allocate.c:
	Used for initial allocation of MPI processors

child.c:
	Does the work assigned to children.

err-handler.c:
	Handles errors.

extern.h:
	Has all the external variables.  Do a #define extern in one file to
	make sure that these externs are also defined.  Done in allocate.c in
	the current set up.

hello_world.c:
	Contains the main/driver program.  This one executes all teh children.

localmpi.h:
	All the local function prototypes and #define'd constants.

master.c:
	Handles returns and cleans up.