Energy-Efficient Design of Domain-Specific Compute Fabrics

Speaker: Andreas Gerstlauer , The University of Texas at Austin - ECE

Date: Thursday, October 03, 2013

Time: 3:00 PM to 4:30 PM Note: all times are in the Eastern Time Zone

Refreshments: 2:45 PM

Public: Yes

Location: 32-G449

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Host: Professor Arvind, CSG - CSAIL - MIT

Contact: Sally O. Lee, 3-6837,

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Reminder Subject: TALK: Energy-Efficient Design of Domain-Specific Compute Fabrics

Energy efficiency is arguably one of the primary concerns in both
high-performance as well as embedded computing today. There are
principally two approaches for reducing energy consumption: reducing
the overhead per computation (specialization) or reducing the amount
of computation itself (approximation). In this talk, I will present
our work in both. On the specialization side, we are investigating
domain-specific Linear Algebra Processors (LAPs) that can achieve
orders of magnitude improved efficiencies (600 double-precision GFLOPS
in 25W at 45m) while being flexible enough to run the full set of
basic linear algebra subroutines (BLAS), as well as more complicated
operations such as matrix factorizations and FFTs. In approximate
computing, I will present work on circuit, logic and system level
techniques to trade off carefully controlled reductions in output
quality for significant energy gains in digital signal processing
kernels, such as (I)DCTs, filters and FFTs. In both cases, we are
interested in investigating application of such optimized blocks in
larger heterogeneous compute systems.

Andreas Gerstlauer is an Assistant Professor in Electrical and
Computer Engineering at The University of Texas at Austin. He received
his Ph.D. in Information and Computer Science from the University of
California, Irvine (UCI) in 2004. Prior to joining UT Austin in 2008,
he was an Assistant Researcher in the Center for Embedded Computer
Systems (CECS) at UC Irvine, leading a research group to develop
electronic system-level (ESL) design tools. Dr. Gerstlauer is
co-author on 3 books and more than 60 conference and journal
publications. He serves as an Associated Editor for ACM TECS as well as
on the program committee of conferences such as DAC, DATE, CODES+ISSS
and ICCD. His research interests include system-level design automation,
system modeling, design languages and methodologies, and embedded
hardware and software synthesis.

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Created by Sally O. Lee Email at Friday, September 20, 2013 at 1:16 PM.