P4

A macro/subroutine package for parallel programming by RustyLusk . P4 uses monitors on sharedmemory machines and message passing on distributed memorymachines. It is implemented as a subroutine library for Cand Fortran. An enhancement of the "Argonne macros",PARMACS.

ftp://info.mcs.anl.gov/pub/p4t1.2.tar.Z. E-mail:.

P4

(1) See Pentium 4.

(2) An open source special-purpose network programming language from the P4 Consortium (www.p4.org) that is used to control packet forwarding in software-defined network (SDN) devices (switches, routers, etc.). P4 compilers are available for numerous P4 "targets," which are the chips that perform the actual packet forwarding. Devices that execute P4 instructions are also called "P4 switches." See software-defined networking.

Acronym	Definition
P4➣Pentium IV (Intel microprocessor)
P4➣Persona 4 (game)
P4➣Primary 4 (various schools)
P4➣Progesterone (hormone)
P4➣Perforce (software vendor)
P4➣Phosphorus
P4➣Perfect Fourth (music)
P4➣Postnatal Day 4
P4➣Personal For (US Navy)
P4➣Prevent Polythene - Protect Planet (India; eco-campaign)
P4➣Product, Price, Promotion and Place (marketing analysis tool)
P4➣Photolithographic Pattern Plated Probe