Synchronous cooperation for explicit multi-threading

  • Authors:

  • J. A. Bergstra;C. A. Middelburg

  • Affiliations:

  • University of Amsterdam, Programming Research Group, P. O. Box 41882, 1009 DB, Amsterdam, The Netherlands and Utrecht University, Department of Philosophy, P. O. Box 80126, 3508 TC, Utrecht, The N ...;University of Amsterdam, Programming Research Group, P. O. Box 41882, 1009 DB, Amsterdam, The Netherlands

  • Venue:
  • Acta Informatica
  • Year:
  • 2007

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Abstract

We develop an algebraic theory of threads, synchronous cooperation of threads and interaction of threads with Maurer machines, and investigate program parallelization using the resulting theory. Program parallelization underlies techniques for speeding up instruction processing on a computer that make use of the abilities of the computer to process instructions simultaneously in cases where the state changes involved do no influence each other. One of our findings is that a strong induction principle is needed when proving theorems about sufficient conditions for the correctness of program parallelizations. The induction principle introduced has brought us to construct a projective limit model for the theory developed.