X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/558cfc9fc06c8d1a7206b5995d3736cc11319529..eeff3b8f8915c9ed3d3eb588e3ab59ccb1df3221:/src/surf/network_interface.cpp diff --git a/src/surf/network_interface.cpp b/src/surf/network_interface.cpp index 6034eaeea1..e1f1ae6d79 100644 --- a/src/surf/network_interface.cpp +++ b/src/surf/network_interface.cpp @@ -1,274 +1,204 @@ -/* Copyright (c) 2013-2015. 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 - #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(res_network, ker_resource, "Network resources, that fuels communications"); /********* - * C API * + * Model * *********/ -extern "C" { - - const char* sg_link_name(Link *link) { - return link->getName(); - } - Link * sg_link_by_name(const char* name) { - return Link::byName(name); - } - - int sg_link_is_shared(Link *link){ - return link->sharingPolicy(); - } - double sg_link_bandwidth(Link *link){ - return link->getBandwidth(); - } - double sg_link_latency(Link *link){ - return link->getLatency(); - } - void* sg_link_data(Link *link) { - return link->getData(); - } - void sg_link_data_set(Link *link,void *data) { - link->setData(data); - } - int sg_link_count(void) { - return Link::linksCount(); - } - Link** sg_link_list(void) { - return Link::linksList(); - } - void sg_link_exit(void) { - Link::linksExit(); - } - -} - -/***************** - * List of links * - *****************/ +simgrid::kernel::resource::NetworkModel* surf_network_model = nullptr; namespace simgrid { - namespace surf { - - boost::unordered_map *Link::links = new boost::unordered_map(); - Link *Link::byName(const char* name) { - if (links->find(name) == links->end()) - return NULL; - return links->at(name); - } - /** @brief Returns the amount of links in the platform */ - int Link::linksCount() { - return links->size(); - } - /** @brief Returns a list of all existing links */ - Link **Link::linksList() { - Link **res = xbt_new(Link*, (int)links->size()); - int i=0; - for (auto kv : *links) { - res[i++] = kv.second; - } - return res; - } - /** @brief destructor of the static data */ - void Link::linksExit() { - for (auto kv : *links) - (kv.second)->destroy(); - delete links; - } - - /************* - * Callbacks * - *************/ - - simgrid::xbt::signal Link::onCreation; - simgrid::xbt::signal Link::onDestruction; - simgrid::xbt::signal Link::onStateChange; +namespace kernel { +namespace resource { + +/** @brief Command-line option 'network/TCP-gamma' -- see @ref options_model_network_gamma */ +simgrid::config::Flag NetworkModel::cfg_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; +} - simgrid::xbt::signal networkActionStateChangedCallbacks; - simgrid::xbt::signal networkCommunicateCallbacks; +double NetworkModel::get_bandwidth_factor(double /*size*/) +{ + return sg_bandwidth_factor; +} - } +double NetworkModel::get_bandwidth_constraint(double rate, double /*bound*/, double /*size*/) +{ + return rate; } -void netlink_parse_init(sg_platf_link_cbarg_t link){ - std::vector names; +double NetworkModel::next_occurring_event_full(double now) +{ + double minRes = Model::next_occurring_event_full(now); - if (link->policy == SURF_LINK_FULLDUPLEX) { - names.push_back(bprintf("%s_UP", link->id)); - names.push_back(bprintf("%s_DOWN", link->id)); - } else { - names.push_back(xbt_strdup(link->id)); + for (Action const& action : *get_started_action_set()) { + const auto& net_action = static_cast(action); + if (net_action.latency_ > 0) + minRes = (minRes < 0) ? net_action.latency_ : std::min(minRes, net_action.latency_); } - for (auto link_name : names) { - Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties); - if (link->latency_trace) - l->setLatencyTrace(link->latency_trace); - if (link->bandwidth_trace) - l->setBandwidthTrace(link->bandwidth_trace); - if (link->state_trace) - l->setStateTrace(link->state_trace); + XBT_DEBUG("Min of share resources %f", minRes); - xbt_free(link_name); - } + return minRes; } -/********* - * Model * - *********/ - -simgrid::surf::NetworkModel *surf_network_model = NULL; - -namespace simgrid { - namespace surf { - - double NetworkModel::latencyFactor(double /*size*/) { - return sg_latency_factor; - } - - double NetworkModel::bandwidthFactor(double /*size*/) { - return sg_bandwidth_factor; - } - - double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) { - return rate; - } - - double NetworkModel::next_occuring_event_full(double now) - { - NetworkAction *action = NULL; - ActionList *runningActions = surf_network_model->getRunningActionSet(); - double minRes; - - minRes = shareResourcesMaxMin(runningActions, surf_network_model->maxminSystem_, surf_network_model->f_networkSolve); +/************ + * Resource * + ************/ - for(ActionList::iterator it(runningActions->begin()), itend(runningActions->end()) - ; it != itend ; ++it) { - action = static_cast(&*it); - if (action->m_latency > 0) { - minRes = (minRes < 0) ? action->m_latency : std::min(minRes, action->m_latency); - } - } +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()); - XBT_DEBUG("Min of share resources %f", minRes); + latency_.scale = 1; + bandwidth_.scale = 1; - return minRes; - } + s4u::Engine::get_instance()->link_register(name, &piface_); + XBT_DEBUG("Create link '%s'", name.c_str()); +} - /************ - * Resource * - ************/ +/** @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 (not currently_destroying_) { + currently_destroying_ = true; + s4u::Link::on_destruction(this->piface_); + delete this; + } +} - Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props) - : Resource(model, name), - PropertyHolder(props) - { - links->insert({name, this}); +bool LinkImpl::is_used() const +{ + return get_model()->get_maxmin_system()->constraint_used(get_constraint()); +} - m_latency.scale = 1; - m_bandwidth.scale = 1; - XBT_DEBUG("Create link '%s'",name); - } +double LinkImpl::get_latency() const +{ + return latency_.peak * latency_.scale; +} - Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint) - : Resource(model, name, constraint), - PropertyHolder(props) - { - m_latency.scale = 1; - m_bandwidth.scale = 1; +double LinkImpl::get_bandwidth() const +{ + return bandwidth_.peak * bandwidth_.scale; +} - links->insert({name, this}); - XBT_DEBUG("Create link '%s'",name); +s4u::Link::SharingPolicy LinkImpl::get_sharing_policy() const +{ + return get_constraint()->get_sharing_policy(); +} - } +void LinkImpl::turn_on() +{ + if (not is_on()) { + Resource::turn_on(); + s4u::Link::on_state_change(this->piface_); + } +} - /** @brief use destroy() instead of this destructor */ - Link::~Link() { - xbt_assert(currentlyDestroying_, "Don't delete Links directly. Call destroy() instead."); - } - /** @brief Fire the require callbacks and destroy the object - * - * Don't delete directly an Link, call l->destroy() instead. - */ - void Link::destroy() - { - if (!currentlyDestroying_) { - currentlyDestroying_ = true; - onDestruction(this); - delete this; +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); } } + } +} - bool Link::isUsed() - { - return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint()); - } - - double Link::getLatency() - { - return m_latency.peak * m_latency.scale; - } - - double Link::getBandwidth() - { - return m_bandwidth.peak * m_bandwidth.scale; - } - - int Link::sharingPolicy() - { - return lmm_constraint_sharing_policy(getConstraint()); - } +void LinkImpl::on_bandwidth_change() const +{ + s4u::Link::on_bandwidth_change(this->piface_); +} - void Link::turnOn(){ - if (isOff()) { - Resource::turnOn(); - onStateChange(this); - } - } - void Link::turnOff(){ - if (isOn()) { - Resource::turnOff(); - onStateChange(this); - } - } - void Link::setStateTrace(tmgr_trace_t trace) { - xbt_assert(m_stateEvent==NULL,"Cannot set a second state trace to Link %s", getName()); - m_stateEvent = future_evt_set->add_trace(trace, 0.0, this); - } - void Link::setBandwidthTrace(tmgr_trace_t trace) - { - xbt_assert(m_bandwidth.event==NULL,"Cannot set a second bandwidth trace to Link %s", getName()); - m_bandwidth.event = future_evt_set->add_trace(trace, 0.0, this); - } - void Link::setLatencyTrace(tmgr_trace_t trace) - { - xbt_assert(m_latency.event==NULL,"Cannot set a second latency trace to Link %s", getName()); - m_latency.event = future_evt_set->add_trace(trace, 0.0, this); - } +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 * - **********/ +/********** + * Action * + **********/ - void NetworkAction::setState(e_surf_action_state_t state){ - e_surf_action_state_t old = getState(); - Action::setState(state); - networkActionStateChangedCallbacks(this, old, state); - } +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(); + auto* link = dynamic_cast(resource); + if (link != nullptr) + retlist.push_back(link); } + + return retlist; +} +} +} // namespace kernel } #endif /* NETWORK_INTERFACE_CPP_ */