A criticality analysis of clustering in superscalar processors

  title={A criticality analysis of clustering in superscalar processors},
  author={Pierre Salverda and Craig B. Zilles},
  journal={38th Annual IEEE/ACM International Symposium on Microarchitecture (MICRO'05)},
  pages={12 pp.-66}
Clustered machines partition hardware resources to circumvent the cycle time penalties incurred by large, monolithic structures. This partitioning introduces a long inter-cluster forwarding latency and the potential for load imbalance, both of which degrade IPC and thus counter the cycle time benefits of clustering. We show that program dataflow can be mapped to clustered machines so as to achieve an IPC rivaling that of an equivalent monolithic machine. That is, the IPC penalties observed by… CONTINUE READING
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