Liberty Research Group

The Liberty Computer Architecture Research Group exploits unique opportunities exposed by considering the interaction of compilers and architectures to increase performance, to improve reliability, to reduce cost, to lower power, and to shorten the time to market of microprocessor systems. This objective is accomplished by providing critical computer architecture and compiler research, expertise, and prototypes to the community.

Current Members (all members...)

Faculty

David I. August
[Publications]

Graduate Students

Ishita Chaturvedi
[Publications]

Yebin Chon
[Publications]

Selected Publications (full list...)

NOELLE Offers Empowering LLVM Extensions (CGO 2022)

SCAF: A Speculation-Aware Collaborative Dependence Analysis Framework (PLDI 2020)

AsmDB: Understanding and Mitigating Front-End Stalls in Warehouse-Scale Computers (IEEE Micro’s "Top Picks" 2020, original work at ISCA 2019)

Perspective: A Sensible Approach to Speculative Automatic Parallelization (ASPLOS 2020)

Architectural Support for Containment-based Security (ASPLOS 2019)

Hardware Multithreaded Transactions (ASPLOS 2018)

Parcae: A System for Flexible Parallel Execution (PLDI 2012, related work at PLDI 2011)

Speculative Separation for Privatization and Reductions (PLDI 2012)

A Survey of the Practice of Computational Science (SC 2011)

Automatic CPU-GPU Communication Management and Optimization (PLDI 2011, related work at CGO 2012)

Commutative Set: A Language Extension for Implicit Parallel Programming (PLDI 2011)

Scalable Speculative Parallelization on Commodity Clusters (MICRO 2010, related work at CGO 2012)

DAFT: Decoupled Acyclic Fault Tolerance (PACT 2010, selected for IJPP 2012)

Speculative Parallelization Using Software Multi-threaded Transactions (ASPLOS 2010)

Revisiting the Sequential Programming Model for Multi-Core (IEEE Micro’s "Top Picks" 2008, original work at MICRO 2007)

Automatic Instruction-Level Software-Only Recovery Methods (IEEE Micro’s "Top Picks" 2007, original work at DSN 2006)

Recent News (more news...)

April 30, 2024: Our paper titled "PDIP: Priority Directed Instruction Prefetching" received Best Paper Award at ASPLOS 2024.
May 24th, 2022: Nayana Prasad Nagendra, her daughters, and David August at the hooding ceremony appears on Princeton News !
July 22, 2021: Our group together with Prof. Simone Campanoni's group and Dr. Michael Kruse received an award from DOE X-Stack to develop novel compiler techniques for translating programs from one parallel programming language to another!
July 9, 2021: Our group together with Prof. Simone Campanoni's group received an award from NSF PPoSS to evaluate the need for scaling in the Post-Moore's Law Era!
July 8, 2021: Our group together with Prof. Simone Campanoni's group received an award from NSF CCF to lay down the foundation for new parallelizing compilers!
June 30, 2021: A hearty congratulations goes to Nayana Prasad Nagendra for successfully defending her Ph.D. thesis. Good luck at ARM!
December 9, 2020: A hearty congratulations goes to Sotiris Apostolakis for successfully defending his Ph.D. thesis. Good luck at Google!
September 23, 2020: Congratulation to Sotiris Apostolakis for receiving a Siebel Scholars award!
January 13, 2020: Our paper, " AsmDB: Understanding and Mitigating Front-End Stalls in Warehouse-Scale Computers," was selected as one of IEEE Micro's Top Picks from Computer Architecture Conferences! IEEE Micro's Top Picks issue recognizes papers "based on novelty and potential for long-term impact in the field of computer architecture" in 2019.
May 21, 2019: A hearty congratulations goes to Stephen R. Beard for successfully defending his Ph.D. thesis. Good luck at TigerStone!
Aprl 20, 2019: Congrats to Hansen Zhang for getting married to Mingsha Xu!