-/* Copyright (c) 2010-2021. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2010-2023. 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 <simgrid/s4u/VirtualMachine.hpp>
#include "src/kernel/activity/ExecImpl.hpp"
-#include "src/surf/surf_interface.hpp"
+#include "src/simgrid/module.hpp" // SIMGRID_REGISTER_PLUGIN
// Makes sure that this plugin can be activated from the command line with ``--cfg=plugin:host_load``
SIMGRID_REGISTER_PLUGIN(host_load, "Cpu load", &sg_host_load_plugin_init)
In addition, this constitutes a good introductory example on how to write a plugin.
It attaches an extension to each host to store some data, and places callbacks in the following signals:
- - :cpp:member:`simgrid::s4u::Host::on_creation`: Attach a new extension to the newly created host.
- - :cpp:member:`simgrid::s4u::Exec::on_start`: Make note that a new execution started, increasing the load.
- - :cpp:member:`simgrid::s4u::Exec::on_completion`: Make note that an execution completed, decreasing the load.
- - :cpp:member:`simgrid::s4u::Host::on_state_change`: Do what is appropriate when the host gets suspended, turned off
- or similar.
- - :cpp:member:`simgrid::s4u::Host::on_speed_change`: Do what is appropriate when the DVFS is modified.
+ - :cpp:func:`simgrid::s4u::Host::on_creation_cb`: Attach a new extension to the newly created host.
+ - :cpp:func:`simgrid::s4u::Exec::on_start_cb`: Make note that a new execution started, increasing the load.
+ - :cpp:func:`simgrid::s4u::Exec::on_completion_cb`: Make note that an execution completed, decreasing the load.
+ - :cpp:func:`simgrid::s4u::Host::on_onoff_cb`: Do what is appropriate when the host gets turned off or on.
+ - :cpp:func:`simgrid::s4u::Host::on_speed_change_cb`: Do what is appropriate when the DVFS is modified.
Note that extensions are automatically destroyed when the host gets destroyed.
@endrst
*/
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_plugin_load, surf, "Logging specific to the HostLoad plugin");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(host_load, plugin, "Logging specific to the HostLoad plugin");
-namespace simgrid {
-namespace plugin {
+namespace simgrid::plugin {
static const double activity_uninitialized_remaining_cost = -1;
// This loop updates the flops that the host executed for the ongoing computations
auto iter = begin(current_activities);
while (iter != end(current_activities)) {
- auto& activity = iter->first; // Just an alias
+ const auto& activity = iter->first; // Just an alias
auto& remaining_cost_after_last_update = iter->second; // Just an alias
- auto& action = activity->surf_action_;
+ auto& action = activity->model_action_;
auto current_iter = iter;
++iter;
- if (action != nullptr && action->get_finish_time() != now && activity->state_ == kernel::activity::State::RUNNING) {
+ if (action != nullptr && action->get_finish_time() != now &&
+ activity->get_state() == kernel::activity::State::RUNNING) {
if (remaining_cost_after_last_update == activity_uninitialized_remaining_cost) {
remaining_cost_after_last_update = action->get_cost();
}
double computed_flops_since_last_update = remaining_cost_after_last_update - /*remaining now*/activity->get_remaining();
computed_flops_ += computed_flops_since_last_update;
remaining_cost_after_last_update = activity->get_remaining();
- } else if (activity->state_ == kernel::activity::State::DONE) {
+ } else if (activity->get_state() == kernel::activity::State::DONE) {
computed_flops_ += remaining_cost_after_last_update;
current_activities.erase(current_iter);
}
current_flops_ = host_->get_load();
current_speed_ = host_->get_speed();
}
-} // namespace plugin
-} // namespace simgrid
+} // namespace simgrid::plugin
using simgrid::plugin::HostLoad;
}
// Make sure that every future host also gets an extension (in case the platform is not loaded yet)
- simgrid::s4u::Host::on_creation.connect([](simgrid::s4u::Host& host) {
+ simgrid::s4u::Host::on_creation_cb([](simgrid::s4u::Host& host) {
if (dynamic_cast<simgrid::s4u::VirtualMachine*>(&host)) // Ignore virtual machines
return;
host.extension_set(new HostLoad(&host));
});
- simgrid::s4u::Exec::on_start.connect([](simgrid::s4u::Exec const& activity) {
+ simgrid::s4u::Exec::on_start_cb([](simgrid::s4u::Exec const& activity) {
if (activity.get_host_number() == 1) { // We only run on one host
simgrid::s4u::Host* host = activity.get_host();
- const simgrid::s4u::VirtualMachine* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(host);
- if (vm != nullptr)
+ if (const auto* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(host))
host = vm->get_pm();
xbt_assert(host != nullptr);
host->extension<HostLoad>()->add_activity(static_cast<simgrid::kernel::activity::ExecImpl*>(activity.get_impl()));
XBT_WARN("HostLoad plugin currently does not support executions on several hosts");
}
});
- simgrid::s4u::Activity::on_completion.connect([](simgrid::s4u::Activity& activity) {
- const auto* exec = dynamic_cast<simgrid::s4u::Exec*>(&activity);
- if (exec == nullptr) // Only Execs are concerned here
- return;
- if (exec->get_host_number() == 1) { // We only run on one host
- simgrid::s4u::Host* host = exec->get_host();
- const simgrid::s4u::VirtualMachine* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(host);
- if (vm != nullptr)
+ simgrid::s4u::Exec::on_completion_cb([](simgrid::s4u::Exec const& exec) {
+ if (exec.get_host_number() == 1) { // We only run on one host
+ simgrid::s4u::Host* host = exec.get_host();
+ if (const auto* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(host))
host = vm->get_pm();
xbt_assert(host != nullptr);
host->extension<HostLoad>()->update();
XBT_WARN("HostLoad plugin currently does not support executions on several hosts");
}
});
- simgrid::s4u::Host::on_state_change.connect(&on_host_change);
- simgrid::s4u::Host::on_speed_change.connect(&on_host_change);
+ simgrid::s4u::Host::on_onoff_cb(&on_host_change);
+ simgrid::s4u::Host::on_speed_change_cb(&on_host_change);
}
/** @brief Returns the current load of that host, as a ratio = achieved_flops / (core_current_speed * core_amount)