X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ad2e588c6af6cf84b18ba7c1c96f4f9785d93c28..7f90173083cea6c05e9a2418bc11c47750d006d8:/src/surf/network_interface.cpp diff --git a/src/surf/network_interface.cpp b/src/surf/network_interface.cpp index bb53714d07..764c414c75 100644 --- a/src/surf/network_interface.cpp +++ b/src/surf/network_interface.cpp @@ -1,73 +1,204 @@ -/* - * network_interface.cpp - * - * Created on: Nov 29, 2013 - * Author: bedaride - */ +/* Copyright (c) 2013-2020. 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 "network_interface.hpp" -#include "simgrid/sg_config.h" +#include "simgrid/s4u/Engine.hpp" +#include "simgrid/sg_config.hpp" +#include "src/kernel/resource/profile/Profile.hpp" +#include "src/surf/surf_interface.hpp" +#include "surf/surf.hpp" #ifndef NETWORK_INTERFACE_CPP_ #define NETWORK_INTERFACE_CPP_ -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf, - "Logging specific to the SURF network module"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf, "Logging specific to the SURF network module"); -NetworkModelPtr surf_network_model = NULL; +/********* + * Model * + *********/ -xbt_dynar_t NetworkModel::getRoute(RoutingEdgePtr src, RoutingEdgePtr dst) -{ - xbt_dynar_t route = NULL; - routing_platf->getRouteAndLatency(src, dst, &route, NULL); - return route; -} +simgrid::kernel::resource::NetworkModel* surf_network_model = nullptr; + +namespace simgrid { +namespace kernel { +namespace resource { -double NetworkModel::latencyFactor(double /*size*/) { +/** @brief Command-line option 'network/TCP-gamma' -- see @ref options_model_network_gamma */ +simgrid::config::Flag NetworkModel::cfg_tcp_gamma( + "network/TCP-gamma", {"network/TCP_gamma"}, + "Size of the biggest TCP window (cat /proc/sys/net/ipv4/tcp_[rw]mem for recv/send window; " + "Use the last given value, which is the max window size)", + 4194304.0); + +/** @brief Command-line option 'network/crosstraffic' -- see @ref options_model_network_crosstraffic */ +simgrid::config::Flag NetworkModel::cfg_crosstraffic( + "network/crosstraffic", + "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)", "yes"); + +NetworkModel::~NetworkModel() = default; + +double NetworkModel::get_latency_factor(double /*size*/) +{ return sg_latency_factor; } -double NetworkModel::bandwidthFactor(double /*size*/) { +double NetworkModel::get_bandwidth_factor(double /*size*/) +{ return sg_bandwidth_factor; } -double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) { +double NetworkModel::get_bandwidth_constraint(double rate, double /*bound*/, double /*size*/) +{ return rate; } -NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props) -: Resource(model, name, props) -, p_latEvent(NULL) -{} +double NetworkModel::next_occurring_event_full(double now) +{ + double minRes = Model::next_occurring_event_full(now); + + for (Action const& action : *get_started_action_set()) { + const NetworkAction& net_action = static_cast(action); + if (net_action.latency_ > 0) + minRes = (minRes < 0) ? net_action.latency_ : std::min(minRes, net_action.latency_); + } + + XBT_DEBUG("Min of share resources %f", minRes); + + return minRes; +} + +/************ + * Resource * + ************/ + +LinkImpl::LinkImpl(NetworkModel* model, const std::string& name, lmm::Constraint* constraint) + : Resource(model, name, constraint), piface_(this) +{ + if (name != "__loopback__") + xbt_assert(not s4u::Link::by_name_or_null(name), "Link '%s' declared several times in the platform.", name.c_str()); + + latency_.scale = 1; + bandwidth_.scale = 1; + + s4u::Engine::get_instance()->link_register(name, &piface_); + XBT_DEBUG("Create link '%s'", name.c_str()); +} -NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props, - lmm_constraint_t constraint, - tmgr_history_t history, - tmgr_trace_t state_trace) -: Resource(model, name, props, constraint), - p_latEvent(NULL) +/** @brief use destroy() instead of this destructor */ +LinkImpl::~LinkImpl() +{ + xbt_assert(currently_destroying_, "Don't delete Links directly. Call destroy() instead."); +} +/** @brief Fire the required callbacks and destroy the object + * + * Don't delete directly a Link, call l->destroy() instead. + */ +void LinkImpl::destroy() { - if (state_trace) - p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, static_cast(this)); + if (not currently_destroying_) { + currently_destroying_ = true; + s4u::Link::on_destruction(this->piface_); + delete this; + } } -bool NetworkLink::isUsed() +bool LinkImpl::is_used() { - return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint()); + return get_model()->get_maxmin_system()->constraint_used(get_constraint()); } -double NetworkLink::getLatency() +double LinkImpl::get_latency() { - return m_latCurrent; + return latency_.peak * latency_.scale; } -double NetworkLink::getBandwidth() +double LinkImpl::get_bandwidth() { - return p_power.peak * p_power.scale; + return bandwidth_.peak * bandwidth_.scale; } -bool NetworkLink::isShared() +s4u::Link::SharingPolicy LinkImpl::get_sharing_policy() { - return lmm_constraint_is_shared(getConstraint()); + return get_constraint()->get_sharing_policy(); +} + +void LinkImpl::turn_on() +{ + if (not is_on()) { + Resource::turn_on(); + s4u::Link::on_state_change(this->piface_); + } +} + +void LinkImpl::turn_off() +{ + if (is_on()) { + Resource::turn_off(); + s4u::Link::on_state_change(this->piface_); + + const kernel::lmm::Variable* var; + const kernel::lmm::Element* elem = nullptr; + double now = surf_get_clock(); + while ((var = get_constraint()->get_variable(&elem))) { + Action* action = var->get_id(); + if (action->get_state() == Action::State::INITED || action->get_state() == Action::State::STARTED) { + action->set_finish_time(now); + action->set_state(Action::State::FAILED); + } + } + } +} + +void LinkImpl::on_bandwidth_change() const +{ + s4u::Link::on_bandwidth_change(this->piface_); +} + +void LinkImpl::set_bandwidth_profile(profile::Profile* profile) +{ + xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth profile to Link %s", get_cname()); + bandwidth_.event = profile->schedule(&profile::future_evt_set, this); +} + +void LinkImpl::set_latency_profile(profile::Profile* profile) +{ + xbt_assert(latency_.event == nullptr, "Cannot set a second latency profile to Link %s", get_cname()); + latency_.event = profile->schedule(&profile::future_evt_set, this); +} + +/********** + * Action * + **********/ + +void NetworkAction::set_state(Action::State state) +{ + Action::State previous = get_state(); + Action::set_state(state); + if (previous != state) // Trigger only if the state changed + s4u::Link::on_communication_state_change(*this, previous); +} + +/** @brief returns a list of all Links that this action is using */ +std::list NetworkAction::get_links() const +{ + std::list retlist; + int llen = get_variable()->get_number_of_constraint(); + + for (int i = 0; i < llen; i++) { + /* Beware of composite actions: ptasks put links and cpus together */ + // extra pb: we cannot dynamic_cast from void*... + Resource* resource = get_variable()->get_constraint(i)->get_id(); + LinkImpl* link = dynamic_cast(resource); + if (link != nullptr) + retlist.push_back(link); + } + + return retlist; +} +} +} // namespace kernel } #endif /* NETWORK_INTERFACE_CPP_ */