Oregon State University

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Event Details

MS Final Examination – Ryan Albright

Friday, April 20, 2012 2:00 PM - 4:00 PM

Optimizing Performance/Watt of Embedded SIMD Multiprocessors through a priori Application Guided Power Scheduling
A method for improving performance/watt of an embedded single-instruction multiple-data (SIMD) architecture using application-guided a priori scheduling of hardware resources is presented. A multi-core architectural simulator is adopted that accurately estimates power, performance, and utilization of various processor components (logic, interconnect and memory). A greedy search is then performed on each algorithm block of a signal processing chain in order to schedule each component’s throughput and power. The proposed software-directed hardware rebalancing, applied to a typical electroencephalography (EEG) filtering chain is analyzed for two different SIMD architectures. The first, representing a super Vth processor demonstrates a 51%-86% improvement in performance/watt at 1%-10% throughput reduction using block level or algorithm level a priori scheduling. The second architecture used is Synctium, a near Vth processor which demonstrates 50%-99% performance/watt improvement across the same throughput reduction range and optimization techniques.

Major Advisor: Patrick Chiang
Committee: Terri Fiez
Committee Roger Traylor
GCR: Joe Zaworski

Kelley Engineering Center (campus map)
Shannon Thompson
1 541 737 7234
shannon.thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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