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Designing Parallel Algorithms

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• Elements of parallel algorithm design
  • Discover which pieces of work that can be done concurrently (tasks)

  • Mapping of the tasks onto multiple processors

  • Decide on how to distribute the input, output and intermediate result across the different processors

  • Management the access of shared data

  • Synchronize the processors at the critical points of the parallel execution

• Holy Grail of parallel algorithm design
  • Maximize concurrency