Multiprocessor Synchronization for Concurrent Loops

  • Authors:
  • Michael Wolfe

  • Affiliations:
  • -

  • Venue:
  • IEEE Software
  • Year:
  • 1988

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Abstract

Execution of concurrent loops on multiprocessor computers often requires synchronizing the processors. Synchronization schemes are surveyed that are suitable for automatic problem decomposition. The model of a shared-memory multiprocessor is used, as is the concurrent-loop paradigm, which is to compile a loop so each processor is assigned a different loop iteration. The discussion covers data dependence, removing synchronization points, random synchronization, pipelining, barrier synchronization, and critical sections.