Learning about TOSSIM

• TOSSIM is a discrete event simulator.

• When it runs, it pulls events of the event queue (sorted by time) and executes them.

• It works by replacing components with simulation implementations.

• TOSSIM is a library: you must write a program that configures a simulation and runs it.

Preparing environment

Install required additional packages: gcc-4.8, g++-4.8 and python-dev.

Edit $TOSROOT/support/make/sim.extra:

• Change value of GCC to gcc-4.8.

• Change value of GPP to g++-4.8.

• In PYTHON_VERSION change argument of the sed command to:

  's/Python 2\.\([0-9]\)\..*/2.\1/'
  

Verify it works by compiling TOSSIM for the Blink example app:

$ cd apps/Blink
$ make micaz sim

and then invoking python and importing TOSSIM:

>>> from TOSSIM import *

Using TOSSIM

Follow TOSSIM tutorial. Sections 1 – 5 are essential for our classes. Feel encouraged to read also Sections 6 – 8 containing other useful information (e.g. using gdb).

JTossim

There is a GUI to TOSSIM. It contains also some additional useful features. See JTossim website.