A typical example for multiprocessing in Windows

You should care about if __name__ == '__main__':
See following link to know what you need it.
http://stackoverflow.com/a/18205006
Sample data to run energyplus

This commit include a set of sample data to be feeded to energyplus.
Those four files are essential input files to run energyplus.
We will copy them into different folder when we run energyplus multiple
times or parallelly.
Run energyplus with 2 data sets by 2 cores.

Two energyplus are excuted with each data set seperatelly with each core.
For using it, you need to make two different directories, data, data2.

To understand this code block, you may need to see following references.

a. os.chdir: http://docs.python.org/2/library/os.html
b. call with subprocess: http://stackoverflow.com/a/89243
c. number of cores: http://stackoverflow.com/a/1006337
Change function name more clearlly, from run_ls to run_energyplus
Copy folders from original data set and then run energyplus respectively.

Usage:
$ python mplus.py
or
$ time python mplus.py

You should care about four folders after running this program.
FIXME: Remove it or not, you should decide it in the next step.