My interests are quite broad, and range from computer architecture to artificial intelligence to user interfaces. I am pursuing a Ph.D. on the topic of automatically generating networks-on-chip in a GALS framework.
Current Projects
- GALS interconnect investigation with Ken Stevens of the ECE dept: I am looking to generate and optimize a network-on-chip for many-core embedded ASIC designs, most interestingly with simple asynchronous circuits for routing and flow control.
- Flight instrument for a hang glider or sailplane: Variometer (rate of altitude change), altimeter, GPS, moving map, speed-to-fly, etc.. All connected to a PocketPC. Currently, I have a working prototype for Vario/altimeter
Publications:
- Network Simplicity for Latency Insensitive Cores. Daniel Gebhardt, JunBok You, W. Scott Lee, Kenneth S. Stevens. IEEE Proceedings on NOCS. Newcastle, UK. April 2008. Poster
- Towards a High Quality Path-oriented Network Measurement and Storage System. David Johnson, Daniel Gebhardt, Jay Lepreau. Passive and Active Measurement Conference. Cleveland, Ohio. April 2008.
- Elastic Flow in an Application Specific Network-on-Chip. Daniel Gebhardt, Kenneth S. Stevens. Workshop on Formal Methods for GALS Design. Nice, France. May 2007.
- The Flexlab Approach to Realistic Evaluation of Networked Systems. Robert Ricci, Jonathon Duerig, Pramod Sanaga, Daniel Gebhardt, Mike Hibler, Kevin Atkinson, Junxing Zhang, Sneha Kasera, and Jay Lepreau. In Proc. of the Fourth USENIX Symposium on Networked Systems Design and Implementation (NSDI 2007), Cambridge, MA, April 2007.
- Flexlab: A Realistic, Controlled, and Friendly Environment for Evaluating Networked Systems, to appear in Fifth Workshop on Hot Topics in Networks (HotNets-V), Jonathon Duerig, Robert Ricci, Junxing Zhang, Daniel Gebhardt, Sneha Kasera, and Jay Lepreau. Irvine, CA, November 2006.
- Leveraging Bloom Filters for Smart Search Within NUCA Caches, Robert Ricci, Steve Barrus, Dan Gebhardt, Rajeev Balasubramonian, 7th Workshop on Complexity-Effective Design (WCED), held in conjunction with ISCA-33 , Boston, June 2006.
Past Projects
- Hardware Raytracer Architecture: Investigating the use of a dataflow-style architecture to allow a raytracer acceleration chip to provide orders of magnitude speedup for interactive raytracing. Think a GPU for raytracing.
- Flexlab: I worked on this Flux group project to provide Emulab experiments real internet connection statistics from PlanetLab sites.
- DARPA Urban Challenge: I was involved at the early stages of the Utah team that constructed an autonomous vehicle for an urban environment.
- Mote power measurement system - allows an experimenter to record, and watch in "real time", the current draw of a mica 2 mote. This project is an extension of Emulab. Key design point of this was cost (~ $35 ea. when in quantity). Tech report coming soon.
- (undergrad at University of Portland) - A telemetry system for a radio-controlled helicopter. Project Chinook
- (Product release) RCTL - The Radio Control engine Temperature Logger. Log engine temperature (used in a radio controlled helicopter), and transfer to a TI-89/92 graphing calculator.
Past Experience
- Technical Intern, Synopsys Inc., Hillsboro, OR. Summer 2007.
- Research Assistant, Flux Group, 2005-2006.
- Teaching Assistant, University of Utah, Computer Organization, 2004-2005.
- Software Intern at Hewlett-Packard (Summers 2004, 2005)
- Civil Engineering and Surveying at Quadrant Consulting, Inc. (Summers 2001, 2002, 2003).
- Computer Consulting and Tech support, freelance (1996 -> present).
Personal
I enjoy mountain biking, soccer, hang gliding, hiking,
and many other activities.
