Measuring the Performance Impact of SP-Restricted Programming in Shared-Memory Machines

  • Authors:
  • Arturo González-Escribano;Arjan J. C. van Gemund;Valentín Cardeñoso-Payo;Judith Alonso-López;David Martín-García;Alberto Pedrosa-Calvo

  • Affiliations:
  • -;-;-;-;-;-

  • Venue:
  • VECPAR '00 Selected Papers and Invited Talks from the 4th International Conference on Vector and Parallel Processing
  • Year:
  • 2000

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Abstract

A number of interesting properties for scheduling and/or cost estimation arise when using parallel programming models that restrict the topology of a program's task graph to an SP (series-parallel) form. A critical question however, is to what extent the ability to exploit parallelism is compromised when only SP coordination structures are allowed. This paper presents new application parameters which are key factors to predict this loss of parallelism at both language modeling and program execution levels, for shared-memory architectures. Our results indicate that a wide range of parallel computations can be expressed using a structured coordination model with a loss of parallelism that is small and predictable.