool select = simgrid::config::get_value("network/maxmin-selective-update"); - if (getUpdateMechanism() == UM_LAZY) { - modifiedSet_ = new ActionLmmList(); - maxminSystem_->keep_track = modifiedSet_; + if (optim == "Lazy") { + xbt_assert(select || simgrid::config::is_default("network/maxmin-selective-update"), + "You cannot disable network selective update when using the lazy update mechanism"); + select = true; } -} -NetworkCm02Model::NetworkCm02Model(void (*specificSolveFun)(lmm_system_t self)) : NetworkCm02Model() -{ - maxminSystem_->solve_fun = specificSolveFun; + set_maxmin_system(make_new_lmm_system(select)); + loopback_ = NetworkCm02Model::create_link("__loopback__", std::vector(1, 498000000), 0.000015, + s4u::Link::SharingPolicy::FATPIPE); } -LinkImpl* NetworkCm02Model::createLink(const std::string& name, double bandwidth, double latency, - e_surf_link_sharing_policy_t policy) +LinkImpl* NetworkCm02Model::create_link(const std::string& name, const std::vector& bandwidths, double latency, + s4u::Link::SharingPolicy policy) { - return new NetworkCm02Link(this, name, bandwidth, latency, policy, maxminSystem_); + if (policy == s4u::Link::SharingPolicy::WIFI) { + return (new NetworkWifiLink(this, name, bandwidths, policy, get_maxmin_system())); + } + xbt_assert(bandwidths.size() == 1, "Non WIFI links must use only 1 bandwidth."); + return new NetworkCm02Link(this, name, bandwidths[0], latency, policy, get_maxmin_system()); } -void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/) +void NetworkCm02Model::update_actions_state_lazy(double now, double /*delta*/) { - while (not actionHeapIsEmpty() && double_equals(actionHeapTopDate(), now, sg_surf_precision)) { + while (not get_action_heap().empty() && double_equals(get_action_heap().top_date(), now, sg_surf_precision)) { - NetworkCm02Action* action = static_cast(actionHeapPop()); + NetworkCm02Action* action = static_cast(get_action_heap().pop()); XBT_DEBUG("Something happened to action %p", action); - if (TRACE_is_enabled()) { - int n = action->getVariable()->get_number_of_constraint(); - - for (int i = 0; i < n; i++){ - lmm_constraint_t constraint = action->getVariable()->get_constraint(i); - NetworkCm02Link* link = static_cast(constraint->get_id()); - double value = action->getVariable()->get_value() * action->getVariable()->get_constraint_weight(i); - TRACE_surf_link_set_utilization(link->getCname(), action->getCategory(), value, action->getLastUpdate(), - now - action->getLastUpdate()); - } - } // if I am wearing a latency hat - if (action->getHat() == LATENCY) { + if (action->get_type() == ActionHeap::Type::latency) { XBT_DEBUG("Latency paid for action %p. Activating", action); - maxminSystem_->update_variable_weight(action->getVariable(), action->weight_); - action->heapRemove(getActionHeap()); - action->refreshLastUpdate(); - - // if I am wearing a max_duration or normal hat - } else if (action->getHat() == MAX_DURATION || action->getHat() == NORMAL) { - // no need to communicate anymore - // assume that flows that reached max_duration have remaining of 0 + get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_); + get_action_heap().remove(action); + action->set_last_update(); + + // if I am wearing a max_duration or normal hat + } else if (action->get_type() == ActionHeap::Type::max_duration || action->get_type() == ActionHeap::Type::normal) { + // no need to communicate anymore + // assume that flows that reached max_duration have remaining of 0 XBT_DEBUG("Action %p finished", action); - action->setRemains(0); - action->finish(Action::State::done); - action->heapRemove(getActionHeap()); + action->finish(Action::State::FINISHED); + get_action_heap().remove(action); } } } - -void NetworkCm02Model::updateActionsStateFull(double now, double delta) +void NetworkCm02Model::update_actions_state_full(double /*now*/, double delta) { - for (auto it = std::begin(*getRunningActionSet()); it != std::end(*getRunningActionSet());) { + for (auto it = std::begin(*get_started_action_set()); it != std::end(*get_started_action_set());) { NetworkCm02Action& action = static_cast(*it); ++it; // increment iterator here since the following calls to action.finish() may invalidate it XBT_DEBUG("Something happened to action %p", &action); @@ -225,115 +140,133 @@ void NetworkCm02Model::updateActionsStateFull(double now, double delta) double_update(&deltap, action.latency_, sg_surf_precision); action.latency_ = 0.0; } - if (action.latency_ <= 0.0 && not action.isSuspended()) - maxminSystem_->update_variable_weight(action.getVariable(), action.weight_); + if (action.latency_ <= 0.0 && not action.is_suspended()) + get_maxmin_system()->update_variable_penalty(action.get_variable(), action.sharing_penalty_); } - if (TRACE_is_enabled()) { - int n = action.getVariable()->get_number_of_constraint(); - for (int i = 0; i < n; i++) { - lmm_constraint_t constraint = action.getVariable()->get_constraint(i); - NetworkCm02Link* link = static_cast(constraint->get_id()); - TRACE_surf_link_set_utilization( - link->getCname(), action.getCategory(), - (action.getVariable()->get_value() * action.getVariable()->get_constraint_weight(i)), - action.getLastUpdate(), now - action.getLastUpdate()); - } - } - if (not action.getVariable()->get_number_of_constraint()) { + + if (not action.get_variable()->get_number_of_constraint()) { /* There is actually no link used, hence an infinite bandwidth. This happens often when using models like * vivaldi. In such case, just make sure that the action completes immediately. */ - action.updateRemains(action.getRemains()); + action.update_remains(action.get_remains()); } - action.updateRemains(action.getVariable()->get_value() * delta); + action.update_remains(action.get_variable()->get_value() * delta); - if (action.getMaxDuration() > NO_MAX_DURATION) - action.updateMaxDuration(delta); + if (action.get_max_duration() != NO_MAX_DURATION) + action.update_max_duration(delta); - if (((action.getRemains() <= 0) && (action.getVariable()->get_weight() > 0)) || - ((action.getMaxDuration() > NO_MAX_DURATION) && (action.getMaxDuration() <= 0))) { - action.finish(Action::State::done); + if (((action.get_remains() <= 0) && (action.get_variable()->get_penalty() > 0)) || + ((action.get_max_duration() != NO_MAX_DURATION) && (action.get_max_duration() <= 0))) { + action.finish(Action::State::FINISHED); } } } Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double size, double rate) { - int failed = 0; double latency = 0.0; std::vector back_route; std::vector route; - XBT_IN("(%s,%s,%g,%g)", src->getCname(), dst->getCname(), size, rate); + XBT_IN("(%s,%s,%g,%g)", src->get_cname(), dst->get_cname(), size, rate); - src->routeTo(dst, route, &latency); - xbt_assert(not route.empty() || latency, + src->route_to(dst, route, &latency); + xbt_assert(not route.empty() || latency > 0, "You're trying to send data from %s to %s but there is no connecting path between these two hosts.", - src->getCname(), dst->getCname()); + src->get_cname(), dst->get_cname()); - for (auto const& link : route) - if (link->isOff()) - failed = 1; + bool failed = std::any_of(route.begin(), route.end(), [](const LinkImpl* link) { return not link->is_on(); }); - if (sg_network_crosstraffic == 1) { - dst->routeTo(src, back_route, nullptr); - for (auto const& link : back_route) - if (link->isOff()) - failed = 1; + if (cfg_crosstraffic) { + dst->route_to(src, back_route, nullptr); + if (not failed) + failed = + std::any_of(back_route.begin(), back_route.end(), [](const LinkImpl* link) { return not link->is_on(); }); } NetworkCm02Action *action = new NetworkCm02Action(this, size, failed); - action->weight_ = latency; + action->sharing_penalty_ = latency; action->latency_ = latency; action->rate_ = rate; - if (getUpdateMechanism() == UM_LAZY) { - action->refreshLastUpdate(); - } - double bandwidth_bound = -1.0; - if (sg_weight_S_parameter > 0) - for (auto const& link : route) - action->weight_ += sg_weight_S_parameter / link->bandwidth(); + if (get_update_algorithm() == Model::UpdateAlgo::LAZY) { + action->set_last_update(); + } - for (auto const& link : route) { - double bb = bandwidthFactor(size) * link->bandwidth(); - bandwidth_bound = (bandwidth_bound < 0.0) ? bb : std::min(bandwidth_bound, bb); + if (sg_weight_S_parameter > 0) { + action->sharing_penalty_ = + std::accumulate(route.begin(), route.end(), action->sharing_penalty_, [](double total, LinkImpl* const& link) { + return total + sg_weight_S_parameter / link->get_bandwidth(); + }); } - action->latCurrent_ = action->latency_; - action->latency_ *= latencyFactor(size); - action->rate_ = bandwidthConstraint(action->rate_, bandwidth_bound, size); + double bandwidth_bound = route.empty() ? -1.0 : get_bandwidth_factor(size) * route.front()->get_bandwidth(); + + for (auto const& link : route) + bandwidth_bound = std::min(bandwidth_bound, get_bandwidth_factor(size) * link->get_bandwidth()); + + action->lat_current_ = action->latency_; + action->latency_ *= get_latency_factor(size); + action->rate_ = get_bandwidth_constraint(action->rate_, bandwidth_bound, size); - int constraints_per_variable = route.size(); + size_t constraints_per_variable = route.size(); constraints_per_variable += back_route.size(); if (action->latency_ > 0) { - action->setVariable(maxminSystem_->variable_new(action, 0.0, -1.0, constraints_per_variable)); - if (getUpdateMechanism() == UM_LAZY) { + action->set_variable(get_maxmin_system()->variable_new(action, 0.0, -1.0, constraints_per_variable)); + if (get_update_algorithm() == Model::UpdateAlgo::LAZY) { // add to the heap the event when the latency is payed - XBT_DEBUG("Added action (%p) one latency event at date %f", action, action->latency_ + action->getLastUpdate()); - action->heapInsert(getActionHeap(), action->latency_ + action->getLastUpdate(), route.empty() ? NORMAL : LATENCY); + double date = action->latency_ + action->get_last_update(); + + ActionHeap::Type type = route.empty() ? ActionHeap::Type::normal : ActionHeap::Type::latency; + + XBT_DEBUG("Added action (%p) one latency event at date %f", action, date); + get_action_heap().insert(action, date, type); } } else - action->setVariable(maxminSystem_->variable_new(action, 1.0, -1.0, constraints_per_variable)); + action->set_variable(get_maxmin_system()->variable_new(action, 1.0, -1.0, constraints_per_variable)); if (action->rate_ < 0) { - maxminSystem_->update_variable_bound(action->getVariable(), - (action->latCurrent_ > 0) ? sg_tcp_gamma / (2.0 * action->latCurrent_) : -1.0); + get_maxmin_system()->update_variable_bound( + action->get_variable(), (action->lat_current_ > 0) ? cfg_tcp_gamma / (2.0 * action->lat_current_) : -1.0); } else { - maxminSystem_->update_variable_bound(action->getVariable(), - (action->latCurrent_ > 0) - ? std::min(action->rate_, sg_tcp_gamma / (2.0 * action->latCurrent_)) - : action->rate_); + get_maxmin_system()->update_variable_bound( + action->get_variable(), (action->lat_current_ > 0) + ? std::min(action->rate_, cfg_tcp_gamma / (2.0 * action->lat_current_)) + : action->rate_); } - for (auto const& link : route) - maxminSystem_->expand(link->constraint(), action->getVariable(), 1.0); + for (auto const& link : route) { + // Handle WIFI links + if (link->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) { + xbt_assert(!cfg_crosstraffic, + "Cross-traffic is not yet supported when using WIFI. Please use --cfg=network/crosstraffic:0"); + NetworkWifiLink* wifi_link = (NetworkWifiLink*)link; + + double src_rate = wifi_link->get_host_rate(src); + double dst_rate = wifi_link->get_host_rate(dst); + + // TODO: What do to when src and dst are on the same AP ? (for the moment we use src rate) + if (src_rate != -1 && dst_rate != -1) { + get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0 / src_rate); + } else { + xbt_assert( + !(src_rate == -1 && dst_rate == -1), + "Some Stations are not associated to any Access Point. Make sure to call set_host_rate on all Stations."); + if (src_rate != -1) + get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0 / src_rate); + else + get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0 / dst_rate); + } + } else { + get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0); + } + } - if (not back_route.empty()) { // sg_network_crosstraffic was activated - XBT_DEBUG("Fullduplex active adding backward flow using 5%%"); + if (cfg_crosstraffic) { + XBT_DEBUG("Crosstraffic active: adding backward flow using 5%% of the available bandwidth"); for (auto const& link : back_route) - maxminSystem_->expand(link->constraint(), action->getVariable(), .05); + get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), .05); // Change concurrency_share here, if you want that cross-traffic is included in the SURF concurrency // (You would also have to change simgrid::kernel::lmm::Element::get_concurrency()) @@ -341,7 +274,7 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz } XBT_OUT(); - simgrid::s4u::Link::onCommunicate(action, src, dst); + simgrid::s4u::Link::on_communicate(*action, src, dst); return action; } @@ -349,7 +282,7 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz * Resource * ************/ NetworkCm02Link::NetworkCm02Link(NetworkCm02Model* model, const std::string& name, double bandwidth, double latency, - e_surf_link_sharing_policy_t policy, lmm_system_t system) + s4u::Link::SharingPolicy policy, kernel::lmm::System* system) : LinkImpl(model, name, system->constraint_new(this, sg_bandwidth_factor * bandwidth)) { bandwidth_.scale = 1.0; @@ -358,139 +291,165 @@ NetworkCm02Link::NetworkCm02Link(NetworkCm02Model* model, const std::string& nam latency_.scale = 1.0; latency_.peak = latency; - if (policy == SURF_LINK_FATPIPE) - constraint()->unshare(); + if (policy == s4u::Link::SharingPolicy::FATPIPE) + get_constraint()->unshare(); - simgrid::s4u::Link::onCreation(this->piface_); + simgrid::s4u::Link::on_creation(this->piface_); } -void NetworkCm02Link::apply_event(tmgr_trace_event_t triggered, double value) +void NetworkCm02Link::apply_event(kernel::profile::Event* triggered, double value) { /* Find out which of my iterators was triggered, and react accordingly */ if (triggered == bandwidth_.event) { - setBandwidth(value); + set_bandwidth(value); tmgr_trace_event_unref(&bandwidth_.event); } else if (triggered == latency_.event) { - setLatency(value); + set_latency(value); tmgr_trace_event_unref(&latency_.event); - } else if (triggered == stateEvent_) { + } else if (triggered == state_event_) { if (value > 0) - turnOn(); + turn_on(); else { - lmm_variable_t var = nullptr; - const_lmm_element_t elem = nullptr; - double now = surf_get_clock(); - - turnOff(); - while ((var = constraint()->get_variable(&elem))) { - Action* action = static_cast(var->get_id()); - - if (action->getState() == Action::State::running || - action->getState() == Action::State::ready) { - action->setFinishTime(now); - action->setState(Action::State::failed); - } - } + turn_off(); } - tmgr_trace_event_unref(&stateEvent_); + tmgr_trace_event_unref(&state_event_); } else { xbt_die("Unknown event!\n"); } - XBT_DEBUG("There was a resource state event, need to update actions related to the constraint (%p)", constraint()); + XBT_DEBUG("There was a resource state event, need to update actions related to the constraint (%p)", + get_constraint()); } -void NetworkCm02Link::setBandwidth(double value) +void NetworkCm02Link::set_bandwidth(double value) { bandwidth_.peak = value; - model()->getMaxminSystem()->update_constraint_bound(constraint(), - sg_bandwidth_factor * (bandwidth_.peak * bandwidth_.scale)); - TRACE_surf_link_set_bandwidth(surf_get_clock(), getCname(), sg_bandwidth_factor * bandwidth_.peak * bandwidth_.scale); + get_model()->get_maxmin_system()->update_constraint_bound(get_constraint(), + sg_bandwidth_factor * (bandwidth_.peak * bandwidth_.scale)); + + LinkImpl::on_bandwidth_change(); if (sg_weight_S_parameter > 0) { double delta = sg_weight_S_parameter / value - sg_weight_S_parameter / (bandwidth_.peak * bandwidth_.scale); - lmm_variable_t var; - const_lmm_element_t elem = nullptr; - const_lmm_element_t nextelem = nullptr; + kernel::lmm::Variable* var; + const kernel::lmm::Element* elem = nullptr; + const kernel::lmm::Element* nextelem = nullptr; int numelem = 0; - while ((var = constraint()->get_variable_safe(&elem, &nextelem, &numelem))) { + while ((var = get_constraint()->get_variable_safe(&elem, &nextelem, &numelem))) { NetworkCm02Action* action = static_cast(var->get_id()); - action->weight_ += delta; - if (not action->isSuspended()) - model()->getMaxminSystem()->update_variable_weight(action->getVariable(), action->weight_); + action->sharing_penalty_ += delta; + if (not action->is_suspended()) + get_model()->get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_); } } } -void NetworkCm02Link::setLatency(double value) +void NetworkCm02Link::set_latency(double value) { double delta = value - latency_.peak; - lmm_variable_t var = nullptr; - const_lmm_element_t elem = nullptr; - const_lmm_element_t nextelem = nullptr; + kernel::lmm::Variable* var = nullptr; + const kernel::lmm::Element* elem = nullptr; + const kernel::lmm::Element* nextelem = nullptr; int numelem = 0; latency_.peak = value; - while ((var = constraint()->get_variable_safe(&elem, &nextelem, &numelem))) { + while ((var = get_constraint()->get_variable_safe(&elem, &nextelem, &numelem))) { NetworkCm02Action* action = static_cast(var->get_id()); - action->latCurrent_ += delta; - action->weight_ += delta; + action->lat_current_ += delta; + action->sharing_penalty_ += delta; if (action->rate_ < 0) - model()->getMaxminSystem()->update_variable_bound(action->getVariable(), - sg_tcp_gamma / (2.0 * action->latCurrent_)); + get_model()->get_maxmin_system()->update_variable_bound(action->get_variable(), NetworkModel::cfg_tcp_gamma / + (2.0 * action->lat_current_)); else { - model()->getMaxminSystem()->update_variable_bound( - action->getVariable(), std::min(action->rate_, sg_tcp_gamma / (2.0 * action->latCurrent_))); + get_model()->get_maxmin_system()->update_variable_bound( + action->get_variable(), std::min(action->rate_, NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_))); - if (action->rate_ < sg_tcp_gamma / (2.0 * action->latCurrent_)) { + if (action->rate_ < NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_)) { XBT_INFO("Flow is limited BYBANDWIDTH"); } else { - XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f", action->latCurrent_); + XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f", action->lat_current_); } } - if (not action->isSuspended()) - model()->getMaxminSystem()->update_variable_weight(action->getVariable(), action->weight_); + if (not action->is_suspended()) + get_model()->get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_); + } +} + +NetworkWifiLink::NetworkWifiLink(NetworkCm02Model* model, const std::string& name, std::vector bandwidths, + s4u::Link::SharingPolicy policy, lmm::System* system) + : NetworkCm02Link( + model, name, 1 / sg_bandwidth_factor, 0, policy, + system) // Since link use bw*sg_bandwidth_factor we should divise in order to as 1 as bound in the lmm system +{ + for (auto bandwidth : bandwidths) { + bandwidths_.push_back({bandwidth, 1.0, nullptr}); } } +void NetworkWifiLink::set_host_rate(s4u::Host* host, int rate_level) +{ + auto insert_done = host_rates_.insert(std::make_pair(host->get_name(), rate_level)); + if (insert_done.second == false) + insert_done.first->second = rate_level; +} + +double NetworkWifiLink::get_host_rate(sg_host_t host) +{ + std::map::iterator host_rates_it; + host_rates_it = host_rates_.find(host->get_name()); + + if (host_rates_it == host_rates_.end()) + return -1; + + int rate_id = host_rates_it->second; + xbt_assert(rate_id >= 0 && rate_id < (int)bandwidths_.size(), "Host \"%s\" has an invalid rate \"%d\"", + host->get_name().c_str(), rate_id); + + Metric rate = bandwidths_[rate_id]; + return rate.peak * rate.scale; +} + +s4u::Link::SharingPolicy NetworkWifiLink::get_sharing_policy() +{ + return s4u::Link::SharingPolicy::WIFI; +} + /********** * Action * **********/ -void NetworkCm02Action::updateRemainingLazy(double now) +void NetworkCm02Action::update_remains_lazy(double now) { - if (suspended_ != Action::SuspendStates::not_suspended) + if (not is_running()) return; - double delta = now - getLastUpdate(); - double max_duration = getMaxDuration(); + double delta = now - get_last_update(); - if (getRemainsNoUpdate() > 0) { - XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, getRemainsNoUpdate(), getLastUpdate()); - updateRemains(getLastValue() * delta); + if (get_remains_no_update() > 0) { + XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, get_remains_no_update(), + get_last_update()); + update_remains(get_last_value() * delta); - XBT_DEBUG("Updating action(%p): remains is now %f", this, getRemainsNoUpdate()); + XBT_DEBUG("Updating action(%p): remains is now %f", this, get_remains_no_update()); } - if (max_duration > NO_MAX_DURATION) { - double_update(&max_duration, delta, sg_surf_precision); - setMaxDuration(max_duration); - } + update_max_duration(delta); - if ((getRemainsNoUpdate() <= 0 && (getVariable()->get_weight() > 0)) || - ((max_duration > NO_MAX_DURATION) && (max_duration <= 0))) { - finish(Action::State::done); - heapRemove(getModel()->getActionHeap()); + if ((get_remains_no_update() <= 0 && (get_variable()->get_penalty() > 0)) || + ((get_max_duration() != NO_MAX_DURATION) && (get_max_duration() <= 0))) { + finish(Action::State::FINISHED); + get_model()->get_action_heap().remove(this); } - refreshLastUpdate(); - setLastValue(getVariable()->get_value()); + set_last_update(); + set_last_value(get_variable()->get_value()); } } } +} // namespace simgrid