Detecting Temporal Logic Predicates on the Happened-Before Model

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Detecting Temporal Logic Predicates on the Happened-Before Model
Detection of a global predicate is a fundamental problem in distributed computing. In this paper we describe new predicate detection algorithms for certain temporal logic predicates. We use a temporal logic, CTL, for specifying properties of a distributed computation and interpret it on a finite lattice of global states. We present solutions to the predicate detection of linear and observer-independent predicates under £¥¤ and ¦§¤ operators of CTL. For linear predicates we develop polynomial-time predicate detection algorithms which exploit the structure of finite distributive lattices. For observer-independent predicates we prove that predicate detection is NP-complete under £¥¤ operator and co-NP-complete under ¦¨¤ operator. We also present polynomial-time algorithms for a CTL operator called until , for which such algorithms did not exist. Finally, our work unifies many earlier results in predicate detection in a single framework.
Alper Sen, Vijay K. Garg
Added 15 Jul 2010
Updated 15 Jul 2010
Type Conference
Year 2002
Where IPPS
Authors Alper Sen, Vijay K. Garg
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