Technology-Driven Limits on DVFS Controllability of Multiple Voltage-Frequency Island Designs: A System-Level Perspective

Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
In this paper, the authors consider the case of network-on-chip (NoC) based Multiple-Processor System-on-Chips (MPSoCs) implemented using multiple Voltage and Frequency Islands (VFIs) that rely on ne-grained Dynamic Voltage and Frequency Scaling (DVFS) for run-time control of the system power dissipation. Specifically, they present a framework to compute theoretical bounds on the performance of DVFS controllers for such systems under the impact of three important technology driven constraints: reliability and temperature driven upper limits on the maximum supply voltage; inductive noise driven constraints on the maximum rate of change of voltage/frequency and increasing manufacturing process variations.

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