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Karu Sankaralingam
aka Karthikeyan Sankaralingam
Assistant Professor
Computer Sciences and
Electrical and Computer Engineering
karu@cs.wisc.edu, Phone: (608) 890-0121
Spring Office Hours: M,W,F noon-1:00pm

Research (CV)

• I lead the Vertical Research Group.
• Interests: Computer Architecture, Microarchitecture, VLSI, computing devices.
• If you are a graduate or undergraduate student interested in pursuing research with me, read this.

Recent Publications

• iGPU: Exception Support and Speculative Execution on GPUs, ISCA 2012, pdf
• Static Analysis and Compiler Design for Idempotent Processing, PLDI 2012, pdf
• Idempotent Processor Architecture, MICRO 2011, pdf
• Design, Integration, and Implementation of the DySER Hardware Accelerator into OpenSPARC, HPCA 2012, pdf
• Dark Silicon and the End of Multicore Scaling, ISCA 2011, pdf; IEEE Micro Top Picks 2012
• Sampling + DMR: Practical and Low-overhead Permanent Fault Detection, ISCA 2011, pdf
• Challenge Benchmarks That Must be Conquered to Sustain the GPU Revolution, EAMA 2011, pdf
• Dynamically Specialized Datapaths for Energy Efficient Computing, HPCA 2011, pdf
• Relax: An Architectural Framework for Software Recovery of Hardware Faults, ISCA 2010, pdf
• A Fast and Highly Accurate Path Delay Emulation Framework for Logic-Emulation of Timing Speculation, ITC 2010, pdf
• PLUG: Flexible Lookup Modules for Rapid Deployment of New Protocols in High-speed Routers, SIGCOMM 2009, pdf
• Toward A Multicore Architecture for Real-time Raytracing, MICRO-41, 2008, pdf

Research Summary

I am interested in microarchitecture, architecture, and software issues for future computation systems and lead the Vertical research group. Technology constraints of unreliable hardware, process variations, and energy efficiency are going to define computation substrates of the future. My research goal is to understand the constraints of the underlying technology and applications and use these to derive architecture and microarchitecture solutions. Vertical Research Group Page.

Students

• Marc de Kruijf
• Venkatraman Govindaraju
• Lorenzo De Carli (co-advised with Somesh Jha)
• Chen-han Ho
• Sung Jin Kim
• Tony Nowatzki
• Emily Blem
• Raghu Balasubramanian
• Jai Menon
• Chris Frericks
• Ryan Cofell

Alumni

• Shuou Nomura (previously visiting research scholar, now at Toshiba)
• Garret Staus, BS First employment: Intel
• Amit Kumar, MS, First employment: Intel
• Jesse Benson, MS, First employment: Microsoft
• Matt Sinclair, PhD Student UIUC

Teaching (Teaching evaluations)

• Spring 2012: CS252 - Introduction to Computer Engineering
• Fall 2012: CS752 - Advanced Computer Architecture
• Spring 2013: CS552 - Introduction to Computer Architecture
• Previous courses
  • Fall 2011: CS758 - Building Microprocessors
  • Spring 2011: CS552 - Introduction to Computer Architecture
  • Fall 2010: CS752 - Advanced Computer Architecture I
  • Fall 2009: CS755 - VLSI Design
  • Spring 2009: CS552 - Introduction to Computer Architecture
  • Fall 2008: CS755 - VLSI Design
  • Spring 2008: CS552 - Introduction to Computer Architecture.
  • Fall 2007: CS752 - Advanced Computer Architecture I.
  • Spring 2007: CS752 - Advanced Computer Architecture I.

Education

• B.Tech - Indian Institute of Technology, Madras, 1999
• MS - The University of Texas at Austin, August 2006
• PhD - The University of Texas at Austin, December 2006

Bio: Karu Sankaralingam (http://www.cs.wisc.edu/~karu) is an assistant professor in the computer sciences department at the University of Wisconsin-Madison, where he also leads the Vertical Research Group (http://www.cs.wisc.edu/vertical/). His research interests include microarchitecture, architecture, and software issues for massively parallel computation systems. He is a recipient of the NSF CAREER award. He earned a PhD from The University of Texas at Austin in December 2006, and was the lead student architect of the TRIPS chip, a 170 million transistor chip.