Abstract
We define a concrete operational model of concurrent systems, called trace automata. For such automata, there is a natural notion of permutation equivalence of computation sequences, which holds between two computation sequences precisely when they represent two interleaved views of the “same concurrent computation.” Alternatively, permutation equivalence can be characterized in terms of a residual operation on transitions of the automaton, and many interesting properties of concurrent computations can be expressed with the help of this operation. In particular, concurrent computations, ordered by “prefix,” form a Scott domain whose structure we characterize up to isomorphism.
By axiomatizing the properties of the residual operation, we obtain a more abstract formulation of automata, which we call concurrent transition systems (CTS's). By exploiting a correspondence between concurrent alphabets and certain CTS's, we are able to use the rich algebraic structure of CTS's to obtain results in trace theory. Finally, we connect CTS's and trace automata by obtaining a characterization of those CTS's that correspond in a natural way to trace automata, and we show how the correspondence suggests an interesting notion of morphism of trace automata.
Research supported in part by NSF Grant CCR-8702247.
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I. J. Aalbersberg and G. Rozenberg. Theory of traces. Theoretical Computer Science, 60(1):1–82, 1988.
M. Bednarczyk. Categories of Asynchronous Systems. PhD thesis, University of Sussex, October 1987.
G. Berry and J.-J. Lévy. Minimal and optimal computations of recursive programs. Journal of the ACM, 26(1):148–175, January 1979.
G. Boudol. Computational semantics of term rewriting systems. In M. Nivat and J. Reynolds, editors, Algebraic Methods in Semantics, pages 169–236, Cambridge University Press. 1985.
G. Boudol and I. Castellani. A non-interleaving semantics for CCS based on proved transitions. Fundamenta Informaticae, XI:433–452, 1988.
P.-L. Curien. Categorical Combinators, Sequential Algorithms, and Functional Programming. Research Notes in Theoretical Computer Science, Pitman, London, 1986.
G. Huet. Formal structures for computation and deduction (first edition). May 1986. Unpublished manuscript. INRIA, France.
M. Kwiatkowska. Categories of Asynchronous Systems. PhD thesis, University of Leicester, May 1989.
J.-J. Lévy. Réductions Correctes et Optimales dans le Lambda Calcul. PhD thesis, Université Paris VII, 1978.
N. A. Lynch and E. W. Stark. A proof of the Kahn principle for input/output automata. Information and Computation, 82(1):81–92, July 1989.
A. Mazurkiewicz. Trace theory. In Advanced Course on Petri Nets, GMD, Bad Honnef, September 1986.
P. Panangaden and E. W. Stark. Computations, residuals, and the power of indeterminacy. In Automata, Languages, and Programming, pages 439–454, Springer-Verlag. Volume 317 of Lecture Notes in Computer Science, 1988.
M. W. Shields. Deterministic asynchronous automata. In Formal Methods in Programming, North-Holland. 1985.
E. W. Stark. Compositional relational semantics for indeterminate dataflow networks. In Category Theory and Computer Science, pages 52–74, Springer-Verlag. Volume 389 of Lecture Notes in Computer Science, Manchester, U. K., 1989.
E. W. Stark. Concurrent transition system semantics of process networks. In Fourteenth ACM Symposium on Principles of Programming Languages, pages 199–210, January 1987.
E. W. Stark. Concurrent transition systems. Theoretical Computer Science, 64:221–269, 1989.
E. W. Stark. On the relations computed by a class of concurrent automata. In Seventeenth Annual ACM Symposium on Principles of Programming Languages, January 1990.
G. Winskel. Events in Computation. PhD thesis, University of Edinburgh, 1980.
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© 1990 Springer-Verlag Berlin Heidelberg
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Stark, E.W. (1990). Connections between a concrete and an abstract model of concurrent systems. In: Main, M., Melton, A., Mislove, M., Schmidt, D. (eds) Mathematical Foundations of Programming Semantics. MFPS 1989. Lecture Notes in Computer Science, vol 442. Springer, New York, NY. https://doi.org/10.1007/BFb0040254
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DOI: https://doi.org/10.1007/BFb0040254
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