Summary:
This is an example program that runs with PDT in x86_64.

Description:
The example program includes a x86_64 program with PDT tracing.

How to run:
First, make sure that in Makefile, PDT_DIR is pointing to the actual PDT directory.
Then, compile the program using "make".
Afterwards, set the environment varible PDT_CONFIG_FILE to point the PDT configuration
file you would like to use.
Finally, set the LD_LIBRARY_PATH environment variable to include the right directory 
PDT_DIR/usr/lib/trace (or lib64) and run the example called "simple".

Note:
To compile 32 bits version please set an environment variable called COMPILATION_BITS 
to be 32.
