P4
A macro/subroutine package for parallel programming by Rusty Lusk <lusk@anta.mcs.anl.gov>. P4 uses monitors on shared memory machines and message passing on distributed memory machines. It is implemented as a subroutine library for C and Fortran. An enhancement of the "Argonne macros", PARMACS.
ftp://info.mcs.anl.gov/pub/p4t1.2.tar.Z. E-mail: <p4@mcs.anl.gov>.