/* 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/s4u/Engine.hpp"
+#include <simgrid/s4u/Engine.hpp>
+
#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 "surf/surf.hpp"
+
+#include <numeric>
#ifndef NETWORK_INTERFACE_CPP_
#define NETWORK_INTERFACE_CPP_
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_network, ker_resource, "Network resources, that fuels communications");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_network, ker_resource, "Network resources, that fuel communications");
/*********
* Model *
namespace resource {
/** @brief Command-line option 'network/TCP-gamma' -- see @ref options_model_network_gamma */
-simgrid::config::Flag<double> NetworkModel::cfg_tcp_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 */
-simgrid::config::Flag<bool> NetworkModel::cfg_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::get_latency_factor(double /*size*/)
-{
- return sg_latency_factor;
-}
-
-double NetworkModel::get_bandwidth_factor(double /*size*/)
-{
- return sg_bandwidth_factor;
-}
-
-double NetworkModel::get_bandwidth_constraint(double rate, double /*bound*/, double /*size*/)
-{
- return rate;
-}
-
double NetworkModel::next_occurring_event_full(double now)
{
double minRes = Model::next_occurring_event_full(now);
return minRes;
}
-/************
- * Resource *
- ************/
-
-LinkImpl::LinkImpl(const std::string& name) : Resource_T(name), 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());
-}
-
-/** @brief Fire the required callbacks and destroy the object
- *
- * Don't delete directly a Link, call l->destroy() instead.
- */
-void LinkImpl::destroy()
-{
- s4u::Link::on_destruction(this->piface_);
- delete this;
-}
-
-bool LinkImpl::is_used() const
-{
- return get_model()->get_maxmin_system()->constraint_used(get_constraint());
-}
-
-double LinkImpl::get_latency() const
-{
- return latency_.peak * latency_.scale;
-}
-
-double LinkImpl::get_bandwidth() const
-{
- return bandwidth_.peak * bandwidth_.scale;
-}
-
-LinkImpl* LinkImpl::set_sharing_policy(s4u::Link::SharingPolicy policy)
-{
- get_constraint()->set_sharing_policy(policy);
- return this;
-}
-s4u::Link::SharingPolicy LinkImpl::get_sharing_policy() const
-{
- return get_constraint()->get_sharing_policy();
-}
-
-void LinkImpl::latency_check(double latency) const
-{
- static double last_warned_latency = sg_surf_precision;
- if (latency != 0.0 && latency < last_warned_latency) {
- XBT_WARN("Latency for link %s is smaller than surf/precision (%g < %g)."
- " For more accuracy, consider setting \"--cfg=surf/precision:%g\".",
- get_cname(), latency, sg_surf_precision, latency);
- last_warned_latency = latency;
- }
-}
-
-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::Element* elem = nullptr;
- double now = surf_get_clock();
- while (const auto* 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::seal()
-{
- xbt_assert(this->get_model(), "Cannot seal Link(%s) without setting the Network model first", this->get_cname());
- Resource::seal();
- s4u::Link::on_creation(*get_iface());
-}
-
-void LinkImpl::on_bandwidth_change() const
-{
- s4u::Link::on_bandwidth_change(this->piface_);
-}
-
-LinkImpl* LinkImpl::set_bandwidth_profile(profile::Profile* profile)
-{
- if (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);
- }
- return this;
-}
-
-LinkImpl* LinkImpl::set_latency_profile(profile::Profile* profile)
-{
- if (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);
- }
- return 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
+ 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 */
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<LinkImpl*>(resource);
- if (link != nullptr)
+ if (auto* link = dynamic_cast<LinkImpl*>(get_variable()->get_constraint(i)->get_id()))
retlist.push_back(link);
}
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(); });
}
-} // namespace kernel
+
+void add_link_latency(std::vector<LinkImpl*>& result, LinkImpl* link, double* latency)
+{
+ result.push_back(link);
+ if (latency)
+ *latency += link->get_latency();
}
+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_ */
