A case for chip multiprocessors based on the data-driven multithreading model

  • Authors:
  • Pedro Trancoso;Paraskevas Evripidou;Kyriakos Stavrou;Costas Kyriacou

  • Affiliations:
  • Department of Computer Science, University of Cyprus, Nicosia, Cyprus;Department of Computer Science, University of Cyprus, Nicosia, Cyprus;Department of Computer Science, University of Cyprus, Nicosia, Cyprus;Computer Engineering Department Frederick Institute of Technology, Nicosia, Cyprus

  • Venue:
  • International Journal of Parallel Programming
  • Year:
  • 2006

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Abstract

Current high-end microprocessors achieve high performance as a result of adding more features and therefore increasing complexity. This paper makes the case for a Chip-Multiprocessor based on the Data-Driven Multithreading (DDM-CMP) execution model in order to overcome the limitations of current design trends. Data-Driven Multithreading (DDM) is a multithreading model that effectively hides the communication delay and synchronization overheads. DDM-CMP avoids the complexity of other designs by combining simple commodity microprocessors with a small hardware overhead for thread scheduling and an interconnection network. Preliminary experimental results show that a DDM-CMP chip of the same hardware budget as a high-end commercial microprocessor, clocked at the same frequency, achieves a speedup of up to 18.5 with a 78-81% power consumption of the commercial chip. Overall, the estimated results for the proposed DDM-CMP architecture show a significant benefit in terms of both speedup and power consumption making it an attractive architecture for future processors.