Increase Memory Consumption - EnergyModel

[Giovanna Garcia]

Hello,

Mine simulation where I am using the WifiRadioEnergyModel together with the EnergyModel is with an increase memory consumption.

I have reduced the scenario and the number of nodes, inserted the WifiRadioEnergyModel just in one node and still it is having an increase memory consumption.

I am using the NS3.29 version, and attached those files in here and they can be found here too: https://github.com/ggarciabas/wifi_energy_results

I have created an EnergySource called uav-energy-source, just a reduced and modified structure from BasicEnergySource.

When I execute with the UavEnergySource the simulation is easily ended but, with a high memory consumption.

file: test-bed.cc

/* Mine energy source */
  UavEnergySourceHelper sourceHelper;
  sourceHelper.Set("ScenarioName", StringValue(m_scenarioName));
  sourceHelper.Set("UavEnergySourceInitialEnergy", DoubleValue(m_initialEnergyJ)); // Joules
  EnergySourceContainer sources = sourceHelper.Install(m_uavs.Get(0)); // install source
  // DynamicCast<UavEnergySource>(sources.Get(0))->Start(); --- not used in this simulation

  // Energy sources
  // EnergySourceContainer sources;
  // BasicEnergySourceHelper basicSourceHelper;
  // basicSourceHelper.Set ("BasicEnergySourceInitialEnergyJ", DoubleValue (m_initialEnergyJ));
  // basicSourceHelper.Set ("BasicEnergySupplyVoltageV", DoubleValue (3.3));
  // sources = basicSourceHelper.Install(m_uavs.Get(0));

// configure cli
  m_cli.Create(20);

I have used the Valgrind, file massif_uav_source.out, but the htop tool showed approx 47% of memory (5.64GB)

Execution line: ./waf --run wifi_energy_results --command-template="valgrind --tool=massif %s --Protocol=1 --Scenario=1 --Seed=289265"

Using the BasicEnergySource:

/* Mine energy source */
  // UavEnergySourceHelper sourceHelper;
  // sourceHelper.Set("ScenarioName", StringValue(m_scenarioName));
  // sourceHelper.Set("UavEnergySourceInitialEnergy", DoubleValue(m_initialEnergyJ)); // Joules
  // sources = sourceHelper.Install(m_uavs.Get(0)); // install source
  //// DynamicCast<UavEnergySource>(sources.Get(0))->Start(); --- not used in this simulation

  // Energy sources
  EnergySourceContainer sources;
  BasicEnergySourceHelper basicSourceHelper;
  basicSourceHelper.Set ("BasicEnergySourceInitialEnergyJ", DoubleValue (m_initialEnergyJ));
  basicSourceHelper.Set ("BasicEnergySupplyVoltageV", DoubleValue (3.3));
  sources = basicSourceHelper.Install(m_uavs.Get(0));

With reduced nodes:

// configure cli
  m_cli.Create(5);

I have tried to use the valgrind tool but I got this error:

./waf --run wifi_energy_results --command-template="valgrind --tool=massif  %s --Protocol=1 --Scenario=1 --Seed=289265"

Waf: Entering directory `/home/ggarciabas/ns3/build'
Waf: Leaving directory `/home/ggarciabas/ns3/build'
Build commands will be stored in build/compile_commands.json
'build' finished successfully (2.281s)
==10565== Massif, a heap profiler
==10565== Copyright (C) 2003-2017, and GNU GPL'd, by Nicholas Nethercote
==10565== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==10565== Command: /home/ggarciabas/ns3/build/scratch/wifi_energy_results/wifi_energy_results --Protocol=1 --Scenario=1 --Seed=289265
==10565==
==10565==
==10565== Process terminating with default action of signal 11 (SIGSEGV)
==10565==  Access not within mapped region at address 0x118EA000
==10565==    at 0xD732BB1: ns3::Object::~Object() (object.cc:114)
==10565==    by 0xC0A4AC1: ns3::EnergySourceContainer::~EnergySourceContainer() (energy-source-container.cc:45)
==10565==    by 0x13DF5D: ns3::TestBed::ConfigureScenario() (test-bed.cc:389)
==10565==    by 0x13459C: ns3::TestBed::Run() (test-bed.cc:129)
==10565==    by 0x130F1B: main (main.cc:49)
==10565==  If you believe this happened as a result of a stack
==10565==  overflow in your program's main thread (unlikely but
==10565==  possible), you can try to increase the size of the
==10565==  main thread stack using the --main-stacksize= flag.
==10565==  The main thread stack size used in this run was 8388608.
==10565==
Command ['valgrind', '--tool=massif', '/home/ggarciabas/ns3/build/scratch/wifi_energy_results/wifi_energy_results', '--Protocol=1', '--Scenario=1', '--Seed=289265'] terminated with signal SIGSEGV. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

Running it under GDB no problems are found, just 50% of memory (~6GB):

GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /home/ggarciabas/ns3/build/scratch/wifi_energy_results/wifi_energy_results...done.
(gdb) r
Starting program: /home/ggarciabas/ns3/build/scratch/wifi_energy_results/wifi_energy_results --Protocol=1 --Scenario=1 --Seed=289265
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Inferior 1 (process 10256) exited normally]
(gdb)

When I increase the nodes:

  // configure cli
  m_cli.Create(20);

Memory increase:

It reaches the 84% of memory and starts to use the swap memory.

I would like to know if someone already had this problem, because I have searched about this and found nothing.

If I remove the structure from the WifiRadioEnergyModel and EnergyModule the simulation do not use 1% of memory.

This is a normal problem or am I doing some configuration wrong?

Thanks,
Best regards,
Giovanna Garcia.

[teodoro saavedra]

i have a similar problem, did you find a solution?