[ndnSIM] Question about ndnSIM

Spyridon (Spyros) Mastorakis mastorakis at cs.ucla.edu
Wed Jul 19 19:05:58 PDT 2017


visualizer is a (rather unstable) component of NS3. We have written some extensions to allow the visualization of NDN traffic.

I do not think that this error is related to ndnSIM and should not cause any problems to your simulations.


Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
Internet Research Laboratory
Computer Science Department

> On Jul 19, 2017, at 10:08 AM, Marzieh Babaeianjelodar <babaeim at clarkson.edu> wrote:
> Dear All,
> I have been working with ndnSIM and when I run a scenario and I close the visualizer I get this:
> marzieh at marzieh-VirtualBox:~/ndnSIM/ns-3$ ./waf --run=ndn-simple --vis
> Waf: Entering directory `/home/marzieh/ndnSIM/ns-3/build'
> Waf: Leaving directory `/home/marzieh/ndnSIM/ns-3/build'
> Build commands will be stored in build/compile_commands.json
> 'build' finished successfully (2.297s)
> Could not load icon applets-screenshooter due to missing gnomedesktop Python module
> Could not load icon gnome-terminal due to missing gnomedesktop Python module
> scanning topology: [0, 3) nodes...
> assert failed. cond="SystemThread::Equals (m_main)", msg="Simulator::Schedule Thread-unsafe invocation!", file=../src/core/model/default-simulator-impl.cc <http://default-simulator-impl.cc/>, line=231
> terminate called without an active exception
> Command ['/home/marzieh/ndnSIM/ns-3/build/src/ndnSIM/examples/ns3-dev-ndn-simple-debug', '--SimulatorImplementationType=ns3::VisualSimulatorImpl'] terminated with signal SIGIOT. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").
> marzieh at marzieh-VirtualBox:~/ndnSIM/ns-3$
> I was wondering if there is a way to fix this? or is it important to fix?
> Best Regards,
> Marzieh

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