Sr

n 1: a soft silver-white or yellowish metallic element of the

alkali metal group; turns yellow in air; occurs in

celestite and strontianite [syn: {strontium}, {Sr}, {atomic

number 38}]

2: the unit of solid angle adopted under the System

International d'Unites [syn: {steradian}]

SR

Synchronizing Resources.

A language for concurrent programming.

"Resources" encapsulate processes and variables they share.

Each Resource can be separately compiled. "Operations"

provide the primary mechanism for process interaction.

SR provides a novel integration of the mechanisms for invoking

and servicing operations. Consequently, it supports local and

{remote procedure call}, {rendezvous}, {message passing},

{dynamic process creation}, {multicast}, {semaphore}s and

{shared memory}.

Version 2.2 has been ported to {Sun 3}, {Sun 4}, {Decstation},

{SGI Iris}, {HP PA}, {HP 9000/300}, {NeXT}, {Sequent

Symmetry}, {DG AViiON}, {RS/6000}, {Multimax}, {Apollo} and

others.

{(ftp://cs.arizona.edu/sr/sr.tar.Z)}

E-mail: . Mailing list:

info-sr-request◊cs.arizona.edu.

["An Overview of the SR Language and Implementation", G.

Andrews, ACM TOPLAS 10:51-86 (Jan 1988)].

["The SR Programming Language: Concurrency in Practice",

G.R. Andrews et al, Benjamin/Cummings 1993, ISBN

0-8053-0088-0].

(1992-09-01)