John (Jack) Sampson
Postdoctoral Scholar
Contact information:
Office: EBU-3B 3204
CSE Department, UCSD
Recent news - Bio - CV and other documents - Papers - Teaching
Recent news
| January, 2013 | This year's Dark Silicon Workshop's will be held on June 24th in Tel-Aviv in conjunction with ISCA 2013! DaSi submissions will be due March 29th. | |
| December, 2012 | Planning underway for the Dark Silicon Workshop's 2nd year. More information will be posted as details are resolved. | |
| June 10, 2012 | DaSi 2012 features 12 talks attended by more than 60 people! | |
| Feb 2012 |  Submit to the Dark Silicon Workshop, DaSi. by Apr 2. |
- I am a postdoctoral scholar at UCSD working on the Greendroid project with Steven Swanson and Michael Taylor at the UCSD Center for Dark Silicon.
I am interested in the design and implementation of novel architectures that make use of increasingly plentiful transistor resources to improve the energy-efficiency of executing code and to provide qualitatively new features in support of higher-level language constructs. My recent work has focused on designs that exploit the new trade-offs among area, power, and performance brought about by the growing trend of dark silicon. My interests are primarily in the area of computer architecture, but include aspects of compilers and VLSI as they relate to developing and using customizable processors, increasing hardware specialization, implementing aggressive power management techniques, designing energy-efficient circuits, and deploying other means of controlling and exploiting the growth of dark silicon. I am also interested in architectural enhancements to multi-core memory systems to accelerate and extend support for parallel software constructs and richer memory semantics, as well as the design of on-chip memory networks for massively-heterogeneous many-core systems.
- I am one of the organizers for DaSi, the Dark Silicon Workshop.
- For an overview of my publications, you can check out my Google Scholar profile or look at the sections below.
- CV (PDF)
- Research Statement (PDF)
- Teaching Statement (PDF)
- Design and Architecture of Automatically-generated Energy-reducing Coprocessors
Jack Sampson. (Thesis, September 2010)
- Managing Distributed UPS Energy for Effective Power Capping in Data Centers
Vasileios Kontorinis, L.Zhang, B.Aksanli, Jack Sampson, Houman Homayoun, Edward Pettis, Tajana Rosing, Dean Tullsen. (ISCA 2012)
- GreenDroid: An Architecture for the Dark Silicon Age
Nathan Goulding-Hotta, Jack Sampson, Qiaoshi Zheng, Vikram Bhatt, Joe Auricchio, Steven Swanson, and Michael Bedford Taylor. (ASP-DAC 2012)
- QsCores: Configurable Co-processors to Trade Dark Silicon for Energy Efficiency in a Scalable Manner
Ganesh Venkatesh, Jack Sampson, Nathan Goulding, Sravanthi Kota Venkata, Steven Swanson, and Michael Bedford Taylor. (MICRO 2011)
- An Evaluation of Selective Depipelining for FPGA-based Energy-Reducing Irregular Code Coprocessors
Jack Sampson, Manish Arora, Nathan Goulding-Hotta, Ganesh Venkatesh, Jonathan Babb, Vikram Bhatt, Steven Swanson, and Michael Bedford Taylor. (FPL 2011)
- Reducing the Energy Cost of Irregular Code Bases in Soft Processor Systems
Manish Arora, Jack Sampson, Nathan Goulding, Jonathan Babb, Ganesh Venkatesh, Michael Taylor, and Steven Swanson. (FCCM 2011)
- The GreenDroid Mobile Application Processor: An Architecture for Silicon's Dark Future
Nathan Goulding-Hotta, Jack Sampson, Ganesh Venkatesh, Saturnino Garcia, Joe Auricchio, Po-Chao Huang, Manish Arora, Siddhartha Nath, Vikram Bhatt, Jonathan Babb, Steven Swanson, and Michael Bedford Taylor. (IEEE MICRO, March-April, 2011)
- Efficient Complex Operators for Irregular Codes.
Jack Sampson, Ganesh Venkatesh, Nathan Goulding-Hotta, Saturnino Garcia, Steven Swanson, Michael Bedford Taylor. (HPCA 2011) (Talk)
- GreenDroid: A Mobile Application Processor for a Future of Dark Silicon
Nathan Goulding, Jack Sampson, Ganesh Venkatesh, Saturnino Garcia, Joe Auricchio, Jonathan Babb, Michael Bedford Taylor, and Steven Swanson. (HotChips 2010)
- Conservation Cores: Reducing the Energy of Mature Computations.
Ganesh Venkatesh, Jack Sampson, Nathan Goulding, Saturnino Garcia, Vladyslav Bryksin, Jose Lugo-Martinez, Steven Swanson, Michael Bedford Taylor. (ASPLOS 2010)(Talk)
- Exploiting Fine-Grained Data Parallelism with Chip Multiprocessors and Fast Barriers.
Jack Sampson, Ruben Gonzalez, Jean-Francois Collard, Norm Jouppi, Mike Schlansker and Brad Calder. (MICRO 2006)(Talk)
- The Potential Energy Efficiency of Vector Acceleration.
Christophe Lemuet, Jack Sampson, Jean-Francois Collard, Norm Jouppi. (SC 2006)
- Unbounded Page-Based Transactional Memory.
Weihaw Chuang, Satish Narayanasamy, Ganesh Venkatesh, Jack Sampson, Michael Van Biesbrouck, Gilles Pokam, Osvaldo Colavin, and Brad Calder. (ASPLOS 2006)
- Detecting Phases in Parallel Applications on Shared Memory Architectures.
Erez Perelman, Marzia Polito, Jean-Yves Bouguet, John Sampson, Brad Calder, Carole Dulong. (IPDPS 2006)
- Exploiting Program Microarchitecture Independent Characteristics and Phase Behavior for Reduced Benchmark Suite Simulation.
Lieven Eeckhout, John Sampson, and Brad Calder. (IISWC 2005)
- The Strong Correlation Between Code Signatures and Performance.
Jeremy Lau, Jack Sampson, Erez Perelman, Greg Hamerly, and Brad Calder. (ISPASS 2005)
- SiChrome: Mobile Web Browsing in Hardware to Save Energy.
Vikram Bhatt, Nathan Goulding-Hotta, Qiaoshi Zheng, Jack Sampson, Steven Swanson and Michael Bedford Taylor. The 1st Dark Silicon Workshop. 2012
- Fast synchronization for chip multiprocessors.
Jack Sampson, Ruben Gonzalez, Jean-Francois Collard, Norman P. Jouppi, Mike Schlansker. dasCMP 2005.
- US7587555: Program thread synchronization.
Jean-Francois Collard, Norman P. Jouppi, John M Sampson
- I have been a teaching assistant eight times: seven times at UC Berkeley as an undergraduate/graduated-non-student, and once at UC San Diego as a graduate student.
- I haven't found a publicly visible page that displays the UCSD TA evaluations.
UCSD, Spring 2006 - CSE 141/141L: 4.178/4.748 (respectively). Ratings are on a 5 scale.
- Evaluations for 5 out of the 7 times I was a TA at UC Berkeley. Summer 2000 and Summer 2002 CS 61B do not appear to be listed.