Source : Free On-Line Dictionary of Computing

PARMACS
     
        The "Argonne macros" from {Argonne National Laboratory}.  A
        package of {macro}s written in {m4} for portable {parallel
        programming}, using {monitor}s on {shared memory} machines,
        and {message passing} on {distributed memory} machines.
     
        [E. Lusk et al, "Portable Programs for Parallel Processors",
        HRW 1987. p4].
     
        {(ftp://research.att.com/netlib/parmacs)}.