Author: Darshan Thaker
This script can be used to test parallel vs. serial implementations.
Preconditions: The parallel version of the program takes in a number of threads as its final command line parameter. The program should also output a line starting with 'Time:' to see how long the program took.
It will output the time taken for the old version, the new version, and the speedup of the program, which is defined as OLDTIME / NEWTIME