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A Criterion for Atomicity James H. Anderson
 

Summary: A Criterion for Atomicity
James H. Anderson
Department of Computer Science
The University of Maryland at College Park
College Park, Maryland 20742-3255
Mohamed G. Gouday
Department of Computer Sciences
The University of Texas at Austin
Austin, Texas 78712-1188
July 1990
Revised June 1991
Abstract
Most proof methods for reasoning about concurrent programs are based upon the interleaving
semantics of concurrent computation: a concurrent program is executed in a stepwise fashion,
with only one enabled action being executed at each step. Interleaving semantics, in e ect,
requires that a concurrent program be executed as a nondeterministic sequential program. This
is clearly an abstraction of the way in which concurrent programs are actually executed. To
ensure that this is a reasonable abstraction, interleaving semantics should only be used to
reason about programs with \simple" actions we call such programs \atomic." In this paper,
we formally characterize the class of atomic programs. We adopt the criterion that a program

  

Source: Anderson, James - Department of Computer Science, University of North Carolina at Chapel Hill

 

Collections: Computer Technologies and Information Sciences