#include <simgrid/simix.hpp>
#include "src/kernel/resource/CpuImpl.hpp"
+#include "src/simgrid/module.hpp"
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
<table border="1">
<tr><th>#Cores loaded</th><th>Wattage</th><th>Explanation</th></tr>
- <tr><td>0 (idle)</td><td> 100 Watts </td><td> Idle value</td></tr>
- <tr><td>0 (not idle)</td><td> 120 Watts</td><td> Epsilon value</td></tr>
+ <tr><td>0 (idle)</td><td> 100 Watts </td><td>Idle value</td></tr>
<tr><td>1</td><td> 140 Watts</td><td> Linear extrapolation between Epsilon and AllCores</td></tr>
<tr><td>2</td><td> 160 Watts</td><td> Linear extrapolation between Epsilon and AllCores</td></tr>
<tr><td>3</td><td> 180 Watts</td><td> Linear extrapolation between Epsilon and AllCores</td></tr>
<tr><td>4</td><td> 200 Watts</td><td> AllCores value</td></tr>
</table>
+Here is how it looks graphically:
+
+.. image:: img/plugin-energy.svg
+ :scale: 80%
+ :align: center
+
+As you can see, the ``Epsilon`` parameter allows to freely specify the slope you want, while using the 2 parameters
+version of the model (with only ``Idle`` and ``AllCores``) requires that the ``Idle`` value is on the extension of the
+line crossing the consumption you mesure for each core amount. Please note that specifying the consumption for each core
+amount separately was not a solution because parallel tasks can use an amount of cores that is not an integer. The good
+news is that it was not necessary, as our experiments (detailed in the paper) show that the proposed linear model is
+sufficient to capture reality.
.. raw:: html
</table>
To change the pstate of a given CPU, use the following functions:
-:cpp:func:`MSG_host_get_nb_pstates()`, :cpp:func:`simgrid::s4u::Host::set_pstate()`,
-:cpp:func:`MSG_host_get_power_peak_at()`.
+:cpp:func:`sg_host_get_nb_pstates()`, :cpp:func:`simgrid::s4u::Host::set_pstate()`,
+:cpp:func:`sg_host_get_pstate_speed()`.
.. raw:: html
static void on_action_state_change(simgrid::kernel::resource::CpuAction const& action,
simgrid::kernel::resource::Action::State /*previous*/)
{
- for (simgrid::kernel::resource::CpuImpl* const& cpu : action.cpus()) {
+ for (simgrid::kernel::resource::CpuImpl const* cpu : action.cpus()) {
simgrid::s4u::Host* host = cpu->get_iface();
if (host != nullptr) {
// If it's a VM, take the corresponding PM