High-Performance Low-Power (hplp) Lab

The High-Performance Low-Power (HPLP) Laboratory is dedicated to research in the area of Very Large Scale Integrated (VLSI) Circuit design. Ongoing research ranges from power-, temperature- and reliability-aware CMOS circuit design to explorations in spintronics and nanoelectronics.


OldSpot Simulator is released!

posted Oct 19, 2018, 10:12 AM by Xinfei Guo   [ updated Oct 19, 2018, 10:12 AM ]

OldSpot is a simulation framework for estimating the lifetime of an SoC at the architectural unit level with support for failure tolerance. It can simulate heterogeneous systems with different types of cores (i.e. general-purpose cores or application specific accelerators) and resources shared among them such as last-level cache. For more detailed information on OldSpot, please refer to:

  • A. Roelke, X. Guo, and M. R. Stan, "OldSpot: A Pre-RTL Model for Fine-grained Aging and Lifetime Optimization." In Proceedings of the 36th IEEE International Conference on Computer Design, October 2018.
  • Chapter 3 of A. Roelke, "Improving Reliability and Security with Aging and Pre-RTL Modeling." PhD Thesis, University of Virginia, 2018.

OldSpot also incorporates device-level models which it uses to compute the aging of each microarchitectural units. It includes models for negative bias temperature instability (NBTI), electromigration (EM), hot-carrier injection (HCI), and time-dependent dielectric breakdown (TDDB).

To download OldSpot or learn more about it, please go to https://github.com/hplp/oldspot.

Congratulations to all of the 2018 HPLP graduates!

posted May 29, 2018, 1:10 PM by Tommy Tracy

On the 20th of May UVa had its graduation for the class of 2018. Congratulations to the following HPLP students:
Xinfei Guo, Alec Roelke, Ted Xie, Minyan Gao, Ben Ghaemmaghami, and Yung-Chih Chen

Congratulations to Alec for successfully defending his PhD dissertation!

posted Apr 20, 2018, 6:45 AM by Xinfei Guo

Alec successfully defended his PhD dissertation on "Improving Reliability and Security with Aging and Pre-RTL Modeling". Way to go! Dr. Roelke!

HPLP work recognized as "ACM SIGARCH/IEEE-CS TCCA Influential ISCA paper award"

posted Apr 20, 2018, 6:43 AM by Xinfei Guo

The paper "Temperature-Aware Microarchitecture" HPLP students in collaboration with Prof. Skadron's students published 15 years ago was recently selected for the ACM SIGARCH/IEEE-CS TCCA Influential ISCA paper award! The award recognizes the paper from the ISCA proceedings 15 years earlier that has had the most impact on the field during the intervening years. This is a significant and richly deserved honor! Congratulations!

The full author list of the paper is: Skadron, Kevin, Mircea R. Stan, Wei Huang, Sivakumar Velusamy, Karthik Sankaranarayanan, and David Tarjan. The paper is available here https://ieeexplore.ieee.org/abstract/document/1206984/.

Congratulations to Xinfei for successfully defending his PhD dissertation!

posted Mar 23, 2018, 4:01 PM by Xinfei Guo   [ updated Mar 23, 2018, 4:03 PM ]

Xinfei successfully defended his PhD dissertation on "Towards Wearout-Aware and Accelerated Self-Healing Digital Systems". Way to go! Dr. Guo!
Photo Credit: Tom Tracy

UVA Engineering Tapped to Lead $27.5 Million Center to Reinvent Computing

posted Jan 15, 2018, 6:59 PM by Xinfei Guo   [ updated Jan 15, 2018, 7:00 PM ]

In the next five years, HPLP researchers will be heavily involved in the new Center for Research in Intelligent Storage and Processing in Memory, or CRISP that is funded through JUMP program under SRC. Here is a news announcement.

Alec presented his RISC-5 Simulator work at 7th RISC-V workshop!

posted Dec 9, 2017, 9:48 AM by Xinfei Guo

Alec presented his RISC-5 work at the 7th RISC-V Workshop in Western Digital, California. His presentation can be found here. The proceedings of the workshop can be found at RISC-V website. Here is the presentation video. 

Celebration Dinner for Ted's graduation and holidays!

posted Dec 8, 2017, 5:12 PM by Xinfei Guo   [ updated Dec 8, 2017, 5:20 PM ]

December 2017, Peter Chang, Charlottesville, VA
Clockwise: Alec, Tom, Ted, Amy, Mircea, Yunfei, Pai, Junhan, Xinfei, Wole, Mandi, Sergiu, Elisa, Vaibhav
Not Pictured: Patricia, Mateja, Minyan, Yung-Chih, Ben

Ted successfully defended his Master's thesis!

posted Dec 7, 2017, 9:29 PM by Xinfei Guo

Ted successfully defended his Master's thesis on FPGA Automata Processing! He will join Falcon Computing! Good luck to the new life!

Vaibhav passed his Qual!

posted Nov 13, 2017, 4:05 PM by Xinfei Guo

Vaibhav (EE) passed his Qual! Congratulation!

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