X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1b89437671ba572a199dd4ff5766ba82720cdf03..10f12acec06b772d960500524bbbaf2d5d48c08b:/src/surf/network_cm02.cpp diff --git a/src/surf/network_cm02.cpp b/src/surf/network_cm02.cpp index f6b424c038..a392cd363a 100644 --- a/src/surf/network_cm02.cpp +++ b/src/surf/network_cm02.cpp @@ -1,11 +1,14 @@ -/* Copyright (c) 2013-2020. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2013-2021. 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 "src/surf/network_cm02.hpp" +#include "simgrid/kernel/routing/NetZoneImpl.hpp" +#include "simgrid/s4u/Engine.hpp" #include "simgrid/s4u/Host.hpp" #include "simgrid/sg_config.hpp" +#include "src/kernel/EngineImpl.hpp" #include "src/kernel/resource/profile/Event.hpp" #include "src/surf/network_wifi.hpp" #include "src/surf/surf_interface.hpp" @@ -14,11 +17,11 @@ #include #include -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network); +XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_network); -double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */ -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_latency_factor = 1.0; /* default value; can be set by model or from command line */ +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 */ /************************************************************************/ /* New model based on optimizations discussed during Pedro Velho's thesis*/ @@ -36,9 +39,10 @@ double sg_weight_S_parameter = 0.0; /* default value; can be set by model or /* } */ void surf_network_model_init_LegrandVelho() { - xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice"); - - surf_network_model = new simgrid::kernel::resource::NetworkCm02Model(); + auto net_model = std::make_shared(); + simgrid::kernel::EngineImpl::get_instance()->add_model(simgrid::kernel::resource::Model::Type::NETWORK, net_model, + true); + simgrid::s4u::Engine::get_instance()->get_netzone_root()->get_impl()->set_network_model(net_model); simgrid::config::set_default("network/latency-factor", 13.01); simgrid::config::set_default("network/bandwidth-factor", 0.97); @@ -58,49 +62,54 @@ void surf_network_model_init_LegrandVelho() /* } */ void surf_network_model_init_CM02() { - xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice"); - 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::kernel::resource::NetworkCm02Model(); + auto net_model = std::make_shared(); + simgrid::kernel::EngineImpl::get_instance()->add_model(simgrid::kernel::resource::Model::Type::NETWORK, net_model, + true); + simgrid::s4u::Engine::get_instance()->get_netzone_root()->get_impl()->set_network_model(net_model); } namespace simgrid { namespace kernel { namespace resource { -NetworkCm02Model::NetworkCm02Model(kernel::lmm::System* (*make_new_lmm_system)(bool)) - : NetworkModel(simgrid::config::get_value("network/optim") == "Full" ? Model::UpdateAlgo::FULL - : Model::UpdateAlgo::LAZY) +NetworkCm02Model::NetworkCm02Model() + : NetworkModel(config::get_value("network/optim") == "Full" ? Model::UpdateAlgo::FULL + : Model::UpdateAlgo::LAZY) { - all_existing_models.push_back(this); - - std::string optim = simgrid::config::get_value("network/optim"); - bool select = simgrid::config::get_value("network/maxmin-selective-update"); + std::string optim = config::get_value("network/optim"); + bool select = config::get_value("network/maxmin-selective-update"); if (optim == "Lazy") { - xbt_assert(select || simgrid::config::is_default("network/maxmin-selective-update"), + xbt_assert(select || config::is_default("network/maxmin-selective-update"), "You cannot disable network selective update when using the lazy update mechanism"); select = true; } - set_maxmin_system(make_new_lmm_system(select)); - loopback_ = NetworkCm02Model::create_link("__loopback__", - std::vector{simgrid::config::get_value("network/loopback-bw")}, - simgrid::config::get_value("network/loopback-lat"), - s4u::Link::SharingPolicy::FATPIPE); + set_maxmin_system(new lmm::System(select)); + loopback_ = NetworkCm02Model::create_link("__loopback__", + std::vector{config::get_value("network/loopback-bw")}, + s4u::Link::SharingPolicy::FATPIPE) + ->set_latency(config::get_value("network/loopback-lat")); + loopback_->seal(); } -LinkImpl* NetworkCm02Model::create_link(const std::string& name, const std::vector& bandwidths, double latency, +LinkImpl* NetworkCm02Model::create_link(const std::string& name, const std::vector& bandwidths, s4u::Link::SharingPolicy policy) { - if (policy == s4u::Link::SharingPolicy::WIFI) - return new NetworkWifiLink(this, name, bandwidths, get_maxmin_system()); + LinkImpl* link; + if (policy == s4u::Link::SharingPolicy::WIFI) { + link = new NetworkWifiLink(name, bandwidths, get_maxmin_system()); + } else { + xbt_assert(bandwidths.size() == 1, "Non-WIFI links must use only 1 bandwidth."); + link = new NetworkCm02Link(name, bandwidths[0], 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()); + link->set_model(this); + return link; } void NetworkCm02Model::update_actions_state_lazy(double now, double /*delta*/) @@ -188,29 +197,36 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz NetworkWifiLink* src_wifi_link = nullptr; NetworkWifiLink* dst_wifi_link = nullptr; - if (not route.empty() && route.at(0)->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) { - src_wifi_link = static_cast(route.at(0)); + if (not route.empty() && route.front()->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) { + src_wifi_link = static_cast(route.front()); xbt_assert(src_wifi_link->get_host_rate(src) != -1, "The route from %s to %s begins with the WIFI link %s, but the host %s does not seem attached to that " "WIFI link. Did you call link->set_host_rate()?", src->get_cname(), dst->get_cname(), src_wifi_link->get_cname(), src->get_cname()); } - if (route.size() > 1 && route.at(route.size() - 1)->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) { - dst_wifi_link = static_cast(route.at(route.size() - 1)); + if (route.size() > 1 && route.back()->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) { + dst_wifi_link = static_cast(route.back()); xbt_assert(dst_wifi_link->get_host_rate(dst) != -1, "The route from %s to %s ends with the WIFI link %s, but the host %s does not seem attached to that " "WIFI link. Did you call link->set_host_rate()?", src->get_cname(), dst->get_cname(), dst_wifi_link->get_cname(), dst->get_cname()); } + if (route.size() > 2) + for (unsigned i = 1; i < route.size() - 1; i++) + xbt_assert(route[i]->get_sharing_policy() != s4u::Link::SharingPolicy::WIFI, + "Link '%s' is a WIFI link. It can only be at the beginning or the end of the route from '%s' to '%s', " + "not in between (it is at position %u out of %zu). " + "Did you declare an access_point in your WIFI zones?", + route[i]->get_cname(), src->get_cname(), dst->get_cname(), i + 1, route.size()); NetworkCm02Action* action; if (src_wifi_link == nullptr && dst_wifi_link == nullptr) action = new NetworkCm02Action(this, *src, *dst, size, failed); else action = new NetworkWifiAction(this, *src, *dst, size, failed, src_wifi_link, dst_wifi_link); - action->sharing_penalty_ = latency; - action->latency_ = latency; - action->rate_ = rate; + action->sharing_penalty_ = latency; + action->latency_ = latency; + action->set_user_bound(rate); if (is_update_lazy()) { action->set_last_update(); @@ -230,7 +246,7 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz action->lat_current_ = action->latency_; action->latency_ *= get_latency_factor(size); - action->rate_ = get_bandwidth_constraint(action->rate_, bandwidth_bound, size); + action->set_user_bound(get_bandwidth_constraint(action->get_user_bound(), bandwidth_bound, size)); size_t constraints_per_variable = route.size(); constraints_per_variable += back_route.size(); @@ -249,14 +265,14 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz } else action->set_variable(get_maxmin_system()->variable_new(action, 1.0, -1.0, constraints_per_variable)); - if (action->rate_ < 0) { + if (action->get_user_bound() < 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 { 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_); + ? std::min(action->get_user_bound(), cfg_tcp_gamma / (2.0 * action->lat_current_)) + : action->get_user_bound()); } if (src_wifi_link != nullptr) @@ -266,7 +282,7 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz get_maxmin_system()->expand(dst_wifi_link->get_constraint(), action->get_variable(), 1.0 / dst_wifi_link->get_host_rate(dst)); - for (auto const& link : route) { + for (auto const* link : route) { // WIFI links are handled manually just above, so skip them now if (link->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) { xbt_assert(link == src_wifi_link || link == dst_wifi_link, @@ -285,7 +301,7 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz if (src_wifi_link != nullptr) get_maxmin_system()->expand(src_wifi_link->get_constraint(), action->get_variable(), .05 / src_wifi_link->get_host_rate(src)); - for (auto const& link : back_route) + for (auto const* link : back_route) if (link->get_sharing_policy() != s4u::Link::SharingPolicy::WIFI) 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 @@ -301,20 +317,16 @@ Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double siz /************ * Resource * ************/ -NetworkCm02Link::NetworkCm02Link(NetworkCm02Model* model, const std::string& name, double bandwidth, double latency, - s4u::Link::SharingPolicy policy, kernel::lmm::System* system) - : LinkImpl(model, name, system->constraint_new(this, sg_bandwidth_factor * bandwidth)) +NetworkCm02Link::NetworkCm02Link(const std::string& name, double bandwidth, s4u::Link::SharingPolicy policy, + kernel::lmm::System* system) + : LinkImpl(name) { bandwidth_.scale = 1.0; bandwidth_.peak = bandwidth; - - latency_.scale = 1.0; - latency_.peak = latency; + this->set_constraint(system->constraint_new(this, sg_bandwidth_factor * bandwidth)); if (policy == s4u::Link::SharingPolicy::FATPIPE) get_constraint()->unshare(); - - simgrid::s4u::Link::on_creation(*get_iface()); } void NetworkCm02Link::apply_event(kernel::profile::Event* triggered, double value) @@ -357,7 +369,7 @@ void NetworkCm02Link::set_bandwidth(double value) const kernel::lmm::Variable* var; const kernel::lmm::Element* elem = nullptr; const kernel::lmm::Element* nextelem = nullptr; - int numelem = 0; + int numelem = 0; while ((var = get_constraint()->get_variable_safe(&elem, &nextelem, &numelem))) { auto* action = static_cast(var->get_id()); action->sharing_penalty_ += delta; @@ -367,28 +379,32 @@ void NetworkCm02Link::set_bandwidth(double value) } } -void NetworkCm02Link::set_latency(double value) +LinkImpl* NetworkCm02Link::set_latency(double value) { - double delta = value - latency_.peak; + latency_check(value); + + double delta = value - latency_.peak; const kernel::lmm::Variable* var; const kernel::lmm::Element* elem = nullptr; const kernel::lmm::Element* nextelem = nullptr; - int numelem = 0; + int numelem = 0; - latency_.peak = value; + latency_.scale = 1.0; + latency_.peak = value; while ((var = get_constraint()->get_variable_safe(&elem, &nextelem, &numelem))) { auto* action = static_cast(var->get_id()); action->lat_current_ += delta; action->sharing_penalty_ += delta; - if (action->rate_ < 0) + if (action->get_user_bound() < 0) get_model()->get_maxmin_system()->update_variable_bound(action->get_variable(), NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_)); else { get_model()->get_maxmin_system()->update_variable_bound( - action->get_variable(), std::min(action->rate_, NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_))); + action->get_variable(), + std::min(action->get_user_bound(), NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_))); - if (action->rate_ < NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_)) { + if (action->get_user_bound() < 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->lat_current_); @@ -397,6 +413,7 @@ void NetworkCm02Link::set_latency(double value) if (not action->is_suspended()) get_model()->get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_); } + return this; } /**********