-/* 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 <algorithm>
+#include <simgrid/s4u/Engine.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 <numeric>
#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");
/*********
- * 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);
+namespace simgrid {
+namespace kernel {
+namespace resource {
+
+/** @brief Command-line option 'network/TCP-gamma' -- see @ref options_model_network_gamma */
+config::Flag<double> 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<bool> 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<const NetworkAction&>(action);
+ if (net_action.latency_ > 0)
+ minRes = (minRes < 0) ? net_action.latency_ : std::min(minRes, net_action.latency_);
}
- 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() {
- return Link::linksCount();
- }
- Link** sg_link_list() {
- return Link::linksList();
- }
- void sg_link_exit() {
- Link::linksExit();
- }
+ XBT_DEBUG("Min of share resources %f", minRes);
+ return minRes;
}
-/*****************
- * List of links *
- *****************/
-
-namespace simgrid {
- namespace surf {
-
- boost::unordered_map<std::string,Link *> *Link::links = new boost::unordered_map<std::string,Link *>();
- Link *Link::byName(const char* name) {
- if (links->find(name) == links->end())
- return nullptr;
- 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<void(Link*)> Link::onCreation;
- simgrid::xbt::signal<void(Link*)> Link::onDestruction;
- simgrid::xbt::signal<void(Link*)> Link::onStateChange;
-
- simgrid::xbt::signal<void(NetworkAction*, Action::State, Action::State)> networkActionStateChangedCallbacks;
- simgrid::xbt::signal<void(NetworkAction*, kernel::routing::NetCard *src, kernel::routing::NetCard *dst)> Link::onCommunicate;
+/**********
+ * 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);
}
}
-/*********
- * Model *
- *********/
-
-simgrid::surf::NetworkModel *surf_network_model = nullptr;
-
-namespace simgrid {
- namespace surf {
-
- NetworkModel::~NetworkModel()
- {
- lmm_system_free(maxminSystem_);
- xbt_heap_free(actionHeap_);
- delete modifiedSet_;
- }
+/** @brief returns a list of all Links that this action is using */
+std::list<LinkImpl*> NetworkAction::get_links() const
+{
+ std::list<LinkImpl*> retlist;
+ int llen = get_variable()->get_number_of_constraint();
- 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 = nullptr;
- ActionList *runningActions = surf_network_model->getRunningActionSet();
- double minRes;
-
- minRes = shareResourcesMaxMin(runningActions, surf_network_model->maxminSystem_, surf_network_model->f_networkSolve);
-
- for(ActionList::iterator it(runningActions->begin()), itend(runningActions->end())
- ; it != itend ; ++it) {
- action = static_cast<NetworkAction*>(&*it);
- if (action->latency_ > 0) {
- minRes = (minRes < 0) ? action->latency_ : std::min(minRes, action->latency_);
- }
- }
-
- XBT_DEBUG("Min of share resources %f", minRes);
-
- return minRes;
- }
-
- /************
- * Resource *
- ************/
-
- Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props)
- : Resource(model, name),
- PropertyHolder(props)
- {
- links->insert({name, this});
-
- m_latency.scale = 1;
- m_bandwidth.scale = 1;
- XBT_DEBUG("Create link '%s'",name);
- }
-
- Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint)
- : Resource(model, name, constraint),
- PropertyHolder(props)
- {
- if (strcmp(name,"__loopback__"))
- xbt_assert(!Link::byName(name), "Link '%s' declared several times in the platform.", name);
-
- m_latency.scale = 1;
- m_bandwidth.scale = 1;
-
- links->insert({name, this});
- XBT_DEBUG("Create link '%s'",name);
-
- }
-
- /** @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;
- }
- }
-
- 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());
- }
+ for (int i = 0; i < llen; i++) {
+ /* Beware of composite actions: ptasks put links and cpus together */
+ if (auto* link = dynamic_cast<LinkImpl*>(get_variable()->get_constraint(i)->get_id()))
+ retlist.push_back(link);
+ }
- 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==nullptr,"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==nullptr,"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==nullptr,"Cannot set a second latency trace to Link %s", getName());
- m_latency.event = future_evt_set->add_trace(trace, 0.0, this);
- }
+ return retlist;
+}
+static void add_latency(const std::vector<LinkImpl*>& links, double* latency)
+{
+ if (latency)
+ *latency = std::accumulate(begin(links), end(links), *latency,
+ [](double lat, const auto* link) { return lat + link->get_latency(); });
+}
- /**********
- * Action *
- **********/
+void add_link_latency(std::vector<LinkImpl*>& result, LinkImpl* link, double* latency)
+{
+ result.push_back(link);
+ if (latency)
+ *latency += link->get_latency();
+}
- void NetworkAction::setState(Action::State state){
- Action::State old = getState();
- Action::setState(state);
- networkActionStateChangedCallbacks(this, old, state);
- }
+void add_link_latency(std::vector<LinkImpl*>& result, const std::vector<LinkImpl*>& links, double* latency)
+{
+ result.insert(result.end(), begin(links), end(links));
+ add_latency(links, latency);
+}
- }
+void insert_link_latency(std::vector<LinkImpl*>& result, const std::vector<LinkImpl*>& 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_ */