X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5c64d08d30a940a53f16f70509a6821b0f94ad8e..52ce12f030da64a5c1e6eb3a644b75276c5194e7:/src/surf/network_interface.cpp diff --git a/src/surf/network_interface.cpp b/src/surf/network_interface.cpp index 17d8b673d1..c18d8d759b 100644 --- a/src/surf/network_interface.cpp +++ b/src/surf/network_interface.cpp @@ -1,221 +1,115 @@ -/* Copyright (c) 2013-2017. 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 -#include "maxmin_private.hpp" -#include "network_interface.hpp" -#include "simgrid/sg_config.h" +#include "simgrid/sg_config.hpp" +#include "src/kernel/resource/profile/Profile.hpp" +#include "src/surf/network_interface.hpp" +#include "src/surf/surf_interface.hpp" + +#include #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 fuel communications"); + +/********* + * Model * + *********/ namespace simgrid { - namespace surf { +namespace kernel { +namespace resource { + +/** @brief Command-line option 'network/TCP-gamma' -- see @ref options_model_network_gamma */ +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 */ +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::next_occurring_event_full(double now) +{ + double minRes = Model::next_occurring_event_full(now); + + 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_); + } - /* List of links */ - std::unordered_map* LinkImpl::links = new std::unordered_map(); + XBT_DEBUG("Min of share resources %f", minRes); - LinkImpl* LinkImpl::byName(std::string name) - { - auto link = links->find(name); - return link == links->end() ? nullptr : link->second; - } - /** @brief Returns the amount of links in the platform */ - int LinkImpl::linksCount() - { - return links->size(); - } - void LinkImpl::linksList(std::vector* linkList) - { - for (auto const& kv : *links) { - linkList->push_back(&kv.second->piface_); - } - } + return minRes; +} - /** @brief Returns a list of all existing links */ - LinkImpl** LinkImpl::linksList() - { - LinkImpl** res = xbt_new(LinkImpl*, (int)links->size()); - int i = 0; - for (auto const& kv : *links) { - res[i] = kv.second; - i++; - } - return res; - } - /** @brief destructor of the static data */ - void LinkImpl::linksExit() - { - for (auto const& kv : *links) - (kv.second)->destroy(); - delete links; +/********** + * Action * + **********/ + +void NetworkAction::set_state(Action::State state) +{ + Action::State previous = get_state(); + if (previous != state) { // Trigger only if the state changed + Action::set_state(state); + 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 */ + if (auto* link = dynamic_cast(get_variable()->get_constraint(i)->get_id())) + retlist.push_back(link); } + + return retlist; } -/********* - * Model * - *********/ +static void add_latency(const std::vector& links, double* latency) +{ + if (latency) + *latency = std::accumulate(begin(links), end(links), *latency, + [](double lat, const auto* link) { return lat + link->get_latency(); }); +} -simgrid::surf::NetworkModel *surf_network_model = nullptr; +void add_link_latency(std::vector& result, LinkImpl* link, double* latency) +{ + result.push_back(link); + if (latency) + *latency += link->get_latency(); +} -namespace simgrid { - namespace surf { - - NetworkModel::~NetworkModel() - { - delete maxminSystem_; - delete modifiedSet_; - } - - 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::nextOccuringEventFull(double now) - { - double minRes = Model::nextOccuringEventFull(now); - - for (Action const& action : *getRunningActionSet()) { - 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(simgrid::surf::NetworkModel* model, const std::string& name, lmm_constraint_t constraint) - : Resource(model, name, constraint), piface_(this) - { - - if (name != "__loopback__") - xbt_assert(not LinkImpl::byName(name), "Link '%s' declared several times in the platform.", name.c_str()); - - latency_.scale = 1; - bandwidth_.scale = 1; - - links->insert({name, this}); - XBT_DEBUG("Create link '%s'", name.c_str()); - } - - /** @brief use destroy() instead of this destructor */ - LinkImpl::~LinkImpl() - { - xbt_assert(currentlyDestroying_, "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 currentlyDestroying_) { - currentlyDestroying_ = true; - s4u::Link::onDestruction(this->piface_); - delete this; - } - } - - bool LinkImpl::isUsed() - { - return model()->getMaxminSystem()->constraint_used(constraint()); - } - - double LinkImpl::latency() - { - return latency_.peak * latency_.scale; - } - - double LinkImpl::bandwidth() - { - return bandwidth_.peak * bandwidth_.scale; - } - - int LinkImpl::sharingPolicy() - { - return constraint()->get_sharing_policy(); - } - - void LinkImpl::turnOn() - { - if (isOff()) { - Resource::turnOn(); - s4u::Link::onStateChange(this->piface_); - } - } - void LinkImpl::turnOff() - { - if (isOn()) { - Resource::turnOff(); - s4u::Link::onStateChange(this->piface_); - } - } - void LinkImpl::setStateTrace(tmgr_trace_t trace) - { - xbt_assert(stateEvent_ == nullptr, "Cannot set a second state trace to Link %s", getCname()); - stateEvent_ = future_evt_set->add_trace(trace, this); - } - void LinkImpl::setBandwidthTrace(tmgr_trace_t trace) - { - xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth trace to Link %s", getCname()); - bandwidth_.event = future_evt_set->add_trace(trace, this); - } - void LinkImpl::setLatencyTrace(tmgr_trace_t trace) - { - xbt_assert(latency_.event == nullptr, "Cannot set a second latency trace to Link %s", getCname()); - latency_.event = future_evt_set->add_trace(trace, this); - } - - - /********** - * Action * - **********/ - - void NetworkAction::setState(Action::State state) - { - Action::setState(state); - s4u::Link::onCommunicationStateChange(this); - } - - /** @brief returns a list of all Links that this action is using */ - std::list NetworkAction::links() - { - std::list retlist; - int llen = getVariable()->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 = static_cast(getVariable()->get_constraint(i)->get_id()); - LinkImpl* link = dynamic_cast(resource); - if (link != nullptr) - retlist.push_back(link); - } - - return retlist; - } - } +void add_link_latency(std::vector& result, const std::vector& links, double* latency) +{ + result.insert(result.end(), begin(links), end(links)); + add_latency(links, latency); } +void insert_link_latency(std::vector& result, const std::vector& links, double* latency) +{ + result.insert(result.begin(), rbegin(links), rend(links)); + add_latency(links, latency); +} + +} // namespace resource +} // namespace kernel +} // namespace simgrid + #endif /* NETWORK_INTERFACE_CPP_ */