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Exploiting process variability in voltage frequency control

Diego Ramos Ruggeri
May 16, 2017
Technology
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Exploiting process variability in voltage frequency control

Diego Ramos Ruggeri

May 16, 2017
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Transcript

  1. Exploiting Process Variability in Voltage/Frequency Control Diego Ruggeri

  2. Variability aware DVFS Speed binning 16 core : 4 x

    4 mash Power / Throughput 2 VFI DVFS: Threshold, Greedy search, MaxBIPS
  3. None
  4. None
  5. None

  6. Modeling Channel length Leakage and Frequence

  7. None
  8. None
  9. None
  10. None

  11. DVFS strategies Threshold Scales V/F according to utilization Aware version:

    threshold set per VFI Greedy search Scale V/F to keep measured EPI2 (energy per instruction) optimal Aware version: MaxBIPS Maximum throughput meeting power budget (80%)
  12. None

  13. Fine Grained (VFI) DVTS

  14. Variability aware DVFS

  15. Fine Grained VFI DVTS

  16. Coarse Grained VFI DVTS

  17. Topologies