-/* Copyright (c) 2013-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2013-2019. 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 "network_cm02.hpp"
#include "simgrid/s4u/Host.hpp"
-#include "simgrid/sg_config.h"
-#include "src/instr/instr_private.hpp" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
-#include "src/kernel/lmm/maxmin.hpp"
+#include "simgrid/sg_config.hpp"
+#include "src/kernel/resource/profile/Event.hpp"
+#include "src/surf/surf_interface.hpp"
+#include "surf/surf.hpp"
+
+#include <algorithm>
+#include <numeric>
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
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_tcp_gamma = 0.0;
-int sg_network_crosstraffic = 0;
-
/************************************************************************/
/* New model based on optimizations discussed during Pedro Velho's thesis*/
/************************************************************************/
/* } */
void surf_network_model_init_LegrandVelho()
{
- if (surf_network_model)
- return;
+ xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
- surf_network_model = new simgrid::surf::NetworkCm02Model();
- all_existing_models->push_back(surf_network_model);
+ surf_network_model = new simgrid::kernel::resource::NetworkCm02Model();
- xbt_cfg_setdefault_double("network/latency-factor", 13.01);
- xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97);
- xbt_cfg_setdefault_double("network/weight-S", 20537);
+ simgrid::config::set_default<double>("network/latency-factor", 13.01);
+ simgrid::config::set_default<double>("network/bandwidth-factor", 0.97);
+ simgrid::config::set_default<double>("network/weight-S", 20537);
}
/***************************************************************************/
/* } */
void surf_network_model_init_CM02()
{
+ xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
- if (surf_network_model)
- return;
-
- xbt_cfg_setdefault_double("network/latency-factor", 1.0);
- xbt_cfg_setdefault_double("network/bandwidth-factor", 1.0);
- xbt_cfg_setdefault_double("network/weight-S", 0.0);
-
- surf_network_model = new simgrid::surf::NetworkCm02Model();
- all_existing_models->push_back(surf_network_model);
-}
-
-/***************************************************************************/
-/* The models from Steven H. Low */
-/***************************************************************************/
-/* @article{Low03, */
-/* author={Steven H. Low}, */
-/* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
-/* year={2003}, */
-/* journal={{IEEE/ACM} Transactions on Networking}, */
-/* volume={11}, number={4}, */
-/* } */
-void surf_network_model_init_Reno()
-{
- if (surf_network_model)
- return;
-
- set_default_protocol_function(simgrid::kernel::lmm::func_reno_f, simgrid::kernel::lmm::func_reno_fp,
- simgrid::kernel::lmm::func_reno_fpi);
-
- xbt_cfg_setdefault_double("network/latency-factor", 13.01);
- xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97);
- xbt_cfg_setdefault_double("network/weight-S", 20537);
-
- surf_network_model = new simgrid::surf::NetworkCm02Model(&simgrid::kernel::lmm::lagrange_solve);
- all_existing_models->push_back(surf_network_model);
-}
-
-
-void surf_network_model_init_Reno2()
-{
- if (surf_network_model)
- return;
-
- set_default_protocol_function(simgrid::kernel::lmm::func_reno2_f, simgrid::kernel::lmm::func_reno2_fp,
- simgrid::kernel::lmm::func_reno2_fpi);
-
- xbt_cfg_setdefault_double("network/latency-factor", 13.01);
- xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97);
- xbt_cfg_setdefault_double("network/weight-S", 20537);
-
- surf_network_model = new simgrid::surf::NetworkCm02Model(&simgrid::kernel::lmm::lagrange_solve);
- all_existing_models->push_back(surf_network_model);
-}
-
-void surf_network_model_init_Vegas()
-{
- if (surf_network_model)
- return;
-
- set_default_protocol_function(simgrid::kernel::lmm::func_vegas_f, simgrid::kernel::lmm::func_vegas_fp,
- simgrid::kernel::lmm::func_vegas_fpi);
-
- xbt_cfg_setdefault_double("network/latency-factor", 13.01);
- xbt_cfg_setdefault_double("network/bandwidth-factor", 0.97);
- xbt_cfg_setdefault_double("network/weight-S", 20537);
+ simgrid::config::set_default<double>("network/latency-factor", 1.0);
+ simgrid::config::set_default<double>("network/bandwidth-factor", 1.0);
+ simgrid::config::set_default<double>("network/weight-S", 0.0);
- surf_network_model = new simgrid::surf::NetworkCm02Model(&simgrid::kernel::lmm::lagrange_solve);
- all_existing_models->push_back(surf_network_model);
+ surf_network_model = new simgrid::kernel::resource::NetworkCm02Model();
}
namespace simgrid {
-namespace surf {
+namespace kernel {
+namespace resource {
-NetworkCm02Model::NetworkCm02Model()
- :NetworkModel()
+NetworkCm02Model::NetworkCm02Model(kernel::lmm::System* (*make_new_lmm_system)(bool))
+ : NetworkModel(simgrid::config::get_value<std::string>("network/optim") == "Full" ? Model::UpdateAlgo::FULL
+ : Model::UpdateAlgo::LAZY)
{
- std::string optim = xbt_cfg_get_string("network/optim");
- bool select = xbt_cfg_get_boolean("network/maxmin-selective-update");
-
- if (optim == "Full") {
- setUpdateMechanism(UM_FULL);
- selectiveUpdate_ = select;
- } else if (optim == "Lazy") {
- setUpdateMechanism(UM_LAZY);
- selectiveUpdate_ = true;
- xbt_assert(select || (xbt_cfg_is_default_value("network/maxmin-selective-update")),
- "You cannot disable selective update when using the lazy update mechanism");
- } else {
- xbt_die("Unsupported optimization (%s) for this model. Accepted: Full, Lazy.", optim.c_str());
- }
+ all_existing_models.push_back(this);
- maxminSystem_ = new simgrid::kernel::lmm::System(selectiveUpdate_);
- loopback_ = NetworkCm02Model::createLink("__loopback__", 498000000, 0.000015, SURF_LINK_FATPIPE);
+ std::string optim = simgrid::config::get_value<std::string>("network/optim");
+ bool select = simgrid::config::get_value<bool>("network/maxmin-selective-update");
- if (getUpdateMechanism() == UM_LAZY) {
- modifiedSet_ = new ActionLmmList();
- maxminSystem_->keep_track = modifiedSet_;
+ if (optim == "Lazy") {
+ xbt_assert(select || simgrid::config::is_default("network/maxmin-selective-update"),
+ "You cannot disable network selective update when using the lazy update mechanism");
+ select = true;
}
-}
-NetworkCm02Model::NetworkCm02Model(void (*specificSolveFun)(lmm_system_t self)) : NetworkCm02Model()
-{
- maxminSystem_->solve_fun = specificSolveFun;
+ set_maxmin_system(make_new_lmm_system(select));
+ loopback_ = NetworkCm02Model::create_link("__loopback__", std::vector<double>(1, 498000000), 0.000015,
+ s4u::Link::SharingPolicy::FATPIPE);
}
-LinkImpl* NetworkCm02Model::createLink(const std::string& name, double bandwidth, double latency,
- e_surf_link_sharing_policy_t policy)
+LinkImpl* NetworkCm02Model::create_link(const std::string& name, const std::vector<double>& bandwidths, double latency,
+ s4u::Link::SharingPolicy policy)
{
- return new NetworkCm02Link(this, name, bandwidth, latency, policy, maxminSystem_);
+ if (policy == s4u::Link::SharingPolicy::WIFI) {
+ return (new NetworkWifiLink(this, name, bandwidths, 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());
}
-void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/)
+void NetworkCm02Model::update_actions_state_lazy(double now, double /*delta*/)
{
- while (not actionHeapIsEmpty() && double_equals(actionHeapTopDate(), now, sg_surf_precision)) {
+ while (not get_action_heap().empty() && double_equals(get_action_heap().top_date(), now, sg_surf_precision)) {
- NetworkCm02Action* action = static_cast<NetworkCm02Action*>(actionHeapPop());
+ NetworkCm02Action* action = static_cast<NetworkCm02Action*>(get_action_heap().pop());
XBT_DEBUG("Something happened to action %p", action);
- if (TRACE_is_enabled()) {
- int n = action->getVariable()->get_number_of_constraint();
-
- for (int i = 0; i < n; i++){
- kernel::lmm::Constraint* constraint = action->getVariable()->get_constraint(i);
- NetworkCm02Link* link = static_cast<NetworkCm02Link*>(constraint->get_id());
- double value = action->getVariable()->get_value() * action->getVariable()->get_constraint_weight(i);
- TRACE_surf_link_set_utilization(link->getCname(), action->getCategory(), value, action->getLastUpdate(),
- now - action->getLastUpdate());
- }
- }
// if I am wearing a latency hat
- if (action->getHat() == Action::Type::LATENCY) {
+ if (action->get_type() == ActionHeap::Type::latency) {
XBT_DEBUG("Latency paid for action %p. Activating", action);
- maxminSystem_->update_variable_weight(action->getVariable(), action->weight_);
- action->heapRemove(getActionHeap());
- action->refreshLastUpdate();
+ get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_);
+ get_action_heap().remove(action);
+ action->set_last_update();
- // if I am wearing a max_duration or normal hat
- } else if (action->getHat() == Action::Type::MAX_DURATION || action->getHat() == Action::Type::NORMAL) {
+ // if I am wearing a max_duration or normal hat
+ } else if (action->get_type() == ActionHeap::Type::max_duration || action->get_type() == ActionHeap::Type::normal) {
// no need to communicate anymore
// assume that flows that reached max_duration have remaining of 0
XBT_DEBUG("Action %p finished", action);
- action->setRemains(0);
- action->finish(Action::State::done);
- action->heapRemove(getActionHeap());
+ action->finish(Action::State::FINISHED);
+ get_action_heap().remove(action);
}
}
}
-
-void NetworkCm02Model::updateActionsStateFull(double now, double delta)
+void NetworkCm02Model::update_actions_state_full(double /*now*/, double delta)
{
- for (auto it = std::begin(*getRunningActionSet()); it != std::end(*getRunningActionSet());) {
+ for (auto it = std::begin(*get_started_action_set()); it != std::end(*get_started_action_set());) {
NetworkCm02Action& action = static_cast<NetworkCm02Action&>(*it);
++it; // increment iterator here since the following calls to action.finish() may invalidate it
XBT_DEBUG("Something happened to action %p", &action);
double_update(&deltap, action.latency_, sg_surf_precision);
action.latency_ = 0.0;
}
- if (action.latency_ <= 0.0 && not action.isSuspended())
- maxminSystem_->update_variable_weight(action.getVariable(), action.weight_);
+ if (action.latency_ <= 0.0 && not action.is_suspended())
+ get_maxmin_system()->update_variable_penalty(action.get_variable(), action.sharing_penalty_);
}
- if (TRACE_is_enabled()) {
- int n = action.getVariable()->get_number_of_constraint();
- for (int i = 0; i < n; i++) {
- kernel::lmm::Constraint* constraint = action.getVariable()->get_constraint(i);
- NetworkCm02Link* link = static_cast<NetworkCm02Link*>(constraint->get_id());
- TRACE_surf_link_set_utilization(
- link->getCname(), action.getCategory(),
- (action.getVariable()->get_value() * action.getVariable()->get_constraint_weight(i)),
- action.getLastUpdate(), now - action.getLastUpdate());
- }
- }
- if (not action.getVariable()->get_number_of_constraint()) {
+
+ if (not action.get_variable()->get_number_of_constraint()) {
/* There is actually no link used, hence an infinite bandwidth. This happens often when using models like
* vivaldi. In such case, just make sure that the action completes immediately.
*/
- action.updateRemains(action.getRemains());
+ action.update_remains(action.get_remains());
}
- action.updateRemains(action.getVariable()->get_value() * delta);
+ action.update_remains(action.get_variable()->get_value() * delta);
- if (action.getMaxDuration() > NO_MAX_DURATION)
- action.updateMaxDuration(delta);
+ if (action.get_max_duration() != NO_MAX_DURATION)
+ action.update_max_duration(delta);
- if (((action.getRemains() <= 0) && (action.getVariable()->get_weight() > 0)) ||
- ((action.getMaxDuration() > NO_MAX_DURATION) && (action.getMaxDuration() <= 0))) {
- action.finish(Action::State::done);
+ if (((action.get_remains() <= 0) && (action.get_variable()->get_penalty() > 0)) ||
+ ((action.get_max_duration() != NO_MAX_DURATION) && (action.get_max_duration() <= 0))) {
+ action.finish(Action::State::FINISHED);
}
}
}
Action* NetworkCm02Model::communicate(s4u::Host* src, s4u::Host* dst, double size, double rate)
{
- int failed = 0;
double latency = 0.0;
std::vector<LinkImpl*> back_route;
std::vector<LinkImpl*> route;
- XBT_IN("(%s,%s,%g,%g)", src->getCname(), dst->getCname(), size, rate);
+ XBT_IN("(%s,%s,%g,%g)", src->get_cname(), dst->get_cname(), size, rate);
- src->routeTo(dst, route, &latency);
- xbt_assert(not route.empty() || latency,
+ src->route_to(dst, route, &latency);
+ xbt_assert(not route.empty() || latency > 0,
"You're trying to send data from %s to %s but there is no connecting path between these two hosts.",
- src->getCname(), dst->getCname());
+ src->get_cname(), dst->get_cname());
- for (auto const& link : route)
- if (link->isOff())
- failed = 1;
+ bool failed = std::any_of(route.begin(), route.end(), [](const LinkImpl* link) { return not link->is_on(); });
- if (sg_network_crosstraffic == 1) {
- dst->routeTo(src, back_route, nullptr);
- for (auto const& link : back_route)
- if (link->isOff())
- failed = 1;
+ if (cfg_crosstraffic) {
+ dst->route_to(src, back_route, nullptr);
+ if (not failed)
+ failed =
+ std::any_of(back_route.begin(), back_route.end(), [](const LinkImpl* link) { return not link->is_on(); });
}
NetworkCm02Action *action = new NetworkCm02Action(this, size, failed);
- action->weight_ = latency;
+ action->sharing_penalty_ = latency;
action->latency_ = latency;
action->rate_ = rate;
- if (getUpdateMechanism() == UM_LAZY) {
- action->refreshLastUpdate();
- }
- double bandwidth_bound = -1.0;
- if (sg_weight_S_parameter > 0)
- for (auto const& link : route)
- action->weight_ += sg_weight_S_parameter / link->bandwidth();
+ if (get_update_algorithm() == Model::UpdateAlgo::LAZY) {
+ action->set_last_update();
+ }
- for (auto const& link : route) {
- double bb = bandwidthFactor(size) * link->bandwidth();
- bandwidth_bound = (bandwidth_bound < 0.0) ? bb : std::min(bandwidth_bound, bb);
+ if (sg_weight_S_parameter > 0) {
+ action->sharing_penalty_ =
+ std::accumulate(route.begin(), route.end(), action->sharing_penalty_, [](double total, LinkImpl* const& link) {
+ return total + sg_weight_S_parameter / link->get_bandwidth();
+ });
}
- action->latCurrent_ = action->latency_;
- action->latency_ *= latencyFactor(size);
- action->rate_ = bandwidthConstraint(action->rate_, bandwidth_bound, size);
+ double bandwidth_bound = route.empty() ? -1.0 : get_bandwidth_factor(size) * route.front()->get_bandwidth();
+
+ for (auto const& link : route)
+ bandwidth_bound = std::min(bandwidth_bound, get_bandwidth_factor(size) * link->get_bandwidth());
+
+ action->lat_current_ = action->latency_;
+ action->latency_ *= get_latency_factor(size);
+ action->rate_ = get_bandwidth_constraint(action->rate_, bandwidth_bound, size);
- int constraints_per_variable = route.size();
+ size_t constraints_per_variable = route.size();
constraints_per_variable += back_route.size();
if (action->latency_ > 0) {
- action->setVariable(maxminSystem_->variable_new(action, 0.0, -1.0, constraints_per_variable));
- if (getUpdateMechanism() == UM_LAZY) {
+ action->set_variable(get_maxmin_system()->variable_new(action, 0.0, -1.0, constraints_per_variable));
+ if (get_update_algorithm() == Model::UpdateAlgo::LAZY) {
// add to the heap the event when the latency is payed
- XBT_DEBUG("Added action (%p) one latency event at date %f", action, action->latency_ + action->getLastUpdate());
- action->heapInsert(getActionHeap(), action->latency_ + action->getLastUpdate(),
- route.empty() ? Action::Type::NORMAL : Action::Type::LATENCY);
+ double date = action->latency_ + action->get_last_update();
+
+ ActionHeap::Type type = route.empty() ? ActionHeap::Type::normal : ActionHeap::Type::latency;
+
+ XBT_DEBUG("Added action (%p) one latency event at date %f", action, date);
+ get_action_heap().insert(action, date, type);
}
} else
- action->setVariable(maxminSystem_->variable_new(action, 1.0, -1.0, constraints_per_variable));
+ action->set_variable(get_maxmin_system()->variable_new(action, 1.0, -1.0, constraints_per_variable));
if (action->rate_ < 0) {
- maxminSystem_->update_variable_bound(action->getVariable(),
- (action->latCurrent_ > 0) ? sg_tcp_gamma / (2.0 * action->latCurrent_) : -1.0);
+ get_maxmin_system()->update_variable_bound(
+ action->get_variable(), (action->lat_current_ > 0) ? cfg_tcp_gamma / (2.0 * action->lat_current_) : -1.0);
} else {
- maxminSystem_->update_variable_bound(action->getVariable(),
- (action->latCurrent_ > 0)
- ? std::min(action->rate_, sg_tcp_gamma / (2.0 * action->latCurrent_))
- : action->rate_);
+ 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_);
}
- for (auto const& link : route)
- maxminSystem_->expand(link->constraint(), action->getVariable(), 1.0);
+ for (auto const& link : route) {
+ // Handle WIFI links
+ if (link->get_sharing_policy() == s4u::Link::SharingPolicy::WIFI) {
+ xbt_assert(!cfg_crosstraffic,
+ "Cross-traffic is not yet supported when using WIFI. Please use --cfg=network/crosstraffic:0");
+ NetworkWifiLink* wifi_link = (NetworkWifiLink*)link;
+
+ double src_rate = wifi_link->get_host_rate(src);
+ double dst_rate = wifi_link->get_host_rate(dst);
+
+ // TODO: What do to when src and dst are on the same AP ? (for the moment we use src rate)
+ if (src_rate != -1 && dst_rate != -1) {
+ get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0 / src_rate);
+ } else {
+ xbt_assert(
+ !(src_rate == -1 && dst_rate == -1),
+ "Some Stations are not associated to any Access Point. Make sure to call set_host_rate on all Stations.");
+ if (src_rate != -1)
+ get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0 / src_rate);
+ else
+ get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0 / dst_rate);
+ }
+ } else {
+ get_maxmin_system()->expand(link->get_constraint(), action->get_variable(), 1.0);
+ }
+ }
- if (not back_route.empty()) { // sg_network_crosstraffic was activated
- XBT_DEBUG("Crosstraffic active adding backward flow using 5%%");
+ if (cfg_crosstraffic) {
+ XBT_DEBUG("Crosstraffic active: adding backward flow using 5%% of the available bandwidth");
for (auto const& link : back_route)
- maxminSystem_->expand(link->constraint(), action->getVariable(), .05);
+ 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
// (You would also have to change simgrid::kernel::lmm::Element::get_concurrency())
}
XBT_OUT();
- simgrid::s4u::Link::onCommunicate(action, src, dst);
+ simgrid::s4u::Link::on_communicate(*action, src, dst);
return action;
}
* Resource *
************/
NetworkCm02Link::NetworkCm02Link(NetworkCm02Model* model, const std::string& name, double bandwidth, double latency,
- e_surf_link_sharing_policy_t policy, lmm_system_t system)
+ s4u::Link::SharingPolicy policy, kernel::lmm::System* system)
: LinkImpl(model, name, system->constraint_new(this, sg_bandwidth_factor * bandwidth))
{
bandwidth_.scale = 1.0;
latency_.scale = 1.0;
latency_.peak = latency;
- if (policy == SURF_LINK_FATPIPE)
- constraint()->unshare();
+ if (policy == s4u::Link::SharingPolicy::FATPIPE)
+ get_constraint()->unshare();
- simgrid::s4u::Link::onCreation(this->piface_);
+ simgrid::s4u::Link::on_creation(this->piface_);
}
-void NetworkCm02Link::apply_event(tmgr_trace_event_t triggered, double value)
+void NetworkCm02Link::apply_event(kernel::profile::Event* triggered, double value)
{
/* Find out which of my iterators was triggered, and react accordingly */
if (triggered == bandwidth_.event) {
- setBandwidth(value);
+ set_bandwidth(value);
tmgr_trace_event_unref(&bandwidth_.event);
} else if (triggered == latency_.event) {
- setLatency(value);
+ set_latency(value);
tmgr_trace_event_unref(&latency_.event);
- } else if (triggered == stateEvent_) {
+ } else if (triggered == state_event_) {
if (value > 0)
- turnOn();
+ turn_on();
else {
- kernel::lmm::Variable* var = nullptr;
- const_lmm_element_t elem = nullptr;
- double now = surf_get_clock();
-
- turnOff();
- while ((var = constraint()->get_variable(&elem))) {
- Action* action = static_cast<Action*>(var->get_id());
-
- if (action->getState() == Action::State::running ||
- action->getState() == Action::State::ready) {
- action->setFinishTime(now);
- action->setState(Action::State::failed);
- }
- }
+ turn_off();
}
- tmgr_trace_event_unref(&stateEvent_);
+ tmgr_trace_event_unref(&state_event_);
} else {
xbt_die("Unknown event!\n");
}
- XBT_DEBUG("There was a resource state event, need to update actions related to the constraint (%p)", constraint());
+ XBT_DEBUG("There was a resource state event, need to update actions related to the constraint (%p)",
+ get_constraint());
}
-void NetworkCm02Link::setBandwidth(double value)
+void NetworkCm02Link::set_bandwidth(double value)
{
bandwidth_.peak = value;
- model()->getMaxminSystem()->update_constraint_bound(constraint(),
- sg_bandwidth_factor * (bandwidth_.peak * bandwidth_.scale));
- TRACE_surf_link_set_bandwidth(surf_get_clock(), getCname(), sg_bandwidth_factor * bandwidth_.peak * bandwidth_.scale);
+ get_model()->get_maxmin_system()->update_constraint_bound(get_constraint(),
+ sg_bandwidth_factor * (bandwidth_.peak * bandwidth_.scale));
+
+ LinkImpl::on_bandwidth_change();
if (sg_weight_S_parameter > 0) {
double delta = sg_weight_S_parameter / value - sg_weight_S_parameter / (bandwidth_.peak * bandwidth_.scale);
kernel::lmm::Variable* var;
- const_lmm_element_t elem = nullptr;
- const_lmm_element_t nextelem = nullptr;
+ const kernel::lmm::Element* elem = nullptr;
+ const kernel::lmm::Element* nextelem = nullptr;
int numelem = 0;
- while ((var = constraint()->get_variable_safe(&elem, &nextelem, &numelem))) {
+ while ((var = get_constraint()->get_variable_safe(&elem, &nextelem, &numelem))) {
NetworkCm02Action* action = static_cast<NetworkCm02Action*>(var->get_id());
- action->weight_ += delta;
- if (not action->isSuspended())
- model()->getMaxminSystem()->update_variable_weight(action->getVariable(), action->weight_);
+ action->sharing_penalty_ += delta;
+ if (not action->is_suspended())
+ get_model()->get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_);
}
}
}
-void NetworkCm02Link::setLatency(double value)
+void NetworkCm02Link::set_latency(double value)
{
double delta = value - latency_.peak;
kernel::lmm::Variable* var = nullptr;
- const_lmm_element_t elem = nullptr;
- const_lmm_element_t nextelem = nullptr;
+ const kernel::lmm::Element* elem = nullptr;
+ const kernel::lmm::Element* nextelem = nullptr;
int numelem = 0;
latency_.peak = value;
- while ((var = constraint()->get_variable_safe(&elem, &nextelem, &numelem))) {
+ while ((var = get_constraint()->get_variable_safe(&elem, &nextelem, &numelem))) {
NetworkCm02Action* action = static_cast<NetworkCm02Action*>(var->get_id());
- action->latCurrent_ += delta;
- action->weight_ += delta;
+ action->lat_current_ += delta;
+ action->sharing_penalty_ += delta;
if (action->rate_ < 0)
- model()->getMaxminSystem()->update_variable_bound(action->getVariable(),
- sg_tcp_gamma / (2.0 * action->latCurrent_));
+ get_model()->get_maxmin_system()->update_variable_bound(action->get_variable(), NetworkModel::cfg_tcp_gamma /
+ (2.0 * action->lat_current_));
else {
- model()->getMaxminSystem()->update_variable_bound(
- action->getVariable(), std::min(action->rate_, sg_tcp_gamma / (2.0 * action->latCurrent_)));
+ get_model()->get_maxmin_system()->update_variable_bound(
+ action->get_variable(), std::min(action->rate_, NetworkModel::cfg_tcp_gamma / (2.0 * action->lat_current_)));
- if (action->rate_ < sg_tcp_gamma / (2.0 * action->latCurrent_)) {
+ if (action->rate_ < 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->latCurrent_);
+ XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f", action->lat_current_);
}
}
- if (not action->isSuspended())
- model()->getMaxminSystem()->update_variable_weight(action->getVariable(), action->weight_);
+ if (not action->is_suspended())
+ get_model()->get_maxmin_system()->update_variable_penalty(action->get_variable(), action->sharing_penalty_);
+ }
+}
+
+NetworkWifiLink::NetworkWifiLink(NetworkCm02Model* model, const std::string& name, std::vector<double> bandwidths,
+ s4u::Link::SharingPolicy policy, lmm::System* system)
+ : NetworkCm02Link(
+ model, name, 1 / sg_bandwidth_factor, 0, policy,
+ system) // Since link use bw*sg_bandwidth_factor we should divise in order to as 1 as bound in the lmm system
+{
+ for (auto bandwidth : bandwidths) {
+ bandwidths_.push_back({bandwidth, 1.0, nullptr});
}
}
+void NetworkWifiLink::set_host_rate(s4u::Host* host, int rate_level)
+{
+ auto insert_done = host_rates_.insert(std::make_pair(host->get_name(), rate_level));
+ if (insert_done.second == false)
+ insert_done.first->second = rate_level;
+}
+
+double NetworkWifiLink::get_host_rate(sg_host_t host)
+{
+ std::map<xbt::string, int>::iterator host_rates_it;
+ host_rates_it = host_rates_.find(host->get_name());
+
+ if (host_rates_it == host_rates_.end())
+ return -1;
+
+ int rate_id = host_rates_it->second;
+ xbt_assert(rate_id >= 0 && rate_id < (int)bandwidths_.size(), "Host \"%s\" has an invalid rate \"%d\"",
+ host->get_name().c_str(), rate_id);
+
+ Metric rate = bandwidths_[rate_id];
+ return rate.peak * rate.scale;
+}
+
+s4u::Link::SharingPolicy NetworkWifiLink::get_sharing_policy()
+{
+ return s4u::Link::SharingPolicy::WIFI;
+}
+
/**********
* Action *
**********/
-void NetworkCm02Action::updateRemainingLazy(double now)
+void NetworkCm02Action::update_remains_lazy(double now)
{
- if (suspended_ != Action::SuspendStates::not_suspended)
+ if (not is_running())
return;
- double delta = now - getLastUpdate();
- double max_duration = getMaxDuration();
+ double delta = now - get_last_update();
- if (getRemainsNoUpdate() > 0) {
- XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, getRemainsNoUpdate(), getLastUpdate());
- updateRemains(getLastValue() * delta);
+ if (get_remains_no_update() > 0) {
+ XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, get_remains_no_update(),
+ get_last_update());
+ update_remains(get_last_value() * delta);
- XBT_DEBUG("Updating action(%p): remains is now %f", this, getRemainsNoUpdate());
+ XBT_DEBUG("Updating action(%p): remains is now %f", this, get_remains_no_update());
}
- if (max_duration > NO_MAX_DURATION) {
- double_update(&max_duration, delta, sg_surf_precision);
- setMaxDuration(max_duration);
- }
+ update_max_duration(delta);
- if ((getRemainsNoUpdate() <= 0 && (getVariable()->get_weight() > 0)) ||
- ((max_duration > NO_MAX_DURATION) && (max_duration <= 0))) {
- finish(Action::State::done);
- heapRemove(getModel()->getActionHeap());
+ if ((get_remains_no_update() <= 0 && (get_variable()->get_penalty() > 0)) ||
+ ((get_max_duration() != NO_MAX_DURATION) && (get_max_duration() <= 0))) {
+ finish(Action::State::FINISHED);
+ get_model()->get_action_heap().remove(this);
}
- refreshLastUpdate();
- setLastValue(getVariable()->get_value());
+ set_last_update();
+ set_last_value(get_variable()->get_value());
}
}
}
+} // namespace simgrid
