After decompression and assuming that all files are in the same directory, the files can be compiled and linked using make. 

Usage: ./cpb [-d, -n, -k, -i, -p] command parameters
	-d directory 	Directory where data is stored
	-n # 	Number of observations to be used
	-k # 	Number of spells to be used
	-i filename1 	File for intermediate parameters
	-p filename2 	File for starting parameters

As an option mpirun can be used, see your mpi program for more details.

